79Redvette

Put my 02 , A4 with 2,400 miles on the dyno last weekend. Got 290 HP and 311 TQ. See sig for mods. Just seems low to me. What do you think?

Pigface1

Automatics lose a little more power by the time it gets to the wheels. . My 01 6 speed dyno'd stock 305/322 for what it's worth.

golfman

What gears do you have know and was that with the PLII installed.

79Redvette

I have the 315's. And everthing was installed when i did the PL2.

90 droptop

I 99 put down 301 h.p. and 308 t.q. with the Blackwind, ls-6 and Corsa. No PLII installed.

Pigface1

Wait, those were your numbers with your mods?? If so, then they are way low!

vettethret

Auto's do dyno lower. My '02 with 4800mi dyno'd at 315.1 hp and 331.9 tq. From what I hear auto are suppose to have 5% more parasitic loss than 6 speeds. :cheers:

Richin Chicago

What brand of Dyno was it?

RDVT4ME

My 02 with about 3000 miles on it dynoed at 292 HP and 319 TQ. Totally stock. A4 with 315 gears.

F8LPONY

What are your air/fuel ratios? Those #'s seem low. Are those corected SAE #'s?

Just curious cuz a lot fo the F-bodies around here dyno between 290-310rwhp. I dyno'd mine with just a lid and free mods and got 319rwhp.

I wonder if it has anything to do with having those big 18's in the rear.

Anth

I don't think they seem to low. I just dynoed my 97 A4 (blackwing,TPIS,Stinger,LS1 EDIT tuning) on a "mustang dyno" and it only laid 302 HP and 329 ft TQ at the rears. It has a 2:73 rear in it :cry.

omrossi

My brand new 2002 A4 (Vortex Rammer is my only Mod) dyno'ed at 300 RWHP/312 RWTQ. This is about what I was expecting, because you "lose" 15% from the flywheel to the rear wheels.

But, on all 3 runs, my print-out showed a 50-60 HP drop-off between 5,800 and 6,200 RPM's. My Chevy dealership checked with Detroit to see if there was a PCM update, but they didn't have anything.

I am going to digitize and post my dyno reports, but has anyone else seen anything like this?

Mike :cheers:

YLWFVR75

For those of you who posted your Dyno #'s, what kind of dyno were you on? Dynojet or Mustang? i've been told that dynojet is going to give bigger Numbers......

F8LPONY

DynoJet here.

dbvettez06

My understanding was the Mustang dyno gave higher #s than the Dynojet :confused:

Anth

I could be very wrong, but I thought that dyno jet showed more HP because the mustang dyno replicated the actual "road load".

YLWFVR75

RyanC7

Mustang dynos are way off........Dynojet is the standard

benton0311

From what I understand, it is generally accepted that there is approximately a 20% drivetrain loss for automatics and 15% loss for manuals, and a little less for a powertrain with a transverse layout (most FWD or mid-engine like MR2/NSX - no loss at differential). With a 20% loss, 290HP = 362HP.
And I have to agree, DynoJet is the standard.

JerryL

Your numbers are realistic, I'm skeptical of many of the dyno numbers posted on this and other forums. My 01 Z06 with a Vortex and TPIS long tube headers dynoed at 337 SAE on one dyno and 345 on another a week later.