Anything you can do, I can do better... except burn rubber

[jfortier777]

Heres the question.

Most of us drive the 3.7L which is obviously capable of at least smoking one tire.

I can't do it.
I see that there is a limiter that won't let me over 2k RPM when the brake is engaged.

Smoking tires is bad, but who cares. It's my jeep right, why the hell can't I do what I want with it.

On a much more serious note this happens with rock crawling as well. Being robbed of torque is lame.

Any hints or tricks to get around this filthy thing that is draining my Liberty's... liberty.

 

[kjpilot]

Perhaps I misunderstand what you mean, but smoking your tires on rocks is not a productive use of torque. When your tires break free, you are wasting energy, and of course rubber too. It's better for performance to apply as much torque as possible without the tires breaking loose.

It might not be as impressive as a thick cloud of smoke, but it gets the job done! drive.gif

 

[gsbrockman]

My liitle CRD has no difficulty at all breaking both rear tires loose when power braked (gotta make sure the anti-spin differential is working properly from time to time). \/

Greg

 

[tgh117]

You can't spin your tires because you have a 2.5" lift kit and bigger tires. You won't be able to ever spin yours unless you take the lift kit off and put some weenie small tires back on.

As for the brake, I don't know anything about the limiter. Good luck spinning those tires.

 

[SavageSS27]

^^^I dunno about that^^^ i've got the frankenlift and 4 50lb. General Grabber AT2s and i've spun one of them slightly (open diff) from a standing start before without power braking it....i just floored it. The only thing i've done to my truck is have a Flowmaster installed...I run synthetic and just replaced the spark plugs about 5k miles ago, but i don't think that'd make a HUGE difference. I still have to try power braking, but i've just been to chicken O

 

[jfortier777]

It has nothing to do with the lift kit or tires. It is true that puts a bit of extra stress on the engine and robs me of a little power though.

That was easily ruled out by the fact that it acts the same way if you go to the dealer and test drive one. (Which I did before making this thread.)


As far as proper use of my torque, I meant while crawling I am cut off before the point that I would lose traction and I could easily spin the wheels harder and remain glued to the rocks.

Basically the computer is deciding how much power I am allowed to apply at a given point, which should be my decision based on the situation.

 

[06LibertySSE]

Must be an 05 Thing... On my 06 with the Electronic Stability Program I dont seem to have that problem... If the road is slightly wet or the rear tires are on the painted stop lines on the road, BOTH rear tires will spin until the ESP activates and reduces power to the rear wheels. Same in 4 wheel drive. If I brake torque it my tach lets me get to about 3150 - 3200 RPM's and then I can launch. Granted I have the stock Goodyears on there and no lift... But Im really not sure how much difference that makes. I have also read that the 2005 & 2006 have 10 more lb/ft of torque versus the previous models.

 

[-=JoN=-]

dunno if anyone else seen this..
a while ago someone posted in LOST or JU of some teenager burning rubber on his liberty....
and one of his friends was like pushing the liberty left to right....

do you have the an lsd?

 

[Bennett]

dunno if anyone else seen this..
a while ago someone posted in LOST or JU of some teenager burning rubber on his liberty....
and one of his friends was like pushing the liberty left to right....

haha ya, that was me, i post up the weirdest crap.

Bigger tires aren't going to work like the stock ones, especially since you're running such a wider tire over stock... One being the diameter is larger, secondly its wider...

The only way to get it back to how it was with stock tires is to change your gearing, but then you're going to get crappy highway mileage... but it will be lot pepier. Or we all talk to Kenne Bell and get them to reproduce the superchager kits for us.

Like you said it's your Jeep you can do what you want with it, but it really doesn't look that cool when your only doing a "one wheel wonder". LOL...

 

[jfortier777]

Mono burnout for the lose....

 

[kjpilot]

Can some one explain how you can both spin your wheels and remain glued to the rock? I'm not being smug, if this is the case, I want to know how it can be true. It makes absolutely zero sense to me based on my current knowlege. kopkrab.gif

 

[jfortier777]

I know you are being smug but thats ok, I will forgive you until you understand what I am saying.

This applies to rock crawling in the sense that I even though I have a great grip on the rock I'm climbing I am limited at the 2k rpm, even though I could probably remain attached with I bit higher rpm and torque.

I have no desire to burn rubber while rock crawling.

If anyone here can dig up a torque vs rpm chart for our libs in 1st gear it would be a great visual aid.

 

[kjpilot]

WELL, I'm not TRYING to be smug, anyway! O Your original subject title made it sound like you wanted to do burn outs where you need traction. I live in Minnesota, where all winter long, people spin their tires on the snow & ice; thinking more power will fix the problem, when less is the real fix.

Anyway, the reason you can't achieve more than 2000 RPM with the brakes applied, is because of the torque converter in the transmission. It has a stall speed- apparently 2000 rpm- it's funtion is to protect the transmission, not limit your fun. All automatic transmissions have a torque converter, and they all have stall speeds. You might be able to get a higher stall speed converter, it will be expensive, though.

 

[Se7enLC]

must.....resist.....urge.....to.....brag.....about......burning out in 6 speed........

 

[Marlon_JB2]

must.....resist.....urge.....to.....brag.....about......burning out in 6 speed........

lol3.gif

I can't do it either, tried several times.

The whole braking-while-on-gas procedure, whatever it's called, and slamming the gas pedal while taking off from a stop.

Even with the Wrangler STs I couldn't do it.

 

[JeepJeepster]

There must be something wrong with your jeep if you cannot get over 2k rpms with the brake on. Ive never power braked my jeep but I live on a hill and sometimes pull a boat and must get over 2k rpms just to start moving before I let off the brake. If I dont then I just roll back. :-s

Edit: Im wrong, my jeep does the same thing? [-(

 

[Marlon_JB2]

I tried all morning to get this to happen, and it finally did after almost 2 years and 2 different sets of tires. I'm not sure what was different about it this time, but the KJ *can* burn rubber, and lots of it.

Pedal all the way to the floor, on some slippery concrete I guess. Screeeeeeeeeeeeeeeech!

I guess it just sticks to the road well? hehehehehe

 

[SavageSS27]

yeah, i did one of those the other night, but it had been raining so the roads were kinda damp, it doesn't take much, but she'll light 'em up. I think i even got a little squeal from a stop once on a dry road. My problem is that i have an open diff, so i do those dorky one-wheel burnouts and not the sweet incredibly smokey/sideways ones. Anyone know if one of the factory LSDs will help me spin both, i know it'll be better off road, and i'm probably gonna pick one up, i just want to know if i'll be able to roast the rear tires (BOTH) with an LSD...thanks

 

[jfortier777]

THATS IT!

Now I am irritated, tomorrow morning I am going over to the parking lot by my house with some dishsoap and my camera.

I dont care if I mono or not, I WILL BURN RUBBER!

Ill post the video ASAP.

 

[jfortier777]

Video!

Here is video evidence of my problem and I guess also, a testament to the great traction of my tires.

EDIT: I guess it woudl help if I included a link to the video...
http://video.google.com/videoplay?docid=-1376108923773963055