violentblue
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| posted on 16/2/05 at 06:30 AM |
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rack positioning
I have a rather odd application, I'm planning on turning my FWD car RWD. It is a vw golf with mapherson strut front suspension.
In order to do this I need to move my rack, the best way to do this I believe is to swap spindles left to right , and make my previosly rear stear
setup front steer (checked this, it shouldn't have any effect on geometry)
as well to lower the position of the rack, the tie rod ends will bolt in from the bottom of the spindle rather than the top.
this should give me enough clearance for the engine.
of course I'll have to replace the rack with a unit that will steer the car in the correct direction, with similar dimentions,
now finally for the question, how do I determine the best position for the rack?
a few pics of my other projects
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James
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| posted on 16/2/05 at 09:09 AM |
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No idea about the rack positioning on anything other than a Locost mate- sorry.
But I am interested in messing around with Golfs! 
Bit of a MKII fan myself. Which model are you converting and what engine/gearbox you planning to use?
Cheers,
James
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chunkielad
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| posted on 16/2/05 at 09:27 AM |
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From a suspenion point of view (to avoid bump steer etc) the pivot point of the rack ball joints needs to be in a line with the pivot points of the
front wishbones when the rack is set centrally. Also needs to be as level and 'straight' as possible.
Apart from that, I've no idea specific to your setup mate sorry.
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theconrodkid
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| posted on 16/2/05 at 09:59 AM |
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if you swap the hubs over all the steering angles will be wrong and it wont handle,been there and still got the t shirt
who cares who wins
pass the pork pies
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Peteff
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| posted on 16/2/05 at 10:51 AM |
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in a line with the pivot points of the front wishbones
It's not got wishbones, it's McP strut. The rack is on the bulkhead isn't it. I can't see how you're going to do it
without making a crossmember of some kind and cutting all the floor out of the car to put a tunnel in. You're on your own with this one I think.
Unless you put a chassis in it the monocoque is going to be like a jelly.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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MikeRJ
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| posted on 16/2/05 at 11:59 AM |
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quote:
Originally posted by theconrodkid
if you swap the hubs over all the steering angles will be wrong and it wont handle,been there and still got the t shirt
Yep, the ackerman angles will be absolutely miles out.
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chunkielad
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| posted on 16/2/05 at 12:35 PM |
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Missed the struts bit sorry!!!
Defo on your own then fella!!!
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James
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| posted on 16/2/05 at 12:44 PM |
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Violent Blue,
See if you can find a friendly Golf Rallye owner who'll let you have a poke around his and see how they do the 4WD. Is it a transverse or
longitudinal engine?
Cheers,
James
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Volvorsport
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| posted on 16/2/05 at 01:18 PM |
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Mount a front mounted rack and hubs ?
something from passat , corrado etc ?
Ill have a chat with my next door neighbours volkskraft about it !
of course if you mounted the engine in the back , you wouldnt have rack problems .
volvo 480 shares same PCD as golf and have a low rack mounted pposition ?
www.dbsmotorsport.co.uk
getting dirty under a bus
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violentblue
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| posted on 16/2/05 at 03:07 PM |
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quote:
Originally posted by Peteff
It's not got wishbones, it's McP strut. The rack is on the bulkhead isn't it. I can't see how you're going to do it
without making a crossmember of some kind and cutting all the floor out of the car to put a tunnel in. You're on your own with this one I think.
Unless you put a chassis in it the monocoque is going to be like a jelly.
been doing some thinking on this one, I had a fella tell me that swapping them side to sidw wouldn't be a problem, but wasn't entirely
convinced, I'll probably use bits from a fox or passat to do the conversion, hopefully they won't need too much modification.
as to the modification of the tunel and integrity issues, well I'm currently running a half cage, and my intention was to tie this into the
structure a little better and allow it to take some of the stress, as well tie it in to the pickup points for the rear suspension (will use a solid
live axle)
the golf Rallye, uses the engine in a transverse layout, so this won't apply (no Rallye's in north america anyway)
a few pics of my other projects
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