well i'll get right to it i have a 93 cobra all stock except the K & N air filter and the wheels . I'm looking to do a few basic things to it to get a little more power out of it. Later down the road i'll be putting in a 347 and possibly a super charger and was wondering what would be the best things to do as far as up grades that will work on the stock engine and possibly with the 347 and the super charger i dont want to buy the stuff twice if it will not work on both the 302 and the 347 . If you could help me out and give me some ideas



THANKS

 

Check with these guys in the 302 engine forum.

 

The best things you can do are to add exhaust, gears, and a cam. The 93 cobra already has pulleys, 1.7rr's, gt40 style intake and heads. However the cam is smaller than that of a standard HO cam. You could come near 300rwhp with these mods and some tuning.

 

Yeah as Jimbo said those are the things you really can do that will go to the next motor except the cam part. You may also wanna goto 31 spline axles and think about a different trans. You never said if it was auto or stick.

Any other type mods I'd just hold onto the money til your ready to shoot the moon. And you'll never be 'done'. Welcome to my world.

 

very doubtful you will see 300 with a cam swap, etc...

best bang for the buck is nitrous. safe and reliable when used correctly, even with your pistons.

a set of afr 165 or 185's would do wonders. is s/c is in your future look into the 185's (you will have to flycut your pistons).

i made 460 rwhp in my old 92 with stock t5. replace with a 3550 only because i got a montster deal. you have a t5z which is stronger than standard t5 for an ho.

 

Hey hey! a fellow Cobra owner! Mine's a 94!

Hey as far as a Cam, a lot of us including me run a Crane 2031 (.513/.529 lift, 276/280 dur.), but you can run a more aggressive setup, your computer is more forgiving than a newer one. Get your lower intake ported by Tom Moss (http://www.tmossporting.com) very well worth it.

All bolt-ons will work with 302/347, the block is the same except for the notching for the crank clearance.

I'd recommend a full exhaust, longtube headers to either a Dynomax, Flowmaster, or Magnaflow catback, and add some 3.73 gears to get you started for now. These are the best Bang-for-the-Buck mods for starters on a 'Stang. Oh, and take your pick of a pro-5.0 shifter or a Steeda Tri-ax shifter, either will save your T-5 from missed shifts. Your tranniy isn't a Z-spec t-5, it's a Cobra spec. Same as any other WC T-5 but with a larger pocket bearing and phosphate coated gears.

Last but not least, check out www.svtperformance.com and www.corral.net there's a wealth of experience and info there. Enjoy!

 

I am building a 4-eyed fox body with a 408. The best thing that you could do is go ahead and save for the 347. You could move up to 31 spline axles but until you know what kind of power you are going to make and what you are going to do with it (daily driver/track car), you won't know what kind of gears to run. You could go ahead and get a Vortech Supercharger but if you are going to put it on a tired 302, you are going to have a good deal of leakdown in the cylinders.

The best thing to do is to decide what you want to do with the car, build an engine that will get you there and then beef up the other components eg. transmission and rear to get the power to the ground.

 

You should do a little research, there are plenty of folks coming near 300rwhp with a GT40 package and a custom cam, I know of a couple that have exeeded that. Besides I said close to 300. 270rwhp is very possible with bolt ons and an FTI or other well chosen cam.

And I agree, nitrous, superchargers and expensive heads will make great power on anything.
As far as the T5, I am leary of running one behind a stock motor.

 

1. Gears and exhaust. 3.73 gears and full length exhaust. Both will work with the 347. May be a good idea to upgrade the axles at this point but you should also consider a better differential.
2. Head cam intake swap. AFR 185's and port the Cobra lower intake to match heads. You are already setup for 24 lb injectors in the cobra so fuel will not be a problem.
3. 347 stroker. Invest in a quality kit with forged pistons. May have to upgrade to 30lb injectors and a compatible mass air system. I highly suggest a 331 stroker.
4. Supercharger if the 347 is not enough power.
5. Suspension upgrades. These can be done as you go (some may argue that these should be done first) but if you're gonna have that much power, you need to get the traction to the street.

 

full exhaust, 3:73 or 4:10, or if money is there a 11lb procharger system. those gears and exhaust will feel like a lot.

 

jimbo, don't tell me about things you've read on the internet. close to 300 is not 270! find me a cobra that installed a cam and exhaust that makes nearly 300rwhp in a street car.

i've done my research. i've had numerous mustangs and raced all of them. been on the corral since the beginning so don't tell me about things you've read there.

i've owned 4or 5 different superchargers, couple of nitrous kits. i've personnaly owned L heads, x heads, c9oe, d0oe, c5ae, holley heads, windsor sr heads, and afr 165 heads. i've built numerous smallblocks. my info is from experience not hearsay.

so 514 listen to jimbo, throw a cam in it and tell everyone you make near 300rwhp.

i srry if i seem like an ***. i got my 1st ford truck a year or so ago and tried to get info. found this site and figured i could give a lil help in the 302 351 forum then i see numerous guys who have no clue what they are talking about.

 

We're all free to agree or disagree with each other, but there's no need to take it to a personal level...we can all play nice here!

 

You are almost wound too tight for living Rob. I should apologize if you misconstrued my post as derogatory or misleading. I made no reference to things I've read on the internet and only know what I have experienced personally, as those are the only facts a person can ever truly believe. I am glad you have such experience and impressive credentials. I, myself have only been playing with these cars since 1992 or so. Always remember Rob, just because you haven't done it doesn't mean it can't be done.
I put together a little 290rwhp 302 with Ford heads earlier this year, not huge numbers but a neat/cheap motor.

f150_514ci: That said, my comment was meant to represent the high end of a GT40/custom cam combo. I have also seen very big results from stock head setups. Most people will go with a bolt on aftermarket H/C/I package for a very easy 300+ rwhp. However some folks do build some pretty stout near stock motors with the right mods and show impressive results as well.

 

An excellent resource is allfordmustangs.com for anything ford mustang.

 

WWW.STANGNET.COM

Brandon