So with 14 psi i can add 262 more horsepower already to the stock hp on the GT? How can i pull it at 14 psi???//Monkey said:
Replace the pistons, rods, cams, rear end, tranny, axels, prolly the block, and fuel pump...that would be a good start. The engine might hold up for a little while at 14psi stock, but, you might as well start buying the internals once you get the charger because you will be destroying them eventually. If you get good grip on a hard launch, you will effectively give yourself reason to replace the tranny and/or rear end.StangGt804 said:So with 14 psi i can add 262 more horsepower already to the stock hp on the GT? How can i pull it at 14 psi???//
The stock rearend is fine, but, if he has grip and does grip, it can go away in a hurry. The 03 cobras are breaking everything from the rear pumpkin, halfshafts, and axels when they get good grip after being modded. So, if the tranny doesn't go, and the engine doesn't blow, and you get grip, bad things could happen with that much power at the wheels (assuming about 420 hp at the wheels).Monkey said:the 8.8 is good, but upgrading to 31 spline and getting an Eaton posi would be a good idea. I think he could do on the stock cams though.
If you drive the car hard to where the boost actually kicks in. The internals of the engine aren't forged. They are somewhat strong, but not nearly strong enough for high boost. The compression ratio is also a bit high for high boost.StangGt804 said:So if I you put a kb on a GT with everything stock, its going to start to break if its over 8-10 psi???// Is that what your telling me!!??
With enough boost, you might could get some good distance shooting out a rod or two as well.Black95GT said:With a KB Id only run 9lb, maybe just 6lb until i had a new bottom end, unless you are looking to shoot out a rod.
so true man!!! It seems like now I am not getting a cobra. Because of insurance issues and etc. but I am getting a GT by this weekendMonkey said:dont count your eggs before your hatch your chickens or something. before I bought my evo, I was looking at buying a used corvette. I was even posting on the corvette forum and almost got in on a group buy for a part. But look what I drive now. Half the cylinders and awd instead of rwd. all i'm saying is buy the mustang first, and then research it on how to go faster. you obviously don't know what you're getting. you talk of getting an 03 cobra, and now you're talking of getting a GT.
find out what your insurance would be on those cars before you even buy one. I seriously doubt it is cheap... especially since the mustang GT is the #1 most expensive car to insure (based on an insurance website that polled all cars under $40k excluding bmw's and mercedes, etc) and since i doubt you are over 25yrs old, you might need to worry about insurance.. just a thought.
edit: in fact, if this thread didnt contain much technical information such as the rotating assembly or strength of rear end, etc, i would lock this thread. Stop posting asking us questions on what is the difference. if you want questions answered goto this linkright here and type in your search