Hi All!

Just wondering what spring rates people are running. I've got an BEC avon which at high speed (70mph) goes light on the front. I'm wondering if this is because it is sitting down on the rear axle

Any advice on springs or any other possible cause would be appreciated!

Ben

Have you checked your static ride heights front to rear and make sure the rear is higher?

quote:

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Originally posted by benners05
Hi All!

Just wondering what spring rates people are running. I've got an BEC avon which at high speed (70mph) goes light on the front. I'm wondering if this is because it is sitting down on the rear axle

Any advice on springs or any other possible cause would be appreciated!

Ben

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2.0 Zetec. Book Chassis . Live Axle.
250lbs front 120lbs rear

Beware when comparing spring rates as so much depends on the angle at which they are mounted.

Also, you may be paying the penalty of having a lightweight engine, possibly mounted well back?
You can't have your cake and eat it, as they say.


Paul G

Have you considered the shape of the nose, if the lower section just rolls under the opening it could be causing some lift? Maybe add some angled winglets to the side or take a 40-50mm hole saw to the bottom of it so it passes through rather than under it?

Going light at speed points to lift being generated.

The comments above about rake and ride height are true as well.

A piece of flat ali or carbon sheet or similar, attached under the front of the chassis and going all the way up to the nose front or more, supported by the nose will work wonders.

My son did it on his car, and didn't realise just how much downforce this little addition would make. No support, and the thing was bending down and touching the tarmac, and eventually ripped off. He said he could feel the difference with the 'spoiler' missing.

Cheers,
Nev.



[Edited on 11/4/17 by Neville Jones]