Speed Secrets is a gem, thanks for the recommendation!
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I am just starting to get my 2012 Boss 302 LS ready for a track day. I have read about changing the brake fluid to Dot 4. I have a friend that had clutch problems during a track day at Indy. He said it was because he did not change the fluid in the clutch. I have read many posts and it seems most of the people are not going to the trouble of draining the fluid out of the clutch system. Am I reading it correctly? If I change the brake fluid the old fashion way, I do not need to worry about the fluid in the clutch system? No one is reporting problems with the clutch fluid during a track day?A long pedal could be caused by overheated fluids. Flush out what you have and run a quality dot 4 fluid. Replace the pads and rotors. Add ducts in that order. Then get out there and have some fun.
I have a friend that had clutch problems during a track day at Indy.
Not to be argumentative , and you know you are my favorite racer in all of South America, but since the individual talking says he is new to the track ( and am sure many others are since this is the premier Forum for Trackrats ) I must preface that , though , SRF is the benchmark, it should not to be assumed to be good enough to last longer than the rotors! In fact the concern here is some folks may think they do not need to change their fluid as often if they should, since all fluids will go through heat cycles and depending on the track , the driver, the outside temp, the pad wear, the rotor wear, etc. , one could be changing SRF many times in a season. I am bringing this up, because with new folks, I find blanket statements give them a false sense of security , and no argument that SRF is the best brake fluid on the Planet, but many tracks are brutal on fluids ( Road America comes to mind ). The other major quotient is the driver , as braking styles vary immensely and I know I go through fluid faster than many of my friends ( I am brutal on pads , rotors, and hence fluids ), so SRF or not , I could never make it through till I destroyed the rotors. Just bringing this up since the main focus is to view your fluid often, change when needed , as it is really one of the items that are in the same safety category as a Hans Device, rollcage, harness belts, etc. in my mind.
Yes my friend has a 2013 Boss 302 LS, stock clutch. When it got hot to would not shift.Does your friend have a Boss? There are lots of 'known' problems with the stock Boss clutch and failure to disengage at high RPM (near 7,500) and/or when hot. Symptoms include a soft or sticking to the floor clutch pedal and/or 'lockout' shifting problems.
Suggestions to change to DOT4 and separate clutch reservoirs are all good. So is a vacuum bleed on both. But may not help with the stock clutch issue.
Good luck with your track prep, and welcome to TMO!
That sounds like one of the typical symptoms. He should change his clutch before the problem gets worse.Yes my friend has a 2013 Boss 302 LS, stock clutch. When it got hot to would not shift.
No for both cars.Do you have a separate clutch reservoir?
I would if I had separate reservoirs.Do you use the Dot 4 in the clutch reservoir?
Yes on both cars. I use the turkey baster method to keep the reservoir fluid clean and clear. Make sure all the DOT3 is flushed out. Have an extra bottle or 2 on hand for the first flush.Have you ever run with the stock reservoir and did it work ok?
No on the Motorcraft. I use Motul RBF600.Do you use Motorcraft PM-21 fluid? If not then what have you had good luck with?
There aren't a lot of 'great' track tires in the exact stock sizes.I have an extra set of LS rims do you have suggestion on tires? Stock tires are very $$.
I would like to keep it as stock as possible due to car shows I attend.
No apologies! That's what the forum is for!Sorry for all the questions, just do not want to screw up.
Thanks, this will get me going. More questions later I am sure.That sounds like one of the typical symptoms. He should change his clutch before the problem gets worse.
No for both cars.
I would if I had separate reservoirs.
Yes on both cars. I use the turkey baster method to keep the reservoir fluid clean and clear. Make sure all the DOT3 is flushed out. Have an extra bottle or 2 on hand for the first flush.
No on the Motorcraft. I use Motul RBF600.
There aren't a lot of 'great' track tires in the exact stock sizes.
Not much cheaper than the OEM Corsas on your LS, but I'd choose these two for stock sizes:
MICHELIN PILOT SPORT 4SCONTINENTAL EXTREMECONTACT SPORT
Lots of other brand options if you go to slightly different sizes.
No apologies! That's what the forum is for!