North American Turbocoupe Organization



New Buildup ( gotta a few ?'s)
grevels Offline
Junior Member
#1
Ok, started the build today on a 86 TC motor. Have an E6 exhaust with IHI turbo. Got it all hogged out just need to do the finish sanding on the inside. Gutting the upper intake and knife edging the lower tommorrow. Just have a few questions regarding build because I am new to 2.3 turbo setups. I plan on running a ranger cam with rollers as soon as I can find one resonable priced.

As far as the exhaust manifolds, the gaskets have a bump along the sides of the port. Can I smooth this bump out and make the port round and just remove the excess from the gasket to improve flow?

Will the IHI boost to about 20PSI (If I can't get 20PSI I will switch to a larger turbo)?

What is a good headgasket for the 20PSI?

Has anyone used the total seal rings and are they worth the extra $?

With the stock computer on an 86 auto can I switch to a larger VAM with the mods without any MAJOR issues?

Will the computer work with an intercooler? I have a stock one from an 88 TC but was thinking of using a larger front mouted one.

The car will not be a daily driver but it will get driven a few times a week. I haven't decided on whether to keep the 86 TC because it is kinda rough or do a install in a pinto, any thoughts. I'm not looking for a certain HP just going to build it the best I can and whatever I get I will be happy with.

Any recommendations would help out greatly and if anyone has ran into problems with a similar build I would appreciate a heads up.

Thanks
Gordon
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Robert Camp Offline
Posting Freak
#2
Can't answer much but as far as the VAM, you need an '87 or '88 computer with the larger VAM. Intercooler is fine with the '86 computer.
Robert Camp
'86 Medium Regatta Blue TC, 5-speed, original owner.
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shays88tc Offline
Senior Member
#3
i've read that the IHI is good up to 17-18 psi, it spools quick because of the smaller size but it runs out of ooomph on the top end. The t3 can be boosted to 20-22 psi but doesn't spool as fast as the IHI, still a good upgrade. I know there is a debate to which head gasket is better, the felpro 8993 or the 1035, but as far as i know the 1035 is a tougher gasket than the 8993 but the 8993 is cheaper and good to atleast 300 hp. Correct me if im wrong. Another good mod would be if you get the large vam put a K&N cone filter directly on the VAM or better yet plum the K&N in to the side fender or up closer to the front of the car by the radiator or something.
Completion Date: Quarter to never..
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turbotbirdguy79 Offline
Senior Member
#4
Yeah,The IHI is not really good at anything higher than what shays88tc said.The headgasket can hold alot,There are guys running LOTS of power on the 8993.Boost dont kill the gasket,detonation does.I would throw a T3 on it if your budget allows,it can take you far and makes a great street turbo.As far as the manifold goes,I dont see why you couldnt smooth out the bump in there,I did and just gasket matched it to the gasket between the turbo and manifold.A fresh tune up and tune can take you a long way too.Just make sure that you get a bigger fuel pump before getting to deep into anything because the stock pumps can barley keep up with stock boost.Hope I helpedSmile
1988 Tc,SC50(.63),Bosch BPV,Coolingmist methanol injection activated at 10 psi,FMS big valve 1.89/1.59 head,a234,ported E6,ported lower and upper intake,Gillis,3"downpipe,3"exaust,Kirbin AFPR,255 HP LPH pump,Racer Walsh adj cam pully 2* advanced*,K&N cone,MSD Blaster,autolite 103 plugs,T5 swap,3.73s,shifter,Centerforce stage 2 clutch,motorcraft tuneup.
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Import Killer Offline
Senior Member
#5
If you go with a ranger roller and IHI, you will make good low end power. You'll probably shift at about 5000rpms and spool up with be quick. The T3 with a good high end cam will make power well up until red line. If you did the IHI, ranger cam, larger vam and computer, exhaust, K&N, and boost valve, you should be happy with the power. If you want more, a more agressive cam and T3 is a must.
1987 Turbocoupe
Painted sonic blue pearl
Ground effects w/S351 wing
17x9 Chrome Cobra Rs
255/45/ZR17 Kumho 712s
KYB suspension
MOMO shift knob and boot
K&N cone air filter, Gillis boost valve, T-3 turbo, ported intake and E6, A237 roller cam, MSD coil, Kirban FPR
Full 3" exhuast w/Ultra Flo muffler
Brute force clutch
White faced indiglo gauges
2 12" Rockford Fosgate subs and amp
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shays88tc Offline
Senior Member
#6
im drooling over a t3/t4 setup Smile
Completion Date: Quarter to never..
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Gulfdiver Offline
Senior Member
#7
Quote:Originally posted by shays88tc:
im drooling over a t3/t4 setup Smile
Same.. I'm saving my pennies for the t3/t4 w/ceramic ballz as my desert when I get some of the other mods done.. I've got a big/easy network/computer job coming towards the end of the year that will give me my play money for the turbo.. I can't wait for Thanksgiving(ish) (maybe sooner) !!!!!
!!!!! MINE ALL MINE !!!!!
1988 TBird Turbo Coupe Mach 1 Special Edition
K&N airfilter; Spec Stage 3.. More mods to come!
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shays88tc Offline
Senior Member
#8
they have them on ebay cheap..this ones $329 buy it now ..its advertised for the turbo coupe, says it can make 25 psi easily.

http://cgi.ebay.com/ebaymotors/T3-T4-hyb...7996QQrdZ1

it's gotta be a rebuild for that price. i've heard some people have got shafted by ssautochrome sometimes though.
Completion Date: Quarter to never..
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Pete D Offline
Administrator
#9
Quote:As far as the exhaust manifolds, the gaskets have a bump along the sides of the port. Can I smooth this bump out and make the port round and just remove the excess from the gasket to improve flow?
Are you talking the gasket that yo think goes between the manifold and the head?? If so don't use it. The turbo motors didn't get that gasket from th efactory and if you use it there is a high likely hood you will be poulling th emanifold to remove the remanents of it.

Quote:Will the IHI boost to about 20PSI (If I can't get 20PSI I will switch to a larger turbo)?
It will but it will also be out of it's maximum efficiency zone. Your 86 originally came with the larger T3. Also the name of the game is "air flow", not "how much boost can I run"

An IHI running 15 psi is not moving as much air as a T3 at 15 psi is not moving as much air as a T3/T4 at 15 psi.

Quote:What is a good headgasket for the 20PSI?
There are a lot of good ones. As was already said, boost doesn't blow gaskets, detonation does. Start cheap and runn the 8993. If you blow a couple tuning it, so what. When you get it dialed in, then you won't need to change it and you can still run the cheap gasket

Quote:Has anyone used the total seal rings and are they worth the extra $?
I only got 20K on them, ask me in another 100k

Yowill probably want to move to a large VAM but you will need a computer that was programed for it
Pete Dunham


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evintho Offline
Senior Member
#10
Quote:Originally posted by shays88tc:
i've heard some people have got shafted by ssautochrome sometimes though.
Not sometimes, just about everytime! Stay far, far away from ssautochrome! The compressor housings on ssautochrome turbos are actually glued together! They rebuild them with inferior parts and shoddy labor. If your lucky, it'll last a month. Do a search on www.turboford.net and see what everyone has to say. You don't want anything to do with ssautochrome!!
Trust in the Lord with all your heart and lean not on your own understanding.
Proverbs 3:5

1986 Turbocoupe 5-spd - New daily driver!
1988 Turbocoupe 5-spd - parts car.
1989 Mustang convertible (Thunderstang). Built '88 TC shortblock, head by Boport, R/R, T3, Bobs log, gutted, rotated, ported mannys, AFPR, LA3, NPR I/C, etc.
Check out Thunderstang!
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