Installing a turbo 4g63 into an nt 4g63

[mavisky]

Originally Posted by Morphius

Well, I'm in process of dropping a turbo 4G63 into my GGSX so I find I'm reading some material pertaining to this mod.

So, to summerize, the NT wiring harness doesn't have the associated plugs to add the injector resistor pack and knock sensor or the extra wire for the MAF.

RESISTOR PACK: It is needed because of the different impedence? So, what do the NT 2g guys do when the turbo their cars? How do they steer away from this madness with the harness? What's the impedence difference NT-T? Could it be "bypassed" by running larger injectors that have NT impendence?

honestly i have no idea how the 2g guys do it. but yes you could get some high impedance injectors instead of adding the resistor. i haven't seen much above 550cc though on high impedance injectors (at least from RC Engineering)

[thenewguy]

alright...ive been reasearching the turbo swap for a bit and im wondering why i must use the n/t flywheel. If the tranny is essentially the same (my repair manual treats them as the same thing i think) what prevents me from using the turbo one? Im curious because i will be using a 6bolt block with a tranny in a 94 (7bolt) and dont really want to have to go out and buy a 6bolt nt flywheel. am i an idiot, did i misread? help me out.

[mavisky]

the nt bellhousing and flywheel are physically smaller. if you'd read the tech article you'd see where i said in it that the turbo flywheel will not fit inside the bellhousing and rotate freely with a turbo clutch on the flywheel as well.

[Raph]

hi guys.. im picking up the 6 bolt donor car on the 23rd of this month! now, im gonna swap the tranny too ! now ill let u all know how it works out ,i might just swap the entire wireing harness over because i got 98 euro spec 4g63 nt ,the donor car is a 1990 US spec gst... i dunno if i modify the wireing harness but it wouyld be great if it would work out..maybe the wireing harness hasnt changed from the 1g nt(wishful thinking lol) ecept maybe for emissions crap i guess..

has anyone figured out the injector issues..couldnt i just use some imjectors with a high impendance rating rather than a resistor pack? (but i got both cars.. so,ill see what happens!)

[mavisky]

here's a new pic for the injector wiring harness, i'll be pm'ing luda to see if he can add this into the original vfaq.

[Raph]

thanks..keep this thread alive!!!!!

im gonna have to get a wiring diagram from the 2g Eurospecs ECU (maybe it has the same wirering as the US spec 1g nt)if not,ill rather rewirer at the ecus connector than swaping over entire wireringf harnesses

ill keep u guys posted of the develope ments

@ MASIVSKY getting a SAFC and MAF tranaslator will help this swap right?

[ugly95TSi]

hey raph my guess is to see if it has a six or seven bolt and go from there.

[mavisky]

Originally Posted by Raph

thanks..keep this thread alive!!!!!

im gonna have to get a wiring diagram from the 2g Eurospecs ECU (maybe it has the same wirering as the US spec 1g nt)if not,ill rather rewirer at the ecus connector than swaping over entire wireringf harnesses

ill keep u guys posted of the develope ments

@ MASIVSKY getting a SAFC and MAF tranaslator will help this swap right?

actually adding those won't help you any right off the bat really. you need to do the swap first before modding the wiring any.

[Raph]

maybe i can use the eurospecs ECU..what about those guys who do add tuirbokits..they dont get a different ecu..

im gonna get a Wiring diargram for the Eurospecs ecu connectors..i hpe the connector is simular to the 1g..if not i might need a 2g gst ecu?

this guy i know promised me a diagram by thursday or friday..ill post the connector diagram(i.E, what pins on the ECU do what etc)ill keep u posted

Funny,these two german guys did swaps on their cars..in each case they retained the 2g MAF and the 2g eurospecs ECU... one of them said hell help me out too..

its cool having a "T.S.T.F." a "Turbo Swap Task Force"
thanks for all your replys,im hoping to hear more as i bring more problems considering this " 3rd time in history Eurospec 2g 4g63 NT to 6 bolt 4g63 T swap"



please keep this thread alive!!!

[Raph]

Originally Posted by ugly95TSi

hey raph my guess is to see if it has a six or seven bolt and go from there.

^^^^^^^^^^^^^^^member of the TSTF^^^^^^^^^^^^^^^^^^^^^^^^^

other members are on this site too!

[BoostinFool4G63]

Originally Posted by Raph

^^^^^^^^^^^^^^^member of the TSTF^^^^^^^^^^^^^^^^^^^^^^^^^

other members are on this site too!

Yup! like me! We'll get it done! So stop worrying.

[mavisky]

Originally Posted by Raph

maybe i can use the eurospecs ECU..what about those guys who do add tuirbokits..they dont get a different ecu..

im gonna get a Wiring diargram for the Eurospecs ecu connectors..i hpe the connector is simular to the 1g..if not i might need a 2g gst ecu?

this guy i know promised me a diagram by thursday or friday..ill post the connector diagram(i.E, what pins on the ECU do what etc)ill keep u posted

Funny,these two german guys did swaps on their cars..in each case they retained the 2g MAF and the 2g eurospecs ECU... one of them said hell help me out too..

its cool having a "T.S.T.F." a "Turbo Swap Task Force"
thanks for all your replys,im hoping to hear more as i bring more problems considering this " 3rd time in history Eurospec 2g 4g63 NT to 6 bolt 4g63 T swap"



please keep this thread alive!!!

you could keep your ecu and get a maft and tune around it i suppose. hopefully all will go well. i'm just not 100% sure. looks like you might have to be the one who goes out on a limb and tries something this time. good luck and happy boosting when you get it to work correctly.

[Raph]

Thanks again..the Talons donor car tranny is shifting like $hit..looks like imn def gonna use the nt tranny in there..im gonna try get a spacestar 5th gear for some more top speed on the autobahn.(or get a used 2g gst tranny if the ratios arent satisfying)

besides that..what if(asked somewhere else..got no reply) what if i use HIGH impendance 550cc injectors..instead of the donor cars injectors with resistor pack..plus a walbro 190 ..now what fpr would i use?(i got two cars..the donor tsi and the eurospec nt 4g63)

yeah..why not drive the tsi? because the body needs too much $$$$ put into it..bout 1500 paint,600 suspension,1000 wheels and tires... etc etc

instead ill definatlry swap into the 2g

the donors cars manifold is cracked ..should i get a 2g mani or another 1g one??

if i get a 2g manifold..could a run a 16g(is possible to eventually find one from switzerland or sweden..evo territory)

the reason i ask sooo manny questions is because of the time i will have to wait when i forget to order a part... its a time thing..and time is $$



keep this thread alive

what do u think about my injectors question? sounds logical..need your imput man

[tbTalonES94]

So this injector resistor pack? I hooked it up like you all said except i connected ALL of the left over wires on the harness side to the RED wire comming from the IRP. Would that hurt anything? Or should i take off all the other wires?

[mavisky]

Originally Posted by Raph

Thanks again..the Talons donor car tranny is shifting like $hit..looks like imn def gonna use the nt tranny in there..im gonna try get a spacestar 5th gear for some more top speed on the autobahn.(or get a used 2g gst tranny if the ratios arent satisfying)

besides that..what if(asked somewhere else..got no reply) what if i use HIGH impendance 550cc injectors..instead of the donor cars injectors with resistor pack..plus a walbro 190 ..now what fpr would i use?(i got two cars..the donor tsi and the eurospec nt 4g63)

yeah..why not drive the tsi? because the body needs too much $$$$ put into it..bout 1500 paint,600 suspension,1000 wheels and tires... etc etc

instead ill definatlry swap into the 2g

the donors cars manifold is cracked ..should i get a 2g mani or another 1g one??

if i get a 2g manifold..could a run a 16g(is possible to eventually find one from switzerland or sweden..evo territory)

the reason i ask sooo manny questions is because of the time i will have to wait when i forget to order a part... its a time thing..and time is $$



keep this thread alive

what do u think about my injectors question? sounds logical..need your imput man

high impedance injectors are a perfectly reasonable solution, the only problem is that they are a little more expensive and harder to find.

[mavisky]

Originally Posted by tbTalonES94

So this injector resistor pack? I hooked it up like you all said except i connected ALL of the left over wires on the harness side to the RED wire comming from the IRP. Would that hurt anything? Or should i take off all the other wires?

the left over wires from the harness side have absolutely no purpose whatsoever anymore. i suppose you could do whatever you wanted to with them, but i don't see any reason to connect it to that.

[Raph]

Well, i looked on the 2gnt boards and RC engineering maqkes 550cc injectors with 12 to 16 ohms ...

here
http://www.evasivemotorsports.com/me...=RCEngineering


they have saturated and peak and hold..

[Raph]

this looks helpfull too

http://store.summitracing.com/partde...24494%20303316

[Mike1992]

Im picking up a wrecked 90 gst this thursday in hopes to pull off a full engine swap. Also gonna change out all the wiring harness inside and out. Thank god for this thread, I was really wondering on what to do with the nt tranny and clutch setup. (turbo tranny grinds horrific) Do you think I outta go with a centerforce dual friction or something act?

[mavisky]

if you're getting the entire car then use the turbo transmission if you have it. otherwise i'd go with something from act, i've had good luck with my extreme pressure plate and street disc from www.clutchcityonline.com . good shipping and the best prices on the net.

[Mike1992]

I havent gotten the car yet, but the owner is bringing it to me on thursday. He says the tranny grinds in alot of gears, however im not ruling out mis-adjustment, but driving 3k miles on a mis-adjusted clutch is hell on syncronizers. (thats how long hes had it) However if I end up using the NT tranny and flywheel, I will get the clutch you specified. Thanks Mike

[Mike1992]

I bought the car! 90 GS-T with 123k wrecked on the driver side pretty bad, and transmission is way out of adjustment. The clutch releases right off the floor. Grinds in 1/2/3/R, Hope I can fix that. Compression wasnt great, its 135-135-125-125. Not bad for $450 Ill let yall know how things turn out

I told him he could keep the wing :laugh:

[mavisky]

jeebus that things pretty rough. at least it looks good under the hood.

rings are only like $80, a rebuild from shepherd is only like $800.

[Mike1992]

Well, I got bad news, I think I blew it up The vaccum line came off the wastegate actuator and without the tach working I redlined 2nd racing a camaro and soon enough shes blowing hella smoke and oil is coming out of somewhere below the engine. Oil was seaping through that huge crack on the exhaust manifold, hella smoke coming from the turbo area and out of the tail pipe. Im gonna have to say turbo is wasted and something interanally melted. Shes sitting in a bank parking lot until I can get it towed home to pull it apart

[mavisky]

did you not have a boost guage??

unfortunately it sounds like temptation proved to strong in a car that was nowhere ready to be racing yet. if you're lucky it might be save-able, if not hope it was fun while it lasted.

[Mike1992]

Car was bone stock. It ###### wasnt ready for racing, but I couldnt help myself I had to get out and go with this car today its so insanely fast over my NT. The engine still seems to idle fine, however smokes like a train. When I get home Im gonna check out the compression again, but I garantee the turbo is shot as I heard some really odd noises from it as the car idled in the parking lot. I learned my lesson, rebuild time is now clearly near as i start the NT to Turbo conversion the right way. Ive got all the parts needed. All its gonna take is money and time to get it the way I want it now. :o

[TimG]

Well do a compression test. Anything below 140 psi will let you know you are screwed. A 14b is cheap to replace so hope that is the issue at hand. If it's the motor, then you have your work cut out for you.

[kelvinb]

im sorry to say it, but the condition it was in and you KNOWING it and RACING it is horrible

[Project ES]

Im finally coming to the endo of the wiring harness task on my car. I have read this post more than a few times and I need to find out the wiring for the fuel pressure solenoid. Mainly does it get grounded to metal or to the ecu and at which pinouts? This post and this site in general are the best damn sources ive found for this swap. I appreciate all the help.
D at S hit M oves

[mavisky]

it gets grounded anywhere you want it to

http://www.ecanfix.com/users/mdhamilton/1991tntecu.html

use that for what pin.

honestly though i don't even use mine anymore, it's wired up and all, but no vacuum lines. may affect smog shit though , i dunno.