1/4 mile Bradenton FL

ianthegreat · 06-23-2009, 10:39 PM

You had some sub 2.0 60' times. That should be good enough to get you around a 13.3 - 13.6 with the rest, i'm sure the heat played a factor.. Were you keeping your hood open and blasting the heat inbetween runs?

ML Tampa · 06-24-2009, 06:07 PM

Quote:

Originally Posted by ianthegreat

You had some sub 2.0 60' times. That should be good enough to get you around a 13.3 - 13.6 with the rest, i'm sure the heat played a factor.. Were you keeping your hood open and blasting the heat inbetween runs?

We probably did 12 runs the temp never breached 230. We had problems with the clutch in the beginning when we were popping the clutch in first gear at the start. The clutch stuck on us twice which returned us a 19sec and 34sec 1/4 mile, awesome! It made me sick. I thought I was going to have to replace the clutch after owning the car for only 3 months. We almost called it a day, but we let the clutch cool down and started running again without taching up at the tree. That's when we started running in the 13.9's and 13. I think I need to figure out how to tach up in 1st without the clutch sticking. Wheel hop is another issue if the clutch engages. Thanks for your comment.

Phimosis · 06-26-2009, 11:43 AM

Quote:

Originally Posted by ML Tampa

We had problems with the clutch in the beginning when we were popping the clutch in first gear at the start. The clutch stuck on us twice which returned us a 19sec and 34sec 1/4 mile, awesome! It made me sick. I thought I was going to have to replace the clutch after owning the car for only 3 months. We almost called it a day, but we let the clutch cool down and started running again without taching up at the tree.

This is not clutch "sticking," it's "slipping". The pressure plate/clutch springs don't have enough clamping force to either bring the engine speed down to the transmission speed, or make the tires spin and bring the transmission speed up to the engine speed. It usually only happens when the clutch is hot and you impart a bunch more heat into the disk, overheating it. If you keep on the throttle and keep slipping it after this has happened, you can "glaze" the clutch, where it will keep slipping until the gaze has been burnt off.

I did this to my Corvette somewhere between 10 and 20 times over the course of it's life and the stock clutch survived to 54,000 miles when I sold it. It does decrease the lifespan of the clutch, but doesn't neccesarily kill it right then and there.

ML Tampa · 06-26-2009, 08:54 PM

Quote:

Originally Posted by Phimosis

This is not clutch "sticking," it's "slipping". The pressure plate/clutch springs don't have enough clamping force to either bring the engine speed down to the transmission speed, or make the tires spin and bring the transmission speed up to the engine speed. It usually only happens when the clutch is hot and you impart a bunch more heat into the disk, overheating it. If you keep on the throttle and keep slipping it after this has happened, you can "glaze" the clutch, where it will keep slipping until the gaze has been burnt off.

I did this to my Corvette somewhere between 10 and 20 times over the course of it's life and the stock clutch survived to 54,000 miles when I sold it. It does decrease the lifespan of the clutch, but doesn't neccesarily kill it right then and there.

Cool, thanks for the info.

Diesel370 · 07-02-2009, 11:02 AM

Quote:

Originally Posted by ML Tampa

We probably did 12 runs the temp never breached 230. We had problems with the clutch in the beginning when we were popping the clutch in first gear at the start. The clutch stuck on us twice which returned us a 19sec and 34sec 1/4 mile, awesome! It made me sick. I thought I was going to have to replace the clutch after owning the car for only 3 months. We almost called it a day, but we let the clutch cool down and started running again without taching up at the tree. That's when we started running in the 13.9's and 13. I think I need to figure out how to tach up in 1st without the clutch sticking. Wheel hop is another issue if the clutch engages. Thanks for your comment.

Could be your clutch fluid boiling. I would switch your clutch fluid to Motul High temp fluid and see if this fixes your clutch problem.

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06-23-2009, 10:39 PM	#1 (permalink)
ianthegreat Base Member Join Date: Mar 2009 Location: TEXAS Posts: 171 Drives: 08 335i, 86 Ranger Rep Power: 17	You had some sub 2.0 60' times. That should be good enough to get you around a 13.3 - 13.6 with the rest, i'm sure the heat played a factor.. Were you keeping your hood open and blasting the heat inbetween runs?