Manual, Booster or Hydroboost?

[rogue]

My car is a non power steering car with 13" Brakes up front and 12" Brakes in the rear. Usual Suspect conversion kits from Ricks...

I'm not getting enough power from the booster to the brakes and cannot get the car to lock up the tires unless I pump up a lot of pressure before a hard brake....

Recently saw that crash at the autocross of the car that crashed due to the engine stalling and hydroboost failing and it got me thinking. I'm going to get some vacuum readings off my stock zz502 this weekend and see if I'm getting enough vacuum to run a booster.

If I have enough Vacuum should I just run a dual diaphram 8" Booster or should I bite the bullet and do a hydraboost setup and add power steering as well...

$1800 or so vs $350 or so... Pretty big price difference.

I've heard from a few people the zz502 doesn't put out much vacuum. Will see on saturday.

My car doesn't have power steering so I'd have to add power steering pump, all bracketry, just for the hydroboost. And at that point, I might as well add Power Steering and a 12:1 ratio box. It adds up pretty quick. $2000 just to lock up my brakes, lose some power, and add more things that can fail at the track.

Or just find a booster that works for $300 and call it a day.

Would I be able to run a manual master with my OEM style calipers?

Fronts:
https://static1.pt-content.com/images/pt/2009/06/PIC0179-1.jpg
Rears:
https://static1.pt-content.com/images/pt/2009/06/IMG_1242JPG-1.jpg
I just want a nice predictable solid pedal, I don't care if it requires some strength because I'm a big guy, but I need full lock up and I need to rely on my brakes on track days.

For now I baby the car because the brakes are the weak link...

[MonzaRacer]

Some hydro boost have accumulators in them so you do get one or 2 applications before you loose boost completely. I seem to remember one or two that were electric boosted, hhhmmm might see about building something,,, uuuhhh ohhhh now ya done it. I wont be able to sleep till I get this figured out.

[rogue]

Some hydro boost have accumulators in them so you do get one or 2 applications before you loose boost completely. I seem to remember one or two that were electric boosted, hhhmmm might see about building something,,, uuuhhh ohhhh now ya done it. I wont be able to sleep till I get this figured out.

I was also looking at this solution...

http://www.abspowerbrake.com/electrichppage.html

I'd rather run that setup than hydroboost due to the lack of extra weight and horsepower loss from the pump.

I'd rather go for the cheapest solution though.

[DeltaT]

Manual works fine, if you change to the upper pedal pivot point, and change out your combo valve for one specced for manual. I did this conversion with 13" Wilwood brakes in front and 12.5" Wilwoods in back and it turned out fine, nice solid pedal and very progressive. I did need to change the Master Cylinder to a slightly smaller diameter before I w2as completely satisifed though, and bleed the brakes twice.

I always hated the normal american on-off power brake feel and this is a huge improvement, more like good Porsche brakes.

Master Power brakes had all the right parts for this and it is not expensive.

Jim