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Author: Subject: Rack type
55ant

posted on 16/4/10 at 08:18 PM Reply With Quote
Rack type

Hi all,

did this track day today and although its my tallent not the car holding me back, i really felt i had to mess around with the wheel alot, how can i tell what rack i have fitted? im guessing its a simple swap for a quick rack?





away from cars, now cycling and building TT bikes

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nick205

posted on 16/4/10 at 08:43 PM Reply With Quote
Put it full lock one way and count the number of turns until you reach full lock the other way. Standard Sierra rack is about 4 turns IIRC. Quick racks are around the 2.5-2.7 turns (again IIRC).

You can buy a kit of rack rod and pinion to modify your existing rack or a complete quick rack for an easier change.

NB - if you have a modified/shortened rack as fitted to Indys then you'll need to buy a kit and cut down the rack rod to suit or speak to MK for a pre-modified quick rack.

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britishtrident

posted on 17/4/10 at 10:25 AM Reply With Quote
Quick rack will make the car more pleasant and easier to drive on the track, but it could be a car setup or driving style issue.

Don't over drive the car, if you get a clean entry to the corner you shouldn't have to work the steering too much. Most drivers taking a RWD drive car on a track day for the first time still have FWD driving mind set and drag the brakes into a corner. Make sure yo get braking over with in a straight line, with a RWD aim to hug the outside of the track until the exact point corner starts, at the point you should be off the brake and only then start to steer into the corner.

[Edited on 17/4/10 by britishtrident]





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Angel Acevedo

posted on 18/4/10 at 01:08 AM Reply With Quote
Use search function for steering quickener.
it may be easier to install and cheaper than a new rack.





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