Just finished up my Z28 and want to start on my RS. My question is how much power will the chassis take before damage. Im putting in a SB that dynoed out just over 590 hp, 580tq. I want to keep this car streetable with no cage. Would SFC's handle the job or am i going to need more to hook it up. 4 pt or 6 pt? The motor is going to be tied with a front plate. Its going up to a turbo 350 trans 4000 stall, to 12 bolt with 4.10's and a 30' tall slick. Im going to run 10.5' to 11' on the rear. Will the chassis handle this without a cage.
BTW. Car is a 92 RS with hardtop.

 

if u dont want a cage, i would do the spohn sfc's as well as the alston bolt on inner sfc's.

those two sfc's sets combined should work very well and keep things in check.

i would add in a strut tower bar in the engine bay also.

 

580 lb-ft of torque?!? That's gonna be a fun ride!

Now this isn't a flame in any way, but I don't see why you're dead-set against having a cage. I think you're pretty much guaranteed to get about one pass down the track before they ask you to park it until you have a cage... And I'm thinking that the bit of add'l weight that the cage adds will be MORE than offset by having the car more rigid, & the chassis more predictable...

(Of course, I could be way off-base too, that's happened once or twice...)


(EDIT: OK, going back & re-reading his post, I see where he wrote "I want to keep this car streetable with no cage" & I can understand not wanting a cage on the street - if [God forbid] you get T-boned, your head goes sideways, & even if you have padding on the top bar, you're probably going to need a bit more than Excedrin.

My best suggestion in that case -thinking out loud here- would be to try for a minimal cage, maybe see if you can get the vertical bars behind the front seats "angled back" a bit, so that if someone rear-ends you, your head passes under the bar...

My gut is telling me that the power you're making is going to be all that two sets of SFCs can handle, & then some...)

 

i had just over 400 at the wheels and started getting cracks in certain body pannels so i added a cage. i'd put it in and go with it until you need to add more. sfc's are always a must anyhow.

 

Well I want the car to look as stock as possible. Will a 4 cage do the trick? 8 point with swing out door bars is the farthest I wanna go if i have too.

 

if you truly have that much power you'll probably want something.. is it necessary? no. then again it's all opinion.