AXLE HOP WITH KAFER BAR

cnfabo Custom Title Time!

1,353 posts · joined Apr 2008 · 11 May 2009, 10:05 am

#711642

i purchased 3 point kafer bar off craig and still getting bad axle hop if i launch up to 4000rpm but anything over that i get lots of wheel spin.

on the rear i have adjustable spring plates, koni adj reds, camber compensator, and 205-50 kumho ecstas,medium compound.

any suggestions as i was told the kafer bar was all i would need to stop the tramping....

Sides Veteran Volks Folk

2,220 posts · joined May 2007 · 11 May 2009, 10:09 am

#711644

"if i launch up to 4000rpm".... does that mean it does it even at low rev's ??? (say 1500 or so)

If so it could be clutch shudder... feels kinda the same as axle tramp, except will do it without spinning the wheels...

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Craig Torrens 6 times Australian, 7 times State Hillclimb Class Champion

8,040 posts · joined Jan 2003 · 11 May 2009, 4:21 pm

#711678

what mounts are you using on the gearbox ?

Tramp is a combination of the forks flexing as well as the gearbox/engine moving on its mounts

The K Bar stops the forks from flexing, but it wont stop the gearbox/engine moving if you haven't upgraded the mounts.

grogy Custom Title Time!

1,000 posts · joined Aug 2007 · 11 May 2009, 6:06 pm

#711691

have u got a bar under the rear of u motor?

cnfabo Custom Title Time!

1,353 posts · joined Apr 2008 · 11 May 2009, 6:29 pm

#711699

no mounts and no tramp bar....

sides, say 3000-4000rpms it will tramp..

Sides Veteran Volks Folk

2,220 posts · joined May 2007 · 11 May 2009, 7:09 pm

#711706

Right, OK - I'd be thinkin along the same lines as Craig then... mounts.

Assuming "no mounts" means the standard rubber mounts... maybe go up to a set of urethane mounts F & R and a strap kit ???

Solid mounts if you're really serious, but that'll be pretty noisy in a street car...

VWDCQ vice pres & web dude - vwdcqinc.org.au
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hellbugged 48's and straight cuts

5,080 posts · joined Apr 2003 · 11 May 2009, 7:12 pm

#711709

mid "BERG" mount on gearbox?........

yeah, engine mounts both 2 at rear and front must be good

torsion bar rubbers OK?

You supersrinting at the nats Dave???????

Sides Veteran Volks Folk

2,220 posts · joined May 2007 · 11 May 2009, 7:51 pm

#711724

Nah Daimo - unfortunately not - got family stuff on that weekend that I just couldn't get out of...

🙁

VWDCQ vice pres & web dude - vwdcqinc.org.au
Join a car club - get car peeps

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'70 Hillclimb Bug 'Jezebel' w/- Haltech EFI - http://bit.ly/VwTNtQ
'60 KG Coupe - resto kinda started
01 New Beetle - gf's car, but I turn the spanners

hellbugged 48's and straight cuts

5,080 posts · joined Apr 2003 · 11 May 2009, 8:02 pm

#711727

🙅.....soft.......said else where, you are welcome to stop here as the half way rest/sleep stop and convoy it if you change plans.

yeah family, understand, i'm in trouble 😀

Sides Veteran Volks Folk

2,220 posts · joined May 2007 · 11 May 2009, 8:35 pm

#711737

Just had a phone call with the fam... there's a now a possibility I can make it...

(btw sorry Chris for the hijacking 😊)

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FROSTY Insano Dub Head

744 posts · joined May 2009 · 11 May 2009, 8:51 pm

#711741

Hi Guys,
Had the same problem over the weekend couldn't stop it from hopping. After taking the tranny strap, tramp bar, shockies and sway bar from my other car it was either the clutch or the cable tube (bowden tube I think it's called) all it took was a couple of washers at the gearbox end making the bow in this tube about 35mm. Fixed it, no bounce at all.

westi what the

1,610 posts · joined Aug 2005 · 11 May 2009, 10:14 pm

#711764

from my experience over the years,solid mounts,good shocks.no tramp ever.
ever ,ever,
i had never even seen a kafer bar until about a year ago.and as far as i can see unless it holds the engine and or box or both,how could it stop your engine and box from moving(tramping).it will stiffen up your arse end,just as good as some hemroid cream, but you will still need to hold your engine and box pretty firmly,strap or solid mounts.
any how that's my buck fifty's worth.

down sharon.

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 · 11 May 2009, 10:23 pm

#711767

Berg midmount and urethane or solid torsion bar bushes should be fitted for control of hard launch, assuming clutch all good. I'm cheap....only 2c😉

Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
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cnfabo Custom Title Time!

1,353 posts · joined Apr 2008 · 11 May 2009, 10:31 pm

#711771

my gearbox rubbers are stock and in good condition and i have just replaced the torsion bar bushes.

i have just received my heavy duty mounts that i go off mark on AVD,but wont be installing them anytime soon.

so what would be the verdict as thats why i purchased the k bar because i thout it stops axle hop, without all the other shit you have to put on aswell.????

beetleboyjeff Custom Title Time!

1,790 posts · joined Feb 2009 · 11 May 2009, 10:41 pm

#711776

I agree with Frosty, check your Bowden tube has enough bow in it.

From your ole' mate Jeff

cnfabo Custom Title Time!

1,353 posts · joined Apr 2008 · 11 May 2009, 11:00 pm

#711779

bowden tubes all good, i had my engine out the other day to replace pressure plate " calapsed dighram" and replace clutch fork,T/O bearing so i checked everything else.....

BiX Veteran Volks Folk

2,499 posts · joined Sep 2002 · 12 May 2009, 4:07 pm

#711887

Also are they early or late engine mounts? the later ones were big and allowed allot more movement. The earlier slimmer ones don't allow as much. I did the swap and reduced the tramp allot.....

I have no sympathy for my car, only the wallet that pays for it!
Go hard or go home!!!!

bajachris88 The international telephone dialing code for Antarctica is 6

6,661 posts · joined Apr 2005 · 12 May 2009, 4:25 pm

#711889

Theres no one shaggin roughly in the back seat is there 😂

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Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 · 12 May 2009, 4:58 pm

#711893

BiX is right about the tranny mounts

what year bug?

the later mounts both front and rear are really shitty design and so's the gearbox cradle

u cant do much bout the front mount but i swap all my late bugs to earlier rear mounts and tranny cradle

the early cradles are much stronger and better built and have better design mounts

from memory its 72 and earlier

cnfabo Custom Title Time!

1,353 posts · joined Apr 2008 · 12 May 2009, 6:29 pm

#711915

the bugs a 64.

not sure if there late or early mounts already on there.

looks like ill have to put up with it till im ready to install the heavy duty ones.....

cheers for the help.....