I had the Roush 625 hp upgrade installed on my 2011 automatic. Dyno'd on a Mustang dyno in 3rd gear , on a day with a heat index of 104 and dyno'd 439 at 5000 rpms. I wanted the Roush tune cleaned up; better throttle response, no more discolored tail pipes and more safe power.
I spoke with...
#1 Using an example of 625 crank hp on an automatic. I know there is a 20% reduction ; so 625 crank theoretically becomes 500 rwhp. Does a 3:31 gear ratio reduce that rwhp or does it have any affect at all ?
#2 I've been told a Mustang dynojet reads lower than a dynojet; if so how much lower...
Corsa xtreme ABs- $500.00 ($825.00 new)
Corsa X pipe - $150.00 ( $275.00 new)
Local sale preferred; shipping negotiable.
Sounds great but this is my company car.
PM me.
Terry
I bought my 2011 GT automatic with the plan being to eventually adding the Roush TVS, rims /tires and suspension set up giving me the mechanicalls of a Roush stage 3. I have the Premium GT pkg with *accessory 5 pkg. I added 3:73 gears courtesy of TERREBONNE Ford. I spoke with Joe Mitts at Roush...
5.0 auto with Procal tune , drop in K&N, 3:73s, Corsa xtreme AB and X pipe.... would Cobra rear lower control arms be a good mod? Planning to add a Roush TVS this spring.
Just for the hell of it I called FRP and inquired about the Ford SC on an auto.The reply was " they offered it up to 2010 and there was not enough demand to warrent the programing". I guess they don't read these forums or they are not listening to us the customers or do not realize how many...