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Power @ Wheels for a 99 C2

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YOUR RESEARCHPower @ Wheels for a 99 C2

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Run saw as high as 260 or 262 0.o

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Suggestion · Original poster

i said 255 which is what it was exactly, but it kept gettin higher and higher but eventually stabilized at the above number..but one run saw as high as 260 or 262 0.o

Power @ Wheels for a 99 C2
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Leading evidence: 'Run saw as high as 260 or 262 0.o' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run saw as high as 260 or 262 0.o' (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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Compare 2 other evidence results

Test temperature also has a lot

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Suggestion

test temperature also has a lot to do with it...

Power @ Wheels for a 99 C2

Use dyno hp as a reference

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Suggestion

Different dyno models are all different, IMO its better to use the dyno hp as a reference for tuning, than for absolute numbers.

Power @ Wheels for a 99 C2
Frequently discussed actions (3)

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Run saw as high as 260 or 262 0.o

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Suggestion · Original poster

i said 255 which is what it was exactly, but it kept gettin higher and higher but eventually stabilized at the above number..but one run saw as high as 260 or 262 0.o

Power @ Wheels for a 99 C2

Test temperature also has a lot

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Suggestion

test temperature also has a lot to do with it...

Power @ Wheels for a 99 C2

Use dyno hp as a reference

No successful repair reported for this finding.

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Reported fixes
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Read evidence and context
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Suggestion

Different dyno models are all different, IMO its better to use the dyno hp as a reference for tuning, than for absolute numbers.

Power @ Wheels for a 99 C2
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18 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

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POST 4Original post

power at wheels will be affected by rim size and whether you have a 6-speed or triptronic... i.e. 17" rims... more WHP than the heavier 18" rims... test temperature also has a lot to do with it...

POST 5Original post

do not think it is that low. around 255 hp 45 hp loss in transmition and other friction factors? definetelly not arounf 230 as stated. 70 hp loss i.e. around 23 % loss would apply on 4X4 cars. differences should be shown on different dynos as well, assuming that weather conditions are the same, if it can be achieved which is impossible. ussually testers dyno the car 3 times, and take the average.

POST 6 / ORIGINAL POSTEROriginal post

thanks for the info guys... when i heard 233hp i was getting worried because my car will be on sport compact revolution dyno showoff and if it lays out only 233 i'll be the laughing stock of tv. lol

POST 7Original post

I talked to a guy here in Toronto that dyno's these cars... specifically the 99's he said were around 255-260... he sayd he's seen one as high as 280WHP (stock)... the 99's where the first 996's out and apparently the explanation is that some where special or the engines porsche made had inconsistent power output ... personally I believe the latter

POST 8 / ORIGINAL POSTEROriginal post

^ yeah that would b an explanation..probably also if its tip or 6spd, how the car was broken in, what condition the drivetrain components r in etc etc..

POST 10Original post

Different dyno models are all different, IMO its better to use the dyno hp as a reference for tuning, than for absolute numbers. Besides, what matters is what happens on the road at speed. Those TV shows always seem to have dynos that read high, which makes for a better show.

POST 11Original post

I am the friend that Darren talked about. My car was dyno'ed at 236 - 240 at the wheels (different runs). To the best of my memory the guy who did the dyno runs put in 3,400 pounds as weight (I don't know what that means as to the horse power output). The dyno machine might be called Mustang something. It is a 2000 coupe with 6 speed. Wheel sizes were 225 / 17 and 255 / 17. Kam

POST 12 / ORIGINAL POSTEROriginal post

ok results are in. this was done on a Dynojet inground dyno, in 4th gear. Results: 257.64HP and 219.34TQ the car is on 18" wheels..so that probably took the numbers down a bit.. here is the graph...the red line is what you wanna look at..the rest is all bs.

POST 13Original post

Can I ask a question? Why does the owners manual (98 996 6spd) state power output at 221kw or 297hp when you guys a getting these figures?

POST 14Original post

Simple, Porsche is quoting the figure "at the crankshaft" and these dyno runs are measured "at the wheels". See the difference?

POST 15Original post

Dead-eye - thanks for posting. I didn't realize the torque curve was so flat -- guess variocam works! What is the name of the show you will be on? I used to watch Sports *Car* Revolution -- is this a new series Sports *Compact* Revolution. If its the same show, did you come in higher than your estimate to Jaimee?

POST 16 / ORIGINAL POSTEROriginal post

^ its Sport compact revolution...i htink..same **** i think. i said 255 which is what it was exactly, but it kept gettin higher and higher but eventually stabilized at the above number..but one run saw as high as 260 or 262 0.o

POST 18Original post

You got low dyno numbers because it was a Mustang dyno ... they simulate the wind resistance and aero load on the car, so they are always much lower than Dynojets and other brands of dynos. If you went to a dynojet place, I'm sure you'd get in the 255s like others.

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