jdm 4g63 engine swap into a 97 gst

[CrawlHer]

Hey guys new to the site. I recently bought a 97 gst spyder and a few months later the motor blew up . Any way I ended up buying another 7 bolt motor from a local engine place. I received the JDM engine today and noticed a few o differences between the 2 and had a few questions.

DIFFERENCES

1) The intake manifold is different along with the intake pipe that goes to the throttle body and the turbo intake.

2) obviously a totally different turbo. casting markings say tdo4hl 14b perhaps? my stock turbo is a t25.

3) it has a front crank sensor behind the timing cover and also has a mounting spot for a cas sensor on the left side of the valve cover just like my current 7 bolt.

both motors are 7 bolts and they both have all four transmission bolt holes like they should.

4) the thermostat housing are different aswell. my current 7 bolt has a cap on it and the one on the replacement motor has a vent bolt in it.

5) there's a oil feed line that bolts to the head next to the thermostat housing and I believe it goes to the turbo?

6) the valve cover is a titanium color instead of silver like my current one

my questions are

1) If I swap intake manifolds, turbo's, and the upper potion of the thermostat housing will this motor work? everything else seem to be the same.

2) can someone help me identify this motor.

3) my 97 cas should bolt right in place and I should be able to use my current ecu along with all my current sensors and what not right?

4) how do these plugs look to you guys?

5) is this an evo 3 motor?

I know this has been covered tons of times before so I apologize. I was confusing my self and just wanted to make sure that my train of thought was correct before proceeding with this swap.

thanks for all the help in advance. I really do appreciate it. just trying to learn and get back up to speed on these fricking DSM'S

Thanks again
CrawlHer

pics of the jdm engine I just got

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THE OLD ONE STILL IN THE CAR

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[WES_393]

1) If I swap intake manifolds, turbo's, and the upper potion of the thermostat housing will this motor work? everything else seem to be the same.

Yes, if you swap everything DSM specific onto the new engine, then should work fine. I would suggest keeping the intake manifold since it's a nice upgrade over the stock 2g manifold.

2) can someone help me identify this motor.

Looks like an RVR engine to me.

3) my 97 cas should bolt right in place and I should be able to use my current ecu along with all my current sensors and what not right?

Yes, your CAS will bolt up. You could also use the sensor that is currently installed, you would just need to swap the firing order.

4) how do these plugs look to you guys?

They look normal, the grey tip is a good sign. But obviously I would trash them and install a new set of NGK BPR6ES plugs gapped to .028".

 

[DSM_ThuNDeR]

Evo 3 intake manifold = score!

 

[Cox Abele]

Turbo is a TD04HL-13T

Definitive: JDM TD04HL 49189-02500 - DSM Forums: Mitsubishi Eclipse, Plymouth Laser, and Eagle Talon Forum: DSMtalk.com

 

[CrawlHer]

Thanks wes_393 for the ansewers.

couple more quick questions

the replacement motor doesnt have a cas sensor installed thats why i was going to swap mine onto it. will i still have to swap the firing order? if so whats the firing order i need to swap to?

whats a rvr? galant vr4?

if i leave the intake manifold on i will no longer have an egr valve correct? what else would be would i need to swap over?

new set of plugs waiting to go on.

 

[WES_393]

the replacement motor doesnt have a cas sensor installed thats why i was going to swap mine onto it. will i still have to swap the firing order? if so whats the firing order i need to swap to?

Did you check under the intake cam gear? That's where it should be located. You only need to invert the CAS signal (or swap plug wires) if your using a 95/96 CAS with a 97-99 ECU, and vice versa. So 97 CAS with 97 ECU is just fine.

whats a rvr? galant vr4?

Think Geo Tracker with a turbo.

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if i leave the intake manifold on i will no longer have an egr valve correct?

If your current manifold doesn't have provisions for an EGR valve (which I don't believe it does), then you're correct. You will not have a functioning EGR anymore.

 

[007jimmy]

Yes, your CAS will bolt up. You could also use the sensor that is currently installed, you would just need to swap the firing order.

Actually the 97 CAS will not work unless he uses the 97 intake cam. The 2gb intake cams are drilled and tapped for the trigger wheel for the 2gb CAS. All DSM intake cams have the slot but only the 97-99 intake cams have the slot and the drilled/tapped hole for the 2gb trigger wheel.

So OP you could 1. swap intake cams from your old motor, 2. rewire the new motors CAS to your harness or 3. drill and tap your new motors intake cam for the 2gb trigger wheel.

I suggest option 1. Good luck!

 

[CrawlHer]

So if I swap intake cams everything will be fine.

I looked again this morning under the cam gear and yes there is a sensor there but there isn't one bolted to left side of the valve cover.but I will just install my current one in that place.

ok guys here's some pictures to clarify. these next two pictures are of the 2 plugs coming out of the timing belt side of the motor and a picture of the cas mount to the left side of the valve cover on my replacement motor. Also I did notice that the end of intake cam on the replacement motor is tapped already. You can kind of see them in the picture.

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these next pictures are they way my car sits now

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question is what do I need to swap over to make it work correctly?