2002 Z28 A4 (2.73:1) 15000mi, export version (288HP rated with the V6 one on the left exhaust), Gas 95 octan mods: CAI, SLP PP air lid, SLP 85mm MAF, bellow, 1.85:1 SLP rocker arm package (spring and ti retainers), SLP Y-pipe and SLP PP dual-dual carback. Everything installed by LS1tech. The car is pulling really hard and everything is fine. Oil changed on the same day.
The dyno is a Bosch: The mesure was done on "2" (not D... ), speed 103mph, temp 29°C (85°F) and press 964mbar (725mmHg)... corrected the car pulled only 309rwHP wich appeared to be very low with so much mods...with a 12% driveloss 346HP. I was waiting something like 335rwHP. Does anybody has an idea of what's wrong?
And a last thing I don't understand: the curve went up to the limiter (6200rpm) and then cut. So my car has 309rwHP@6200rpm
Posted by White Lightning (Member # 363) on :
In the United Stated the most popular dyno is a Dynojet dyno. The numbers from your dyno can not be compared to the ones you see posted here. The two dyno calculate rwhp differently.
Can you post a picture of the graph ?
Rob
Posted by LSV1970 (Member # 2056) on :
No but you got mail. BTW a 2000 Vette A4 with dual K&N conical, 80mm TB, 1.85:1 SLP rocker arms, Bassani X-pipe and B&B exhaust put 386rwHP on "D" on the same dyno 3 months ago. Posted by killabee (Member # 860) on :
Considering the CAI won't dyno, Bellow and MAF may not yield anything, Y-pipe is questionable too, I don't think the numbers are that bad. remember you can't just add up all the numbers that the ads say and figure to have that much more HP.
Your right though the peak at 6200 is odd
Posted by killabee (Member # 860) on :
Also A4's have more parasitic loss than M6. 12% is the T56 loss, A4 is more in the 15-18% range.
Posted by JeffY (Member # 120) on :
quote:Originally posted by killabee: Also A4's have more parasitic loss than M6. 12% is the T56 loss, A4 is more in the 15-18% range.
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