expanding foam into subframe and chassis???

[B&G Extreme Drifting]

can anyone give me info or tips on what is the story on this and benefits of this?? I just heard bit about it and I dont have a clue really..

Thanks lads

[grimix180]

wouldn do it lad it will hold moisture and cause rust

[B&G Extreme Drifting]

wouldn do it lad it will hold moisture and cause rust
is that speaking from experience mate?

[pole drift]

It's been done to my car before I got it, supposed to be just as good as seamwelding and the foam itself is solid, the type of foam it is i can't see how it'll absorb moisture but I could be wrong

[B&G Extreme Drifting]

It's been done to my car before I got it, supposed to be just as good as seamwelding and the foam itself is solid, the type of foam it is i can't see how it'll absorb moisture but I could be wrong
yea I have heard it reduces drag & increases someting else... Im sure if it was to be done could the holes etc not be fully sealed as in weld them up etc eliminate water from getting in??
all comments are welcome on this 1, as I said I dont really have a clue thats why I am asking, to be educated thanks

[JStone]

Unless you want the car to float I wouldn't :)

It's also toxic if it go's on fire!

[way2fastforu]

used to see alot hondas that came in from jap land that had the sills filled wit it
im guessin its jus bein done to re-inforce sills an chassis legs to stiffin it up

but as said above its toxic if it goes on fire and seam weldin will make the car alot stronger

[B&G Extreme Drifting]

Unless you want the car to float I wouldn't :)

It's also toxic if it go's on fire!
cheers john thanks.. I could tie a few ballons to the car :) :)
I jus said id throw it up cause did'nt know much about it. leave it for min anyways,loads to be at, I can be fairly toxic myself at times ha :)

[pole drift]

Toxic.... Yes!!!

[Derk]

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

[gofaster_s13]

It's a drift car, the shell will most likely be thrashed before rust becomes an issue, a lot of the expanding foam is fire retardant the proper stuff is used as a fire barrier around pipes and ducting in buildings and isnt toxic when burned. It is a cheap, cost effective way of very noticeably increasing the stiffness of a car.

[git]

No offence but dont try to defend using expandin foam ha just do the.common modification a cage! Simples

[pt_y2k]

My sills in the 86 are filled too...:)

[podge]

My sills in the 86 are filled too...:)

makes it easier fill the rot holes wit filler lol

[skelly]

Its supposed to add structural rigidity while addi g very little weight spoon do it to there track cars i had d old tuning factory integra and it was done to dat

[gofaster_s13]

No offence but dont try to defend using expandin foam ha just do the.common modification a cage! Simples

Do both

[B&G Extreme Drifting]

jaysus lads theres good response with this question but its kind of a half half situation some lads are dragging 1way & others the other way HARD TO KNOW REALLY. Do any of the PRO drivers do this..I heard alot do it in formula D & in japan. i dunno i dunno :)
cage is in stacks upon stacks of cash ago, 1st ting ya do really

[will_c]

makes it easier to fill the rot holes wit filler lol

i like this answer, im off to b and q :P

[Seamie tc]

half of the cams that came in from england where fill with foam.

[Diesel-Dick]

YouTube - Mythbusters AB foam prank (http://www.youtube.com/watch?v=Xk_gojAEwJA)

[B&G Extreme Drifting]

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

[B&G Extreme Drifting]

YouTube - Mythbusters AB foam prank (http://www.youtube.com/watch?v=Xk_gojAEwJA)
some video lad, shows you how SOLID the stuff is :)

[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!!!

[B&G Extreme Drifting]

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!!!
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??

[20vees]

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

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

[JDM]

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

[Chuck_g]

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