I read about Sport Compact Car injecting ITW Foamseal into chassis inclusions and voids of a 300ZX twin turbo, to increase chassis stiffness. Does anyone know anything about this stuff? Does anyone use it or know someone who does? Links to an archived article? I have searched and can't find much of anything.

In case you haven't heard of it either: http://www.itwfoamseal.com/auto_aftermarket.htm

 

skip it.

Warren

 

I won't be building a 300ZX anytime soon, I am just trying to figure out if it is effective enough to bother with. I will be building an 91-94 240sx fastback, seam-welding the chassis, and a simple harness bar and cage to stiffen it up. Its not even that expensive, or a significant weight gain.

 

I'm trying for all the stiffness I can get. With the engine this car will be housing, it won't be in any class but exhibition classes, but I can see how it might be illegal. It is going to use solid spherical bearings, mounts, and pickups with stiff springs.

 

From all reports ive heard( one from a mx5 owner who had numerous bracing before foam, and another from a Hot Version VCD talking about stiffening drift cars): structural foam is excellent in terms of what it sets out to achieve.

The owners said the foam made a bigger difference than seam welding and cage combined (how they could tell this I wouldnt have a clue..), and was also a lot lighter.

It is currently very popular in japan (so all those jdm foo's best go out and grab extra large bottles of it).

The only caution that some owners expressed was that of water absorption into the foam, leading to rust in the future. Havent heard anything else bout it sofar.

Also if you plan on racing your car, its a big nono, not many racing rules allow it.

 

I guess it would be good to cap off and close up holes, it would try to retain water and corrosion promoting scum.

 

If I was actually coherant and cared about hondas, i would not listen to "rembrant" who can't spell his own name. Considering rembranDt has a "D"