2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

TB mod, recommended for aftermarket turbo?

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Old Mar 13, 2002 | 12:41 PM
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TB mod, recommended for aftermarket turbo?

k, first of all.. i'm not even sure what TB(throttle body) mod is... I've read up on it on the forum, but still don't know exactly what it is, and what kind of improvements it provides... I'd appreciate it if someone could enlighten me in the fields of TB mods, how to do it since it seems like it's a DIY project. and what kind of improvements I can expect... Another question is, from what I gather, all the TB mods are done on TII with stock turbo... Is it possible/worthed to do a TB mod on TII with aftermarket turbo?
thanx

e
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Old Mar 13, 2002 | 12:44 PM
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Wankel7's Avatar
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From: Indiana
Go check out Ted's website. www.fc3s-pro.com/main.html. There is soooo much info on that website. The tb mod is at http://fc3s-pro.com/TECH/HOWTO/TBM/tbm.html

Just one tip if you do it. Treat each screw like it will be th strugle of a life time to get it out.

James
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Old Mar 13, 2002 | 01:49 PM
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Drill out the screws, cut them off with a dremel, or use some battery acid or the likes to eat through them. Acid is fun!
Drilling is usually easier than trying to remove them...
Sean Cathcart
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Old Mar 13, 2002 | 03:43 PM
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Not that harsh I ment when you attack the screw put penatrant lube on it. When you use a screw driver make sure it is sharp. And tap the screwdriver into the screw with a hammer.

James
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Old Mar 14, 2002 | 01:40 AM
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Yep..soak that SOB with WD40 and make sure you use a big philips screw bit because they grab better than a pointed ones. I also had the same problem when i was doing my TB mod. After you remove all 4 screws the rest is easy!..
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Old Mar 14, 2002 | 01:44 AM
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Felix Wankel's Avatar
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From: Birmingham, AL
If I'm taking a throttle plate off that isn't going to be replaced, I don't even bother trying to loosen the screw. I just drill it out and save the hassle.
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Old Mar 14, 2002 | 05:05 AM
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My point exactly, Felix. Never had luck removing them. tried all the lubes, Heat, screw drivers, and then finally said **** it.
BTW, avoid using lubes on the engines at all possible. WD-40 and other penetrants are really bad on rubber. Try spraying them on a blown up latex glove. It will pop in seconds. Also the reason the heater core hose below the oil filter fails so much. Onetration of oil into rubber breaks it down).
Wouldn't want the coolant hose at the back of the TB to fail... thats a bitch to get at.
Sean Cathcart
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