bingo2

FNSWEET is like this site except it is for people that own or are interested in Roush cars. They do have a "Parts for Sale" section but, they are not a parts seller. Typical boost level on a stock Roush 427 is 5 to 6 PSI. If you replace the stock pulley with a 2.57 you may see between 7 and 9 PSI and the change will require a retune. And, the pulley change will void the Roush warranty. Again, I encourage you to use the search function on the FNSWEET site, there are probably 15 threads relating to the questions you are asking.

evotwostang

witch sct tuner do we get for the mods we wanna do . o and hes wanting to put some gears in it too.

muzzy

Call JDM Engineering ask for Jim 732-780-0770. Take a look at the web site. They can send you a tune. They are saleen and roush exsperts. Do nothing until you talk to them.

Simon1

What you can do is Google speed shops in your area and then start checking the websites and/or calling them. Ask them specifically about how many S197s Mustang they have tuned on their dyno and the results they got. There are alot of people who have dynos and think they know how to tune cars and don't. A little online research and speaking with the people in person should be enough for you to figure out if they know what they are doing or not.

Diablo has a list on their website and I beleive SCT does also.

If you are in Sebring, FL, I know of a tuner there (note sure how close he is to you in Florida) that is very good. He gets in magazines, is flown around the world to tune and he can work on any late model muscle car. After all of your mods you will find that a custom tune will do more and be more important than the parts you throw on the car.

If you are interested, send me a PM and I will give you his info. What the tuner charges is the same as anyone else.

evotwostang

no do these tuners tap into the factory ecu with a laptop and do the tuning that way or is it strictly with the sct tuner?

Nuke

Unless you buy the software and hardware made for the experienced tuner, I'd leave the tune to the shop. The SCT and the Diablo only store stock and custom tunes so you can download/upload. They DO allow you to change some minor parameters but the real nitty gritty parameters are not user adjustable unless you go beyond the likes of the SCT Xcal or the Predator handhelds.

As stated earlier, you need to research more. It's obvious you haven't based on your questions and you're setting yourself up for some expensive disappointments.

evotwostang

were not gonna go super extreme with the car jus a pully and a full exhaust and maby some gears. will i need to go with a colder plug when i put the pully on?
O i i been looking at the pullys and been finding differant sizes but they all say there gonna give the same amount of boost. we are realy wanting to get the most boost we can on pump gas.
i am doing a ton of searching and learning little by little, but every little bit of info i can get will help..
this whole supercharger and mustang thing is all new to me i been doing evos for 5 years now. and i know them cars inside out.

evotwostang

i have only found 2 pullys where can i go to find a bunch of them!!! like differant stages or whatever.

evotwostang

anyone

Flatline1980

read read read..lol.. look at all your options before making a buy.. thats my suggestion.. key is to research..