www.MSruns.com read only forum (Jan.15,2018)

Name: Darin Ginther

Vehicle: 1988 Toyota 4Runner

Engine: 2.5L (overbore), custom forged CP pistons at 8.5:1 CR, new top line casting head (22re) - fully worked by DOA racing, +1mm oversize valves, custom camshaft, high flow oil pump, t3/t04b bullseye turbo, 2.5" downpipe.

Injection: Port injected, 440cc Supra MK3 turbo injectors

Description: Currently still a stock 4runner, eventually will be redesigned as an expedition type vehicle w/ electric lockers. Stage 1 is getting the engine enough power to climb mountain grades.

Website: http://22returbo.net

Update:
The internal wastegate I had on my turbo wasn't opening as early as hoped. This fact, combined with my inability to do KPA to PSI in my head meant that I ate a composite head gasket. I was leaking water into the #3 and #4 cylinder when the truck was off and leaking combuston gases into the radiator when running.

I replace it with a Cometic MLS gasket. Two things to remember:
1) You have to have a block machined fine enough for MLS. R50 or better.
2) MLS gaskets can be reused! No more replacing HGs if you need to swap cams.

I added a TIAL WG. Set to 6psi.
After a few engine mechanical failures (not my fault) - I'm up and on the road. I start building boost around 2k and I'm at 6psi by 2500 or so.

I suspect my turbo is a bit large for my application - it's a t3/t04b.

I'm playing with timing.. Which is a bit of a pain.

Fuel is pretty easy with the help of megalogviewer and a wideband.

d_ginther@hotmail.com

what is your ignition setup? dizzy or cps? also, what are you doing for vr conditioning?

D

celicaxx wrote:what is your ignition setup? dizzy or cps? also, what are you doing for vr conditioning?

D

Ignition setup is toyota "VAST" - IE stock ignition. See the MS documentation on how to deal with this system. It's fixed distributor.

I just finished tuning another truck - this time a factory 22RTE truck. T3/T4, MSnSE, same ignition system (VAST) with a MSD-6 unit.

It's owned by Harry Wagner:

http://www.harrysituations.com/projects/index.html

good stuff!

why not ignition control as well so you can boost-retard the timing? you could pump some more boost in without increasing risk of detonation.

I've used the VR sensor out of 22RE in a locked dizzi in my 18R turbo, fed it thru the LM1815 VR circuit and driven a Camry coil with a VB921 - works quite well once you get the air gap right.

Also? why no intercooler? no space or not needed?

cheers,
Charles

I saw your writeup on your truck it looks nice and is pretty close to what I am running I am still trying to get all the pieces together for my truck if you are wandering check out my writeup in the projects page under 22r stroker turbo . I am wondering why you are running most of the wires through the factory ecu plug is it for convience or necessity?

here is what my truck looks like and yes those dents are hard earned offroading lessens learned