Resolved swapping a 90 4g63 into a 91 dsm

[Jackson]

What problems are there to swap in a 90 4g63t from a 1g dsm into a 91 dsm? There is some electrical differences, and the oil cooler is different, but how much different for a swap from a 90 into a 91? Is there going to be some headache if I do this endevor or is it pretty straight up?

 

[DevilSperm]

its pretty straight forward. You will need a 90 TB because the TPS is different. The CAS is different. the coil and power transistor are different and the cruise is mounted in a different place. Thats all that comes to mind right now but i just woke up. That should be it and if I think of anything else ill come back

 

[Jackson]

Hmm, since this is going into a 91 though, can't I use the 91 intake manifold with TB and TPS? And the CAS look like it has the same insert into the cam as the 91, so wouldn't that be the same as well when it comes to swapping in parts?

 

[overdoseheroin]

Hmm, since this is going into a 91 though, can't I use the 91 intake manifold with TB and TPS? And the CAS look like it has the same insert into the cam as the 91, so wouldn't that be the same as well when it comes to swapping in parts?

you need to use the 91 cas, 91 throttle body and 91 fuel rail. everything else will be kosher.

 

[DevilSperm]

hell yeah, if you have the 91 stuff already itll be a snap

 

[Jackson]

you need to use the 91 cas, 91 throttle body and 91 fuel rail. everything else will be kosher.

And 91 ignition coils. They are a different plug.