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edb2007
01-20-2007, 11:37 PM
I have been a member of www.allfordmustangs.com for awile now and most of them tell me that the SC from the thunderbird is inefficient and would be a waste of my time to install...

So i figured instead of talking to people who dislike the supercoupe... talk to people who specialize is them...

Ok lets get down to business....

1995 Ford Mustang 3.8

What differences are there betwene the SC's on the thunderbirds?
good-better-best
year to year
main change
boost ratings

edb2007
01-20-2007, 11:39 PM
Also...

What differences are there betwene the Supercoupe Motors?
good-better-best
year to year
main changes

TwoToneThunder
01-21-2007, 12:01 AM
the motors are basicly the same the 94 95 has a better supercharger on it not to much different

x182dan
01-21-2007, 02:17 PM
your better off getting a supercoupe motor since it has lower compression and better parts in it then a normal 3.8 the heads are supercoupe specific and flow better. I'd just find a decent running supercoupe motor and put that in there complete from intercooler to wiring harness. I can't see you being able to run much boost on a 3.8na motor

edb2007
01-21-2007, 02:46 PM
your better off getting a supercoupe motor since it has lower compression and better parts in it then a normal 3.8 the heads are supercoupe specific and flow better. I'd just find a decent running supercoupe motor and put that in there complete from intercooler to wiring harness. I can't see you being able to run much boost on a 3.8na motor

ok matt from delk runs 12 or 13 psi through his 95 block.... pushing 700 horses!!!

anyways my friend just slid his SC into a telephone pole the other day. I will be buying the whole car from him for $400. its a 1989 auto. still runs and drives. but we just got snow this morning so without a rear window and qtr window it might be chilly hahah. anyways im thinking of getting that and selling parts off it, but pulling everything i need first. thinking if i pull the motor might rebuild it before i throw it in.

do you know what i all need to do to put a 89 motor into my 95?

If i have the complete motor will it just bolt right in??

do i have to change some wiring harnesses??

what wires on the harness do i need to lengthen??
i know its like the MAF and some Injectors...

do i need any computers?

what type of rear end is in the SC... i know mines a 7.5 with 3.73's... not posi trac tho..

where can i go to get my supercharger rebuilt and ported.

what differences are there form the 89 vs the 95 supercharger?

would it be a hassle to get a 95 and c hange it out?

V6Sprout
01-21-2007, 03:20 PM
SC heads flow better? Neve rheard that they are the same heads but the SC heads have less cooling jackets so they are stronger cause they have more meat onthem, but the runners should be the same as a NA head.

As for the mustang motor, its has a higher compression so it will make more power witht he Mustang rods/pistons, but the SC bottom end (crank/block) are much stronger thus better.

Currently I run a 97 Mustang block with the Supercoupe blower and net 200 RWHP 332 RWTQ, )10% OD on blower, plus SCI underdrives) stock open diff rear end with 273 gears and slicks I ran a 14.0 at the trtack with a 1.88 60ft. Once I get my t-lok and 373 gears installed ( the 8.8 rear end is ready to go in) then I should get mid tolow 13's on a basically stock setup.

Since you can get the entire motor, thats a bonus, the SCT xcal with a tune is only $400, Justin over on V6Power has tuned MANY SC swap mustangs, so he can get your real close right away, he did mine.

Can't go wrong for the money spent.

If you need help with how to get everything setup ont he Mustang let me know.

edb2007
01-21-2007, 04:08 PM
thanks man... i will need alot of help... but first im going to tear into the motor and rebuild it

white95v6
01-21-2007, 08:33 PM
do not use the 89 SC wireing harness in the mustang.:rolleyes: just extend wires swap sensors. and a few other things.

the Mustang engine is not as strong as the SC engine as said above(stock parts).

i run a 95 stang Block with good internals. not stock. i also run alot more then 12-13psi.

and the M90 is limited to a point in hp potential. soo you better decide what kinda power you want to make. cause much more then 450rwhp and the M90 is DEAD.

edb2007
01-21-2007, 09:15 PM
do you think i should use my block or the SC block?

what type of intrnals do you have?

does anyone know where to get a milled crank... if im going to do the bottom end im going as strong as possible...

would i have any issues with using a 4.2 crank???

i know the eaton is limited but ive heard upto 500HP. When and if i get to that point i will trade the eaton for a P&P split port heads and intake, larger centrifugal SC... maybe turbo... but thats for after im out of college!

Thomas
01-21-2007, 11:08 PM
supercoupe heads deffinetely do not flow better. The port design and bowl design are both identical SC to NA. The deck is thicker though, and they are stronger...than NA heads of those years. But 96-98 NA heads are the same thing.

Matt running 12-13psi? hahaha.

If you want to make good power, the M90 is not your 'efficient' route, per say. But it is a start I suppose. You might consider a bigger blower or a turbo though. But you can easily hit 13's with a mostly stock SC engine in a mustang, no problem.

-Thomas

Thomas
01-21-2007, 11:11 PM
do you think i should use my block or the SC block?

what type of intrnals do you have?

does anyone know where to get a milled crank... if im going to do the bottom end im going as strong as possible...

would i have any issues with using a 4.2 crank???

i know the eaton is limited but ive heard upto 500HP. When and if i get to that point i will trade the eaton for a P&P split port heads and intake, larger centrifugal SC... maybe turbo... but thats for after im out of college!

More to add...

Matt is running Forged I-Beam rods, Forged 8.2:1 pistons, a CAST 4.2 crank, stock stud girdle, and I believe .030 overbore. Sounds like a weak combo but obviously it holds 28psi so it can't be too bad, right?

A milled crank? You mean a custom billet one? $$$$ you're looking at about 2000 dollars for the crank alone.

Like I said earlier, Matt has a cast Ford 4.2 crank, so it seems they can take some abuse.

If you're going to do this entire swap just to change it completely in the future you are wasting your time. You're better off getting a split-port engine with ported heads, intake, and a cam to start off with. That will net you about 220rwhp and 14's in the 1/4mi. If you want more after that, put on whatever power adder you want to get more.

-Thomas

white95v6
01-21-2007, 11:29 PM
oh man. like thomas said. i have I beams. and forged pistons. but i Do not have a stock stud girdle. i have one thats alittle better then a stock ford girdle. but not much lol.

umm they say the 01-04 blocks are the best. mine has held up soo far. thats all i know for sure.

why would you Mill(turn) a new crank? cause i would start with a new crank. cheap and easy.

also why in the world would you build a combo. then swap the heads intake and power adder. it has been proven that the single ports can and Do make sick power.

good luck makeing 500rwhp out of a little M90.

Payton
01-21-2007, 11:36 PM
But you can easily hit 13's with a mostly stock SC engine in a mustang, no problem.

-Thomas
I ran 13.67 with mostly stock SC engine in a T-Bird SC, which is a lot heavier than a stang.

white95v6
01-21-2007, 11:45 PM
That will net you about 220rwhp and 14's in the 1/4mi. If you want more after that, put on whatever power adder you want to get more.

-Thomas


with 220rwhp you better go 13s easy.

Thomas
01-21-2007, 11:47 PM
whats his name, slvr03stang or something. He went 14.1 with 220rwhp. Not many people in the 13's NA. Didnt you go 12's NA matt? thats crazy.

white95v6
01-21-2007, 11:50 PM
whats his name, slvr03stang or something. He went 14.1 with 220rwhp. Not many people in the 13's NA. Didnt you go 12's NA matt? thats crazy.


Kirk would have went 13 Easy. he just didn't use the Footbrake. he was trying to win a bracket race. his car went 14.1 leaveing the line at Idle.

more then a few have been 13s Na. two have been 12s. and one has been 11s.

V6Sprout
01-21-2007, 11:52 PM
If Kirk can run low 14's on 220 rwhp and low torque( compared to the SC) then 220 RWHP on a SC motor will run 13's EASY!!!!!!!!!!!! The SC motor gets way more TQ. Heck I am gonna run mid to low 13's on 200 RWHP, a littl emore and I may run 12's.

squirt295
01-22-2007, 11:09 PM
was wondering how your coming along with this swap? im in the process of buying a sc to throw in my mustang, and would like to know how difficult it has been an what all tips ya had to give... thanks in advanced

edb2007
01-23-2007, 12:20 AM
well i looked at the car for the first time sence the accident today... its bad... but the motor and tranny are perfect... he said the first 400 takes it and im going to get it friday and then pull it to my house..... there i will park it until i get a cherry picker and motor stand... then I plan to put the motor into my garage and start tearing down, rebuilding and upgrading!!!

well anyone need some parts its a 1989 automatic w/140,000 miles, has black interion "MINT" and white exterior "all needs paint" has everything to sell except

motor
drivers qtr panel
passenger qtr panel
drivers qtr window
rear window
roof assembly

and some misc. electronic parts i might need for the swap

very cheap!!

anyways i guess the SC was just rebuilt like 2000 miles ago and thiers new Plugs, wires, battery, tires, comes with 4 extra NEW tires, JBL sound system!!

edb2007
01-23-2007, 12:22 AM
just wondering what EXACTLY must I do to install this...

be prepared for everything!!

want it to be a weekend swap when the motors done

edb2007
01-23-2007, 01:35 AM
sorry one more thing....

what exactly is in the stock SC engine for internals?

Crank?
Rods?
Pistons?
Cam?
Springs?
Rockers?

Mike8675309
01-23-2007, 09:27 PM
forged crank
hyper cast pistons
forged i-beam rods
pedistal mount rockers

edb2007
01-23-2007, 10:06 PM
well im going to see if i can pull the motor this weekend.

i figure i get it home friday, jack the front end up and take out the motor mounts and the bolts on the flywheel.

as far as i can remember those are the only parts to un undbolt under the motor besides some hoses and some electronics.... right? well thats how the stang was, as far as i can remember... ooh and the starter!!

thursday i get a check coming in so i will buy a motor stand and i think im going to borrow a friends cherry picker.

seawalkersee
01-23-2007, 10:17 PM
First off, check over on www.V6power.net with some of the guys who have done the swap. Search for car2oon (I think that is how he spells it) and some others like Jamie (v6Sprout). You will HAVE to lengthen the wiring harness from YOUR car to fit the SC. You will have to use the Stang IAC on the SC engine as well. The exhaust will be from your car too. I am not sure about the tranny yolk so I would check it out before you get too far into it. Remember that you SHOULD (and may have to) have it tuned before you drive it too far. If you lean it out and split a piston or two, you will wish you had spent the chump change to fix A LOT of work.

Chris

Mike8675309
01-23-2007, 10:23 PM
One more important difference. SC motors are internally balanced. That means zero balanced flywheel/flexplate, and zero balanced balancer. This is unlike the other 3.8 motors of which many are externally balanced, and many use a balance shaft. (SC motor has no balance shaft)

edb2007
01-23-2007, 11:52 PM
One more important difference. SC motors are internally balanced. That means zero balanced flywheel/flexplate, and zero balanced balancer. This is unlike the other 3.8 motors of which many are externally balanced, and many use a balance shaft. (SC motor has no balance shaft)

what do you mean? so unlike the 3.8 in my stang they actually balanced it???

crazy i thought they just threw a combo in and let it fly...

well i dont think it matters because im replacing the rods and pistons... then i think ill get it balanced again anyways...

Roadhawg
01-24-2007, 06:52 AM
First off, check over on www.V6power.net with some of the guys who have done the swap.

Chris

There are atleast 5 of us on thst site who have done a SC swap on the Mustangs.


Todd

Scott Long
01-24-2007, 06:52 PM
If you tear the engine down to rebuild it, the SC crank is forged so you're good. Get some forged rods and pistons if you want, you can go up to 9.0:1 compression and make a bit more power just make sure to tune for it.

Also the stock M90 Supercharger on the early models is junk. Magnum powers takes it and cuts the back of the case off, and puts on a new rear section with a wider port, a matching inlet plenum, and ports the top side (outlet) of the blower as well. If you got a Magnum Power MPx blower on there with a custom Front Mount IC, and some 50 lb. injectors, 255lph forced induction pump, ported the heads and installed bigger valves, and put in a cam, you'd be over 300 rwhp. Also you probably need to use the mustang exhaust manifolds since the sc ones may or may not work, I'd recommend some MAC headers since they are cheap and flow better than stock manifolds. Run a 2.25 or 2.5" into a resonator, 3" back, to 2.25 or 2.5" exit. Mufflers optional.

I've always wanted to do this swap.

The rear end in the SC won't work, its only a center carrier and yours is a solid axle. Your best bet is to get an 8.8" out of a similar year GT from the junk yard. Put in 3.73's, 31 spline axles, and aftermarket control arms, and be done with it.

V6Sprout
01-24-2007, 07:20 PM
If you use the SC motor you can use the SC flexplate and either a 94-95 SC balancer or a 4.2 truck balancer. Mustang tranny bolts up no problem to the motor.