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YOUR RESEARCHIN THE SHOP | Porsche 996 Carrera X-51 w/ Fabspeed Performance Package
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Adjust from 320...assuming
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Performed · outcome unconfirmed
Assuming a non-X51 car makes 260hp stock (as adjusted from 320...assuming that adjustment is correct), that suggests mine is making about 282hp now.
IN THE SHOP | Porsche 996 Carrera X-51 w/ Fabspeed Performance Package
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Leading evidence: 'Adjust from 320...assuming' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Adjust from 320...assuming' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion
Look at all the changes Porsche did for the total X51 package.
IN THE SHOP | Porsche 996 Carrera X-51 w/ Fabspeed Performance Package
Run 996
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Suggestion · Original poster
After the install was complete, the car was dyno tested and put out 315 horsepower at the wheels, which makes for a great sounding and running 996!
IN THE SHOP | Porsche 996 Carrera X-51 w/ Fabspeed Performance Package
Run pre dyno, even at
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Suggestion · Original poster
Wish I had more time so that I could have run a pre dyno, even at that I had to do the post dyno on a different day when the customer came back for the intake.
IN THE SHOP | Porsche 996 Carrera X-51 w/ Fabspeed Performance Package
Test engine at the flywheel
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Suggestion
When you have an engine dyno and a chassis dyno one room apart from each other in the lab its really easy to test the engine at the flywheel, then test the engine in the car only a few hours later.
IN THE SHOP | Porsche 996 Carrera X-51 w/ Fabspeed Performance Package
Run pre dyno, even at
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Suggestion · Original poster
Wish I had more time so that I could have run a pre dyno, even at that I had to do the post dyno on a different day when the customer came back for the intake.
IN THE SHOP | Porsche 996 Carrera X-51 w/ Fabspeed Performance Package
Test engine at the flywheel
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Suggestion
When you have an engine dyno and a chassis dyno one room apart from each other in the lab its really easy to test the engine at the flywheel, then test the engine in the car only a few hours later.
IN THE SHOP | Porsche 996 Carrera X-51 w/ Fabspeed Performance Package
Test engine in the car only a few hours later
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Suggestion
When you have an engine dyno and a chassis dyno one room apart from each other in the lab its really easy to test the engine at the flywheel, then test the engine in the car only a few hours later.
IN THE SHOP | Porsche 996 Carrera X-51 w/ Fabspeed Performance Package
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34 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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Generation: 20261027T013556Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
This wonderful 996 Carrera X-51 came in to the shop today to complete the installation of a full Fabspeed Performance Package. This car is now equipped with the following Fabspeed performance products:
• Fabspeed Motorsport Maxflo Performance Exhaust w/ Deluxe Quad-Style Tips
• Fabspeed Motorsport Sport Headers
• Fabspeed Motorsport Sportcat X-Pipe w/ 200-cell HJS Sport Catalytic Converters
• Fabspeed Motorsport Carbon Fiber Competition Intake System
• EVOMSit ECU Tune
After the install was complete, the car was dyno tested and put out 315 horsepower at the wheels, which makes for a great sounding and running 996!
I wanna see a factory 40AE put down 262whp on a dyno.
262.5 * 1.20 = 315HP, just to be clear that claiming 20% gains over factory setup means the factory setup makes 262 horsepower, which is maybe believable for WHP of a stock 3.4L, but I don't believe it for a stock x51.
i have run my 40th AE against more than one 3.4 and or non x51 3.6 and in every instance and along till let up it was not even close. I have been meaning to add 200 cel cats to mine so, I would love to see a before and compare to that after especially on a car with only 28k miles on it should pull very sting stock.
From personal experience with issues installing these systems and having to service them after the sale make sure you do your research before buying FabSpeed products. There product and their after-sales leave alot to be desired.
Mark
I did not run a pre-dyno due to time constraints with the customer who came from NY for the install. I was not posting the graph as a basis for comparison, I just thought that it was a nice piece to see a well running 996. The graph posted above by Halik was on an engine with 1,500 miles and the graph was STD smoothed FWIW.
Wish I had more time so that I could have run a pre dyno, even at that I had to do the post dyno on a different day when the customer came back for the intake.
Evan
I guess when you claim that it is a 20 %increase over the X51, people will ask about the baseline. I think that is a fair question. 300 hp just seems low for the X51. My bone stock 3.4 dyno was 287 on a rated 296. Granted, only one data point, but still seems low. The fabspeed setup sure looks sweet though!
When you have an engine dyno and a chassis dyno one room apart from each other in the lab its really easy to test the engine at the flywheel, then test the engine in the car only a few hours later. Doing this reveals the true drivetrain losses that these cars have. That removes all the guesswork and argument.
Care to share your general observations between flywheel hp and wheel hp drivetrain losses for both 2wd and 4wd for the 996 platform? People always assume 15-25% as a general rule of thumb but I know it can vary between car make/models.
I'm only asking if you would share your numbers on what you record on the engine dyno and the roller dyno. Numbers are numbers. Not too much controversy unless you're worried about people questioning testing setup, equipment, dyno settings, etc. "completely defy"? Are we talking Ancient Aliens $hit here?
My non-X51 2004 C4S has a
- Sharkwerks Tune
- Fabspeed Exhaust
- EvoMS headers and
- EvoMS intake
and, the set-up supposedly puts out an extra 22hp/18tq over stock. I don't have the dyno sheet for it but it yields similar power improvements to the X-51 power kit.
Assuming a non-X51 car makes 260hp stock (as adjusted from 320...assuming that adjustment is correct), that suggests mine is making about 282hp now. My car also doesn't have the benefit of the sport cats in the package described but the dyno suggests that the upgrade nets about a 31hp advantage over the benefits of the X-51. I'm not in a position to know one way or another. Is it fair to ask how much additional hp high flow cats typically yield over stock?
-Eric
The message I always get from reading about performance gain products with the 996 engine is that the factory has already squeezed out all that is available. From that point on, a single HP will cost a few hundred on up to $800 each. Can a driver really feel a 10HP gain on a 300HP+ engine?
Look at all the changes Porsche did for the total X51 package. Heads, pistons, exhaust, intake, remapping, all that for a gain of 20HP. A huge expense indicating its not easy or cheap.
Paul
I love that guy! It's even more funny to see him out in the field as he goes from a suit to some biker attire. lol
My theory is Jake was given the knowledge and technology he posseses from a higher being above(or below). Mankind isn't ready and can't handle the truth yet.
[Image-only post; no author-written text. Original image references:]
http://speakfearlessly.net/wp-content/uploads/2013/07/you-cant-handle-the-truth-meme-generator-you-want-the-truth-you-can-t-handle-the-truth-9789dd.jpg
All kidding aside, just buy JR's book and you get it all! Rumor is the book comes with a free sample of JG!
Paul is exactly right. Just think about the Ford or GM engine you could build for what it takes to get a few more HP out of the M96 platform. Its really pathetic.
Honestly, if I were to develop the need for another 20HP it would make sense to sell the 40th for $30-35k and take the HP money, say $15k and buy a GT3
Paul
KK, we're all anxiously awaiting for it but at this rate, it might not be for another 4 generations of the 911 platform where he'll be fixing, sorry, I meant "reconstructing" hybrid drive systems.
