Nice looking. Does the JDM have any performance benefits? I thought that they were pretty much the same..... Your in louisville too? I'd like to come see that sometime.

Looks like fun swapping motors in the rain. Gotta love it !!! Good luck with workin out the bugs. If you don't mind telling me how much did that front clip cost you? I just need a new motor and have been lookin around for prices.

DaDeuceIsLoose said:

Nice looking. Does the JDM have any performance benefits? I thought that they were pretty much the same..... Your in louisville too? I'd like to come see that sometime.

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Im not sure really on how much different it is , I know that the intake manifold setup looks like it could make more power but we would of had to change the whole wiring harness, but hes going stand alone so we can pop it on after that... the turbo is a 16g from what ARD told us from his orig. 14g , I dont really know what else is different being JDM , some honda kid said that being jdm that they use better metals internally but thats why I posted this up so maybe someone can give us any information... If u want to look at it call Chris at 502-429-9794

Snobordin8 said:

Looks like fun swapping motors in the rain. Gotta love it !!! Good luck with workin out the bugs. If you don't mind telling me how much did that front clip cost you? I just need a new motor and have been lookin around for prices.

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I think total it was 2500$ delivered to his front door, motor only has 20k on it turbo was perfect, included tranny ,transfercase,fmic, all kinds of goodys, the clip is right hand drive too , so theres plenty of stuff to ebay, there was nothing missing really from the front half of the car so now he has like 2 of everything..... again we got it from ARD performance, and he delt with a guy named rich I believe, IF SOMEONE CAN CLARIFY THE DIFFERENCES IN JDM POST EM, I will post the finished pics tomarrow , the car feels much better and responsive

That engine is basically the same as usdm except it has the 510cc yellow top injectors, 16g, and of course the intake manifold.

cool , Im gettin ready to go back over there and Ill get better pics, its not raining

got some sunny pics

not bad

engine looks like new how does it run?

the car is running great except for the stupid idle problem, his orig. throtle body got damaged so we picked one off of ebay, soon as we started it it was idling at 1300rpm and I got the idle screw all the way in, we changed the ICV and the tps and its still the same , I think its this trottle body tho so well figure it out, bot WOT its a blast

They say you learn by asking questions... with that.

You mentioned that the intake looked more powerful, which most likely it is. Since air flow is one of the major factors in how an engine runs, do you think that the engine is not getting the proper amount of air, and thus is not running correctly. I would suspect the air flow of the usdm intake might not be pushing enough air to compensate for the 510 injectors. Possibly the ecu is compensating rpms for proper fuel burn.

Another thought just popped in mind. With the overall difference being you went from usdm eclipse to jdm Gvr4, might there be a difference in ecu's? With basically every major part of the engine being different, ie turbo, injectors, and intake, maybe mits made a different ecu for this engine setup? for example small differences between gst ecu and gsx ecu. With the front clip at your disposal maybe you could cross reference numbers?

You should sell me that fmic so i can put it on my gvr4 and the piping also pm me if you want to sell it. PLEASE SELL IT mine cracked and i had to bypass it.

Warmachine91vr4 said:

You should sell me that fmic so i can put it on my gvr4 and the piping also pm me if you want to sell it. PLEASE SELL IT mine cracked and i had to bypass it.

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Oh god, please sell it to him...

And you are correct. The jdm vr4 ecu has small differences such as compensation for the larger injectors and increased airflow , its mapping it slightly different than the udsm spec ecu's due to several things including smog issues, i bought a vr4 rs front clip a few years ago to convert my us vr4 to rhd and get the extra 50 hp i stuck with my stock e prom ecu rather than the rs's eprom ecu and after about 30 minutes of driving i swapped it out just to see if it would make any difference and it was two diff worlds, the rs's ecu was superior to the stock eprom unit. now that i helped you sell me that fmic and piping. as long as it isnt cracked i am not worried about bent core fins. i see some damage to the front end on your pic. and let me tell you how lucky you are to have gotten that motor the 16g vr4 motors are rare and hard to come by. it took me about two weeks to find one that was in good shape as a clip to do the conversion. got it for 1500 bucks the "shop" that had it could not ship it, he said he would knock 1200 off the price if i picked it up, 2hrs btw

Just as a side note, buying/selling parts in the forums is not allowd, perhaps you could PM his so the thread doesnt get locked

so the most superior 4g63t is the gvr4 what year? 89-92?

A few questions..
Will the engine bolt to the fwd cars? if it's like any of the others it should, correct?
Would the 2g exhaust manifold still be better than the gvr4 manny?
Would it be easier to just upgrade the injctrs, 16g, and intake on a usdm 4g63t?

MrHighC said:

so the most superior 4g63t is the gvr4 what year? 89-92?

A few questions..
Will the engine bolt to the fwd cars? if it's like any of the others it should, correct?
Would the 2g exhaust manifold still be better than the gvr4 manny?
Would it be easier to just upgrade the injctrs, 16g, and intake on a usdm 4g63t?

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If you upgrade injectors, turbo, and intake, it will be the same as the jdm engine. Neither is superior to the other, they are the same. Only other difference Ive heard "rumor" of was some jdm 6bolt engines had 8.5-1 compression but I have yet to see anyone verify this. I would not consider trying to install the dual runner intake on a usdm car because of having to run extra vac lines and wiring solenoids to operate the butterfly valves. I dont have personal experience to speak from but a good friend of mine has done it and the only difference he saw was increased low end for street driving. I myself have a 60-1 so low end doesnt even exist in my vocabulary.

MrHighC said:

They say you learn by asking questions... with that.

You mentioned that the intake looked more powerful, which most likely it is. Since air flow is one of the major factors in how an engine runs, do you think that the engine is not getting the proper amount of air, and thus is not running correctly. I would suspect the air flow of the usdm intake might not be pushing enough air to compensate for the 510 injectors. Possibly the ecu is compensating rpms for proper fuel burn.

Another thought just popped in mind. With the overall difference being you went from usdm eclipse to jdm Gvr4, might there be a difference in ecu's? With basically every major part of the engine being different, ie turbo, injectors, and intake, maybe mits made a different ecu for this engine setup? for example small differences between gst ecu and gsx ecu. With the front clip at your disposal maybe you could cross reference numbers?

Click to expand...

i have the same motor setup almost and i was gonna go with the dual runner intake that comes on it but Extreme which is right down the street said that it actually flows less due to the extra set of butterflys, same concept as a vr6 manifold, so i ported the 94 manifold and used it and my car idles within 30 rpm all the time

were runnin everything off the motor except int. manifold and we are using the jdm ecu and yes we started the car on the stock ecm and changing it was a difference, we didnt want to go threw all the trouble just to run the intake manifold cause the coils are totally different . were gettin ready to install a standalone from www.sdsefi.com so well run it then. we fixed the idle problem. but know the car is down and were thinking coil now but thats in another thread.

maddwrenches said:

Im not sure really on how much different it is , I know that the intake manifold setup looks like it could make more power but we would of had to change the whole wiring harness, but hes going stand alone so we can pop it on after that... the turbo is a 16g from what ARD told us from his orig. 14g , I dont really know what else is different being JDM , some honda kid said that being jdm that they use better metals internally but thats why I posted this up so maybe someone can give us any information... If u want to look at it call Chris at 502-429-9794

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as you probly see that i am in louisville as well.

better metals internally might be iffy considering that came from a honda guy. but then again it might be true.

anyone know where to get a jdm gvr4 ecu?

Man that front bumper of the VR4 Clips would of been worth some money if it wasn't all FUBAR. I would of bought it, WTF

Damn $2500 is crazy for half a car..Especially with no useable interior parts.

Im about to buy motor for 138 due to blown oil line on the highway..
Ive been doing some shopping and searching but havent decided where to buy from yet.

MrHighC said:

so the most superior 4g63t is the gvr4 what year? 89-92?

A few questions..
Will the engine bolt to the fwd cars? if it's like any of the others it should, correct?
Would the 2g exhaust manifold still be better than the gvr4 manny?
Would it be easier to just upgrade the injctrs, 16g, and intake on a usdm 4g63t?

Click to expand...

I've researched a lot before buying my engine and found out that the best GVR4 Engine is from a Galant VR-4 RS Model (Rally Spec) 1991. I got one and have pics to prove it. I got stock the Big 16G Turbo, the 510cc yellow injectors, the Cyclone style intake manifold and bigger throttle body elbow. The only thing that wasn't so good is that the tranny has the EVO final drive gear ratio of 3.909 instead of normal DSM/GVR4 of 3.545. So I torned apart the VC in it and maybe damaged my rear diff also. So buy the GVR4 RS Engine, but not the tranny. Short Ratios are amazing but you don't get the good ratio for our rear diffs. I plan to swap the tranny this spring.

Hope it helped you and maybe others