Mine is a 2002 A4, with the 3.23 gears, with the following mods:
SLP Lid, cutout, ported and polished MAF, and a passive FRA.

314rwhp, and 324 lb. ft of torque

How is that compared to other similar cars like mine?

 

Thats good. I would guess its a little above par. Most LS1s dyno 295-310rwhp stock.

 

Even the 01-02s?

I think thats just about right, maybe a little low. Actually, I think that sounds right. With a catback/cutout he'll see 320.

 

Your right that is a tad low, I got the torque and hp numbers mixed up. Not to worry still better then what 99.934325435% get stock.

 

Hey just out of curiosity, what's the flywheel HP/torque. I dunno how to convert from rwhp to fwhp. All i know is that autos drivetrain loss is 20%. Thanks

 

I think its 18%. If it is 18% you would be looking at close to 370fwhp.

 

Better than mine (SLP LID and K&N only mods):
309.6rwhp/328.7rwtq
Stock dyno in Sig.

 

I think it is a tad on the lower side for a 01+ car, but still a good starting point.

Good job!

TS

 

I think those numbers are very good, my 2001 Z28 with lid, catback, and 3.73's was 291RWHP, 355RWTQ (both at 5400RPM).

SteveC

 

Identical to my dyno. I have M6 WS6 with lid.


Chuck

2002 WS6

 

Those numbers are great IMO! Remember, A4's will show lower RWHP than M6 cars, so that's pretty good!

The equation to figure out FWHP (fly-wheel horsepower) is this:

FWHP = RWHP / (1 - percentage loss)
(remember, percentage is written as a decimal)

Example:

314 RWHP / (1 - .18) = 382.9 FWHP!!!

Now even if you go conservative and say that the A4 only used ~10% power, you still get:

314 RWHP / (1 - .10) = 348.8 FWHP! (which is exactly what the LS1 is rated at...........well, in the 'Vette). In reality though, we know that the drivetrain loss is higher than 10%, so your engine is making more than 350 HP........probably closer to 370+ FWHP.

 

01 ws6 cold air lid
324hp 344tq

 

But he has a cutout, so I don't think it'll improve with a cat back.

It sounds about right. I did 317, then my last was 322. i dynoed before I did the FRA and ported the Maf though. i think it feels stronger now. I am waiting for a set of Lt's and I'll go back!

Dyno video

Ed

 

I have an M6 with just cat back and just dynoed 319 rwhp and 330 lbft of tq.
Pretty good numbers if you ask me.
I have seen a few autos dyno @ or below 300rwhp.
May be the Wednesday car, Friday car deal

 

It looks about 5 RWHP less then what I would have expected but overall not bad. You got a fast car and that's all that really matters. Heck our aftermarket torque converters tend to eat some RWHP but yet make our cars much faster.