Should I hold off ? - Lateral-g Forums

**DOOM** · #1 08-04-2010, 06:29 AM

I was getting ready to order my mounting hardware from KORE3. With all this talk of ''knock back'' I was wondering if I should hold off ordering this kit. I know we have some guy's on here working on this problem.

ProdigyCustoms · #2 08-04-2010, 07:35 AM

Not sure what the question is. Are you planning to run ZO6 brakes and worried about knock back?

Let me say this first, we are putting WAY to much brake on the back of these cars. We DO NOT need 14" rear rotors with calipers bigger then a size 10 shoe. I say this because I think the major brake companies are working on a floating caliper. But I do not think any of them have anything in a big impressive looking caliper yet. Well, let's say I know they do not. We are testing a floating caliper right now but are sworn to secrecy. Since you only need 30% for the rear brakes, it is working just fine and is sufficient, it just does not look real impressive like the big ole calipers we like to see. This may be a function over form thing.

We are also looking heavily into full floaters and may be very close to something that will allow a big impressive caliper and will have zero knock back issues because of the floating design. But that is still in development and right now cost are higher then i want them to be.

So, how was that for a whole bunch of nothing!

wiedemab · #3 08-04-2010, 07:45 AM

You'll have to forgive my poor memory on the specific number - - -

I talked to Kyle Tucker at Columbus about this issue and he said that they've had some issues on the rear and that they at times go through several axle bearings until they find ones that have acceptable "end play" - not sure if that is the correct term. They press them on and check them and if they don't meet spec, they scrap them and try another one.

I want to say he said they shoot for .007" total, but that my not be correct. - -Edit - - - OK not sure on my number even more now that I read this thread on PT.

http://www.pro-touring.com/forum/showthread.php?t=60256

It looks like people were having problems with .005" end play.

Vegas69 · #4 08-04-2010, 07:54 AM

Master cylinder bore size plays a HUGE factor. I'm pretty sure DSE runs power brakes and that's a huge deal. Personally, I've never felt like my car has had enough rear brake. I've got a set of more agressive pads on the shelf I need to install before my next track day. Mario, your car is not even close to needing brakes. Wait......

**DOOM** · #5 08-04-2010, 09:10 AM

Quote:

Originally Posted by Vegas69

Master cylinder bore size plays a HUGE factor. I'm pretty sure DSE runs power brakes and that's a huge deal. Personally, I've never felt like my car has had enough rear brake. I've got a set of more agressive pads on the shelf I need to install before my next track day. Mario, your car is not even close to needing brakes. Wait......

I hear ya Todd.This is what I was thinking. Just reading all this stuff about loosing brake pedal makes me a little nervous....

MarkM66 · #6 08-04-2010, 09:55 AM

What about putting front c5/c6 caliper on the rear? They're floating and fairly large. Is the bore size to large?

ProdigyCustoms · #7 08-04-2010, 09:59 AM

If anyone would be working on a floating solution for that caliper it would be Toben. I do not know if he is.

As Todd mentioned, Power brakes seems to cure a lot of it because the larger bore master moves more volume of fluid and more rapidly resets the caliper piston. Most of the trouble comes with low volume, high pressure manual set ups.

A dual master set up seems to help the problem also. So we are working on a dual master cylinder solution too. One of the parts we are developing from the Unfair Project.

If you are committed to those brakes I would call Toben.

**DOOM** · #8 08-04-2010, 09:07 AM

Quote:

Originally Posted by ProdigyCustoms

Not sure what the question is. Are you planning to run ZO6 brakes and worried about knock back?

Let me say this first, we are putting WAY to much brake on the back of these cars. We DO NOT need 14" rear rotors with calipers bigger then a size 10 shoe. I say this because I think the major brake companies are working on a floating caliper. But I do not think any of them have anything in a big impressive looking caliper yet. Well, let's say I know they do not. We are testing a floating caliper right now but are sworn to secrecy. Since you only need 30% for the rear brakes, it is working just fine and is sufficient, it just does not look real impressive like the big ole calipers we like to see. This may be a function over form thing.

We are also looking heavily into full floaters and may be very close to something that will allow a big impressive caliper and will have zero knock back issues because of the floating design. But that is still in development and right now cost are higher then i want them to be.

So, how was that for a whole bunch of nothing!

Well Frank I'm in deep on this one I purchase a complete ZR1 setup from Mark Stielow awile back. So I think this falls into your way to much brake quote. I did'nt know if someone was coming up with something to get this setup to work better? Is this deal your working on something that will alow us to use our current calipers??