Turbo 4age tercel

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NWMO
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Re: Turbo 4age tercel

Post by NWMO »

Looking good Keegan!

Chris
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T4WD augury?
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SirFoxx
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Posts: 276
Joined: Sun Feb 05, 2017 5:42 pm
My tercel:: 1981 Toyota Tercel w/ 7age

Re: Turbo 4age tercel

Post by SirFoxx »

NWMO wrote: Sun Feb 26, 2023 5:10 am Looking good Keegan!

Chris
Thanks Chris!

Continuing to push forward. Made a frame out of a piece of metal from my roommates Toyota pickup for the secondary fuse box. It's ugly, but you'll never see it once it's mounted. Probably will rivet it to the shock tower to keep it away from the heat. Still need to trim the bottom side so it's not as long.

Also ran more vacuum lines. Blow off valve, fuel pressure regulator, and the Mac valve / boost controller all got new rubber. Stuff is good for 30in/hg, but I'm not sure if it'll do positive pressure. I doubt it'll see more than 10psi so it should be okay.

Also need to figure out the pcv valve. The 4age ran everything to before the throttle body, which is not great to begin with, but once you add boost, even if you add a pcv valve, it'll blow all the oil seals out. Probably will run a catch can, then vent to a frame rail like the good ole days.

Buddy is modifying the t stat housing, giving it a 90* bend so the lower hose can be rerouted away from the alternator and belt.
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1988 DLX 4wd Tercel Wagon w/ weber (RIP)
1985 4wd Tercel SR5 (RIP)
1986 Base 2dr Hatch (RIP / PARTS)
1986 DLX 4wd Tercel Wagon with ???
1985 DLX 2dr Tercel Hatch w/manual swap
1981 2dr Toyota Tercel w/7age (RIP)
1981 3dr hatch Toyota Tercel w/Turbo 4AGE
1981 3dr hatch Toyota Tercel SR-5
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Nordical25
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Posts: 172
Joined: Tue Feb 08, 2022 11:49 pm
My tercel:: 2 4wd 1987's. One with 4a, other with 3a
Location: Finland

Re: Turbo 4age tercel

Post by Nordical25 »

Looking good again!

Did you weld yourself that exhaust? The weld quality looks excellent.
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SirFoxx
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Posts: 276
Joined: Sun Feb 05, 2017 5:42 pm
My tercel:: 1981 Toyota Tercel w/ 7age

Re: Turbo 4age tercel

Post by SirFoxx »

Nordical25 wrote: Mon Mar 06, 2023 11:30 pm Looking good again!

Did you weld yourself that exhaust? The weld quality looks excellent.
Ha no. Someone in Florida made it. He made them originally for the mr2. As far as I know there's only a couple of these manifolds made.

Got more done with the wiring. Got most of the ignition coils wired in except for the ignition triggers for the ECU, got the injector power wired in, ran a new wire for the alternator to handle the 120 amps that it can put out, got the ground for the block hooked up, and am looking at what radiator fan I should use. Probably going to use a name brand 10-in electric puller fan as I don't think the original fan is meant to be a puller or will fit in the space anymore.

The power feed from the alternator is just the main power feed that used to be included in audio amplifier installation kits. The one I'm using is 6 gauge, but I don't think they include 6 gauge wires in with the audio kits anymore. Either way, it also has an inline fuse holder which will be handy for in case anything weird happens

Should have my rock auto parts here tomorrow, which hopefully will have a throttle cable that works, in a proper automotive v belt for the alternator.
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1988 DLX 4wd Tercel Wagon w/ weber (RIP)
1985 4wd Tercel SR5 (RIP)
1986 Base 2dr Hatch (RIP / PARTS)
1986 DLX 4wd Tercel Wagon with ???
1985 DLX 2dr Tercel Hatch w/manual swap
1981 2dr Toyota Tercel w/7age (RIP)
1981 3dr hatch Toyota Tercel w/Turbo 4AGE
1981 3dr hatch Toyota Tercel SR-5
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SirFoxx
Top Notch Member
Posts: 276
Joined: Sun Feb 05, 2017 5:42 pm
My tercel:: 1981 Toyota Tercel w/ 7age

Re: Turbo 4age tercel

Post by SirFoxx »

Oh hey look, more wiring! Also got me a throttle cable from a 99 v6 Camry. Still need to wire in fans, IAC, boost controller, and a handful of other things.

Ordered exhaust flanges today. Turns out the reman turbo I got is an industrial / agricultural turbo used mainly on Isuzu diesel engines. Luckily there was someone on eBay making a diy style exhaust flange for it.
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You do not have the required permissions to view the files attached to this post.
1988 DLX 4wd Tercel Wagon w/ weber (RIP)
1985 4wd Tercel SR5 (RIP)
1986 Base 2dr Hatch (RIP / PARTS)
1986 DLX 4wd Tercel Wagon with ???
1985 DLX 2dr Tercel Hatch w/manual swap
1981 2dr Toyota Tercel w/7age (RIP)
1981 3dr hatch Toyota Tercel w/Turbo 4AGE
1981 3dr hatch Toyota Tercel SR-5
User avatar
Nordical25
Top Notch Member
Posts: 172
Joined: Tue Feb 08, 2022 11:49 pm
My tercel:: 2 4wd 1987's. One with 4a, other with 3a
Location: Finland

Re: Turbo 4age tercel

Post by Nordical25 »

Well the guy in Florida knows then how to weld. It surprises me how well you find good parts from many models. I have been modifying some minor things but this build is something different in a positive way. Keep up the good work. Soon weather can start to improve and you want to test your Tercel.
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SirFoxx
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Posts: 276
Joined: Sun Feb 05, 2017 5:42 pm
My tercel:: 1981 Toyota Tercel w/ 7age

Re: Turbo 4age tercel

Post by SirFoxx »

More wiring progress. Added a big boy buss bar, hidden solenoid, cooling fan, starter wiring, etc. I had to fix the oil feed line. I had originally used a compression fitting in the mess of adapters to go from a brake fitting to npt, however I just decided to use l solder the fitting to the brake line. Easy to do with silver solder and flux.

Had a buddy modify the lower coolant fitting / t stat housing and used an 80's Camry coolant hose, cut to fit.

Still need to crawl under the car and wire in the fuel pump.
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You do not have the required permissions to view the files attached to this post.
1988 DLX 4wd Tercel Wagon w/ weber (RIP)
1985 4wd Tercel SR5 (RIP)
1986 Base 2dr Hatch (RIP / PARTS)
1986 DLX 4wd Tercel Wagon with ???
1985 DLX 2dr Tercel Hatch w/manual swap
1981 2dr Toyota Tercel w/7age (RIP)
1981 3dr hatch Toyota Tercel w/Turbo 4AGE
1981 3dr hatch Toyota Tercel SR-5
User avatar
SirFoxx
Top Notch Member
Posts: 276
Joined: Sun Feb 05, 2017 5:42 pm
My tercel:: 1981 Toyota Tercel w/ 7age

Re: Turbo 4age tercel

Post by SirFoxx »

A bit more progress. Started cleaning out the interior and fixed some rot holes on the shock towers, and patched shut a hole I had opened to fix a sub frame nut. I wasn't able to get as much done as I wanted as I got a nasty case of food poisoning this weekend. Yay...
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You do not have the required permissions to view the files attached to this post.
1988 DLX 4wd Tercel Wagon w/ weber (RIP)
1985 4wd Tercel SR5 (RIP)
1986 Base 2dr Hatch (RIP / PARTS)
1986 DLX 4wd Tercel Wagon with ???
1985 DLX 2dr Tercel Hatch w/manual swap
1981 2dr Toyota Tercel w/7age (RIP)
1981 3dr hatch Toyota Tercel w/Turbo 4AGE
1981 3dr hatch Toyota Tercel SR-5
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