lmt0705

iTrader: (7)

like the thread says, im in the process of finishing my motor and installing a new clutch, my problem is I have a dyno appointment scheduled for next week and there is no way i will get 500 miles on this thing, will doing pulls in just 4th gear hurt anything or is it slipping a new clutch that shortens its life span?

brad8266

iTrader: (23)

Its a gamble, cant you just reschedule the dyno appt? I would just wait till you put the miles on it, i am sure you dont want a fried clutch over a dyno session now do ya?

jdaniel

iTrader: (1)

I would wait. Spec makes great clutches... but they are only as good as the install and break-in you give them. If you have the money to risk it, then go ahead.

Disturbed Bird

iTrader: (9)

im dynoing mine in a week but ill have more than 500 miles on mine. i wouldnt do it

Obsolete WS6

iTrader: (5)

Im new to manuals and have tried the search button. I wasn't able to find anything, but what is slipping the clutch?

jdaniel

iTrader: (1)

When you slip the clutch, you release the pedal till the clutch slightly grabs but not at the fully engaged point. Such as when you are sitting on a hill and getting ready to take off, you bring the pedal up just slightly till it grabs so it will hold the weight of the vehicle but not take off. Its also referred to as "feathering".

brad8266

iTrader: (23)

Clutch slip is also known as when the clutch is about dead and it can not hold any power any longer and just slips everytime you give it some gas.

Obsolete WS6

iTrader: (5)

Thanks for the response guys.

BAD ASS TA WS6

iTrader: (5)

Well yeah. But I think he was reffering to the original post. Slipping the clutch is basically as jdaniel said. At the track for instance, intstead of dumping the clutch completely when you get the green light. You ride the clutch till its fully disengaged (as in not fully letting off the pedal right away).

This gets you off the line with less of a chance of breaking traction, and as quickly as possible. And yes it is hard on most clutches. Theres a big difference in riding the clutch, and slipping it off the line.

Taco

iTrader: (1)

I have always been under the impression that it SHOULDN'T hurt to go WOT as long as the clutch is FULLY engaged and that (as previously stated) it's the hard launches that hurt a "green" clutch.

Is that incorrect?

coolformula

iTrader: (21)

Yes thats incorrect.

Most people think 300-1000 miles to break in the clutch. And most people here would drive it that many miles before a dyno

SPEC-01

iTrader: (2)

We suggest completing the break-in process before dynoing. It is your car and thus your call but it is also your risk and your money.

Taco

iTrader: (1)

Thanks for correcting me on that, since I'll be installing a new clutch soon, that's good info to know!

jdaniel

iTrader: (1)

When the producer of a clutch tells me to "take it easy for the first 500 miles", thats what im going to do. Not listen to a bunch of internet racers and internet mechanics on a web forum. Spec told me a year ago when I bought my first Spec to put 500 EASY miles on it. Therefore thats what I do! I personally think its a good suggestion.