Just wondering how most of you out there launch your cars..I keep reading that we should launch at about 6-7 k but each time i try i just fry my clutch..then when i try like at 5k there's not enough torque to even get my wheels spinning and i bog..this isn't even with my s02's!..I just have some cheapo winter tires on there and i still can't get a good launch..what's the best way to launch are cars??..I wonder if my clutch is fried..I only have 2900 kms on the thing..what do you think??

 

Unless you're playing boy racer on every launch, it's not neccessary to launch at such high revs. I've experienced the same clutch slippage at the higher revs you speak of. A recent post discussed the best technique for high rev launches. Don't release the clutch slowly, but hold the clutch down and just drop your foot off to launch (I believe that was the recommendation; I really haven't tried it.)

 

I spoke with a friend at Honda who said the best way to launch the car is to rev up to about 5000 to 5500 and slowly "feather" out the clutch. Dropping at high rpm will cause too much slippage.

 

Hi Jim

I don't think your car needs to be launched like the rest of us. For a normally aspirated S2000, depending on surface conditions, 6000 revs and then side stepping the clutch, allowing it to pop up gets you the ideal launch. The S2000 clutch should not be "feathered" or slipped during hard take offs.

Your S2000 is a breed apart. I'd try a launch at about 4500 rpms using the "side step" technique and see if you get too much wheel spin or if it bogs. I think it is really crucial that you don't slip the clutch because your pressurized motor will just reduce your clutch to slag, I think.

Keep us posted, keep us drooling.

2x6

 

once you get to know your car, you will know what to do to break the rear loose.

Here is what happens, you have to spin the tires untill your up to speed (15-20mph) or else the engine bogs or the clutch slips. If you dont put enough into the clutch drop and the tires done spin, your clutch wil slip all the way down to whatever rpm/speed your going. If you know you cant spin the tires (weak/worn clutch) then feathering is best to transfer more energy to the wheels.

Feathering/slipping works kinda like a gear ratio but alot less efficient because of heat and wear on the clutch. I feather most of the time. Works great, and you get a better performance/wear ratio. But thats not at the drag strip trying to get .01-.05 sec faster either.

 

Dropping the clutch at 8000RPM isn't good for your clutch so don't do it often. I get that part.

But at a red light, who can you beat off the line if you drop the clutch at a safe level (whatever that is) and you shift at redline each time? Are we talking 7-8 second 0-60 times here?

 

hehe, were talking about how well you can drive the stook now, off the line to 28mph is the part you have to work on. From then on you can take on some cars with 5 sec 0-60

I couldnt tell anyone times cus they vary so greatly with the driver/car, I have heard of slow stook's and fast stooks, Sev has a fast one I think I do to

 

If you launch at 4k rpm by popping quickly off the clutch, then shift at redline, you will do about 6.8 seconds to 60.

I have done this many times using my Gtech Pro.

You cannot beat any real sports car at that rate IF they are trying hard. However, It's not really a fair fight this way, is it?
A Porsche Boxster dropping the clutch at 3k is about the same as us dropping at 4k, so I think you could beat a Boxster like this.
Keep in mind while everyone says it's rough on the clutch to drop it from 6-8k, a clutch is a wear item. It is less hard on our cars to do this than it is on a Mustang GT to rev to redline often.
Our clutch needs replacing early, his engine needs replacing early.....Which one do you want?

Drop the clutch from 6k and finish 'em off!

John

 

Hmm..I wonder what Sev's technique is to get the car off the line!!..are you anywhere here??

 

I really think that I have a fast s2000 is a bunch of poop. it's the driver not the car.