Builds 1FZ-FE TRD S/C Rebuild

[thetoyotaman]

Has anyone experienced the wires running over the valve cover getting burnt. On our 87 22rte it’s a thing from the factory.

 

[LXDOC]

No

 

[Saito]

Has anyone experienced the wires running over the valve cover getting burnt. On our 87 22rte it’s a thing from the factory.

Mine did. But likely only due to being sandwiched between the IC and valve cover. They’re all wrapped up now w/ heat insulation.

 

[thetoyotaman]

Spent this afternoon at the museum.

 

[thetoyotaman]

I need to learn how to detail my paint for shine after seeing this.

 

[thetoyotaman]

I never did find a part number for the vacuum cap. Ordered a couple but they were too big. I found an old vacuum cap that came on a vacuum switching valve I had ordered years ago for a 85 4Runner and it looks like it’s the right size. Put one of the new clamps from the clamp kit on it.

 

[lumbee1]

I know this is a bit late but I replaced my engine harness. Before throwing it in the parts bin (never throw away toyota parts) I sniped some wires to add an extension to my IAC and TPS. I wanted to make sure they were as far away from the exhaust manifold as possible.

 

[thetoyotaman]

I spent some more time unraveling the wiring harness to discover that it is too short to reach over to the throttle body now. There’s actually a clamp junction so I gotta think about how I’m going to deal with this. Not fun taking apart an expensive wiring harness to discover this, that TRD said would work when it won’t.

 

[thetoyotaman]

This reminder popped up on mud. Maybe I should do this:

PCV System with the TRD Supercharger

I'm putting in a supercharger and I came across this thread: PCV 101 for Forced Induction 80's Basically, it suggests that the PCV routing should be changed from the TRD instructions so that the PCV hose moves from the intake manifold to the throttle body adapter pre-supercharger...

forum.ih8mud.com

 

[thetoyotaman]

The hardest part of dissecting the wire harness is the section where it goes down from the firewall past the EGR to the injectors. Once you get past that going across the firewall to the lead for the mass airflow sensor is pretty basic and easy to do. As I thought about this since it didn’t work the way the instructions said I’m gonna build an extension harness to tap into the factory harness and pull the leads out for the throttle body by the mass airflow sensor, where it will be all neat and up and away from the heat.

 

[thetoyotaman]

Parts started trickling in for the wiring and it was time to install the air cleaner housing to work on hoses so that I could begin working on the wire lengths. Turns out the throttle body fits the 3” silicone hose just fine but the Mass Airflow sensor is 3 1/4.” Not sure if I will be able to stretch it over that but if I can, will that be an issue for the hose?

 

[doc_random]

Parts started trickling in for the wiring and it was time to install the air cleaner housing to work on hoses so that I could begin working on the wire lengths. Turns out the throttle body fits the 3” silicone hose just fine but the Mass Airflow sensor is 3 1/4.” Not sure if I will be able to stretch it over that but if I can, will that be an issue for the hose?

View attachment 3960782

I've got one of these on mine.

https://www.amazon.com/TMKOOL-Reinforced-Temperature-Silicone-Reducer/dp/B09HTJQB7T/ref=sr_1_3?crid=2M4TIH7J43V3Y&dib=eyJ2IjoiMSJ9.6Dbvx-6gwKL0eC45wfgN-bO-DnuKGCsthVcQLE7XCBa20bauKjnigH-vpfryA4XuRuL4cdcfcAFjo3u2XMnlQsiirGv5zEYrs3xH3W9HKB5mqk_NoTE5Yave8sAo78miMEElrlLcY3l3Us2mFpX5cQv0qmjfG2vJB5CqP65svejIbm95dDIgBMo9yr2LYRAmUOThIiIqWDsnYtr3MpEMYFHQFSBvpMgPxvhn45G6CC4.zKjxk4ef_v8PGu3r3rLYVBHgTjBeGZZOSm9T-13KcG4&dib_tag=se&keywords=3.25%2Bto%2B3%2Binch%2Bsilicone%2Bcoupler%2Bblue&qid=1753997179&sprefix=3.25%2Bto%2B3%2Binch%2Bsilicone%2Bcoupler%2Bblue%2Caps%2C448&sr=8-3&th=1

 

[doc_random]

Parts started trickling in for the wiring and it was time to install the air cleaner housing to work on hoses so that I could begin working on the wire lengths. Turns out the throttle body fits the 3” silicone hose just fine but the Mass Airflow sensor is 3 1/4.” Not sure if I will be able to stretch it over that but if I can, will that be an issue for the hose?

View attachment 3960782

You can see it at the edge of this picture.

 

[doc_random]

 

[thetoyotaman]

Looking at the old hoses, you can see that the rubber is cracked not helped from the stretching. I decided to order a similar custom reducer hose that has the correct sizes on it. The more I get into this the more it appears this kit was sort of thrown together without the details Mr. T would have done in Japan had it been engineered there.

 

[thetoyotaman]

While waiting on the new hose I installed a fitting to run the boost gauge as I wanted a more factory appearance as opposed to the supplied T. Pretty good location for the gauge.

 

[thetoyotaman]

Parts are showing up and I realized the TRD instructions don't really say much at all about the throttle body cable routing so fiddling with that at the moment. The kick down cable looks to be the tightest bend for install.

 

[thetoyotaman]

Conversion hose arrived and fit is nice.

 

[thetoyotaman]

Used the ultrasonic cleaner to clean up the pipes. They held up fairly well over the years although one looks like maybe the original powder coating wasn’t the best. They need a cleaning from the oily mess inside them.

 

[thetoyotaman]

Cleaned up the clamps too. TRD does supply you or at least mine came with a bigger clamp for the mass airflow sensor.