Centre of Gravity Height

[Iowstratos]

Hi
When I upgraded my brakes on my Hawk I went on the fact that the weight distribution front to rear is 40/60 just like a F1 car.
This give 55/45 brake forces so I fitted equal size and power brakes. For the balancing I only needed to put in a adjustable limiting valve to the rear.
This setup works very well and tested on the dirt and track, and easy to do on any Stratos.

For and ideal setup the rears need to grab first to reduce weight transfer from the rear, but with equal force which is hard to do.
Ian

[Keith]

Hi
When I upgraded my brakes on my Hawk I went on the fact that the weight distribution front to rear is 40/60 just like a F1 car.
This give 55/45 brake forces so I fitted equal size and power brakes. For the balancing I only needed to put in a adjustable limiting valve to the rear.
This setup works very well and tested on the dirt and track, and easy to do on any Stratos.

For and ideal setup the rears need to grab first to reduce weight transfer from the rear, but with equal force which is hard to do.
Ian

Thanks Ian,
That's just the kind of info I was looking for. Can I ask what caliper piston size you ended up with and what master cylinder set-up you use?
Cheers, Keith

[Iowstratos]

Hi Keith
I went for HiSpec 285 Billet 4 brakes with the standard Fiat 131 Hawk setup. The rear calliper has a built in handbrake.
Ian

[westonTB]

Mine is standard Alfa 156 2.5, with a Willwood brake bias adjuster, wound all the way to the back & locked off for the IVA , braking is very good... even when I deliberately ask too much!
Not too scary so far...

[Keith]

Mine is standard Alfa 156 2.5, with a Willwood brake bias adjuster, wound all the way to the back & locked off for the IVA , braking is very good... even when I deliberately ask too much!
Not too scary so far...

Thanks Tim,
I think I'm probably going to start with the carry-over set-up and look at a rear brake upgrade post IVA. I think in that case a bias adjuster (to reduce pressure to the rear brakes) shouldn't be necessary. If you had yours adjusted for full rear pressure that makes sense.
Cheers,
Keith

[Keith]

Hi Keith
I went for HiSpec 285 Billet 4 brakes with the standard Fiat 131 Hawk setup. The rear calliper has a built in handbrake.
Ian

Thank Ian, I'll have a look at HiSpec.
Cheers, Keith

[Iowstratos]

Hi Keith
HiSpec should still have all the information for the mounting and disc bells on file.
Ian

[Iowstratos]

Some Pictures

[sean999r]

John Cross Super Retro Rally X Stratos (Litton Corse I) uses same Wilwood forged Superlite 2 calipers and Disc O/D all around with 0.700" masters Ft / Rr,
adjustment on balance bar, + quick adjust lever type bias on rear line.
John states the Stratos type car with its weight distribution requires more rear brake bias, being raced on mix track surface conditions he would certainly know.
This setup also simplifies spare parts with commonality.
As previously mentioned it is probably very close to the 55/45 ratio split