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R34Gtt Couldn't Get Up Steep Wet Driveway -No Traction

rondofj
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blah_blah Grand Master

blah_blah

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Don't thnk the traction control would help if anything it would make it worse.

In my R34 when the TCS kicks in it cuts power for a good second or so. So if it happened whilst he was on a steep driveay he wild just be sliding down slowly down the driveway :)

rondofj Veteran

rondofj

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I only gave it some AFTER goin up a car length from flat area, then it started wheelspinning and not goin up, so i freak out n apply more gas hehe- and effectively doin a burnout!

wlspn Proficient

wlspn

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Driving style in my opinion.

You didn't think to try get a slow roll happening before you hit the driveway?

& also did you try letting the clutch out with no throttle, getting a tiny little roll-on, or at least loading the driveline, then gently accelerating?

sleptema Proficient

sleptema

Posted
Posted

545nm, a wet 30 degree slope and no traction control. Yep, that'd do it.

+1

Did you try getting a little headstart? Reversing back then going at it hard?

"Get a bigger hammer" comes to mind..

rondofj Veteran

rondofj

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Maybe you got a point, WLSPN, you could be right, I didn,t do those things, to the guy below you, VONCINA, ha ha yeah I tried that of course, all I got was massive wheelspin and burning rubber lol...

mad082 Grand Master

mad082

Posted
Posted

sounds like driving style is playing a bit of a part in it, and the stiff suspension may be playing a part if it isn't a smooth transition from flat to steep, mainly if you have to take it at an angle as the inside wheel probably has bugger all weight on it. a mate of mine had a ceffy where if you jacked up a front wheel the rear wheel on the same side would come off the ground it was so stiff.

was it spinning both wheels, or just one? if both then it is a diff issue as it isn't engaging the LSD. not saying that the diff is shagged, but it is worn.

to be honest, the tida should've had the most problems going up being fwd. all the weight would be over the rear wheels and the front wheels would be light. there is one intersection in town on a steep hill and if you try to take of with any sort of haste in a fwd it will spin the wheels. in a rwd car you can take off fast easily.

my advice would be to simply idle up it with bugger all throttle. keeping it off boost will drastically reduce the chance of wheelspin and it will be putting out much less torque than the lexus would be. if it still whelspins then it is your suspension and your diff.

MrStabby Grand Master

MrStabby

Posted
Posted

If you were trying to go up slowly, then its not rpm or torque, because you regulate that with the clutch. Still suspension will definitely be a problem, as it will significantly un-weight one wheel, in which case you really need a working LSD to get any forward movement.

Any idea if both wheels were spinning or just one?

rondofj Veteran

rondofj

Posted
  • Author
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Don't know about that, my mate who was outside watching pointed out that the left rear wheel (outside of the curved driveway) was spinning but that was because he couldnt see the right inner wheel from his standpoint. I dont think its the diff/LSD because my car had straightened itself up on the straight part of the terrible slope and then wheelspinning like crazy. Which means both rear wheels getting equal grip at that time..

By the way my turbo kicks in around 2500rpm when it sees positive boost psi, by 2800-3000rpms it is at 12psi. Around 2500-3000rpms is what I would have been doing going up the slope after it started losing traction completely.... I would have driven in at 2-2500, it slipped, and then gone to 3000rpms and up to keep it from rolling back - but it never rolled back,. With the handbrake on and the car angled up the slope, I let the clutch out normally and throttle would have been 2500 and up - and massive wheelspin without movement.

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