O.K… Here we go again… I have a 2010 Gt Stang, for the last YEAR we have been battling a shifting issue, many people claim to have had it, many people claimed to have fixed it.. Here’s the issue… driving normally, even up to around 4,000 rpms, the car shifts as smooth as butter as you start getting higher into the revs, its increasingly difficult to shift, try above 6,000, and your sadly mistaken, it just isn’t going to happen, it feels as if your not stepping all the way down on the clutch when shifting, and FORGET ABOUT THE TIME I WENT TO THE TRACK AND ATTEMPTED SHIFTING @ 6,600 RPMS, I ACTUALLY HAD TO WAIT FOR THE RPMS TO DROP TO AROUND 4,000 BEFORE I COULD GET INTO THE NEXT GEAR… Also, the clutch pedal will vary randomly from catching near the floor and even hard to get into 1st at a stop, to up to the point that it almost even feels “high”… This leads me to really believe there’s a pressure issue..
Now, before anyone responds with fixes or advice, I just want to tell you what has been installed to “fix this issue”
A BRAND NEW TRANS (THIS IS THE THIRD ONE)
A BRAND NEW OEM FORD SLAVE
ALL NEW BRAKE/CLUTCH FLUID AND REPEATED BLEEDS, AS PER FORUM ADVICE AND FORD OFFICIAL PROCEDURE
BRAND NEW SYNCROMESH FLUID
BRAND NEW POLY MOTOR MOUNTS
BRAND NEW CHE TORQUE LIMITER/TRANS REINFORCEMENT
TRIED ROUSH / HURST SHIFTER (ALSO BRAND NEW) MADE PROBLEM WORSE, HAVE SWITICHED BACK TO STOCK SHIFTER AGAIN
THIRD BRAND NEW FLYWHEEL AND SPEC STAGE 2 CLUTCH KIT, EVEN HAD PRESSURE PLATE AND FLYWHEEL CHECKED FOR ANY INCONSISTENCIES AND EVEN TURNED TO MAKE 100% SURE THERE WERE NO HIGH SPOTS.
I HAVE HEARD MANY, MANY PEOPLE USING THIS SETUP WITH A STOCK SLAVE AND ABLE TO POWERSHIFT ALL DAY LONG, I SPOKE TO BRENSPEED AND CHANDLER HAS INSTALLED AND DRIVIN MANY S197 STANGS WITH RACE CLUTCHES AND ALWAYS USES THE STOCK OEM SLAVE WITH NO PROBLEMS, EVEN @ 6,600 RPM REPEATED POWERSHIFTS.
Now, as you can see, its clear that there is almost nothing else left to do, also, I have been building and racing Mustangs (as well as just about everything else) since the 90’s, I have had many, many high performance street and track cars, and yes, I am a very experienced driver both on and off the track, so the driver error/lack of skill part isn’t the issue here..
I just ordered the braided high-pressure clutch line last week, I’m going to try that and flushing and bleeding the fluid AGAIN…This problem is so ridiculous that the last 15,000 miles have been spent trying to remedy the problem, and I think ive done a damn good job at going “all out” in an attempt to fix this issue… I DID NOTICE THAT THE 2005-2007 MUSTANGS HAVE A MUCH LARGER MASTER CYLINDER FOR THE CLUTCH/BRAKE FLUID, IM CONSIDERING SEEING IF THEY ARE A DIRECT SWAP, IM RUNNING OUT OF IDEAS HERE…
IF ANYONE HAS ANY ADDITIONAL ADVICE, PLEASE CHIME IN, WITH 528 RWHP IT’S A PRETTY ANNOYING WASTE OF POWER BEING I HAVE TO SHIFT LIKE IM DRIVING A SEMI….
(ALSO, THIS PROBLEM HAS EXSISTED FOR A YEAR NOW, WHEN THE CAR WAS 99% STOCK, I HAVE CONTINUED MODDING AND STILL NOT BEING ABLE TO SHIFT FOR THE PAST YEAR)
THANKS IN ADAVWNCE FOR ANY AND ALL HELP EVERYONE…