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Author: Subject: Best IRS Chassis Kit...
scootz

posted on 4/10/11 at 05:15 PM Reply With Quote
Best IRS Chassis Kit...

Is there an accepted 'market-leader' for IRS chassis kits?

The Caterham CSR gets very mixed reviews for such an exotic piece of machinery, so that's out (even if you had £40k to actually spend on one ). Westfield next? Still pricey though!

Anyone else make a good one at real-world prices?

[Edited on 4/10/11 by scootz]





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chesney321

posted on 4/10/11 at 05:22 PM Reply With Quote
aries motorsport does a good one
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franky

posted on 4/10/11 at 05:37 PM Reply With Quote
when the guys on piston heads drove my car they were impressed and compared it to some very expensive toys. They also thought it was more stable than some expensive stuff.

So i'd stick my neck out and say for a sensible price GKD

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scootz

posted on 4/10/11 at 05:40 PM Reply With Quote
They did indeed seem to like it! Any interest yet?





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phelpsa

posted on 4/10/11 at 05:40 PM Reply With Quote
Westfield would probably be your next look, but high prices again. And I'm not a fan some of their rose joint positions (although they seem to work for all but the very few).

I'm running the Aries one and it's been very good, and was extremely good value for money.

[Edited on 4-10-11 by phelpsa]






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franky

posted on 4/10/11 at 06:02 PM Reply With Quote
quote:
Originally posted by scootz
They did indeed seem to like it! Any interest yet?


A few from our Euro friends but its still here. If it doesn't sell its cool.

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Wadders

posted on 4/10/11 at 06:44 PM Reply With Quote
If your looking at the cheaper end, another vote for the STM/Aries chassis although it does have issues , unless Aries have updated the design since they took over ?. The supplied diff hanging arrangement on the STM kit was poor to say the least, i now have a solid mounted diff which improved the handling and feel no end.

Dax made big claims for their camber compensation chassis, although iv'e never been in one so can't comment..
Westfields drive nice, and seem to do well on the hills, so must be worth a look...
MNR's chassis seems well put together.

As for the CSR, my pockets are not deep enough to comment, but having chased a fair few Caterhams on track days, i'm surprised they get mixed reviews, maybe they are being evaluated on the road, and compared to normal sports cars.

Al.






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phelpsa

posted on 4/10/11 at 06:49 PM Reply With Quote
quote:
Originally posted by Wadders
If your looking at the cheaper end, another vote for the STM/Aries chassis although it does have issues , unless Aries have updated the design since they took over ?. The supplied diff hanging arrangement on the STM kit was poor to say the least, i now have a solid mounted diff which improved the handling and feel no end.


I was planning to sort my diff mount out over the winter. Have you got any pictures?






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scootz

posted on 4/10/11 at 07:05 PM Reply With Quote
Cheers Al...

quote:
Originally posted by Wadders
As for the CSR, my pockets are not deep enough to comment, but having chased a fair few Caterhams on track days, i'm surprised they get mixed reviews, maybe they are being evaluated on the road, and compared to normal sports cars.



Was it CSR's specifically that you've been chasing (as they're the only Caterham model with an IRS).





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TimC

posted on 4/10/11 at 07:24 PM Reply With Quote
What about having a chassis built to your spec by someone who really understands geometry etc?

Will cost more than a Westy though... (ask me how I know.)






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scootz

posted on 4/10/11 at 07:29 PM Reply With Quote
quote:
Originally posted by TimC
Will cost more than a Westy though... (ask me how I know.)








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snapper

posted on 4/10/11 at 08:03 PM Reply With Quote
MNR?





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loggyboy

posted on 4/10/11 at 08:49 PM Reply With Quote
Usual suspects as above, plus the striker, maybe the mk.
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Davg

posted on 4/10/11 at 08:57 PM Reply With Quote
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JohnH

posted on 4/10/11 at 09:32 PM Reply With Quote
I would have said Aries....... Diff mounts are fine on my chassis. They may be at the cheaper end (as you say),but they go together great.
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Wadders

posted on 4/10/11 at 10:55 PM Reply With Quote
If thats the case, then Aries must have re-designed them, cos my titchy 899cc engine kept doing a good job of twisting the diff out of the chassis.......

Originally posted by JohnH
Diff mounts are fine on my chassis.






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Wadders

posted on 4/10/11 at 11:03 PM Reply With Quote
Pic only shows the top mounts, the bottom mount is a piece of RHS with two lugs on welded to the chassis, it was
a retro fit so easily done without stripping the car.

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Originally posted by phelpsa

I was planning to sort my diff mount out over the winter. Have you got any pictures?







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Wadders

posted on 4/10/11 at 11:17 PM Reply With Quote
Probably not Scootz, it's likely they will have been 1400's with a morris ital axle, and a pensioner wearing a flat cap behind the wheel..... did i not mention i have the driving ability of mr bean




Originally posted by scootz
Cheers Al...



Was it CSR's specifically that you've been chasing (as they're the only Caterham model with an IRS).







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phelpsa

posted on 5/10/11 at 06:57 AM Reply With Quote
Cheers wadders, food for thought!






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scootz

posted on 5/10/11 at 07:00 AM Reply With Quote
quote:
Originally posted by Wadders
Probably not Scootz, it's likely they will have been 1400's with a morris ital axle, and a pensioner wearing a flat cap behind the wheel..... did i not mention i have the driving ability of mr bean




Originally posted by scootz
Cheers Al...



Was it CSR's specifically that you've been chasing (as they're the only Caterham model with an IRS).










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nick205

posted on 5/10/11 at 10:09 AM Reply With Quote
The Dax chassis is De Dion isn't it? From memory it uses quite a neat A arm at the top and more substantial lower trailing arms.






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