My MkIII Build by Bmettie

4 minute(s) of a 34 minute read

Its been awhile since I updated this so here we go:

BC264 Cams went in and shes running great. 

Going standalone now so I'm switching to a COP setup, most likely 1zz coils. But I didn't want to delete the linkage and lose cruise, I like the luxury part of our sport luxury cars, so I wrapped my head around it for a while and came up with this. 

0.060" Alum SHT Mockups

Now of course using a Camry throttle cable, Corolla throttle body wheel(AT stuff cut off), one lever from the original linkage, make/buy a shoulder nut and make a bracket to hold the cables at the throttle body. Still needs sandblasting and paint to pretty it all up. Might do wrinkle black here as well to match my scheme.

Cardboard for flat pattern

I thought the gussets were a little small so i made them bigger (no pic yet). Though I'm unsure if I'll even need them, I plan to bend this from 1/8 6061 Alum, so it might be strong enough by itself without gussets. I'll be making a few shoulder nuts and I'll have a flat pattern soon if anyone is interested in this as well. 

And since I'm going standalone I decided to pull the harness and clean it up a bit, remove my MAFT-Pro, clean up some connectors maybe delete some, especially since this is car was born auto and converted to 5spd. 

So I had it out and I was staring at it, then I decided that I'd look into make my own new harness. Well here we are now...

Dedicated shielded lines for CPS and knock sensors, I'm even doing my best to match the OEM wire coloring scheme, I changed a few mainly because I don't need 3 different white/red(or other duplicate color) wires in the harness. 

And I found a great US source for replacement ECU terminals, alot of connectors. I also learned that knock sensor connectors, Body plug connectors, and more are still available from TOYOTA. I literally just opened the box from Curt. When I'm completely done with the harness I'll post up all the info I've learned. Changing 95% of the underhood connectors to Sumitomo DL series. Adding a coil pack connector so upgrading coils would be a matter of making a new 2' harness vs tearing into the main harness, thinking about adding a firewall bulkhead as well. For the life of me I can't source a 60mm grommet for the firewall, anyone find these elsewhere? It's been a fun learning experience, especially when deciphering why Toyota did certain things with there wiring. I have a full listing of a 1991 turbo automatic harness color and routing excel sheet if anyone it interested.