3550 is faster natural asp. Do you drive the car on the street? If you go with a C4 get a manual valve boby so you can shift at your best RPM. Bang away its already paid for, wait until it takes a crap then consider your mods and make a decision then.
Pro shifting entails removing the blocker rings and most of the clutch teeth from the gears, and the sliders. First gear is left alone. The trans will no longer be synchronized for easy upshifts or downshifts when you are driving it easy. They work WOT slapping the clutch pedal, and they go straight into gear, no problems. They are great for drag cars that shift at high rpms with high hp.
Swarr auto makes a darn good one.
It all depends on what you consider a race car. I know guys who wouldnt mind daily driving a pro shifted car because of the track gains. Then again there are others who would never think of doing it for their street car, let alone a daily driver. It will provide the best track results, but you can still run great numbers on a non pro shifted tranny.
I would suggest to the average enthusiest just looking to better their track times some, not to go pro shifted as downshifting becomes an issue and has to be learned, and upshifting I have been told will leave a nice clunk into every gear, as the teeth make contact. I would suggest to stay away unless you want the best possible time out of the car and dont mind a more challenging commute every morning!
Yeah, the Gforce unit is a nice one, but the case is still a limiting factor. I have to run a girdle on my Tremec to keep it from seperating, I couldn't imagine how much seperation the gears get under power in that puny T5 case.
I agree, I street drive my pro shifted box, but I wouldn't recommend it. It wears everything too fast. Gear replacement/wear would be accellerated.
I agree, I went in the low tens with my car with an out of the box 3550 before I pro shifted it. With practice and good clutch adjustment/release you can get it into gear easily.
What about a V1.0 or V2.0 Trememc from X2C as compared to the G-force T5??? I am sure the Gforce is lighter and the V2.0 and maybe even 1.0 are stronger, but id it worth it to spend the extra money on the Gforce?
A forum community dedicated to Ford Mustang owners and enthusiasts. Come join the discussion about performance, production numbers, VIN decoders, modifications, troubleshooting, power adders, DIY tutorials, and more!