Installed it this morning, switched over to DOT 4 fluid, bled it, and still won't go into second gear at WOT. This is by far the most frustrating manual car I have ever owned.
Barton shifter and bracket, JHR clutch line, DOT 4 fluid. When going for 2nd gear, it will not go in. I pull back as hard as I can, and after approx. 2 seconds, it finally goes in. I don't think the pressure plate is releasing. This is my second transmission. First one didn't do it, but then again, it only lasted 7500 miles. The second one is a brand new one from Ford, that now has 9000 miles on it. Clutch pedal doesn't stick to the floor, never has. Just won't go into 2nd gear during WOT shifts. Still has the helper spring on it.
Installed it this morning, switched over to DOT 4 fluid, bled it, and still won't go into second gear at WOT. This is by far the most frustrating manual car I have ever owned.
the other thing to focus on when your shifting fast is to keep your wrist relaxed. since the shifter isnt mounted on top like the older stangs you cant muscle it. we call it "***" handing it lol
Shifter and bracket still stock? Line fixes the clutch staying disengaged (pedal sticking to the floor). Shifter fixed being able to find each gear better and the bracket fixes the slop and also aids in going into gear
This is troubling.
When you say wot I assume you are talking about your higher than stock redline due to the boss intake? If so I thought people were having issues with the stock clutch over 7200rpm. If you are willing to try them, I have motor mounts installed on my car, with my mgw shifter, motor mounts, jhr clutch line and dot4 fluid I can rip all gears, of course I am only shifting at 7k max, stock intake manifold.
I've also had similar problems and have come to the conclusion we are boiling the clutch fluid.
The clutch/pressure plate heats up the slave cylinder and boils the fluid in the slave. Once that happens there is not enough fluid pressure to release the clutch.
The larger orifice clutch lines allow more fluid thru vs clutch pedal travel, but it does not solve the problem. It's a bad-aid at best IMO.
Depending on the DOT4 fluid used vs DOT3 you will raise the boiling point ~100 degrees, again not enough as I have already swapped out the DOT3 for DOT4 (475 degree boiling point) and still have issues.
Best I can do is pump the clutch like crazy after a burnout (fluid boils during burnout) and I can nail 3 gear changes with slicks dropping the hammer. If I was on DR's slipping the clutch, I doubt I'd be able to nail even the first gear change.
Once the rest of my new brake setup gets here I'll be doing another fluid swap, and even have a remote clutch reservior ready to install if needed.
Tilton makes TSR-1 brake fluid which is labeled as DOT4 and compatible with conventional DOT3/4, but it boils at 622 degrees! I'll be swapping the entire brake/clutch system over to TSR-1 fluid before the next track outing.
IMO this is yet another band-aid. The proper fix would be a Slave that is insulated from the heat of the clutch/pressure plate.
just out of curiosity do the GT500s have a similar issue or since they have different tranny its a whole different setup?