Trying to build a Road Course car. I have HKS Hyperdampers Strut tower bars frount and rear, and a 6 point roll cage. Anything that I can do to make it handle better.
Jeff, have you done this? I was thinking about it for a while, but I had no idea of where to put the foam. I knew if I put it in the wrong place it would rust, which could obviously destroy the car.JWatson said:
Foam fill the chassis
This summer Slater, Jack Ingram, and I started researching chassis foam for the side sills, frame rails and frame crossmembers of our cars. We had all heard about Bellco foam from other boards and the tremendous success others had in increasing dramatically the stiffness of the chassis by foam injection. After alot of inquiries, we came up with 2 products to get this job done. There are 2 types of foam products, pourable foam and injectible foam.
The pourable foam is made by http://www.farwestmaterials.com/ and is called FoamIT and comes in 5psi formula and now I'm told a 15psi strength(Higher psi strength is better). Pourable foam is used primarily on the sidesills of the del Sol. You use it because of its superior strength and the side sill are THE critical area to stop chassis flex. Pourable foam is a mess and hard to use and must be poured down into the holes of the side sills before it hardens. You must remove the plastic side sill from your car to access the holes which run along the length of the sills. You must mask EVERYTHING, EVERYWHERE you are pouring the liquid, because it burns and cannot be removed from paint or carpeting EVER!
The other product we used is FoamSeal http://www.itwfoamseal.com which is an injectible foam product that is a 2 part mixture that is released through a rubber tube with a tip and can be injected into the frame rail and chassis members. We used these on the 2 frame rails which run the length of the car and parallel the exhaust pipe down the center of the car. Off these rails, you will see that the rear suspension has rails of each side that go all the way to the bumpers. All of these frame rails have holes spaced out along them and this is where you will be injecting the foam which sprays out the nozzle end. There are many many areas that you can foam including the front suspension rails, the cross brace under the engine and the rear cross brace that the swaybar runs in front of. Jack Ingram also foamed the area under the rear storage compartments which span the del Sol from side to side.
If you are thinking of doing this, be very careful to wear eye protection and old clothes, because its very messy and dangerous if you get any on your face. It burns and then you literally have to sandpaper your skin to get it off.
This was the most significant suspension upgrade any of us had ever done. It is truly amazing the difference in your car with the top off, because the flex is so reduced that it almost feels a sturdy with the top off as with it in place. Look up the websites I've listed and do alot of reading like we did before you get into this. You just have to carefully plan the areas that you are going to do, mask everything!! that you don't want to get foam on, and have alot of newspaper around to catch the foam that leaks out to the floor because its almost impossible to get it off afterwards! Buster
Their web site doesn't have prices, but I'd imagine its more than I'd want to pay.jkbrauch said:Grant - The Recaro SRD type seats are much lighter than the stock seats. I didn't weigh mine before installation, though. They are cloth, as well, and you feel like you don't need seat belts when you're in them...
BalticSupraTT said:Trying to build a Road Course car. I have HKS Hyperdampers Strut tower bars frount and rear, and a 6 point roll cage. Anything that I can do to make it handle better.
Grant - I can get you the Recaros for the same price ($700), last time I checked. Complete setup.Grant said:
Their web site doesn't have prices, but I'd imagine its more than I'd want to pay.
The Corbeau A4s I can get for <$700 shipped to me, brackets and all. Doesn't have a weight, but the Carrera look similar and are 27 lbs. But how much lighter can these be than stock cloth seats? Probably not enough to justify the huge price difference.
Exactly. Get a good alignment and you've got all you need for a great track car. Follow Lance's specs, but add more negative camber up front. Go for at least -1.5 degrees of camber up front if possible.DT said:You've got more than enough car - now just go get plenty of track time! Like another thread in this section mentioned, it's about 50-90% driver (as you probably know!).