| [ Total Views: 643 | Total Replies: 6 | Thread Id: 8624 ] |
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 type82e
Wolfsburg Wizard
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| posted on July 20th, 2003 at 08:40 PM |
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converting bug to irs
how hard is it to cut the pivot boxes out of an irs superbug pan?
I have just bought a 62 bug that i'd like to convert to irs I have the back cut out of a superbug irs pan so have all the brackets etc just need
to line it all up properly
marcel
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duncombemu
A.k.a.: Mark Atkins
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 posted on July 20th, 2003 at 11:09 PM |
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Don't go cutting the pivot boxes out, you 'loose' a certain amount in the process, use new ones, always.
This job is 'easier said, than done'.
There're a lot of 'chalenges' in getting things lined up. If you don't do it exactly right, then the car will 'crab' and
become very difficult to try and drive. It will over steer one way and under steer the other. Extremely anoying, not to mention, very unsafe to you
and everyone else using the road.
The IRS brackets are available and need to be welded in properly and in line/square to the moving parts. The people who do this for a living, use jigs
to get everything lined up and square to the different parts.
It's a job that not many people are capable of and in the end send it to a specialist. At least then, you know it's right. I'm not
trying to talk you out of it, just advising you that it's not 'that' easy.
Think about it. This is very important. You can start off with an OK car, then end up with a 'dog'.
Regards,
Mark
:thumb
Don't ever let anyone tell you, "It can't be done."
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amazer
Bishop of Volkswagenism
kombi pilot
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| posted on July 20th, 2003 at 11:57 PM |
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Ive done a few. Mostly on type 3's. I used the pivots from an IRS type 3. Its not really hard just takes heaps of time. HEAPS of measuring,
welding remeasuring. Getting them in the right place isnt hard. Its getting the angle right. I spose none of it is so hard, just nerve wracking. You
also need to cut out some of the frame horns to install the pivots. I'm not aware of any problems with the ones I have done.
This is becoming an FAQ.
[Edited on 20-7-2003 by amazer]
Chris.... kombi pilot, oval dreamer... finisher #26971 2005 city to surf
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type82e
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| posted on July 24th, 2003 at 10:03 PM |
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found this site about irs conversions
http://www.blindchickenracing.com/How_to/IRSconversion/IRSconversion.htm
marcel
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Phil74Camper
Son of Jim - Creator of Good
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| posted on July 25th, 2003 at 12:14 AM |
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ALL REAR-ENGINED VWs HAVE IRS.
Swing-axle rear ends are still IRS. Each wheel is sprung and suspended independently of the other.
What you're calling 'IRS' is just VW's CV joint rear with four axle pivot points instead of two. The wheels stay parallel as they
go up and down independently.
Earlier swing axle rears have wheels that describe arcs as they go up and down, but they're still IRS - each wheel moves independently of the
other.
ALL REAR ENGINED VWS HAVE IRS.
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Oasis
Custom Title Time!
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| posted on July 25th, 2003 at 12:23 AM |
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How does a Camber compensator work? Do they work, and how well? I don't have a swing axle but just interested.
"Tell him 'We've already got one'"
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lugnuts
A.k.a.: Mike
Custom Title Time!
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| posted on July 25th, 2003 at 02:29 AM |
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Yes they work,they look like a leaf spring upside down,they put more preload on your rear,and i didnt hear this,i got one. |
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Stanley
Compulsive Aussie Vee Dubber
I guess the reward is in the doing of it
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| posted on July 25th, 2003 at 06:35 AM |
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Phil your splitting hairs what you say is true to a point. The IRS is fully independant ie it has two pivot points like Jags and Porches etc. but
unlike the Commodores, one pivot point, look at the early problems they had with tyre wear.
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Phil74Camper
Son of Jim - Creator of Good
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| posted on July 25th, 2003 at 09:54 AM |
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Agreed, the 4-joint CV rear-end on later Beetles, Kombis and Type 3s is a superior IRS system. One CV is the inner pivot point, like a swing-axle
system, but the outer CV is the extra pivot point. They allow the two rear wheels to remain parallel as they go up and down.
Swing-axle rears don't have the outer pivot point; the wheels move in an arc around the inner pivot point at the gearbox. This constantly changes
the angle of the wheels to the road, and each other. Swing axle Beetles also have a more unusual tyre wear pattern.
But the fact remains that both systems are still IRS. One wheel can go up or down on both systems without affecting the other in the slightest -
unlike a solid rear axle design as used in Holdens and Fords until recently. And every Japanese van I can think of.
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