: Stock dyno numbers in...



04CTSVforMe
06-11-05, 03:20 PM
Well, the first dyno was definitely not a letdown. Here is the SAE corrected low-down, 1250 miles on the clock:

Run 1 328.9 rwhp 319.6 rwtq
Run 2 328.9 rwhp 321.9 rwtq
Run 3 327.7 rwhp 321.5 rwtq

Air-to-fuel ratio dove to 12-1 around 2900rpm and fell off to 11.5-1 and lower around 4500rpm.

Very smooth, very consistent, and very impressive to the people who were wondering why I had a "CTS" at a dyno day! lol

I'll try to scan the sheet at work on Monday. Fun open house/dyno day at Lonestar Performance!

WillyV
06-11-05, 03:44 PM
18% driveline loss? I thought manual transmissions were supposed to be closer to 15%?

GNSCOTT
06-11-05, 04:15 PM
Depends on the air temps, elevation, relative humidity, the type of dyno you are using, etc. Dynos should only be used as a baseline when modding a car to determine if you are going in the right direction, and of course you must use the same Dyno. A large garage with climate control is best because it will basically have the same temp and humidity year round.

thebigjimsho
06-11-05, 07:51 PM
Yeah, that's only about 5+5 down on my numbers. I was at a couple hundred feet above sea level on a 55 degree day.