North American Turbocoupe Organization



Semi- streetable weekend driver... 3.73 or 4.10?
svo_thunderchicken Offline
Senior Member
#1
84 5 speed.. geting a ranger roller and a fresh 8.8 rear end... which gear should i put in it? 3.73 or 4.10... be a weekend car, but do some driving at aorund 70 mph at times....
84 TC Silver 5 speed - PE EEC, Big Vam, RR cam, 35lb injectors, E6 swap, T3 60 Trim, 87-88 intercooler and hood, BOV, K&N Cone Filter *under constrution*
http://www.cardomain.com/ride/2298891/1

87 TC Black 5 Speed - Stock IHI, BCS Bypassed
http://www.cardomain.com/ride/2390431
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RDOG Offline
Posting Freak
#2
IMO, I would go with 3.73's. I tried 4.10 and hated it on the freeway. Thats just my 2 cents
1986 Turbo Coupe. Boport StageIII head, Boport 2.1, Performance Techniques 50 trim hybird, StageII.63, stinger 3" exhaust, Phenolic spacer, Boglog header,NPR FMIC intercooler setup, kirban fpr, bigrmotorsports fuel rail, diablo water meth kit, CAI, remote mount TFI, CHE rear adj control arms, MAC girdle, 8.8 rear disc, aluminum drive shaft, H&R lowerings springs Tbird Turbo Specific, y MAS!!
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Glenn 88TC Offline
Posting Freak
#3
I would stick with the 3.55's
NO TC and NO headaches.
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Thndrchckn420 Offline
Senior Member
#4
Quote:Originally posted by Glenn 88TC:
I would stick with the 3.55's

I second that. I love my 3.55s. Had the 3.73 in the last TC, and there was no reason to use 1st gear. I have the 4.11s in my E-350 Pwrstroke, and the engine isnt under enough load to make the turbo worth having. Just my $0.02.
88 5-spd. Precision SC-50 ball bearing turbo, gillis, full 3" exhaust w/ 3- 1/2 crome tip, ported E-6, ported big exhaust valve head, ranger roller cam, Essy cam gear, K&N cone in front of the radiator, gutted upper, knife edged lower, Walbro 255HP pump, Kirban AFPR, Forge BPV, PA Performance 130 AMP Alt...
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svo_thunderchicken Offline
Senior Member
#5
3.55 it is :-) thanks boys... :-) is the 7.5 stock to 8.8 with disc brakes swap going to be worth it? hehe or should i keep the lighter weight 7.5/// and transfer the brake parts over. :-)

[This message has been edited by svo_thunderchicken (edited 10-25-2005).]
84 TC Silver 5 speed - PE EEC, Big Vam, RR cam, 35lb injectors, E6 swap, T3 60 Trim, 87-88 intercooler and hood, BOV, K&N Cone Filter *under constrution*
http://www.cardomain.com/ride/2298891/1

87 TC Black 5 Speed - Stock IHI, BCS Bypassed
http://www.cardomain.com/ride/2390431
Reply

martin0660 Offline
Posting Freak
#6
I beleive your 84 should have a 3:45 gear in it now, if you want more, a 3:55 isnt going to make much of a difference. That said, I really like the 3:55 for a daily driver. I had a 4:10 in my old silver TC and regretted doing it.

I personally dont think the TC disk set-up is really worth the effort.

Bob Myers
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Matt S Offline
Posting Freak
#7
Yeah wish I had 3.55's since all I do is drive on the highway. Dare I say 3.45's?? I really need to learn to work on rear ends so I don't have to pay someone 300 bucks to swap gears.
Sold it Sad*
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Reeve Offline
Member
#8
It is not much work to put in the disc rear. Just get a 5 spd 3.54 disc 8.8 complete and bolt it in. The discs work just fine without any other change to the brake system. I have been involved with two such swaps and in both cases (78 fairmont power brakes and 80 Capri manual brakes) it has worked perfect. I don't know if you will need to adapt the brake line but I think it will take an adapter. Mine required a brass fitting from autozone and a short piece of hard line.

------------------
1988 TC IHI POWER [email protected]
1980 Capri RS turbo EFI [email protected]
1988 RX-7 Turbo II
1988 TC stock for now
1980 Capri RS turbo [email protected] broken
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svo_thunderchicken Offline
Senior Member
#9
well im geting a rear end this weekend, either im going to use it in my bird, or he has a project car he will use it in... complete with brakes...
84 TC Silver 5 speed - PE EEC, Big Vam, RR cam, 35lb injectors, E6 swap, T3 60 Trim, 87-88 intercooler and hood, BOV, K&N Cone Filter *under constrution*
http://www.cardomain.com/ride/2298891/1

87 TC Black 5 Speed - Stock IHI, BCS Bypassed
http://www.cardomain.com/ride/2390431
Reply

Thndrchckn420 Offline
Senior Member
#10
Id use the 8.8.
88 5-spd. Precision SC-50 ball bearing turbo, gillis, full 3" exhaust w/ 3- 1/2 crome tip, ported E-6, ported big exhaust valve head, ranger roller cam, Essy cam gear, K&N cone in front of the radiator, gutted upper, knife edged lower, Walbro 255HP pump, Kirban AFPR, Forge BPV, PA Performance 130 AMP Alt...
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