MK07FUN Posted November 6, 2013 Share Posted November 6, 2013 been watching Caterham Drift Experience Day videos to help me finalise xmas list ... but all the cars on there ride twice as high as mine ... made me think ... not sure what the "right" height is. Open forum: your thoughts?!! Link to comment Share on other sites More sharing options...
myothercarsa2cv Posted November 6, 2013 Share Posted November 6, 2013 I think the general rule is high enough to roll a coke can under the sump, and rake as desired. That should get you over most stuff. More rake = more back end fun, which is why the CDX cars may look higher. Link to comment Share on other sites More sharing options...
Guest Posted November 6, 2013 Share Posted November 6, 2013 I did a CDX experience a few weekends ago. From speaking with Sam, she said that the front shocks on CDX cars were set to their lowest position, hence the nose-down stance. Link to comment Share on other sites More sharing options...
Eugene Posted November 6, 2013 Share Posted November 6, 2013 This may help: Suspension and Roadholding The basic being set the front lower wishbones parallel to the ground, with some body rake set with the rear dampers, as defined in the article. Link to comment Share on other sites More sharing options...
CanAm Posted November 6, 2013 Share Posted November 6, 2013 Quoting myothercarsa2cv: I think the general rule is high enough to roll a coke can under the sump, and rake as desired. That should get you over most stuff. More rake = more back end fun, which is why the CDX cars may look higher. From 2007! Quoting Ray Pearce: Hmm, for road use I set mine up so that a coke can will roll under the sump but a wine bottle won't. Very unscientific but these were the tools that were to hand at the time Link to comment Share on other sites More sharing options...
myothercarsa2cv Posted November 6, 2013 Share Posted November 6, 2013 Ray is clearly a very influential chap 😬 Link to comment Share on other sites More sharing options...
Violet Elizabeth Posted November 6, 2013 Share Posted November 6, 2013 Or just drinks a lot Link to comment Share on other sites More sharing options...
CB Posted November 6, 2013 Share Posted November 6, 2013 For what it's worth - the "legal" minimum in the race series is 120mm under the front chassis bar where the back leg of the front wishbone meets it. And that feels quite low enough... Link to comment Share on other sites More sharing options...
AntonyH Posted November 6, 2013 Share Posted November 6, 2013 Quoting Grant_7: I did a CDX experience a few weekends ago. From speaking with Sam, she said that the front shocks on CDX cars were set to their lowest position, hence the nose-down stance. Yes, I've been to a couple (one as spectator, one as participant) and the CDX cars have the front end set low and soft for grip and the back end jacked up high and stiff for exactly the opposite. So don't use them as a model of how to set yours up for the road! Link to comment Share on other sites More sharing options...
Z3MCJez Posted November 7, 2013 Share Posted November 7, 2013 Quoting CB: For what it's worth - the "legal" minimum in the race series is 120mm under the front chassis bar where the back leg of the front wishbone meets it. And that feels quite low enough... Depends on your race series, although I agree that this is what the Graduates and the Official Series (except Academy) run to. There is definitely an advantage to running a bit lower than this on track, but there are already certain corners where I ground the side impact bar, such as the first chicane at Oulton and the second chicane at Combe. I would not run a car on the road at that level though. You're not after the last couple of tenths on the road. I'd want at least 140mm on the equivalent measurement. Jez Link to comment Share on other sites More sharing options...
Michael Downing Posted November 8, 2013 Share Posted November 8, 2013 Agreed. Mine is set to 120mm (having done Roadsports this year) and it grounds out on several local speed bumps. I also ground off the top of the outer two passenger seat bolts on the entry kerb to Druids at BH... Link to comment Share on other sites More sharing options...
Birkin S3 ZA. Posted November 15, 2013 Share Posted November 15, 2013 I have just got my car back from being setup after lots of changers I have done moving things around and changing from a Zetec to a dry sump Duratec. It is now set to 105mm under the front rail 120 under the back it now has 85mm under the bell housing and that's 5mm more than the Zetec. It has now got 50/50 front to rear and 50/50 side to side if I fit 7 kg to the passenger side and me in the driving seat. It also has 1/2 deg camber on the rear and 1 deg camber at the front, a small amount of tow in at the rear and a small tow out on the front. The car now weighs 565kg without me and with 20l of fuel. The car should now handle much better and corner flatter according to the guy who sets it up, It certainly looks much better at this height. Fingers crossed next race 4 weeks time 😬 Link to comment Share on other sites More sharing options...
captain chaos Posted November 18, 2013 Share Posted November 18, 2013 Birkin... What rubber are you running please ? Link to comment Share on other sites More sharing options...
Birkin S3 ZA. Posted November 19, 2013 Share Posted November 19, 2013 Captain, they are Dunlop Derezza 03G H1 or R1 (soft) 195/55/15" there the control tire for our races and cost about 50 quid each 😬 I would like to run something wider at the rear on the road as it now feels loose with more power Link to comment Share on other sites More sharing options...
Z3MCJez Posted November 19, 2013 Share Posted November 19, 2013 I love the fact that you can do what you want to the car, but there is a control tyre! Jez Link to comment Share on other sites More sharing options...
Birkin S3 ZA. Posted November 19, 2013 Share Posted November 19, 2013 Jez, our minimum ride height is 40mm for any part of motor or chassis with driver. That's very low and I would need to drop another 40mm for that measurement, and there are some restrictions in all the classes on what we can do. Link to comment Share on other sites More sharing options...
captain chaos Posted November 19, 2013 Share Posted November 19, 2013 I was interested in the amount of front camber you are running and if the tyres were radial or cross ply... Link to comment Share on other sites More sharing options...
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