94 engine swap

[vr4flip]

quick question that i need answered asap. can i swap a 94 3kgt vr4 engine into my 91 vr4 with no problems or modifications at all? is this a diret bolt- on? if so where can i get this 94 engine? any help wold be really great, i need this engine yesterday! :(

[vr4flip]

i got this qoute from asapmotors.com. does this sound like a reasonable price and is there any other test that they should do to the engine?is there any other questions i should ask them? somebody please help me out since i have never bought an engine before, i value the advice that people give me in this forum a lot. any help would be great.

qoute:
We have a nice low mileage engine in stock. It has been hot run tested,
cylinder tested, inspected, steam cleaned, palletized and is ready for
shipping. It has the turbo's. The cost of the engine is 2995. It has a
90 day warranty, unlimited miles. If you have any questions, please do
not hesitate to ask

[detpac]

No. The 94 has different wiring harness. It does not take a whole bunch, but it is not a direct bolt up. The ECU is different and some of the sensors are in different places.

[vr4flip]

how bout the 95. this is all the info that the guy gave me. how expensive would the ecu and wiring harnesses be?

95 model. Yes we test the turbo's. No ECU. The engine is usually
complete. They normally have intake, exhaust manifold, timing cover,
valve cover, oil pan & valve cover. We always recommend that you go back
with the original parts from your engine to keep the emissions correct.
However, most customers use our parts. The cost of shipping is about
175. Thanks

[Braincrater]

Nope, you can only directly swap a first gen with a first gen (91-93) and second with a second(94-99) without changing the wiring harness and the ECU's and a few misc parts.

[imp pwr online]

Originally posted by Braincrater
Nope, you can only directly swap a first gen with a first gen (91-93) and second with a second(94-99) without changing the wiring harness and the ECU's and a few misc parts.

Close but no cookie

Only the 91-92 are the same. 93+ changed from the Adjustable CAS on the Cam to the CAS on the Crank. The wiring harness therefore is different on 93+. You CAN rewire a 91-92 to wire in the new style CAS though. But it's not a bolt in.

Hell, I am going from a 93SL to a 91TT ECU-Harness and installing the 91 CAS on the cam.

None of it is hard, it's all doable.

[Braincrater]

Originally posted by imp pwr online


Close but no cookie


Well, I said a few other misc. parts:rolleyes:. Just jking, thnkx for the correction, I forgot about that. But I have to say, I have looked in my manual and it only shows the 91 as having the CAS but I have a 92 and it does in fact have it, crazyyyyy...

[BAdAzZV8]

Put some 92 heads on a 94 block, and you have a running motor. But you need a few more things, different oil pan, different A/C bracket, different lower timing cover, and I think that's all. There is a link to mating a 2G motor to a 1G car. There's no sense in changing the ECU and all, I'd rather swap heads and have a hybrid motor that can adjust timing with the CAS.

[imp pwr online]

Originally posted by BAdAzZV8
Put some 92 heads on a 94 block, and you have a running motor. But you need a few more things, different oil pan, different A/C bracket, different lower timing cover, and I think that's all. There is a link to mating a 2G motor to a 1G car. There's no sense in changing the ECU and all, I'd rather swap heads and have a hybrid motor that can adjust timing with the CAS.

You do NOT have to swap heads to get an adjustable CAS for timing. I am using the 93 heads I have which are stock setup with no CAS, it is Crank angle and not adjustable on the Crank side.

All you have to do is remove the plug on your head that is covering the hole to the end of the cam on your head where the 91-92 has a CAS installed. 93+ heads are all the same as 91-92. And you can install a 91-92 CAS right on the 93+ head no modifications needed. Except you will need to do a wiring trick, unless like me you replace the entire ECU harness with a 91-91 harness, then it all plugs up stock

[TooFast4Radar]

Originally posted by imp pwr online


You do NOT have to swap heads to get an adjustable CAS for timing. I am using the 93 heads I have which are stock setup with no CAS, it is Crank angle and not adjustable on the Crank side.

All you have to do is remove the plug on your head that is covering the hole to the end of the cam on your head where the 91-92 has a CAS installed. 93+ heads are all the same as 91-92. And you can install a 91-92 CAS right on the 93+ head no modifications needed. Except you will need to do a wiring trick, unless like me you replace the entire ECU harness with a 91-91 harness, then it all plugs up stock That's what I did on my 92 VR-4 - used a punch and took out the plug on the intake cam and installed the 91-92 cam angle sensor. That was the only modification needed and only takes a few minutes.