[justdandee]

What I have now is this 2" drop spindle. The disc brakes(10.5") that work with spindle are insufficient. So I am looking at options and the more I look the more options I think I see. Putting down two ideas to kind of frame the direction I am leading and budget.

CHEVROLET CHEVELLE Wilwood Disc Brakes 140-7675-D Wilwood Forged Dynalite Big Brake Front Brake Kits | Summit Racing this along with a right stuff 2" drop spindle and I will of course need a new steering arms. So this would be top of the budget 1200-1300 range. Fight for the extra diameter (12.19")on the rotor but stay with the 15" ralleys that I have.

Or I can go to this- with the steering arms is $825ish. Stay with the 11inch rotor.
CHEVROLET CHEVELLE Right Stuff Detailing AFXWK01DS Right Stuff Detailing Front Disc Brake Conversion Show'N Go Kits | Summit Racing

Looking to see if I missed anything good that would fit in between these options? Or just feed back on what or what did not work for you?

Street and occasional autocross is the direction- The car has a new M/C booster with 1 - 1/8 master cylinder. because of the cam I have beem thinking of dropping that down to a manual set-up or vacuum pump. Either way not looking to source the kit with a master cylinder necessarily- will probably sort that out after I see how the system works with the new wheel hardware.

 

[GTO44]

Have you considered a hydroboost setup?

 

[justdandee]

I have...briefly. Not fully discounting that but I have a tendency to lean towards lighter if I can get it. Then a cleaner/simpler engine compartment and of course a lower cost...

 

[c4racer]

with a 4.8PA and 12" rotor, that is not quite optimal for a manual set-up, but I think it might work OK.
I would have to run all the math - I would use as much pedal leverage as you can get and likely a 7/8" MC will get you there. You need to match the rears with a very similar set-up - manual brakes are quite fussy about that for balance. You need to put together some kind of balance bar set-up, not sure if anybody has something pre-built and ready for these cars or if you need to design something. Pad compound also makes a big difference. Get somebody who knows how to properly design a manual brake system to give you a full recommendation based on the actual math involved unless you can do that yourself. Tobin at Kore would be a good place to start - IMHO.

I have manual brakes on my Camaro and they are simply amazing - best brake system I've ever had on any car including Corvettes, Porsche, etc. But I am running 14" rotors and a big caliper with almost 6sq-in PA and 18" wheels to clear it. The rears are also 14" but about 1" smaller PA which gets the balance pretty spot on with a balance bar set close to centered and pedal ratio of 6.8 which is a bit more than stock. Lots of details to figure out with manual brakes - good payoff if you do it right tho. Same here - I have a cam that just wouldn't run power brakes well at all. I would try a booster before hydroboost if you end up staying w/ power.