tire spin - BMW Forum

98estorilm3 · 02-02-2006, 08:23 PM

Alright this is kindof a weird question. I have a 98 m3 automatic. Even when i turn off traction control (when the light is on????) i cant get the tires to spin at all when i floor it and put it in sport mode. When i drove my friends cl type-s u barely touch the gas and they spin. I know the m3 is faster than the cl so why cant i get mine to spin. Kinda a stupid question but it gets at me. Any response will help
thanks guys

boostinsixtwintturbo · 02-02-2006, 10:12 PM

Quote:

Originally Posted by 98estorilm3

Alright this is kindof a weird question. I have a 98 m3 automatic. Even when i turn off traction control (when the light is on????) i cant get the tires to spin at all when i floor it and put it in sport mode. When i drove my friends cl type-s u barely touch the gas and they spin. I know the m3 is faster than the cl so why cant i get mine to spin. Kinda a stupid question but it gets at me. Any response will help
thanks guys

Becuase the bimmers electronics is doing its job.... laying down all the traction you need, spinning tires dont make you faster or look cooler.

98estorilm3 · 02-02-2006, 10:16 PM

alright that was cool i was jus checkin. I didnt know if my 90,000 miles was startin to get at my performance

boostinsixtwintturbo · 02-02-2006, 10:21 PM

Quote:

Originally Posted by 98estorilm3

alright that was cool i was jus checkin. I didnt know if my 90,000 miles was startin to get at my performance

no , just worry about the tranny when it shifts late , or takes too long or has harsh engagement, other wise your tranny is good. Do a inspection your self and check the tranny fluid if it has been changed.

btw... the cls is FWD. enough said.

4evrwyntr · 02-03-2006, 12:31 AM

Strange.... if you shut off your ASC, even with the torque converter you should STILL be able to get some spin... you sure you using the kickdown function?

///M Power · 02-03-2006, 03:41 PM

Manually drop it down to the lowest gear and try from there

4evrwyntr · 02-04-2006, 09:59 AM

I guess you could brake start and kick off at higher RPMs, but that's BAD.

98estorilm3 · 02-04-2006, 10:11 AM

yea i dont know much about this kickdown function, im talkin about from a stop??. If i put it down to 2 gear manuely in the m mode is that what ur talkin about. Sorry i dont really know anything about htis car yet

98estorilm3 · 02-04-2006, 10:18 AM

so pretty much i need someone to explain the kickdown function to me : (

4evrwyntr · 02-04-2006, 11:53 AM

Unlike other cars, bmw autotragics have a "kickdown" function; i.e. there is more room after "flooring it". If you look under the accelerator pedal, you'll see an actual button sticking up from the floor. This is the kickdown button. If you want to "normally" floor your car, you push the pedal until it is stopped by the button. Applying more pressure presses this button, which forces your car to drop a gear (90% of the time). Depending on where you're at in revs, and what speed, your car might even downshift TWICE.

98estorilm3 · 02-05-2006, 08:35 AM

wouldnt that be bad if u were floorin it and the revs were pretty high just droppin it down a gear (overrev)?

Teh Prof · 02-05-2006, 08:57 AM

Quote:

Originally Posted by 98estorilm3

wouldnt that be bad if u were floorin it and the revs were pretty high just droppin it down a gear (overrev)?

Your car is smarter than that. On the other hand, it might kickdown with only 500 rpm left until redline, and then upshift again. However, the computer calculates the gear relative to the tach, so an automatic won't over-rev. The only way I can think of to get your automatic to over-rev is to put it in "M" mode, and I'd think even then the computer would stop you at redline.

Torque · 02-06-2006, 09:26 AM

Your car is automatic and rear wheel drive. During a hard start, all the weight shifts to the back wheels; the automatic loses more power than a manul, and you can't rev it then slip the clutch. Therefore, any rwd automatic will struggle at doing burnouts unless it has a LOT of power.

in a fwd car, weight also shifts to the back wheels, therefore leaving less on the front ones and they spin. a 75hp automatic toyota corolla will spin the tires much more easily than a 250 hp bmw.

///M Power · 02-06-2006, 07:33 PM

Torque, are you tellign me M3's were designed for traction? That's scandalous!

4evrwyntr · 02-07-2006, 06:53 PM

It is, isn't it? I thought m3's were designed to be sport-ute baby hauler crossover's for the snow.