Okay guys its been asked alot, now i need details

[Joefishizzle]

Currently: 86.5 7MGE NA

I wanna swap to a 7MGTE. i found one from a 89. Ecu, wiring harness, ect.....


my questions....

1: Will it fit (subframe/mounts)?

2: Using 89 Electronics will my interior harness/Cluster have issues/problems?

3: Will my bellhousing for my W58 fit the GTE for now? (i will R154 Later)

Thanks guys

[btwilson86]

Mounts/oil pan are different, you should be able to swap your existing ones over (i think). Using a stock cluster, your tach will not work without modification. 89 is tricky, lots of different possibilities in wiring.

My friend has an 87 that we swapped a 7MGTE into with 89 electronics. Had to do some custom wiring (still don't have the o2 sensor heater circuit working yet). We were able to use his 87 dash wiring, and swapped in a pre89 turbo cluster, so all that works (except the boost gauge; have not been able to find that elusive boost pressure sensor or w/e you want to call it).

Get as many wiring diagrams as you can, and study the crap out of them. Maybe start making notes of what all is different and needs to be addressed during the swap.


I will say this, since we're on the topic of the engine swap; we both came to the conclusion that it would have been quicker, easier, and more cost-effective to just buy a turbo car. He was a few thousand dollars into it before it was running (that's obviously including the cost of engine and tranny as well as the exhaust, intercooler, pipes, and the little odds and ends needed for a stock swap)

[btwilson86]

Oh, and your w58 will fit fine as long as you use your n/a flywheel and clutch kit

[Joefishizzle]

Man I thought it would be straight forward. Im trying to justify going 2jz/1jz instead of 7MGTE. If it's that much work to find a pre 89 GTE might just go JZ. Thanks for the info man

[cre]

Don't forget to get the oil cooler setup and the aux electrical fan which sits between the rad and condenser.

There is a good deal more to a 1JZ swap. If you're feeling daunted by the 7M-GTE swap the then forget the 1JZ.

[Joefishizzle]

thanks guys, well its official. i bought a GTE
gonna rebuild it. looking for maybe 350 max. gonna locate 87 electronics and what not and go from there. guess im staying loyal to the M family.

[crazyfj40]

Let me know how yours turns out i bought a complete 90 turbo supra and im gonna swap that all into an 86.5 will be starting that soon i figured i would use the complete wire harness and dash out of the 90 along with the complete drive train out of the 90 as well that way i figure will be less hassle i hope. oh n the reason im doin that is the 90 has no title and im not gonna play with tryin to get one


Dan

[Joefishizzle]

Alright will do. However im gonna find pre 89 electronics and hook mine up that way. Less headache imo. I'll go from there. Got a grab on a harness near me for a turbo 87 so im on the right track

[cre]

I'd check if it's got a 6M or 7M crank. Pre89 electronics have a higher redline as those engines came with the lighter 6M crank. In '89 and I think even some '90s it was a mixed bag and you only knew by looking at the crank itself or, if you new it to be original, the tachometer's face (ECUs were different as well). The difference of a mere 250RPM isn't a big deal on a fresh build with mild goals, but it's something that's worth being aware of.

[Joefishizzle]

thank you cre. i will take a look at it once i have the motor on the stand and opened up. did the pre 89 NA's have a 6M crank aswell? cause if thats the case i will just take it out of my NA