1993 VR4 Worklog GT368+E85

[Monster Stealth]

The purpose of this thread is to help me organize my thoughts and keep record of what has been done.

Current Setup

Engine Modifications
Wiseco 8.3:1 forged pistons, 3SX Stg III heads, refreshed bottom end, 120k w/ kevlar timing belt, GT-Pro GT368-SX turbos, SS oil feed/returns, CXRacing FMIC, CXRacing pre-turbo intake pipes, EVO 8/9 MAF, EVO X BOV, 4.5” AFE intake, GM BCS, EVO X MAP sensor, CXRacing 3” downpipe modified w/ flex section/V-bands, custom 3” single shot exhaust, Aeromotive eliminator fuel pump, Aeromotive pre and post SS fuel filters, ghetto sump w/ OE fuel tank, 10AN to dual 6AN feed fuel line, GT-Pro fuel rains, Fuelab FPR, 6AN return fuel line, 845cc Delphi fuel injectors, solid Maximal F+R motor mounts

Engine Mangement
98/99 ECU conversion w/ Chrome v1.1

Drivetrain
RPS MAXX clutch, OE remanufactured flywheel, Maximal transfer case brace, ACPT carbon fiber driveshaft, Redline fluids

Suspension
Megan Racing coilovers, Maximal adjustable rear control arms

Wheels, Tires & Brakes
Raze R74 wheels 18x8.5 et +25mm (F)/18x9.5 et +35mm(R), Kuhmo Ecsta Supra 712 tires 245/40R18 (F)/275/35R18(R), OE rotors/pads, speed bleeders (F/R)

Exterior
Modified 1st gen front bumper for FMIC, fiberglass front fenders w/ carbon fiber overlay, horrendous OE paint

Interior
Momo hub adapter, generic quick release, generic 320mm racing steering wheel, Corbreau A4 seats, Wedge Engineering seat brackets, AMS weighted OE style shift knob, Optima yellow top 51R mounted in trunk

To do

1. Touchup o2 dumps, rear manifolds w/ VHT Flameproof
2. Install TD05 manifolds, 16G's, and o2 dumps.
3. Modify stock turbo oil returns
4. Wire dual 30A relays for the radiator fans.
5. Install new aluminum radiator, Plumb 12AN hoses
6. Create bracket for FMOC, Plumb/Install FMOC
7. Modify intake/intercooler piping
8. Mount new radiator overflow



Contemplating

1. Swapping Aeromotive Eliminator for Walbro 400 (my ears will thank me)
2. Upgrading all fuel lines to PTFE lined (Wife is hating the gas fumes in the garage)

[Monster Stealth]

Currently the car is on jacks stands. The front turbo seal let loose last week and I pulled both turbos last night to have them rebuilt at MTC. While it is down I am planning on cleaning up the engine bay some, fixing some small oil leaks, and modify some of the CXRacing intercooler piping to perfect its fit.

[Monster Stealth]

Picture of the front turbo compressor wheel damage.

[Monster Stealth]

Sent the turbos out to MTC today. I am hoping for just a standard rebuild on both of them and 1 new compressor wheel for the front. I also decided I will pull the ABS pump/lines this weekend along with the radiator, and order STM's kit.

[fullracegt]

what size compressor wheel did the use? 13g seems bigger than that but im not a turbo expert

[Monster Stealth]

what size compressor wheel did the use? 13g seems bigger than that but im not a turbo expert

A Garrett T3 60 trim according to stealth316. They were going to verify the measurements at MTC.

[keo92stealth]

Should be fun when finished. Pretty beefed up fuel setup. What's that fuel pump rated for?

[Monster Stealth]

Should be fun when finished. Pretty beefed up fuel setup. What's that fuel pump rated for?

It is good for 1000cc injectors up to ~30psi. It has worked fantastic so far, but it is LOUD. I am contemplating going to a new Walbro 450 internal and PTFE coated lines.

[TurboSinceBirth]

I had these turbos up to 17 psi on pump/E85 before getting knock but that was because some retard put a parts store radiator in the car which sucked and ran 20-40 degrees warmer so I had to run richer. The 2" radiator I have now cools very well. Those turbos pull pretty good. Boost started at 2300 rpms for me and hit 17 psi by 3600. I would have liked to push them before I switched because there was still another 8 or more psi left in them. I'll be curious to see what numbers you put out with E85 and the flashed ECU. You should reach 500AWHP easy.

[Monster Stealth]

I had these turbos up to 17 psi on pump/E85 before getting knock but that was because some retard put a parts store radiator in the car which sucked and ran 20-40 degrees warmer so I had to run richer. The 2" radiator I have now cools very well. Those turbos pull pretty good. Boost started at 2300 rpms for me and hit 17 psi by 3600. I would have liked to push them before I switched because there was still another 8 or more psi left in them. I'll be curious to see what numbers you put out with E85 and the flashed ECU. You should reach 500AWHP easy.

You don't see to many people on the boards running these anymore. I had about the same experience spool wise, and that was with a leaky downpipe gasket and a trashed front turbo(found out after the fact). I am not sure how long my car will be down, but I really hope to get it back up before E85 classes switch. If not I will finish up my pump gas tune, and maybe throw some VP C16 in for fun. I saw in your for sale post you had DrWeldin's upgraded WG spring kit. Did you like it? Hard to install DIY?