[el paradiso]

Ah, the tyranny of time...and changing one's mind.
My '32 roaster was conceived to be a tad nostalgic; mild 392 hemi, TF 727, Halibrand QC so a tri-angulated 4 bar seemed ok.
Now the wheel has turned and 'motorvation' comes from a 392 +30thou, 6.71 blower, and 8 port efi (all BDS gear), bigger cam, etc etc. Mucho more grunt is now the result.
I'd like some advice on whether the tri-4 bar will cope with the power or if I should consider ladder bars and a panhard rod or..?
I certainly don't want to be leaving the Quickie on the street the first time I nail it?
Any first hand advice?

[302 Z28]

Considering you plans, I would go with a traditional 4 bar setup with a panhard bar.

Vince

[david4991]

i would go with a parallel 4link with a panhard or even a watt's link. the bushings or heims on the upper 2 bars that are triangulated will hate you after launching it hard a few times.

[xntrik]

I don't think that the tri-bar design is bad. What is more of a consideration is if the bars themselves are stong enough to hold the power. If you make new bars and brackets, consider heim joints, or at least urethane.

Are you going to hang a 9 ?

[david4991]

its by no means a bad setup, just a parallel 4link would be better IMO. My triangualr 4link has 1.5 OD x 1/4" wall upper bars and 2x2x1/4 wall lowers. I have urethane bushings on the ends not on the axle and super pivot bushings on the axle. I like my tri 4link setup, but for a vehicle with more power, the stress on those ends would be alot.
all of my mounting tabs are also 1/4" too.