Shawn's Chassis
 

Started as a Corvette, which I cut in half. Who wouldn't want to cut a Corvette in half?

Sorry I haven't been following the project, what type of track car is this?

Cool project... Neat... :)

Building this to NHRA spec. for E.T. 1/4 mile, might have it certified SFI in the future when he goes for big power. At first it will be a mild gas engine then he plans to build an alcohol engine, then possibly add a supercharger. Along the way he's shooting for a 140 mph car.

Thats a cool project.

Thanks guys. Mocked up the 4 link and wheelbase, coming up as 28" bars and 116"W.B., not what we were expecting and have to mull this one over. The car started as Corvette build into a chassis build for a Viper body. Both short in the back long in the front. The fiber glass body is a Beretta we plan to put a Lebaron front end and rear lights on, probably why my boss calls me the "Butcher of Dorchester".

So it's adjust everything and do plastic body work, both things I don't want to do, and the front of the cage matches the front shape and angle of the windshield and door hinge mounts, big bonus.

My option is to make a longer roof line girder frame rail like in the Pro Stock, Pro Mod cars to carry the further back spring mounts. I still have 50ft of 1 5/8" tube to put in the car, getting more smaller tube and more cutting/notching is not what I am looking forward to.

This is like building a set of headers, at the start my enthusiasm is high, half way through I start hating it, love the welding but not the fitting.

Took a photo of the problem, 3/4" square tube pieces with 1/2" hole to recreate 28" 4 link bars.

Hummmm... 28" is about the max on a 4 link bars as far as my under standing. But that was bases on 110" W.B.
Is this more because the body lines up better?

I started at the windshield where the angle, shape and where the A pillar and door hinges line up beautifully with the front vertical cage tube. Going back from there you would have to add a foot to the cage length to match the body, small passenger compartment Corvette/Viper.

Looking at the picture, imagine moving the front 4 link brackets back to make the bars shorter, so saw through the cage move it and driver back 6-12", or push cage back as is and have firewall tube pieces in the door opening.

If I alter the cage and he does get a Viper body, which I'm sure he will, it's cut and change it back. I looked at it this afternoon and the girders with long bars will work. Viper time will be shorter bars move springs forward and cut the too long back off.

I spoke with Shawn and now he says build it the way you want "you can build it better than I ever could". Still mulling it over and open to suggestions.

Neat way to approach that kind of build... :)
You have lots of stuff to fit and fabricate...
I'm on the edge of my seat... :)

This is what we came up with.

Looks great from what can be seen....

:thumbsup:

They say "clothes make the man" I agree. Got 10 more feet of tube in today, only 30 feet to go.

LOL.... I can see more than that you will use... Looking good Mr. Welder !!!!!!
Cant wait to see what it weight is... :)
75/25 on the Argon Gas ????

Yes, mixed gas and .035" wire.

Borrowed Strange 6" shocks for mock up. Need to tip front 4 link bracket back to get radius of top holes to match bar movement when adjusted.
I'll start sending medium sized pictures because when you click on them they come up larger and easier to see like this last one.

Looks like your making good headway... :)

Are you Mig or Tig welding all those joints?

Mig, mixed gas, .035" wire. The car we bought came 1 3/4" x .120" DOM, my main frame rails and other main structural pieces are 1 3/4' x .134" DOM (60ft), the rest is 1 5/8" x .120" DOM (72ft), then there is some 1 1/2", 1 1/4", 1" x .120" crew tube (40ft) for cross bracing.

Wow... That took some time to fit !!!!

Good Helper.... lol