34 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHRear Wheel HP on 996 w/ 3.6
Leading reported evidence
Disconnect front diff
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Do you have an awd dyno or are you talking the time to disconnect the front diff on the awd models that you get in?
Leading evidence: 'Disconnect front diff' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Disconnect front diff' (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.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
my x51 engine dyno'd at 315 rwhp, stock intake, with cats, sans mufflers running 100 oct gas.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
These are all fully muffled, 100% street car engines running on pump gas with great manners, 700 RPM idle.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
The only engine option on the non turbo 996 was the x51 engine option that bumped HP to 345 by using different heads/cams.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Thats the data we use for product and engine combination development.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
34 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261027T075545Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
What is the Rear Wheel HP (and torque for the matter) for the standard C2 with the 3.6. And, what is it for the C2S?
I am scouring the internet now and do not see an answer.
Thanks in advance,
JKC
There is no C2S in the 996 series. And the C4S has the exact same engine as the C2. The 02 and later engines (3.6L) were rated at 320hp and 273 Ft of torque. Depending on drivetrain loss you should see roughly 250hp and 220 ft of torque on a healthly engine.
I never knew there was never a C2S... Interesting. However, my owner's manual does cite an S specification engine with something like 350 in BHP. So, are you certain the C4S uses the same engine?
Thanks for the feedback.
JKC
Absolutely certain. The only engine option on the non turbo 996 was the x51 engine option that bumped HP to 345 by using different heads/cams. It was a ridcidulously expensive factory option on the normal 996 ($16K) and was standard on the 2004 40th anniversary 996.
Not sure what your looking for. Dont expect much power out of the NA M96. Dont bother modding it, because it will surely fail. If more power is needed just get a TT and be done with it. Lots of stock power options (depending on series) from 415HP to 600HP+ and it wont blow up.
Soverystout, Thanks.
KrazyK, I was just curious what the drivetrain loss is in the 996. I'm a little surprised it is that high... That's like a 30% loss or something. But it is what it is.
JKC
On my 2001 Carrera with FVD Headers and Muffler By Pass Pipes, stock intake, stock cats, and new 3.4L motor 4 years ago, I have a 3 year old dyno at 276 RWHP. So maybe the 3.6 would be closer to 300?
My Cayman S w/ 3.4L variocam plus dynoed 246 ft/lb @ 4577 & 283 hp @ 6228 on dynapak (bolted to hubs) so I would think 3.6L could be better with exhaust/ipd/intake etc.
Results from a dyno day with friends on a AWD SuperFlow Dyno
I'd image a C2 would have less drive train loss and have better results. Sorry I don't have the SAE numbers for all of them but mine. CEng is crank
My 3.6l C4S
CEngPw 298.7
SAEPwerMax 247.7
CEngTq 258
SAETq 219
A stock 996 3.4
CEngPw 288
SAEPwerMax 232
CEngTq 246
Another 3.6l C4S (with same mods but different manufacturers and no plenum)
CEngPw 300
SAEPwerMax 250
CEngTq 253
997.1
CEngPw 318
SAEPwerMax 263
CEngTq 270
997.1 S
CEngPw 325
997.2 C4S
CEngPw - 360.1
CEngTq - 307.3
996 TT with UTW chip
CEngPw 457
SAEPwerMax 390
CEngTq 529
997 TT chipped and mods
CEngPw 505
SAEPwerMax 442
CEngTq 572
I have all the data that you could imagine from our chassis dyno. I'll share a ton of graphs with you later.
I would dyno yours, but I am afraid to! :-)
Jake, I understand why you have to dyno all your builds but it really doesnt matter for most of us about our own cars. Their not high horsepower (excluding TT, GT's) by any stretch of the imagination. I would be worried mine would pick the dyno session as the perfect opportunity to blow its guts out and soak your shops dyno in oil, coolant, and shrapnel.
Jim's car is a different case. We are treating it like a Faberge Egg here while we are trying to squeeze more life from it after 204K miles.
Every car that we see, stock or otherwise sees our chassis dyno here. In fact customers have to request that we do not dyno the cars, which only happens a couple of times a year. I do this to gather information for our research and its how we gain so much trend data.
We don't see that many C4 cars, when we do we pull the shaft. We also have two in house engine dynes, one set up for the M96. Thats the data we use for product and engine combination development.
I never post dyno graphs, but we have thousands.
thousands of graphs but very few awd. sorta leads to seem there are less problems with awd at least in statistics. not that I am interested in graphs but the dyno avg max for engine models would be interesting even though temps can really effect the results. The awd dyno we were on that day I could honestly say was not kind to awd cars while rear wheel drive models had much better results. I am fairly certain disconnecting the front would have produced better results, drive train loss and it's crank calulations didn't match up.
I am probably crazy for doing this, but I decided to post some of
last year's
bigger combo outputs. Don't make me regret it by being so damn critical.
These are all fully muffled, 100% street car engines running on pump gas with great manners, 700 RPM idle. I threw in a "stock" control that we just pulled from a bone stock 3.6 after an IMS Solution install.
Found this awesome old thread.
Does anyone know what the dip in torque/power is at 6000 rpm for the stock engine?
Is it just a measurement error? Some of the other engines Raby has it as well but less. Does it have to do with variocam?
