Cobra engine swap write-up
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Old September 25th, 2009, 01:10 PM   #1
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Cobra engine swap write-up


Alright well i blew up my 98 GT motor last October and im finally get my money straigntened up to get this b**ch rollin. I just bought a 96 cobra block, bored .030 over and heads. I am pretty new at write-ups but i will try and keep you guys posted and put as many pics on here as possible. The plan is to have this done by April 2010. So far i have removed the busted engine and exhaust to make room for the cobra engine and some long-tube headers. I also removed the rear seat, brackets and seat belts to help trim some fat. I am also planning on s/c it too with an Eaton M119 s/c and possible intercooler. I will be getting the engine later next week and i will post pics of it then along with some of the car, although remember it has been sitting awhile so its pretty sad looking. I do have a few questions for those who know there s*it. If im going witha s/c what do you think is a good compression ratio? Im planning on going forged internals, most likely manely pistons, rings and rods. I see that they have 11cc dish, 18cc dish and a 15cc dish. Which should i go with? Second question is, how bad is it to replace driver and passenger windows? Can it be done with one person? My gay ex-step dad got pissed at me and thought it would be a good idea to smash them both out with a pick ax. I will also post the wish list of parts im plannin on going with this weekend.
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Old September 25th, 2009, 03:08 PM   #2
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wishin


Alright well it's friday and i really don't want to do any work today, so here is the wish list for the car. Im almost positive im missing some stuff. if you think i am let me kno thanks

Engine:
Stage 2 comp cam
adjustable cam gears
Steel crank shaft
manley pistons,ring,rods
msd coils
msd 8 mm spark plug wires
eaton M119 Supercharger + intercooler

Exhaust
BBk longtube headers
bbk hi-flow cats
Not sure what cat back system to go with...

Drivetrain
t-56 6 speed tranny
spec stage 2 clutch
spec aluminum flywheel
pro 5.0 shifter
aluminum driveshaft
Money and time permitting 3.73 gears and limited slip diff

Suspension
UPR tubular k-member
Upr front control arms
UPR coilovers
MM CC plates
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Old September 25th, 2009, 06:42 PM   #3
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ummm ecu tranny mount & wiring harness
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Old September 26th, 2009, 04:26 PM   #4
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Rear suspension? Better brakes?
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Old September 26th, 2009, 04:29 PM   #5
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Use a compression calculator to figure out what you will get from each piston size. You'll need the head size and cylinder bore size as well as a few other variables. Generally the larger the dish the lower the comp ratio. If you are going s/c then you will want a lower ratio than n/a. Generally folks try to shoot for 8.5-9.5 for supercharged applications.
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Old September 26th, 2009, 04:35 PM   #6
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I've got a spare passenger side window if you need one. Just pm me if you want it.
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Old September 29th, 2009, 10:54 AM   #7
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so where do i find this said "compression calulator"? I'm thinking i want the 18cc dish piston heads and i want to order them this week cuz my valve heads and engine block come in 2mrw and thursday. On another note, any suggestions for a crankshaft? I found a nice one at some website, i'll put up the address once i found it.
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Old September 29th, 2009, 10:57 AM   #8
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here is the link to the crank shaft i found. Ford Racing 96-04 Cobra Steel Crank [M-6303-D46] : Lethal Performance, Performance parts for Ford Mustangs Also there are some nice parts in there for anybody who is looking
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Old September 29th, 2009, 11:15 AM   #9
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Ok i found this cam kit, let me know if you think i should go with this or find something better... Ford Racing FR500 HIGH LIFT CAMSHAFT KIT 96-04 Cobra/Mach-1 [M-6550-T46] : Lethal Performance, Performance parts for Ford Mustangs
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Old October 1st, 2009, 12:54 PM   #10
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Ok well my parts are starting to arrive, i have been busy the past few days so i haven't been able to take pics but i should have time tonight. i do have a quick question... i bought a M119 eaton s/c and im wondering if it's ok to use underdrive pulleys with that or should i just buy oem ones? Thanks
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Old October 1st, 2009, 06:08 PM   #11
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WTF is a M119? and No you don't want under drive pulleys sell them and get some stock pulleys.
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Old October 1st, 2009, 07:39 PM   #12
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Originally Posted by 330CubeGt View Post
WTF is a M119? and No you don't want under drive pulleys sell them and get some stock pulleys.
Sry it's a m90 of an 03 termi engine.

So today my engine block and heads showed up. check out the pics. The heads will def have some machine work done to them. possibly stage 2 port/polish. And some other shit too.

Here are some pics of the heads and block.. enjoy
Attached Thumbnails
Cobra engine swap write-up-engine.jpg   Cobra engine swap write-up-engine2.jpg   Cobra engine swap write-up-heads1.jpg  
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Old October 1st, 2009, 07:42 PM   #13
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heres some pics of the car it's going in... I got a few pics of the front end vag going on and the gutted truck and back seat...
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Cobra engine swap write-up-backseat.jpg   Cobra engine swap write-up-frontend.jpg   Cobra engine swap write-up-frontend1.jpg   Cobra engine swap write-up-trunk.jpg  
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Old October 2nd, 2009, 01:44 PM   #14
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bought a upr tubular chromoly k-member and cc plates will arrive late next week
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Old October 2nd, 2009, 02:09 PM   #15
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$$+$$$+$$$$+$$$$$$= setup
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Old October 2nd, 2009, 02:12 PM   #16
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You can put a 3.4 whipple on it and make some mad power! M90 suck ball.
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Old October 2nd, 2009, 03:36 PM   #17
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ya well ive seen a guy make 450 at the wheels with a 96 cobra and m90 s/c, so thats good enough for me for the money i spent on it... it only cost me $1200 with intercooler, the whipple prob is around $4,500... but ya a wipple would be nice, maybe down the road who knows...
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Old October 2nd, 2009, 10:01 PM   #18
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if it came from an 03 cobra, then it's a m112, not a m90
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Old October 2nd, 2009, 10:15 PM   #19
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oh my bad the ebay listing said m90 but off an 03... shows you how much i dont know lol
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Old October 3rd, 2009, 09:47 AM   #20
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Originally Posted by shadow98gt View Post
heres some pics of the car it's going in... I got a few pics of the front end vag going on and the gutted truck and back seat...
please clean that engine bay before anything goes i it lol. other than that...i LOVE it
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