steveholmes
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| posted on 5/6/06 at 08:47 PM |
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quick rack
I have BEC MK indy, and i am looking into fitting a quick rack, I can nearly catch the big slides but would like quicker response from the car.. Any
ideas anyone. Where from etc.. and the car has not yet been SVA'd would a quick rack matter.. IT has a hard life thrashed round elvington
mainly once a month.. oh its black with R1 engine
Thanks everybody
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Jon Ison
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| posted on 5/6/06 at 08:53 PM |
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Mk do quick rack internals I believe, personally I don't like them for track use, get me into more trouble than they get me out of, but its
personal choice.
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wilkingj
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| posted on 5/6/06 at 09:29 PM |
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I must admit I like mine, but at 70mph+ it gets a bit over sensitive, and have managed a couple of wobbles at speed, which were a bit scary,
especially as I was on the M25
Forgot to say I got mine from Rally Design or GTS... cant remember which.
[Edited on 5/6/2006 by wilkingj]
1. The point of a journey is not to arrive.
2. Never take life seriously. Nobody gets out alive anyway.
Best Regards
Geoff
http://www.v8viento.co.uk
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nitram38
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| posted on 5/6/06 at 11:44 PM |
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Quick racks have little to do with wobbly moments at speed because if you reduce the number of turns, lock to lock, it increases the effort required
to turn the wheels.
I would suspect that your sensitive steering is caused by not enough castor angle.
My rack is a custom made titan one in cast aluminium. It cost £250, but for that I got a ratio of 1.25 turns lock to lock and ball joint swivels at
the distance I required. This put the turning moment in the right place to stop bump steer.
[Edited on 5/6/2006 by nitram38]
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omega0684
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| posted on 6/6/06 at 12:27 AM |
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rally design do a 2.4 turn escort quick rack for about £80 plus p&p
I love Pinto's, even if i did get mine from P&O!
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smart51
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| posted on 6/6/06 at 06:58 AM |
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There are quick racks and quick racks. If you currently have 3.4 turns lock to lock and want fewer but think that 2.4 is too few, find a 2.9. I
little bit quicker may be all you need.
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procomp
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| posted on 6/6/06 at 07:57 AM |
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Hi also be carfull as some people put lock stops in to reduce the amount of travel but do not give a higher ratio. But still sell them as quick racks.
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mookaloid
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| posted on 6/6/06 at 08:46 AM |
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I have a quick rack in my indy and wouldn't go back to a standard one.
It makes catching slides easier and you are in with a chance of not having to take your hands off the wheel (wheel shuffling)I have not noticed any
lack of stability at speed as a result of fitting the rack.
Go for it!
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ned
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| posted on 6/6/06 at 09:14 AM |
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imho instability would be due to bump steer or other geometry issues which would be extenuated back to the steering wheel by a quick rack.
but 1.25 turns lock to lock nitram38 OMG!!
beware, I've got yellow skin
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nitram38
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| posted on 6/6/06 at 09:49 AM |
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Ned, 1.25 sounds bad but my car is rear engined so the steering is lighter than a 7.
Also I sit in a very compact cockpit, so wheel shuffling is not nice!
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Jon Ison
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| posted on 6/6/06 at 11:25 AM |
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<------ That pic too the left, 180* haipin at mallory, std rack hands dont come off the wheel, well only too change up on the way out, I can get
away with a slight "twitch" of the wheel during gear change as the power goes on, maybe not with a quick rack ?
Like I said its personal preference but with quick racks people do tend too over compensate and get into tank slapper mode.
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