expanding foam into subframe and chassis???

Thanks for all the feedback on this 1 lads!! still not 100% sure what to as I plan to fully seam weld car,re-jig the cage and few other bits in Winter..It is time to get use out of the car now

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Originally Posted by Diesel-Dick

YouTube - Mythbusters AB foam prank

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some video lad, shows you how SOLID the stuff is :)

For a competition car, what about just doing everything?
Cage, seam weld and fill the sill and chassis cavities with foam :)


As long as the chassis was clean and no rusty or other debris inside the cavities, I don't see how it could cause any problem with rust etc.
If the shell was dipped and then filled with foam where needed, it would be the right job!!!

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Originally Posted by DaveM-sport

For a competition car, what about just doing everything?
Cage, seam weld and fill the sill and chassis cavities with foam :)


As long as the chassis was clean and no rusty or other debris inside the cavities, I don't see how it could cause any problem with rust etc.
If the shell was dipped and then filled with foam where needed, it would be the right job!!!

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your right your right, no cutting corners! only ting I was thinking, would it be ok to seam weld the underneath as in round the chassis legs after filling them with foam??

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Originally Posted by Derk

Fill them with concrete lad........ It'll stiffen her up and save ya money on lowering springs :wink:

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thats some funny shit ...maybe a couple bags of coal too to be hella flush lol

Ye alot of jap people do it in there drift car s power vechiles did it in there red s13 for ridge abilaty or some thing like that its ment to be like bracing the chassis legs iam in the process of putting it down mine from the front all the way to the back

The Chaser's Chassis is Filled with Foam. Definitely benefits rigidity.