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Centre fix steering rack?
Delinquent - 25/9/07 at 08:32 PM

Anyone know of any centre fix steering racks? Having a central driving position it seemed a bit daft going for an offset rack!

Cheers


Richard Quinn - 25/9/07 at 08:52 PM

I'm guessing it's a centre fed rack you're after. Try Geoff Berrisford or any of the other Autograss builders. If you are having trouble U2U me and I'll put you in touch with a guy near me who does them.


nitram38 - 25/9/07 at 08:52 PM

Titan motorsport, handmade but £470

Description
Description


RazMan - 25/9/07 at 09:44 PM

I was going to suggest Titan too - excellent racks


Delinquent - 25/9/07 at 10:01 PM

cheers

I actually stumbled upon Titan shortly after posting, discounted as there website suggested a remortgage would be necessary, but that's not too bad! Also been suggested Jack Knight on another forum so will contact them both tomorrow.


nitram38 - 25/9/07 at 10:15 PM

The advantages of your own rack are:
1.) You can chose the pivot points so they line up with your wishbone pivots and prevent bump steer. (My rack is inline with the top wishbone and pivots match the inboard bolt centres).
2.) You can chose your own ratio (mine is 1 turn lock to lock)


Delinquent - 25/9/07 at 10:21 PM

quote:
Originally posted by nitram38
The advantages of your own rack are:
1.) You can chose the pivot points so they line up with your wishbone pivots and prevent bump steer. (My rack is inline with the top wishbone and pivots match the inboard bolt centres).
2.) You can chose your own ratio (mine is 1 turn lock to lock)


2 very good points - the first... well I was looking for a rack before trying to find someone to help with the suspension, for precisely that reason. The other way round would obviously be preferable

the second. Flick me 1 turn?!?!?!


RazMan - 25/9/07 at 10:28 PM

quote:
Originally posted by nitram38
You can chose your own ratio (mine is 1 turn lock to lock)


Blimey! I thought my 2.4 turn rack was too quick! Thats going to be as twitchy as hell isn't it?


nitram38 - 25/9/07 at 10:31 PM

Only twitchy if your castor is wrong.
If you put the right amount of castor in your set up, then driving with a one turn rack means that driving out of corners is a breeze.
You don't have to take your hands off the wheel unless you need to change gear, which is the correct way to drive, plus no crossed arms either.
With good castor the car also drives straight and with the turn ratio, you only have to think about changing lanes on a motorway and it is done!
The F1-2 has a 1 1/4 turn and has brilliant feedback through the steering.
The only problem is if you try manouvering in a tight space without the car moving, but you soon get used to this and start turning while you are still rolling.

[Edited on 25/9/2007 by nitram38]


blakep82 - 25/9/07 at 10:36 PM

are you going to be putting the car through SVA?

with the central driving position, i guess the engine's going in the back, plenty of room up front for the steering collumn, if you used an offset one, your column could have 2 UJs and a high angle, meaning you don't need to worry too much about the collapsable shaft, and won't need to pay out for a custom one although it would look at bid if you can see it.

every cloud?

just a thought


nitram38 - 25/9/07 at 10:37 PM

The reason I have gone for a centre rack is for the steering safety offset as the MotaLeira will be RHD
On the F1-2 I had a centre rack because of the single centre seat, but you can just see two UJ's which give angle changes and was acceptable for sva.

new sloping side panels
new sloping side panels


[Edited on 25/9/2007 by nitram38]


blakep82 - 25/9/07 at 10:42 PM

^ like the same (but opposite?!) to what i said?


Delinquent - 25/9/07 at 10:53 PM

quote:
Originally posted by blakep82
are you going to be putting the car through SVA?

with the central driving position, i guess the engine's going in the back, plenty of room up front for the steering collumn, if you used an offset one, your column could have 2 UJs and a high angle, meaning you don't need to worry too much about the collapsable shaft, and won't need to pay out for a custom one although it would look at bid if you can see it.

every cloud?

just a thought


funny you should mention that

yes it's going to be SVA'd eventually, and the 2 UJ's will be used, partly for the collapsible column point of view, but also because my feet will be sitting pretty much on the axle line of the front wheels, so it'll be going out then down, if you see what I mean.


NS Dev - 27/9/07 at 12:14 PM

As everybody has gone down the Titan+Jack Knight route, go back and read Rich Quinn's post!!!!!!!

Geoff Berrisford does these for £150 which are just as good, just slightly heavier:



Delinquent - 27/9/07 at 12:16 PM

quote:
Originally posted by NS Dev
As everybody has gone down the Titan+Jack Knight route, go back and read Rich Quinn's post!!!!!!!

Geoff Berrisford does these for £150 which are just as good, just slightly heavier:





I've been meaning to come back and ask Rich about that - I haven't turned up contact details for GB yet - do you have them to hand?


NS Dev - 27/9/07 at 12:19 PM

This should sort you:

Berrisford Link


Delinquent - 27/9/07 at 12:20 PM

lovely job, thanks.


blakep82 - 27/9/07 at 03:40 PM

http://www.berrisford.co.uk/product_info.php?cPath=42_49&products_id=72&osCsid=q345vk338an953dqktsi4cc7l4

any good for road use?!


NS Dev - 27/9/07 at 04:24 PM

don't see why not, but it would be at your own risk obviously!!!

They stand a huge beating on track without failing, but obviously never complete that many miles in total

Certainly very well made, as is everything from berrisford, sorry to say his stuff puts "kitcar" stuff to shame from many (not all! ) suppliers.

He does ally hubs for them and all manner of other bits and bobs, iirc a complete front hub set with uprights, ally hubs, bearings and adapted bike brake discs is around £250.


blakep82 - 27/9/07 at 04:29 PM

not for me, but others on here. £44 each seems a great price.

I've already got mine sorted, mine are from a bedford midi