BEGI S4, GT2860RS, 3" Exhaust
#1
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BEGI S4, GT2860RS, 3" Exhaust
Tim tuned an '03 S4 with a 3" exhaust today. The car's set up: GT2860RS Internally gated, IC #2, 2.75" Downpipe, 3" Mid pipe (no cat), and 3" Left Exit Exhaust. Other mods are minor and of no consequence, oil catch can, powder coating etc... Owner is going the forged internal route this summer, so we tuned for 13 psi as requested.
Results: 272.46 rwhp, 235.50 ft-lbs. @ 13 psi. Correction factor: STD 1.03 as calculated by the weather station.
Best numbers done with the Xede unit on a Miata so far.
Stephanie
Results: 272.46 rwhp, 235.50 ft-lbs. @ 13 psi. Correction factor: STD 1.03 as calculated by the weather station.
Best numbers done with the Xede unit on a Miata so far.
Stephanie
#3
94 < 2000 lbs w/99 motor @ ~14psi , 271hp-235ft/lbs, GT2560R with AbsurdFlow© tubular manifold/intercooler piping/3" stainless turbo-back exhaust
No bashing, but serious questions. Is it engine managment? Manifold design? Am I missing something?
Nice numbers, that must be insane to drive.
#14
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damn it! beat me by 1 HP!!! but I weigh ~400 lbs less. Anyway, I was thinking my torque is kinda low at 235 for 271hp but I see you made the same. Should the torque be a lil closer to the HP max or is that typical?
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Tim was supposed to copy files for me. I will check and see if he did.
Corky says that is typical. Due to the pressure losses and/or drag in the system (If i am understanding correctly!). In order to get more torque we would need to increase flow (bigger TB, less drag thru IC, less drag thru filter, etc.) and increase the boost levels.
Stephanie
p.s. 1 less psi too.
Should the torque be a lil closer to the HP max or is that typical?
Stephanie
p.s. 1 less psi too.
#18
Corky says that is typical. Due to the pressure losses and/or drag in the system (If i am understanding correctly!). In order to get more torque we would need to increase flow (bigger TB, less drag thru IC, less drag thru filter, etc.) and increase the boost levels.
Stephanie
p.s. 1 less psi too.
#19
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Me too. I basically have the same setup as Chris already in my 96 except I got a used S5 with a T3 turbo and 3" Enthuza exhaust (no cat ), AEM and 550 injectors so I've been waiting to read your impressions when you get your kit.
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Looks good Steph/Tim/Begi! With an Xede too, very nice. I too would like to see Paul's 2560 plot overlaid on this 2860RS plot to see how much later, if any the 2860rs spools. You guys are kinda close to sea level, right?
I think you guys should drive up to delaware next weekend for the dyno day too.
I think you guys should drive up to delaware next weekend for the dyno day too.
Last edited by TurboTim; 03-27-2008 at 09:31 AM. Reason: oops, put 2560RS instead of 2860RS, duh