Chassis works chassis build. Freaking finally!

[Robert]

I found a good suspension calculator!
 http://www.racingaspirations.com/welcome

[Robert]

Adrian, I made a scale model using wood, I found some dimensions that keep the hub close vertical through the entire travel. I believe this would give me the most stability during jounce and rebound. What do you think?

Without seeing the model/ numbers it is hard to tell but some camber gain isnt bad, just a few degrees is all that you need

I am heading out to the garage to take some additional measurements. Thank you!

[Digibeam]

When I was first building my frame I tack welded (4), 4" wheels to the bottom of the chassis at the corners of the tub area,  this allowed me to move it about when needed and not pop a disc in the process.

[SchulzeA]

It says 450lbs for the bare chassis on my plans somewhere. It sure seems heavier when you have to move it without wheels!

[Robert]

Super looking chassis, Robert.  Is it as heavy as it looks?   You are probably going to end up with a 65/35 rear/front weight ratio or close to it.  I really don't think that the 400# springs are going to be too stiff.  Your engine/trans package must weigh in at around 700#.

Jim

 
Thank you Jim. I think your right with the spring rates.

[01Lambiero]

Super looking chassis, Robert.  Is it as heavy as it looks?   You are probably going to end up with a 65/35 rear/front weight ratio or close to it.  I really don't think that the 400# springs are going to be too stiff.  Your engine/trans package must weigh in at around 700#.

Jim

[AdrianBurton]

Adrian, I made a scale model using wood, I found some dimensions that keep the hub close vertical through the entire travel. I believe this would give me the most stability during jounce and rebound. What do you think?

Without seeing the model/ numbers it is hard to tell but some camber gain isnt bad, just a few degrees is all that you need

[Robert]

Adrian, I made a scale model using wood, I found some dimensions that keep the hub close vertical through the entire travel. I believe this would give me the most stability during jounce and rebound. What do you think?

[AdrianBurton]

Robert

did you look at thte camber curve for your shortened arms?  you may have to relocate the upper arm mounts to keep the rear from being to darty

[Robert]

Well., I finally finished crunching the numbers for my LS4 in a Chassis Works chassis. I am making the bottom subframe/engine cradle 11 inches wider, and the top section of the rear subframe 2 inches wider. This will give me 1 inch of engine clearance for the trans and engine on top. I am modifying the chassis so the lower section/engine cradle and suspension will unbolt, and removed from the bottom, just like a front wheel drive car. Because the lower control arm is 5.5 inches shorter, I think that progressive springs are in order. With the lower control arms shorter, the leverage/lever factor on the coil overs changed. I don't think 400lb springs are needed, the ride would be too hard.  I am using factory rubber drivetrain mounts. I don't want to feel drive train vibrations.What do my lambo brothers think? I will be posting pics soon.

[italianknightrider]

very nice job , i will be following this frame ,thank you for posting the pic.

[plans4sale]

 Those are some decent welds you did! Very clean and uniform.

[Robert]

Thanks guys, I used a hand brake to bend the parts.

[usmc_butler]

Fantastic work 

[SchulzeA]

  looking good! Did you end up forming your brackets by hand? They look nice.