North American Turbocoupe Organization



SC Engine question!
nick27 Offline
Junior Member
#1
Ok, the "donor" engine has been pulled out of my SC and is headed to the shop to be torn down and rebuilt. What I'm trying to figure out is what is a good combination as far as rods, pistons, bore and stroke, oil pump, heads, headers, and so on for this type of engine. I've never owned a super coupe before and have very little knowledge of performance tips or anything else. What I hope to accomplish is a high to mid 10 second car that will withstand about 15lbs of boost and I'm toying with the idea of nitrious but haven't settled on it yet. Someone said in another post that sc's were running in the 11's so I feel like with enough mods I can get into the 10's. I ordered my GT wheels today new from Ford at $184 each. The tires I'm looking at are gonna run about $700 for the set. I've also got my front end brake parts to complete the 5-lug conversion. I haven't decided yet if I'm goon go ahead and put the rims on it or just try to find some cheap wheels to keep on it until the restoration s almost complete. I hate to spend money on rims I essentially have no intention of keeping but yet I don't want to let a $700 set of tires dry rot from sitting either. As far as the SC engine, I've got about $2500 to work with comfortably and another $500 if I absolutely need it although my wife may shoot me if I use it. Any help or input would be greatly appreciated. I'll post pics of the car as it was when I started in the next week or so. Thanks again in advance.

Nick
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84turbobird Offline
Member
#2
the 11 sec sc's that you heard of are very modded engines.
the sc engine can be bored and stroked up to 4.3L,as for all the parts here is the list i came up with.
pistons-ross racing pistons(.030 over bore)
rods-H beam eagle rods
hi-output oilpump (not sure where to get that)
the only headers i know of for the sc is kooks headers( supercoupeperformance.com)
steigmeyer heads(the best flowing heads avail)
.555 steigmeyer cam,stud girdle, arp mains,magnaport 2 blower,fmic,magnaport inlet plenum,bhj billet harmonic balancer,3.5" intake system,87 mm prom maf,85 mm throttle body,big bore sc top,light weight jack shaft pulley, 3 peice under drive pulley set,10% over drive pulley(for the sc),and a free flowing exhaust,at least 42 lb injector,and a good custom chip
that all i can think of off the top of my head.
the price for all that is probably well over $10,000 and should put you around 375-400 rwhp
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Pete D Offline
Administrator
#3
You might want to contact Bill at Super Coupe Performance, LLC www.SuperCoupePerformance.com
513-697-6501
Pete Dunham


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CaifanSC Offline
Member
#4
There's a few people running 11's on sc's now. One in particular stands in my head because he is a conservative "3.8 SC" type of guy. His name is David Neilbert he has a 91 SC AOD and runs 11.781 @ 119.41 with a shot of No2. His engine is not bored out, its still a 3.8...so to get into 11's there's no need to bore. Even the fastest guy w/o Nitrous is running 11's. The fastest is an sc race engine builder named coy miller with an 11.028 with Nos.
What I would suggest is to go to this page: http://www.sccoa.com/faq/
and check out the fastest/most powerful pages and check the profiles of the people on top. Their mods and parts used should be listed in their member page. That will give u a good idea. As far as the oil pump is concerned, on my 89 im putting a high flow melling pump from summit(Summit# MEL-M-246) for $78. Its a later style pump that flows better. I agree with 84turbobird as far as heads: steigmeyer, MP intake components (Intake tube, TB, Plenum) larger MAF, ported blower, pulley, stud girdle, roller rockers, supercharger top, and IC).

By the way, i almost forgot...it can get REALLY expensive...so if you dont have the means of doing it all at once, start by building the engine in stages. I found taht this link
( http://www.sccoa.com/forums/showthread.p...hlight=300 )
has a great list of what to do by stages...which makes alot of sence. OH, and supercoupeperformance is a great source for parts...but its not the cheapest. Try shopping around before buying parts. OH! and there's a kit coming out to slap in a whipple charger too. So u better start thinking! Desicions! DEsicions!


[This message has been edited by CaifanSC (edited 07-20-2004).]
1993 SC 5.0L Auto Red, 1994 SC 5-speed Teal, 1995 SC 5-speed Chameleon Blue
1992 Feature Mustang Convertible 5-speed Vibrant Red, 1991 BMW 850i 6-speed Red, 1994 BMW 850CSi 6-speed Red
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84turbobird Offline
Member
#5
There is a working whipple setup for sale on the parts for sale forum,it has been tested and there was a video of the dyno tune with the whipple, there is also a turbo setup on the way.
As caiscfan said it can get expensive,and the best way to do it is in stages with the exhaust being the first thing on the list.
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Glenn 88TC Offline
Posting Freak
#6
The SC engine will cost way more to get into the 11's than a 2.3T would. It won't even be close I bet.

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mods: SDS Digital Fuel Injection, ported & polished big valve head(1.89/1.59), Solid lifters, Esslinger roller cam #2277, Esslinger adj. cam pulley, custom upper and ported lower intakes, 60-1 stage III .63 turbo, powerstroke intercooler, 60mm throttle body, 75pph injectors, Walboro 255HP pump, Kirban adj. fuel reg., ATR header, 3" exhaust with Dynomax Ultraflow muffler, MSD 6al, MSD coil, MSD Launch Control, MSD 8.5mm wires, K&N filter, Spec stage III clutch, Greddy Profec B boost controller, Weld Draglites with M/T ET Street 26x11.5/15
NO TC and NO headaches.
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Chuck W Offline
Posting Freak
#7
I'm not a fan of the 3.8's in any form, but it sounds like a neat project.

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Any connection between your reality and mine is purely coincidental..
83 TC Clone, 87 Ranger (soon to be 2.3T), 84 XR7, 80 XR7, 86 XR4
NATO Member
83 TC Clone, 80 Cougar XR-7, 85 Volvo 244 Turbo, AND 88 Scorpio
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SteveX82 Offline
Posting Freak
#8
Quote:Originally posted by nick27:
As far as the SC engine, I've got about $2500 to work with comfortably and another $500 if I absolutely need it although my wife may shoot me if I use it.
Nick

You might want to do a lot more research if you plan on running 10's with only $2500 into a 3.8. Between building the bottom end to handle 500+hp, headwork, an enormous supercharger, injectors / an accompanying means to control the injectors, aftercooler, etc etc, you'll be looking at close to $10,000 to get it all together.

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Estoril blue 1987 TC 5spd, 145k miles, PRofec B, walbro 255, a237, Bailey BOV, rod's header, spearco FMIC, t3/t4 50 trim / stage III .63, full 3" exhaust, eec-tuner, 55pph injectors, wideband, Nitto 555R dr's
Best 1/4 mile: 13.20 @ 108mph on 26psi, 2.16 60'
Estoril blue 1987 TC 5spd, 148k mi, a237, Bailey BOV, spec stg3 clutch, spearco FMIC, 50 trim t3/t4, 3" exhaust, Bamafuel, LM1, 55pph
Best 1/4 mile: 12.31 @ 110mph on 25psi
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Pete D Offline
Administrator
#9
Please, no offense intended, but it would be pretty hard to get anything into the 10s for $2500.
Pete Dunham


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CaifanSC Offline
Member
#10
With the few readings that i've done about 2.3T performance....perhaps it would be a bit more expensive to mod out a 3.8 SC engine. Why? Parts availability...the 2.3T engine is used in Pintos, Tbirds, Cougars...and most importantly...Mustangs. hence the more parts manufacturers = cheaper parts. There's only a handful of parts manufacturers for 3.8 sc's. Nevertheless....a 3.8 sc in a fox body bird...a TC at that...is something to definatelly brag about. I'd say go for it (or i'll beat u too it eventually! hehe)!


ps: that whipple setup is from Gary Kuhn's car...some of you must have seen it in carlisle. It was the red SC with tons of chrome in it and a big NOS bottle in the trunk...a trunk also filled with chromed out stuff.

[This message has been edited by CaifanSC (edited 07-20-2004).]
1993 SC 5.0L Auto Red, 1994 SC 5-speed Teal, 1995 SC 5-speed Chameleon Blue
1992 Feature Mustang Convertible 5-speed Vibrant Red, 1991 BMW 850i 6-speed Red, 1994 BMW 850CSi 6-speed Red
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