Mk2 Golf Rear Suspension Diagram
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Discussion Starter · #1 ·
So, just wondering. Has anyone seen or done an independent rear suspension in a mk2? Either some kind of graft from another car or one off fabrication? Looking for ideas!!
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Why?
The front needs a lot better camber curve than the rear. The rear needs the grip reduced, not improved, for most of us.
IMHO. MM
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Re: Independent rear suspension for mk2? (Whitsend)
my mk2 has independent suspension. it handles better than any comparably equipped non irs mk2.
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Can you post some pics?? It must have some roll toe steer to improve the overall handling.IMHO. TIA, MM
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Re: (flyinglizard)
i dont have the alignment measurements right now. It does have a bit too much camber, but i'll be building custom cro-mo rear control arms so i can dial in camber and toe.
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Remove the center drive shaft and let us know if it handles better than an equivalent beam axle car.
You see what you have there is an orange. The original poster is asking about apples.
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Re: Independent rear suspension for mk2? (Whitsend)
Planning on going racing?
Oh, and apparently I don't know what the one thing is...
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Re: (chois)
| Quote, originally posted by chois » |
| Remove the center drive shaft and let us know if it handles better than an equivalent beam axle car. You see what you have there is an orange. The original poster is asking about apples. |
actually. so little power goes to the rear, that is has minimal impact on handling (yes, i've driven it in 2wd). the big difference of course, is my ability to accelerate out of the corner.
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Re: (TBT-Syncro)
I have an independent rear in my mk3, here is the build thread; the IRS related stuff is all mixed in with the rest. I used a mk3 front suspension in the rear, with some mk2 parts to adjust the track width.
http://forums.vwvortex.com/zerothread?id=4583881&page=3
My goals and end result were quite different, but the same concept has been used successfully in racing cars.
If I was building for performance rather than a bangin' fanboy stance, I would have:
1) Raised the ride height significantly... about 6" higher
2) Spherical bearings in the rear control arms. Since the arms are mounted in reverse, the bushing deflection isn't working as originally designed. Making them solid eliminates this variable and potential problems. Even R32/poly hybrids would be fine.
3) MK3 2.0 lower control arms rather than mk2 arms. Or even a mk3 VR6 complete setup. The longer arms would contribute to better kinematic roll center control and better camber curve
4) Larger rear swaybar. Deleting the beam - which is itself a huge swaybar - also removes a lot of the rear roll stiffness.
5) Built a cage into the car. I reinforced the chassis a lot, but wanted to keep everything below the stock carpet/seats/interior so I was very limited. Converting from shocks to struts in the rear really changes the loading in the unibody, a full cage would minimize any problems.
6) Different spring rates and longer Konis, or maybe Bilstein inserts.
My car obviously wasn't built for maximum grip, but it drives well and handles just fine on the street. The alignment is good and bumpsteers aren't bad; it doesn't pull or drift and takes corners better than you would expect for the height.
Modified by Afazz at 10:29 AM 12-2-2009
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Re: (TBT-Syncro)
| Quote, originally posted by TBT-Syncro » |
| actually. so little power goes to the rear, that is has minimal impact on handling (yes, i've driven it in 2wd). the big difference of course, is my ability to accelerate out of the corner. |
I would expect it has a big impact on handling - if you are driving at the limit. Does the system not transfer additional power to the rear when needed?
A properly set up fwd race car is only using the rear wheels/axle to keep the bumper off the ground. They see very little brake load, and contribute little side load. A properly set up and driven awd car will make much more use of the rears for a few key reasons. The simple one is that there is more weight on them, and of course they are able to put power down during the corner, and during corner exit.
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Re: (chois)
| Quote, originally posted by chois » |
| I would expect it has a big impact on handling - if you are driving at the limit. Does the system not transfer additional power to the rear when needed? |
it's 90/10 by default, and in most circumstances. It only transfer power to the rear when the fronts are spinning (to a max of 50/50). It definitely puts power to the rear on wet days, but on most dry days, the LSD keeps the front fairly planted, and not a lot of spin happens.
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I am developing the "dynamic rear steer", for the Chump car and the FSP car. Or active toe control. MM
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Re: (flyinglizard)
| Quote, originally posted by flyinglizard » |
| I am developing the "dynamic rear steer", for the Chump car and the FSP car. Or active toe control. MM |
That sounds pretty cool. Do you have more info on that?
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I have two levels of the DRS system. The design may be patentable. Either way, the details will be included in the" FWD Racing Guide" .
I have yet to run back to back testing with the latest system. We have just the IT and solo legal, series one system.
It is just for the twist beam MK 2-4 cars.
The Mk 1 cars have too small of axle bushing, at first look. I have not done any work on the Mk 1 and dont currently race any Mk 1 stuff.
I hope to include the pics of the Chumpcar system and maybe the FSP car, in the book. (When I say "Book" , It is a digital book)/
MM
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Re: (flyinglizard)
IRS on a mk2... all you are gonna do is put stiff springs and a sway bar making the rear as solid as possible anyway. It is a independent if loosely worded it's def not a solid axle.
I would put my Jetta against a synchro set-up anyday. Curious to see the difference...
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Re: (Afazz)
| Quote, originally posted by Afazz » |
| I reinforced the chassis a lot, |
What reinforcement did you use and where? I am interested in upgrading my Mk1.
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Re: (DAVEG)
Did you click the link I posted? There are dozens of pictures of everything. I added A few crossmembers, some diagonals, and a bunch of reinforcement plates welded to the chassis rails. Nothing major, but lots of little stuff in effort to make improvement over stock.
Source: https://www.vwvortex.com/threads/independent-rear-suspension-for-mk2.4605348/
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