G-Force Performance Chip

I ran across these performance chips. I have had a performance chip in my 928 S4 from Autothority and it did impove the performance of my car. Has anyone tried these chips on their 996 Any imput is appreciated

Its garbage. All it is is a resistor that fools the computer into thinking the motor is cold so it injects more fuel.

Thank you

Yea, I've always heard NONE of them ADD Anything! Now on diesel engines, that's another story. jmo

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Not necessarily , as reflected in my original post, I used the AA chip in my 928 S4, and no doubt I could definately sense the improved power and this was so from others in the 928 community. So, some chips do make an improvement in performance

Often that sense of improvement comes from them reducing power down low, then you feel an uplift in the higher rpm and think, wow I felt a real kick there...

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My knowledge of mechanics if very basic, so is it a " BAD " thing for the resistor to fool the computer into thinking the motor is cold and injects more fuel??

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More fuel doesnt always mean more power. More fuel does mean worse fuel economy, and can also mean bore wash where the fuel is so rich it washes the oil out. More fuel is only going to be beneficial if you were running too lean at any point. You dont make more power by just adding more fuel, you need more air as well to get a bigger bang. So basically its a very one sided and basic attempt to solve a problem that doesnt exist.

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Did you Dyno it? The proof is in the Pudding! I'd have to see it to believe it, but if it makes you THINK it's faster, then that's all that matters! jmo

Thank you to this group, the feedback is very productive and makes my decision much easier. Great group here at the 996 board

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Good Luck Larry, let us know how it turns out!

No experience with chips in Porsche, but they are a well accepted means of increasing certain performance aspects in BMW. I added a Dinan chip to a 540i and it transformed the car by getting rid of the built-in throttle lag (BMW didn't want to overly excite their median US buyer), and it raised the rev limiter which was crucial on the 6 spd. Supposedly there were some other modest gains in HP/torque but I doubt they were enough to notice on their own. That engine was built to withstand much higher peak revs and was very early in its sweet spot when hitting the factory set rpm limit. The difference was only about 400 rpm as I recall but it made all the difference in terms of shifting at a more natural feeling point in the performance band. Those attributes seem to have been well sorted out by the factory on our P-cars but if I could gain similar performance increases without compromising other aspects of the car I would do it without hesitation.

It is my understanding that Porsche left very little performance on the table with the 996 Carreras(the 996 Turbo is a different story), which is why you can spend a lot of money on performance mods for these cars and have little to show for it. You can spend a small fortune on performance mods for these cars(intake plenums, cold air intakes, exhaust, chips, etc) and experience relatively little improvement on a dyno. In fact, certain “performance” parts for these cars actually decrease power. I’d be willing to bet that the performance chip would do two main things, increase throttle response and increase redline as mentioned previously. Improving throttle response, by changing the sensitivity of the throttle-by-wire system, would probably make the car feel a bit quicker when you first put your foot in it. On the other hand, increasing the redline on the 996 Carrera would not improve performance as the engine(3.4L) makes peak horsepower at 6800 RPM and then HP falls off pretty rapidly. The stock 7300 RPM redline is probably more than adequate. Any other tricks the chip is claimed to perform I’d be very skeptical of. Anyone here actually tried this, or any other chip, on a 996 Carrera?

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There are "real" chips out there that boost performance. Chips that actually alter the programming of the DME. I had a 944 that had a real chip. However, I haven't heard of any for the M96 engine. There are DME flashes that you can do to reprogram the DME and bost performance. The G-Force is not a real chip, its just a resistor. If you look on the website, its available for almost every car made. Sound like a "cure what ails ya" solution? Thats what it is, snake oil.

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Good write up DreamCarrera, there's always going to be those guys that think they work no matter what you tell them. An Extra 69hp for JUST $69 (NOT), you could spend a legit 5k & be hard pressed to do that! jmo

My car is chipped. The "fooling the engine into thinking it's cold" thing is not really true. Chips do one thing, and that's alter the timing and mixture at a given throttle position. There are two ways chips can alter performance. One is by removing the timing and mixture accommodations Porsche makes for the use of regular fuel (this is why you have to run premium after installing most ECU flashes). The other is by getting rid of the settings that allow the car to pass the EPA's urban drive cycle. Some flash products also raise the redline slightly, which would be helpful on a track car where delaying an upshift even a little can make a big difference. There is no doubt that a good ECU flash will improve performance on paper, no matter what the skeptics say, especially if you do other things at the same time. But, speaking from experience, the improvement is very, very slight, and you notice it for about a week after which it becomes "normal". I think on a track car, there could be a few hundredths in it for a well set up car, but honestly, few of us are driving at that level. You will sometimes hear people say that the difference an ECU flash made was "huge". It can feel that way, and here's why I think that is: this engine's adaptive ability seems, to the seat of my pants, to have exceptional range. If you drive your car in the city most of the time, take it out for an hour or two on the open road and thrash it. When you come back, you'll find the throttle seems smoother and more responsive, and the car is noticeably perkier. You'll hear modders delighted with intakes, exhausts and chips, when at least some of the reason is that they simply drove their cars harder after they installed them. This was roughly the magnitude of the change I noticed when I flashed my ECU. In other words, most of us will get the same kind of seat of the pants gain just by driving our cars harder. The benefit that lasted, from my point of view, was what DreamCarrera called throttle response. In fact, an ECU flash won't improve throttle response in the technical sense (you can buy other widgets that do this), but it feels that way because it eliminates the off-idle flat spot that I think is there as a byproduct of emissions compliance. As a package, I totally enjoy my ECU flash/intake/plenum/exhaust combo, but I will never claim it was worth the money.

The only way you would want to spend the money asked by most of these vendors is if you had a car with fuel cut off or a rev limited 'speed limit' programed into the factory ECU. Most of these chip makers program out the speed limiting cut off points - but not all of them - you have to ask as the liability lawyers warn them not to offer this feature or advertise it. As one poster here mentioned, it also kills your chances at passing air testing unless you can swap out chips back to the OEM. There is new testing (software) coming soon to my jurisdiction that when plugged in to the OB2 port will flag a non-OEM ECU updates that will void the test. Supposedly it is coming in two years time and will be retroactive to all models with OB2. If this becomes widespread it could kill off the chip programers unless they provide cheap and easy ways to do OEM reverts. You'd get better acceleration response by reducing weight, say no spare tire up front, lighter battery - then hundreds of dollars on someone adjusting out the 'safe' limits to your ECU programing to a razor edge limit. A very fast pro driver once told me he could make my car way faster around the track for very little dollars - like 5-6 seconds faster for a few hundred bucks. I'm all ears now. I ask how? He says 'driver coaching'. Point taken I replied.

I live where you live, and this seems like an odd story to me. For one thing, chips aren't physical in OBD2 cars. It's a flash overwrite. For another, car companies update their software all the time. I can't imagine the effort it would take to get every car company to agree to 'mark' their software updates so a provincial government smog test can recognize them. Especially when all the government cares about is whether the car runs clean or not, which they're already testing for. My car passes Ontario emissions with flying colours. This past spring, it actually produced better results than it did when I bought it and before I modded it. Running on ethanol free premium fuel and well warmed up, this is a very clean running car, chip or no. And, in any case, the pass/fail standard takes into account cars that are a lot older than ours. I don't think this is anything to worry about.

Its garbage. All it is is a resistor that fools the computer into thinking the motor is cold so it injects more fuel.

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Way off topic alert. But because you asked Bruce: The plug in is via OB2 but the software rev is 'readable'. Very few cars unless they are recalled for an ECU issue ever get a new flash. I've owned many cars and never once had the eprom pulled and reflashed. There are very few manufacturers that (using their proprietary testing software) cannot spot an altered program. I know for a fact that GM has voided warranties over non approved 'tampering' and I suspect Porsche has the ability to do this as well. Many chip's disable the EGR or air secondary injectors for added performance - this would show up as not functional. Certainly running in a rich state is a dead giveaway. The following was taken from a paper supporting changing from current tailpipe testing to OB2 testing: It's partly driven by consumer complaints of being ripped off over fake repairs; OB2 testing does not require the expensive testing equipment and facilities as tailpipe testing; and the current leasing agreements for this testing equipment is coming up for renewal in the next few years, (In Ontario). BC is currently doing overlap testing - they do both OB2 and tailpipe (IM240) to gather data for both Transport Canada and the EPA. You only pass or fail currently on the tailpipe test but the data is compared between both tests. There is also a US State doing the same with the results shared with TC, CARB the EPA. The current issue is with the number of pre-OB2 cars on the road - they still require the tailpipe testing. In Canada it's pretty much any car under 1998, certainly all of them under 1996. As you quite rightly pointed out Bruce, today's cars are putting out air that is cleaner out the tailpipe then just about what went in the intake - or it seems anyway when you look at the test scores of properly serviced modern cars. That is driving the Governments thinking in trying to find a better, easier and cheaper way to test cars. There has been a lot of poor public support lately for testing that is seen as a money grabbing tax on proper running cars. So if Governments can find a way to lower costs in a large way for them and a small way for us, then that's the thinking. Chipping the car, 'cheats' the system if we were to use OB2 testing so therefore Governments are going to go straight to manufactures and force them to set the ECU interrogation parameters so that testing software can audit the ECU for unapproved changes. As I stated, Ontario is 'thinking' of this as the future for the Clean Air program - a program they cannot kill off even if it is doing useless testing on today's cars. The headlines by various 'Green' groups would be along the lines of, "No more clean cars in Ontario"! You know how they work. Another reason why Governments want OB2 testing instead of tailpipe: As to can anyone SEE you've chipped your car...

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You must live in a magical world, where resistors can be installed through OBD ports, and cold cars make more power than warm ones do. Send us a postcard, won't you?

Torontoworker, the new piece of information here, for me, is that CARB required exactly the 'marking' I was talking about. I wasn't aware of this, and you can understand why: the tuning business in California has been doing just fine since 2005. It hasn't been an issue so far, and California-legal claims have been made for ECU flashes all over the place (granting they're just claims). Some OEMs even offer flashes themselves, suggesting that it's possible to write the code without creating the check-sum issues you mention here. In fact, there seems to be a lot of headroom for modding even under California law, when you consider, for example, that I can go to a Toyota dealer and get a California legal supercharger, intake and exhaust bolted on, complete with a fresh ECU flash to deal with the supercharger. So I don't know how much of a concern this really is (and it's obviously no concern at all if your car is older than 2005). Bear in mind, the source of your information is an advocate for the OBD solution. If other green debates are any indication, not every advocacy group can be relied on to present the whole story. But don't get me started on the Ontario government... As an aside, I think ECU updates are a little more common than you might think. Both of our other cars have had them via TSBs (my truck, and my wife's MINI). Nothing needs to be "pulled". They just plug into the OBD port and upload. What will be interesting to see in all this is where privacy fits. The data on your ECU is coveted by insurance companies, and there have already been some interesting court precedents about who has the right to it. I advised a PAYD startup last year who used an OBD plug-in module with GPS to monitor a car's movements and condition. Creepy. Anyway, thanks for your detailed reply.

Have you seen this? click on the picture http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=320632328237&fromMakeTrack=true&ssPageName=VIP:watchlink:top:en#ht_1823wt_1144

Also, I had a similar question not long ago, and a forum member had this answer for me... I found it very informative: "Modern engines with their electronic engine management, fueling, sparking, etc. are quite able to adapt to a pretty amazing set of conditions. For just a muffler swap unlikely any tweaking of the fuel maps/timing maps are necessary. The range of adaptation that exists will suffice. The DME will adapt and fueling will be ok. Timing runs as advanced as it can run which is often just short of producing detonation. Where a custom flash might be necessary is if the exhaust system (and this mod is accompanied by intake system changes) is sufficiently different that flow through the engine is different enough that the stock flash's assumptions about variable valve timing, variable valve lift, intake resonance control, things like this, need to be tweaked to derive max. benefit from the other mods. What you can do is of course consult with the exhaust (muffler) maker and see what if any recommendations it has. If any are required one would have to believe the product's maker would be willing to share this so max. benefit form this add-on in to be had by the customer. Additionally, you can seek out a shop that can test the air/fuel ratios (4-gas exhaust analyzer?) so see if the engine's DME needs tweaking. Sincerely, Macster."

WOW, & its from vividracing (on a dyno) looks legit, wonder if we could get a price break if we had enough that wanted one! Does anybody know anything about them, first time I've ever seen that one. And I've always been a big believer that they were all just gimmicks! Could this one be any different.

I used GIAC and it does work...

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+1 there. My 7.3 F350 gained a ton of HP and Torque with a piggyback computer. IIRC, the gain was 60 hp and about 100ft-lbs. This was a turbo of course, to engine longevity was probably compromised a bit. That truck would haul 15,000 lbs up a decent grade without missing a beat.

I am really glad that I started this thread. The reference to Vivid Racing opend my eyes and I beg to ask the question, " Is 22HP worth $895.00 ?" I think I will look into investing into a GT2 wing

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I doubt very much they only use throttle position, they typically also use the MAP or RPM etc as well, TPS only is not a good indicator to base a fuel and timing map off.

My personal experience with chipping NA vehicles has been less than impressive. You can pick up modest performance improvements, but usually at the expense of something else like coils. Turbos are a different matter. You can really really get some significant improvements in a boosted vehicle with minimal risk to other components as long as you can deal with heat evacuation.

I agree with Larry $895 for 20 HP ?.... this is a 7% gain - If it is really available for your available pump gas. Regular Shell up here is at best 92 and with Ethanol now. If I believed TechArt, I already have nearly 20 more HP with my Exhaust System. And that cost the PO $3500. That make this look like a good deal. TechArt advertises a 25 HP Gain with a Flash plus the Exhaust and a hi flow air filter. So if you really want a bit more the Flash may be worth it to you but... what are you giving up? I am really very happy with the power and Throttle response of my Carrera, so I would be happy with a better tank of Ethanol free 94 octane gas.

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morgan, that's one thing I've noticed on the Porsches is it costs mega $$$ for just a few extra hp, this chip pretty much stays along the same price per hp as everything else. Which I've never thought any of them were worth it, I guess thats why mine is still stock. Same as the carbon fiber, it looks good but not THAT good! jmo

All power in NA applications costs a lot, its not a Porsche specific issue! I spent around 15k on my Toyota 1600cc race motor for an extra 45WHP.

Last year at the PCA Tech Tactics East I sat in on a session on tuning by Scott Slauson. He said as a general rule most Porsche ECU's were designed to about 90% of their performance potential. Scott also said that there are a lot of people out there claim to be experts making ECU flashes. I am no expert but it would be very unlikely that Porsche would program the ECU such that it is at the limit. There are compromises as a ECU map that takes an engine closer to its limits has less margin for error and can result in reliability issues.

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The ad reads $895 but also has the option to "Make Offer", which means that they will take less for just one customer... I am sure that the discount will be further for multiple orders. Remember, this is just software download, and a USB cable (which probably is under $20)... They made their costs back a long time ago. +1 I have flashed NA cars as well, and I can tell you that anything under 30hp will NOT be felt... Also, I wonder if they raise the rev limiter? To me (from a very baddddd experience) this is a totally stupid and dangerous thing to do. If this software has safe parameters, then the decision is just a function of cost. 22 crank hp is not the same as 22 wheel horse power (which is true hp)...so it's not like you will feel it, but you will have it.

Regarding the OBD II lockdown for emissions... This is ridiculous. I think it is important to be a good steward of the environment but for the number of cars that really would want to cheat the test I think it would be a waste of tax payer and manufacturer resources to try to implement what was proposed. I would like to know the true percentage of tuned cars versus the total number of cars out on the street. It is probably even much less than the number of "heavy" vehicles that do not have to meet the emissions and mileage regulations. This reminds me of the environmentalist that were (are) trying to mandate a speed limit on the autobahn. Doing so would have minimal impact on pollution as much of the autobahn already has speed limits and in areas where there are no limits everybody is not driving at WOT.

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Great write-up and right on the money. Or save your money for a turbo if you want more HP.

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Yes, it is, if this is what you wanted to hear. But it's not really technically factual, and the author has by his own admission never driven a modified car. For one thing, Porsche did leave "horsepower on the table." I refer you to the earlier poster's comment from the tech seminar. There is absolutely no chance these engines were shipped at 100% of their potential, given the risk Porsche has on things like variable fuel quality. And that's just one reason they would tune conservatively. I'm happy to bore you with the vagaries of the EPA urban drive cycle, if you're up for it. It's up to you to decide if the gains matter or are worth the money, but it's not true to say they're imaginary. I also agree that raising the redline slightly doesn't mean much. That is, unless you autocross, where being able to delay a shift for another 300 rpm can, on some courses, be quite meaningful. DreamCarrera incorrectly characterizes the benefit, here. It's not about more horsepower, it's about the gap between gear ratios and the horsepower you'd be making if you were forced to upshift. A small market, I admit, but somebody out there cares. I think when people say that they think these mods don't do anything, it's kind of an insult to those of us who spent the money. I totally support anybody's right to an opinion about whether these mods are worth it. It's not necessary to take it to the point where you imply people like me are imagining things and thus fools.

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Dude - Relax, I never said your gains were imaginary and neither I nor the previous poster insulted you in any way. And certainly no one called you a "fool". Why so defensive? I simply stated that the gains to be realized by modifying these NA 996s pale in comparison to the cost, which is simply MHO. I stated that Porsche left “very little” on the table, I did not say that Porsche left “nothing” on the table. Is there something to be gained from certain mods? Of course there is, Porsche detuned these cars for real world owners. The real question is whether or not the mods are worth it. It is up to each individual owner to decide whether or not the slight bump in HP is worth the extra cost. To me it is not worth it. This is just my opinion, nothing more. You yourself previously stated that the money you spent on mods was probably not worth it, or something to that effect. It's true that I have never driven a modified 996 but I'd be willing to bet my but dyno couldn't tell the difference as I was unable to detect the extra power of a 996 MKII compared to my MKI. Also, I did not incorrectly characterize anything in my discussion on raising the redline. Perhaps you should go back and re-read my post before calling me out in such a way. I am well aware of the reasoning behind raising the redline. As I previously stated, these cars make peak HP at about 6800 RPM and after that the HP falls off abruptly. IMHO, and I do track/AX the car, the 7,300 RPM redline is sufficient. The gearing in these cars is close enough that shifting at the redline leaves you in the meat of the HP/TQ curve when entering the next higher gear. Would raising the redline a few hundred RPM help here? Maybe or maybe not, but it would not be worth the potential risks to the engine. There is absolutely no reason to take offense to my comments and I certainly never claimed that you were imagining things.

I'm NO WHERE near as knowledgeable as you guys are on this matter, BUT like I said before put it on the DYNO, end of discussion! jmo

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You'd think. But I've never seen a dyno posted to a board like this where people didn't chime in about how unreliable dynos were and how you can't control for changes in ambient conditions between the pre- and post-mod runs. There is no evidence-based case that will convince someone away from their position on mods, pro or con. It's not just this board, either. People get religious about this subject for some reason.

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I will never defend what I spent. This is called being reasonable and letting people make their own conclusions. I've never seen an enthusiast message board where people could have a civil conversation about this, so I try not to look like I have a strong opinion or to impose it on others. But neither did I say I regretted what I spent. Let's face it, some people don't think Porsches are worth the money, either. While it's true you parsed your language as you say, it is also true that you are essentially dismissing the value of these mods without either technical or personal experience. I think that needs to be called out so that nobody mistakes a well written post for an accurate one. I was careful to say that this might not be interesting to everyone, just what it was for. I will add that your track experience with the car cannot be generalized to all tracks and all drivers. Racers like to make their own decisions about shift points. It's a relatively long way from second to third in this car, and torque starts to fall off a couple thousand rpm before the horsepower peak. For someone, somewhere, that might be worth a few hundredths. The blanket statement that "7,300 rpm is sufficient" is true for you, but, again, not universally so. Butt dynos, to use your term, are infallible. Nobody's is wrong, which is why I never defend my mods. It's legitimate to say, "I drove one, and couldn't tell the difference." It's less legitimate to say, "I've never driven one, but I bet I couldn't tell the difference."

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This statement is not accurate. I am not completely dismissing mods as worthless but I do question their value for the NA 996s based purely on economic terms. While it is true that I have never personally modified my 996, I have owned my car(996) for about 7 years now and during that time I have toyed with the idea of modifying the car. I have investigated various mods and I have researched the claims made by the manufacturers, those who have purchased the products, as well as dyno results posted by both the manufacturers and customers. So I would say that my understanding of the various mods is somewhat educated but I am certainly by no means an expert. In the end I decided that the gains to be achieved by modifying my 996 were not worth the expense to me. You chose otherwise and I certainly respect your choice. I�d be willing to bet good money that if we dyno tested our cars side by side, my bone stock 2000 C2 vs. your modified 2000 C2(I think you have a 2000?), your car would put up better numbers. I�d also be willing to bet that the increase in power would not be enough to prompt me to purchase the mods for my car, although all of this is pure speculation. One thing I am sure of, however is that we will not be doing this side by side test anytime soon so my $X,000 is safely tucked in the bank for now.

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The funny thing is, I don't have a lot of interest in the numbers. I've never been much of a bench racer. I haven't even had my car dynoed. I did what I did because I had a certain goal in mind, which was to give the car a more 'analog' personality without making it high strung or compromising reliability. Powertrain mod-wise, I did the SSK, intake, plenum, flash, exhaust and RS motor mounts. I think if you drove it, you'd agree it feels different than yours. That's something you just can't know any other way. To me, unless you race, that's what tuning is about. Customizing, more than improving (this is also a great 911 tradition). That's why I'm reluctant to judge the value of a mod, especially on paper. It is, in the end, 100% subjective.

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That�s a great point. Modifying a car to change its personality is often overlooked and usually gets lost in the emphasis on performance numbers. Unfortunately, to really get a feel for this(personality change) you need to test the mod before buying which is hard to do unless you can test drive a car that already has the modifications you are considering. I�ve been kicking around the idea of replacing my stock suspension with an ROW M030 or PSS10 set up to give the car a more go-cart type feel, not to mention the other benefits of a sportier suspension. However, as of yet, I have been unable to secure a test drive in a car with these suspension mods.

I contacted Vivid Racing, and they informed me that raising the rev limit is up to the customer, ... I also asked if their flash has any affect on the coils and they said it has none. From tuning motorcycles in the past, it would seem that this type of mod is best suited to cars that have a modded, high flow intakes and exhausts... From experience, a high flow intake causes our cars to run lean (I confirmed this by having my indy mechanic hook up my car's computer to read the codes from it). So perhaps flashing the ecu of a car modded with a high flow intake would not be a bad idea... however the power gains will be modest at best.

The fact of the matter is that chipping is an extremely crud way to manage the tune, they can never accurately account for every cars mods, its the last way of tuning I would adopt when modifying an engine. Way to risky.

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Agreed, although Vivid does ask you what mods and octane fuel you are running before they send you a pre-set...the best way is to make a custom tune with the aid of a dyno... just like with a motorcycle, it is better to tune a Power Commander with a dyno (instead of downloading a preset tune).

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Even then its just a guess, I doubt they have had every combination of mods on the dyno to come up with a chip for each brand of headers, intake, head work etc. Really modding the N/A 3.4 is a waste of time unless its for the track. And trust me, I have modded my fair share of cars in my day!

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That's why I am agreeing with you...

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[Image-only post; no author-written text. Original image references:] https://rennlist.com/forums/images/smilies/beerchug.gif

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This is the kind of speculative blanket statement that makes threads like this pointless.

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Which is Why I can't Believe this thread has went this long!

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You mean opinions based on a lot of experience, yup.

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Damn NZ, I can't believe you spent all that moola on just a few extra hp, but hey, it's YOUR car & if thats what makes you happy, then thats ALL that matters! jmo

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Yup, huge amount of money, and would be a waste on the street, but on the track (its a dedicated track car in class racing) its necessary to be competitive.

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My apologies. I'd be very interested to hear about your experience tuning the M96 engine.

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Sure what do you want to specifically know?

Well, you condemned them all, and I assume you haven't tried them all. But let's start with one. Tell us which flash you tried on a 3.4 M96 Porsche engine, what your before and after dyno numbers were, your driving impressions, that kind of thing. You're impugning a lot of companies and a lot of customers here. That kind of makes you the prosecution, so to speak. So the burden of proof is yours. I'd be very interested to know what your direct, empirical experience was.

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how do we shift the torque curve 1000 rpm to the right?

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Yes, as a principle I dont believe in chip tuning for the reasons I already covered. On the basis of that, you assume I would have ignored my own advice and gone and had my daily driver chip tuned, what an incredibly odd assumption.

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Cams I moved it 2,000 rpm to the right in my track car. Very similar curve to the stock cam profile, very slightly raised and significantly shifted to the right. I used 288 degree cams with 11mm of lift on intake and exhaust. Went to a shim under bucket conversion and removed the variable valve timing as it was a complication I didnt really think I needed since the car spends almost all its life in the 7-10,000 rpm range.

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No, I assumed your opinion was based on past experience. Chip tuning isn't the Easter bunny. It's not a matter of believing in it. It's a matter of whether you personally think it's worth the money. I've given the original poster my answer. The difference is, I've actually done it.

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It is based on experience (having put a chip in a 944 turbo previously, and had 6 different cars running standalone systems), like I already mentioned. This is just one of the reasons (my experience) why I wouldnt have bothered putting a chip in the engine. The other is just plain comment sense, the timing and furl table parameters in a chip tune are speculation. You see once someone gets experience, they then apply it to future situations, its called learning. Its really quite good stuff.

Quotes source post: 9305596

Um, wow. Just... wow. So a couple of things. Unlike your 944 turbo, we don't "put chips in" anymore. And that's just the start of what a 944 turbo doesn't have in common with a 996. Also, I think you're pretty unclear on how this code gets written. It's not speculation, at least not since OBD2. It's pretty much test-and-learn, at least for the good ones. It's true that past experience is a good basis for forming opinions, but only if that past experience is relevant. Anyway, sorry I kept this going. I thought for a minute there, a few posts back, that you had some direct experience to share. Unsubscribed.

Quotes source post: 9305644

The effect is the same, a reflashed chip is the same as reflashing through OBD2, clearly you dont have any experience in this. Now you are speculating every reflashed code is custom written for every engine configuration sight unseen. This is proof that a little knowledge is dangerous. Yup, I wouldnt have my ECU reflashed by someone without knowledge of all variables taken into account. A very relevant saying here, if the milk is sour, I'm not the kind of ***** to drink it, you are, and thats fine. Thank you for unsubscribing