1G Installing a turbo 4g63 into an NT 4g63

[Stingray90]

>92GS-T'd
All of your pin connections to the ECU are right. Although, for us '90 owners the MAF wire goes to pin 14 rather than pin 6.
As for- why doesn't the knock sensor ground out through the ECU like the BCS and the FPS? Simple, it's ON- All The Time. The solenoids are not. The ECU decides when to USE them. Same thing goes for the injectors. They fire one at a time(VERY FAST) not all at once. The ECU completes the ground for whichever injector and in turn gives it power. It only "READS" from the knock sensor.

>TimG & everyone else
The IRP pack is not as hard as it seems IMO. (1.) First connect the IRP to it's harness you got from your doner car or whereever. (2.) Then open up the wiring harness that runs across the intake manifold. Look for the THICKER (+) yellow wires (All yellow w/black, red, green, and white stripes) the thinner (-) wires run to the ECU (Do not touch these). (3.) Cut them & solder the half running to the injectors to the 4 black wires of the IRP (YB-BY, YR-BL, YG-BW, YW-BR) I don't know if it's necessary to put them in that order since the ECU decides which injector to fire, but better safe than sorry, (if anyone has did it differently w/good results let us know) (4.) Connect the red wire of the IRP to the opposite half of one of those THICK yellow wires that you cut. NOT the half you connected to the IRP! The 3 remaining cut yellows get heat shrink put on the ends of them (Not used). Seal it, wrap it, bolt it call it a day!

>mavisky- Thanx for taking us this far! U Da Man!!!

 

[TimG]

Originally posted by Stingray90

TimG & everyone else
The IRP pack is not as hard as it seems IMO. (1.) First connect the IRP to it's harness you got from your doner car or whereever. (2.) Then open up the wiring harness that runs across the intake manifold. Look for the THICKER (+) yellow wires (All yellow w/black, red, green, and white stripes) the thinner (-) wires run to the ECU (Do not touch these). (3.) Cut them & solder the half running to the injectors to the 4 black wires of the IRP (YB-BY, YR-BL, YG-BW, YW-BR) I don't know if it's necessary to put them in that order since the ECU decides which injector to fire, but better safe than sorry, (if anyone has did it differently w/good results let us know) (4.) Connect the red wire of the IRP to the opposite half of one of those THICK yellow wires that you cut. NOT the half you connected to the IRP! The 3 remaining cut yellows get heat shrink put on the ends of them (Not used). Seal it, wrap it, bolt it call it a day!

Stingray, you just made my life easier. Thanks very much. You DA man.

 

[92GS-T'd]

Stingray and Mavisky, thanks for double checking my electrical work. Hopefully i will be dropping in my motor/trans in tommorrow. I will update you guys on my progress. How far are you other guys on the swap.

 

[Stingray90]

Well, I'm almost there. If you look at my profile those are all the parts that I have. All I need is the I/C piping I'm custom making, all the maintainence parts (timing belts-Gatorback, waterpump, o2, etc..) and the Turbo Engine itself. I've got all the dough, I just have to finish wiring in the S-AFC, Profec-b, and my gauges. So I should be a TSI by the end of the month-LATEST!! OH HE!% YEAH!!

Hey mavisky, did you tap in your boost gauge to the throttle body or the FPS. I've read the FPS is the better choice (more accurate). I'm asking because the profec-b taps into the FPS too. I dont want to have that many taps off of one source, unless that's fine, but I've read that it's not. Maybe I could tap in another line on the manifold? Anyone know?

 

[mavisky]

i used the fuel pressure regulator line for my boost guage.

if it were up to me i'd suggest getting the turbo engine in and running under the converted wiring harness before i went and hooked up your ebc or tt, mainly so that you know that your base wiring harness is functioning correctly if you should happen to run into any problems along the way.

your profec shouldn't really need a boost guage since it has its own built in.

 

[MidnightRun]

Ok,
I've been keeping up with all the NT---> Turbo threads on many different boards, and I have a few questions, one in particular.

I have a 1993 Eclipse GS that previously had the NT 4g63 in it. I finished up my conversion about a year ago and it's been running great, with the exception of a few problems here and there(boost creep, etc.). I swapped in a JDM 4g63T motor and a 91 FWD Turbo Tranny, as well as tons of other goodies.

I keep reading about the Injector Resistor Pack being needed, but I don't have one on my car, and it seems to work great. I'm running the injectors that came with the motor, which are 510cc yellow top injectors.

I was simply curious as to what you guys thought about this. In a recent discussion with some local DSMers, they stated that the injector resistor pack was only needed for 2g swaps, or something like that.

I'm no expert by any means, so I thought I'd post up and see what you guys thought. Here is what I have done...

Modifications:
91(?) JDM 6 Bolt Engine
Big 16G Turbo
SS Turbo Oil Supply Line
SS Turbo Oil Return Line
Balance Shaft Elimination Kit
1991 FWD Turbo Transmission
ACT 2100
Fidanza Aluminum Flywheel
Symborski Shifter Kit
Greddy Shift Knob
SS Clutch Line
GM Synchromesh
Fluidyne Aluminum Radiator
2 Spal 11’’ Medium Profile Fans
Turbo Trix Silicon Radiator Hoses
Redline Water Wetter
2g MAS
Dejon Tool Intake Pipe
Dejon Tool Adapter plate
K&N Filter
3’’ Mandrel Bent Down Pipe
3’’ Test Pipe
3’’ Mandrel Bent Cat Back
Apexi N1 Muffler
Apexi Silencer
1g Stock Intercooler
510cc Injectors
Walbro 255 High Pressure Fuel Pump
Spoolin Up AFPR
B&M Fuel Pressure Gauge Kit
Apexi S-AFC
Power Slot Rotors
Metal Master Brake Pads
RRE SS Brake Lines
Motul 600c Brake Fluid
Greddy 60mm Peak/Hold Boost Gauge
Greddy 60mm Peak/Hold EGT Gauge
Greddy 60mm Peak/Hold A/F Gauge
Greddy Turbo Timer
Greddy Profec-B Electronic Boost Controller
Greddy Type-S BOV
Magnecor Spark Plug Wires
Greddy Oil Cap
Greddy Catch Can
Summit Racing Battery Relocation Kit
Optima Red Top Battery
Greddy Upper Strut Bar
Alpine Alarm
Larson’s Silicon Hose Kit
NGK Race Plugs
Kuhmo Ecsta Supra 712s

Maintenance:
Timing Belt Kit
OEM Water Pump
OEM Fuel Filter
OEM Knock Sensor
OEM O2 Sensor
New Drive Shafts
OEM Motor Mounts
OEM Passanger Splash Shield Kit
OEM Heater Hose Kit
OEM Engine Overhaul Gasket Kit
New Wheel Studs
New Lug Nuts
New Heat Shields
Redline Synthetic Oil
OEM Oil Filter
New Coolant Overflow Tank
New rear Wheel Bearings

 

[TimG]

Your JDM turbo engine has the resistor pack already on it.

 

[91eclipseGS]

will it hurt my 4g63 engine if i put stock turbo injectors in there and one more querstion will the turbo ecu fit my 4g63 wiring harness

 

[MidnightRun]

Originally posted by TimG
Your JDM turbo engine has the resistor pack already on it.

Could you elaborate one what you mean by this? I don't believe the JDM coil pack was used due to the special fabrication involved in mounting it.

 

[TimG]

Coil pack? Ummm... the IRP is used with the turbo wiring harness I believe. I'm not sure where it is mounted on the turbo car, but I believe it is already apart of your engine harness. Anyone know where?

 

[MidnightRun]

I only have a JDM motor, not the wiring harness. The IRP is a silver box that plugs into the wiring harness on the turbo cars. A Non Turbo does not have this because NT Injectors are high impedence. I don't know what you are talking about.

 

[TimG]

I understand how the IRP works. Where is it mounted on the turbo version of the car? Where in the harness?

 

[MidnightRun]

It connects to the harness via a plug on the turbo wiring harness. The actual IRP is mounted on the passanger side of the firewall. It's a small rectangular silver box. Really easy to spot!

 

[92GS-T'd]

Any special way to run the vacuum hoses after the motor swap, i noticed that non turbo motors dont have a purge valve (emissions crap). How do we compromise running the vacuum hoses if we dont have this valve?? Anybody know??

 

[mavisky]

at one point i'd figured it all out, but later i just said to hell with it and ripped it all out.

 

[Deltatek]

OK, i was originally told this swap was near impossible. seeing this makes me happy now though. heh. my question is, i have a 1.8 94gs and i wanna drop a gst into it. basically.. is it gonna really be that hard to do. and how much is it roughly gonna cost me. NOT including the engine. ive taken care of that part. Thanx guys i aprecciate any help.

 

[mavisky]

on a 1.8 you'd be best to fins a gst sitting in a junkyard and just buy the entire front half of it.

 

[Deltatek]

well ive already searched around for ANY 92-94 gst/x for sell thats even remotely around me. im in cali and the closest ive seen for sell is in ohio. Hence me wanting to do a swap to a GS-T. heh.

 

[mavisky]

if i'm not mistaken the mitsubishi graveyard (some company) is located out there. of course so is RRE.

 

[Deltatek]

whats RRE? yea i know im not THAT educated in dsm related stuff yet. heh. and dont worry. im having someone do the work, just want to make sure i have everything he needs for me to do it and the funds before i start. Thanx again
AIM = deitatek

 

[TimG]

RRE is www.roadraceengineering.com

 

[Below Ambient]

ok heres my situation.. will a 89 laser RS Turbo ECU work for my 92 NT to 93 turbo conversion? if so can someone point me in the right direction to find the ECU pinouts?

 

[TimG]

89? You mean made in 89 and was classified a 90? If so. Check here.
http://www.ecanfix.com/~mdhamilton/ecuwiring.html

 

[Below Ambient]

ty tim

 

[My93ClipseGS]

What does the fuel pressure solenoid do? If it isnt very important can i run without it, what problems if any will i see without it?