rb25 finally getting tuned!!!

[bmadd2402]

well, it has been a long time coming, but The rb is at Carma perf eng. in Nashville being tuned right now. Just talked to Brad, who is working on it and it is making 260 at the wheels at 9#. he is troubleshooting a little quirk before bumping up the boost a bit. sometimes from run to run the power is coming in a little early (10-15 lb-ft difference) and when that happens, the car will sputter at around 5500. when that doesn't happen it pulls great all the way up and is making 260. weird huh?

But 260 at 9# boos is pretty good, and get it up to 12, we should be looking at around 300.

[DrifterProdigy85]

Very nice. I feel your pain with the hesitation. When they figure out what it is let us all know.

[eh?]

Mods and type of dyno?

[bmadd2402]

rb25det with stock turbo, aem plug and play running map/iat, aem boost solenoid and uego wideband, sea level in the high 70's, low 80's, fmic, turbo back exhaust, mild port and polish, valve job, gasket matched, no a/c, light flywheel and clutch, 1-piece Dshaft, 2way lsd, fn01-c's with 275/40r17 rt615s rear, 255's up front, gutted, all ES bushings or spherical heim joints 5lug swap, willwood superlite 4pot front and 13in rotors front, fastbrakes 12 in rear rotors, hawk black pads. the head was decked , so compression is about 5psi higher per cylinder than before I rebuilt it either due to the HG or less material on the head, all of this on a Dyno Dynamics chassis dyno.

Reading the net, that is good on a dyno dynamics. I am really excited! you figure guys are getting 220ish stock to the wheels right?

[bmadd2402]

just got a msg from the tuner, they tuned out the stutter, and got me 280 at 11# of boost. I expect it is a little conservative, he said he stopped cause of injector duty cycle. accounting for drivetrain loss, that is about 310-320! I am pretty happy. let me know what you guys think!

[DrifterProdigy85]

Thats pretty good. Post up the dyno. Sounds like i need me a standalone or chipped Z32 ecu.

[eh?]

just got a msg from the tuner, they tuned out the stutter, and got me 280 at 11# of boost. I expect it is a little conservative, he said he stopped cause of injector duty cycle. accounting for drivetrain loss, that is about 310-320! I am pretty happy. let me know what you guys think!

Did he log all the runs? Post up your timing map, I'm curious to see it. I have an aem too and I'll post up my map.

[bmadd2402]

yeah, multiple runs. I will get all the sheets tomorrow when I pick up the car. what is your car running eh?

[eh?]

yeah, multiple runs. I will get all the sheets tomorrow when I pick up the car. what is your car running eh?

As far as what? mods?

[bmadd2402]

yeah, mods and hp numbers.

[eh?]

Turbonetics 62-1GReedy In manifold6boost ex manifoldAem ems

352whp @10psi/420whp@ 14.8psi on a dynojet. Can't really compare dyno dynamics readings and dyno jets.