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Old 11-01-2012, 01:26 AM   #1
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4H and handbrake

Iam entering a 4x4 race this saturday, iam told they made tight turns on the laps and i wanted to know of iam in 4H, clutch it and hand brake, will i hurt the transfer case? Rear tires will be completely blocked and front turning.
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Old 11-01-2012, 01:29 AM   #2
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Pavement or dirt?

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Old 11-01-2012, 01:30 AM   #3
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Quote:
Originally Posted by Jerry Bransford
Pavement or dirt?
Dirt, its a desert offroad race. There is a lap and they time everyones lap. Also the reason i ask is because i have an auto locker in front and iam pretty sure it will not let me turn very well on tight turns with the 4H engaged.
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Old 11-01-2012, 09:28 AM   #4
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Bump it back naybe someone could chime in. Thanks
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Old 11-01-2012, 09:54 AM   #5
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The transfer case won't have any issue at all with that, many run full-time in the dirt with their ARBs locked which turn the differentials into spools with no differentiating at all. Your front auto locker at least allows that to happen.
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Old 11-01-2012, 09:57 AM   #6
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Quote:
Originally Posted by Jerry Bransford View Post
The transfer case won't have any issue at all with that, many run full-time in the dirt with their ARBs locked which turn the differentials into spools with no differentiating at all. Your front auto locker at least allows that to happen.
he's talking about a "front dig" as far as I can tell. which needs you to disengage the rear axle drive from inside the cab using a twin-stick t-case (like an Atlas).

...personally, I'd rather finish the trail instead of grenading a u-joint or t-case.
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Old 11-01-2012, 10:08 AM   #7
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I dunno, his sig says his TJ is stock which means he doesn't have anything like an Atlas transfer case.
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Old 11-01-2012, 10:09 AM   #8
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Originally Posted by Jerry Bransford View Post
I dunno, his sig says his TJ is stock which means he doesn't have anything like an Atlas transfer case.
and thats exactly why a front dig will break stuff on his jeep. not to mention most front dig rigs are sitting on tons...

here's what a front dig is:
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Old 11-01-2012, 10:31 AM   #9
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I cant figure out how to change my sig sorry about that. I have a stock transfer case, 4inch lift 33s and a front aussie locker. I wil try to explain m question, this race has loose sand, mud, high climbes and fast sections and tight turns. I have to have my 4 H engaged and my question is if i want to use my ebrake ( handbrake) on the tight turns, will i hurt my tcase? I will push the clutch in offcourse but the rear tires for the turn will be locked and front turning with 4h on, is that okay?
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Old 11-01-2012, 10:41 AM   #10
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Quote:
Originally Posted by TJ-Q8 View Post
Iam entering a 4x4 race this saturday, iam told they made tight turns on the laps and i wanted to know of iam in 4H, clutch it and hand brake, will i hurt the transfer case? Rear tires will be completely blocked and front turning.
How do you justify the potential for large amounts of damage you can't afford?
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Old 11-01-2012, 11:02 AM   #11
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Quote:
Originally Posted by Black Magic Brakes

How do you justify the potential for large amounts of damage you can't afford?
Why potential for large amounts of damage? Thats why i asked if they say the tcase will suffer i wont do it. Iam just tryng to find a style of driving to choose.
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Old 11-02-2012, 09:42 AM   #12
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Bump up. Tomorrows the event. I need to knoww.
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Old 11-02-2012, 10:19 AM   #13
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Bump up. Tomorrows the event. I need to knoww.
you'll destroy stuff. what's to be confused about?
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Old 11-02-2012, 10:30 AM   #14
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Quote:
Originally Posted by UnlimitedLJ04
you'll destroy stuff. what's to be confused about?
I didnt get a straight answer i thought nobody understood what i asked. Hehe. I always thought that you can handbrake while in 4h.
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Old 11-02-2012, 10:33 AM   #15
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Quote:
Originally Posted by TJ-Q8 View Post
I didnt get a straight answer i thought nobody understood what i asked. Hehe. I always thought that you can handbrake while in 4h.
you can do it, just make sure you remove your rear driveshaft beforehand. might want to say a little prayer that you don't grenade a front shaft/joint too.
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Old 11-02-2012, 10:44 AM   #16
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You want the rear tires to stop and the front tires to go? Like mentioned, you'll either need to disco your rear drive somehow or you may break U-joints, Drive shaft, tail cone, TC gearing, Axles, brakes, etc... basically your wanting 1/2 your drive train to drive and 1/2 to stop.

Either something needs to be disconnected or you will violently disconect it at the weakest point.

Doesn't sound like a good idea to me...

Here is an example of a power slide NOT using the brakes. You need to shift the weight of the jeep and remember to steer into your slide or you'll roll 'er right on the roof. This is where horsepower is your best friend...

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Old 11-02-2012, 02:29 PM   #17
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Quote:
Originally Posted by sevenservices
You want the rear tires to stop and the front tires to go? Like mentioned, you'll either need to disco your rear drive somehow or you may break U-joints, Drive shaft, tail cone, TC gearing, Axles, brakes, etc... basically your wanting 1/2 your drive train to drive and 1/2 to stop.

Either something needs to be disconnected or you will violently disconect it at the weakest point.

Doesn't sound like a good idea to me...

Here is an example of a power slide NOT using the brakes. You need to shift the weight of the jeep and remember to steer into your slide or you'll roll 'er right on the roof. This is where horsepower is your best friend...

Yeah i got you, throwing the weight is no prob my other hobby is drifting, but in the last race i was a spectator and all the guys were ebrake into te turns on 4h and i thought that was wrong. Iam just afriad that on the tight turns my front locker will cause me to understeer. And the ebrake was my solution. I guess i will loose some time goin into turns but atleast my jeep wil be in one piece.
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Old 11-02-2012, 03:12 PM   #18
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Ehh.. SWB Jeep+handbrake turn+possible rut=Rollover
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Old 11-02-2012, 03:18 PM   #19
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Quote:
Originally Posted by Moabrubi
Ehh.. SWB Jeep+handbrake turn+possible rut=Rollover
Hehe yeah i know but not when i bring the speed down a bit. Hehe just wanted to help my time a bit.
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Old 11-02-2012, 03:34 PM   #20
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Quote:
Originally Posted by TJ-Q8

Hehe yeah i know but not when i bring the speed down a bit. Hehe just wanted to help my time a bit.
Best bet is ask the other guys racing and see what their set up is and if they do/don't rip the e-brake.
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Old 11-02-2012, 05:58 PM   #21
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Quote:
Originally Posted by TJspeed

Best bet is ask the other guys racing and see what their set up is and if they do/don't rip the e-brake.
Most of them are my friends and all stock drivetrain, i asked them if they do ebrake turns and they said yes, then dont go into tehnical details, they just do it until it breaks.
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Old 11-02-2012, 06:09 PM   #22
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Quote:
Originally Posted by TJ-Q8

Most of them are my friends and all stock drivetrain, i asked them if they do ebrake turns and they said yes, then dont go into tehnical details, they just do it until it breaks.
This race sounds kinda cool. Any pictures or videos?
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Old 11-02-2012, 06:10 PM   #23
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Quote:
Originally Posted by TJ-Q8 View Post
Iam just tryng to find a style of driving to choose.
"The Fast and the Furious" is not a good style to choose for Jeeping. You have a part-time transfer case, which means the front and rear drive shafts are permanently joined by a chain while in 4hi/lo. If your e-brake is strong enough to stop the rear wheels, it will stop your front ones too, via the chain link. Then you will be in a 4 wheel skid and be worse off for turning than you were to begin with. Assuming the case doesn't explode when the front tires bite.
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Old 11-02-2012, 06:19 PM   #24
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Quote:
Originally Posted by TJspeed

This race sounds kinda cool. Any pictures or videos?
Hopefully i can get some tomorrow. Yeah it does sound kinda cool, but it has a lot of high speed sections which i dont like and my jeep is not ready for them. Iam just entering for the fun of it not for the win.
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Old 11-02-2012, 06:20 PM   #25
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Quote:
Originally Posted by C.L.

"The Fast and the Furious" is not a good style to choose for Jeeping. You have a part-time transfer case, which means the front and rear drive shafts are permanently joined by a chain while in 4hi/lo. If your e-brake is strong enough to stop the rear wheels, it will stop your front ones too, via the chain link. Then you will be in a 4 wheel skid and be worse off for turning than you were to begin with. Assuming the case doesn't explode when the front tires bite.
Now thats a perfect answer. Thank you my friend, thats what i was thinking all the time and i needed a confirmation. Basically i will watch tomorrow and wait for tcases to explode. Hehe
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Old 11-02-2012, 08:02 PM   #26
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You can always shift into 2wd right before the turn, power slide and if you have traction shift back into 4h once the rears grab. Unless its really deep sand then that prob won't work.
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Old 11-02-2012, 11:05 PM   #27
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Quote:
Originally Posted by 00tj2
You can always shift into 2wd right before the turn, power slide and if you have traction shift back into 4h once the rears grab. Unless its really deep sand then that prob won't work.
And if i hv to shft back into 4h then thats a prob too.
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Old 11-03-2012, 09:36 AM   #28
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Quote:
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And if i hv to shft back into 4h then thats a prob too.
There is no problem shifting between 2 hi and 4 hi on the fly. Read the owner's manual.

I do it everytime I drive our 04 turning into the driveway. It's steep gravel and the rear tires kick all the gravel out into the street if you don't use 4 hi.

I turn the corner without stopping, pop it into 4 hi, clear the steep section and pop it back into 2 hi.
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Old 11-03-2012, 09:56 AM   #29
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Quote:
Originally Posted by TJ-Q8

And if i hv to shft back into 4h then thats a prob too.
Your able to shift back forth from 2H and 4H on the fly up to 50mph.
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Old 11-03-2012, 10:27 AM   #30
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I think what he really needs for this race ( and style of racing ) is turning brakes with an open rear axle.

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