lookin4luey

So I went to the local dyno to get some stock rear wheel numbers. Here's what I got on three separate pulls... #1 - 313/330 #2 - 318/337 #3 - 320/339. The only difference between any of them is that we took out the paper air filter on #3 to see what difference a "high perf." filter might make.

As far as I am aware, the only modifications include FRA (myself) and Flowmaster muffler (previous owner).

The graph showing all three pulls is attached. The dyno operator believes that my car has been tuned at some point based on the A/F numbers we saw.
From what I remember, the A/F was consistent mid-12s throughout the 4-6000 rpm range.

Have I benefited from a tune or do I have a "freak"? Either way, that is a serious head start for me.

My car: 2002 Z28, M6
Mods include: FRA, Flowmaster, 17" 275/40 Nitto 555R on Z06 Motorsports from Tomz Wheels

blue01ta

iTrader: (4)

Your actually right where you should be for a stock 02 as far as your numbers are concerned.

Magnet

iTrader: (36)

in my opinion your numbers are above average...i would say most are between 305-310 for 01 02's ......awsome numbers...let the modding begin

Fr33styL3

#1 to 2 there was a big jump!
most '01-'02 dyno around 300-310whp. With a fra, catback and tuning, you might have another 10-15. Id say your right where you should be.

lookin4luey

That (300-310) is right at what I expected to see on the readouts.

To clarify, I'm still running the stock exhaust with the exception of a FM muffler welded in. The previous owner even went as far as welding back in the stock rectangle tips. Also, I don't know whether it has definitely been tuned or not. Would you agree with the dyno operator that it is very likely already tuned?

Thanks for your thoughts.

Wicked_Hugger99

iTrader: (1)

pretty stout. BTW, where u located cuz it seemed like those were some pretty cold conditions at 45-51 deg according to the temps on ur graph.
beeeerrrrr!!!!!!!!!

Slowhawk

iTrader: (12)

That is a STD #.On a cold day like that I would expect STD to be 20-30hp over SAE which most people on this board compare.

davered00ss

iTrader: (4)

01/02 cars dyno higher than 98-00 cars. With tunning I have seen several in the 320 range stock. And Slowhawk is right, STD is different than SAE #'s.

lookin4luey

Can anyone give me the formula to convert from STD to SAE? I'm in Allentown, PA and the high temp today was somewhere below freezing. The shop we were in had cooled overnight so the indoor ambient temp was still nice and cool.

02redSS

SAE would be 310 hp 329 tq. The SAE correction factor for the weather would be 0.95. This is for RUN3

BriancWS6

iTrader: (18)

I made 321/331 with just a lid and on a rich stock tune, 12.2 a/f. There is nothing wrong with your numbers though