3UR-FE Swap

[bulldog11267mad]

any updates on this build?

[BRX]

Originally Posted by bulldog11267mad

any updates on this build?

I got the hood done and the latest CAN translator makes the dash work like factory. Only thing missing or not working properly is the cruise control. The twin disk clutch is a bitch to daily so I haven't been driving it much lately but I did take multiple +400km road trips with it including bumper to bumper traffic.

I just retired my truck from racing and the 86 will be my main race car from now on. T56 coming this summer hopefully and will be heading to the track by the end of the year. I still have a lot planned for this thing.





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[gtpvette]

Is that a total re-do on the hood?? Looks great!

[BRX]

Originally Posted by gtpvette

Is that a total re-do on the hood?? Looks great!

This is actually the third attempt lol. Looks better from this angle.

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[chimpy]

Did you get the T56 installed? I'm interested in doing a 1UR swap and was curious what bellhousing, adapter, flywheel and clutch you used with the T56.

[e30cabrio]

Wow!

Amazing thread. I have a 2010 Crewmax with Crawford longtubes & OvTune, I can't imagine the rightnow torque you have.

How is the balance affected?

[TRS]

Nice one. Some numbers about this build?

-Curb weight
-0-60
-60-120
-1/4 mile
-whp
...

[Mykii]

@BRX Dude, this was one heck of an awesome thread to read!!! Super freakin enjoyed the process and the result-- that video and hearing it rev up was golden!!

[BRX]

Originally Posted by Mykii

@BRX Dude, this was one heck of an awesome thread to read!!! Super freakin enjoyed the process and the result-- that video and hearing it rev up was golden!!

Thanks brother! You just made me want to update this thread, a lot has been done to the car since my last update and I've got time to spare so here we go

I'll try to keep this in chronological order but it's been more than 2 years so some stuff might be out of order.

A few months after posting my last update I got a used f-body T56 that was installed in a 2nd gen GMC Sierra. I dropped off the transmission at the shop. On my way to the shop the next day in the 86 the stock transmission finally blew up lol. I lost 3rd and 4th.





Due to the 3UR bellhousing being smaller than a chevy V8, we had to go with a clutch that is smaller in diameter. Ended up going with a McLeod RXT 1000. We had to remove the starter gear teeth from the included flywheel and trim it down. The bolt holes were filled and then redrilled to match the 3UR crank bolt pattern.







Here is the adapter between the chevy bellhousing and the 3UR along with a very simple "crossmember" for the transmission. It was literally an 8mm steel plate with holes lol. We also welded the u joint/slip yoke to the driveshaft and balanced it. The clutch master cylinder was recently installed in the GMC truck so we retro fitted it to work with the stock pedal.











We had to adjust the shims behind the TOB a few times to get proper clutch pedal engagement and all seemed fine but it kept popping out of 4th gear and sometimes 3rd. We initially thought it was the old transmission acting up so we took it apart and found a few pieces missing here and there. I kept reading about the aluminum fork bending in old T56s so I got upgraded parts for it from tick performance hoping it would solve the issue with no luck.













After the rebuild we came back thinking it was the adapter out of alignment but I ran out of funds at the time and decided to spend it on small stuff here and there. The car was very much drivable, I just couldn't decelerate in 4th without it popping out.

Anyway, I got an MGW shifter and modified it to sit in the right location along with a new Raceseng shifter and a reverse lock-out delete kit from RDE.







Meanwhile it was summer and I was struggling with coolant temps again. I already had a bigger radiator with 4 fans total but it still kept overheating when it's over 40c degrees outside. We all thought it was simply a capacity issue so I installed another radiator where an intercooler usually is. Not the greatest idea but wth. It made a huge differnce as it no longer overheated while driving but as soon as I was stationary for 5 minutes it would heat soak. It's not my daily driver so I just kept driving it at night and waited until winter. I don't have final pics of the radiator, you guys have to trust me that mount with the jank welding wasn't finalized lol.



to be continued in the next post: