VW Corrado VR6 Turbo

[JRaptor2000]

Got the car up and running about 2 weeks ago, here are the specs on the motor setup, followed by the board setup.

Stock 2.8L Bore
9:1 Headspacer
GT3255E Turbo (.63 a/r hotside)
Tial 38mm ext wg
4" downpipe to 3" exhaust
550cc (50 lb.) high impedence injectors
Adjustable FPR set to 3.5 bar
Bosch 044 300lph fuel pump

We built the board and have done all tuning, so far have a fairly decent 5psi tune, can't wait to get it up to 20.

MS1 V3
MSnS-E 029y4

Board mods/hardware:

VRIN - TSEL
TSEL - VROUT INV
D14 with pullup to IGN (no VB)
Both VR pots fully CCW
Boost Control Mod (haven't used it yet though)

Tach circuit works with a 4.7K pullup (if this confuses anyone, I'd be happy to help you figure it out)

We made an adapter harness to plug into the factory motronic plug so the engine bay wiring looks stock, if you pop the hood, it looks like you went the "chipped" route.

Thanks to Paul aka need_a_vr6, for all of his help whenever I had a question about building the board. Without him, I probably wouldn't have even attempted trying to use Megasquirt.

MSQ's and Pics will come soon.

[redeye]

nice to see more squirted vr6ts hows the tuning going? im looking forward to pics and msq

[dirtytorque]

hmm..very interesting.keep us posted.
Any pics yet?

[skyrocckt]

well this weekend at show n go... running on 10psi i think the car ran a 13.10 at 110 ... and sounded bad bum doing it.

[dirtytorque]

well this weekend at show n go... running on 10psi i think the car ran a 13.10 at 110 ... and sounded bad bum doing it.

cool,she's hooking up then.

[JRaptor2000]

hey guys....need some help here.

after having time to work on the car more...it DEFINATELY makes power at 16psi, 20psi is tractionless completely. It pulls like a jet to 130 in nothing. Pulled some cars on a ~400whp 300zx too. Haven't been revving past 6300 yet either until we can get some dyno time.

we're still having issues getting the car to start well when cold...have to start it a couple times and keep it revved up for a few minutes. we aren't using an ISV.

The Idle AFR jumps a lot if it's any leaner than 13.5. The AFR keeps jumping up higher and higher until it stalls. Tuned at ~13.3-13.5 we get a steady 850 idle.

We switched over to Hi-Res 10g from 029y4? after having an issue where the AFR is reading VERY rich. (Off the gauge rich!) It would happen completely random and the car run like absolute poo while driving it, the idle would hunt, and sometimes the car would even flood itself out at idle. Not Good!

HR10G seemed to fix the problem at first, but it's started happening again. We are out of answers, we've tried reloading the firmware as well.

I can get a MSQ and logs up as well. I used a lot of need_a_vr6 (Paul)'s MSQ for VR6 dizzy settings along with another MSQ I had for a coilpack VRT on 10 and 20psi, just to compare fuel and spark maps to get a base.

This is actually our first time tuning a MS system and the car is running great.(when it's not having the "rich" problem) The AFR's are coming close to being perfectly consecutive in boost and even on the curve getting into boost.

[Miozolol]

Nice to hear about this setup.

I'm actually running a Kinetic Stage 1 kit running 10:1 with 0,4B of boost with C2 Software.

Well, i'm having issues with the Idle staying high on deceleration and takes 30 secs. to estabilized...


I'm thinking of getting this MS with the adaptor harness.

Please post pics =)

P.D.: Yo got a PM.

[JRaptor2000]

Disassembled the car at the beginning of the summer for some bigger plans and we're getting closer to finishing. Never had a single issue once we got it tuned right and it never blew up.

Some of the new specs...

Eurospec JE Forged 9:1 pistons (2.9L)
Eurospec Forged Rods
41/36 BVH
268 Cams
GT4094R with customer twin scroll manifold
Full 3" exhaust
Custom Short Runner Intake
Aeromotive 1000 fuel pump and regulator
16 gal. fuel cell
034 Fuel Rail
Bosch T1 1000cc Injectors
AVC-R Boost Control
02M R32 transmission swap
Spec twin disc clutch

and MS1 V3

[JRaptor2000]

Here's a vid of the car, only running at 7psi right now but it's still rippin!

http://www.youtube.com/watch?v=ETLQi0vOz60

[powernut]

any pics/msq ..