TheSamba.com :: View topic

Sun Oct 26, 2008 10:53 am

I have a set of wide five discs on the front of my 66, new dual circuit master cylinder (size is unknown but what would have come with the kit). Front is great.

Now for the rear, the wheel cylinders are leaking lines are shot, so I would be doing everything. I do not YET have that powerful of a motor by most standards, but the 1776 is probably double what it had stock. This will change in the near future and my goal is a low 12 sec car (to ensure embarrassment to friends of mine that own C6 vettes and BMW 335's :twisted: ). Being that I need to step up the rear brakes, I'm not one to pussy foot or do things half assed, I would like to upgrade my stopping power. I read the article on Cal-look.com http://www.cal-look.com/tech_type_3_brake_conversion.shtml of the type 3 brake conversion, granted the set up is a HUGE improvement over early rears -65, mine being a 66, it would be an improvement for sure in a slightly wider shoe width and swept area, but given the slightly smaller increase, would it be an even better jump to do rear discs? I understand that pedal effort of four wheel discs is higher with out a vacuum assist. I have also been told that drums stop better then discs, just not repeatedly due to the heat and fade. This is not a daily driver, it is a weekend cruiser coffee shop run car. All of your expertise and opinions would be very helpful. :D

Sun Oct 26, 2008 1:01 pm

Go for the rear disc brakes. You won't be dissappointed. To me it's money well spent. Pedal effort is not much different.

Sun Oct 26, 2008 2:43 pm

I would go for the disc conversion. The problem most people see when switching any car to rear discs is that there is too much rear brake bias. To correct for this I have always plumbed in a brake bias adjuster so you can dial in the rear brakes for maximum effort before lockup. Switching your flexlines to braided ones will help with any soft pedal feel and improve the effect and response of the system overall. Be sure to fully flush the brake fluid in the system as its hydroscopic (absorbs water), this makes for a softer pedal and also causes corrison on inner parts and lines. I have often thought that a aftermarket remote booster from the hotrodding world would be a great addition. I don't know of anyone who has done it but would love to know if its been done.

Sun Oct 26, 2008 5:15 pm

beats wrote: I would go for the disc conversion. The problem most people see when switching any car to rear discs is that there is too much rear brake bias. To correct for this I have always plumbed in a brake bias adjuster so you can dial in the rear brakes for maximum effort before lockup.

I run 4 wheel disc brakes......and I also installed a proportioning valve in the rear line. IMO, I didn't need it. Mine is maxed for full pressure. i could remove it and prob. not notice a difference.