HOW TO DO AN ADVANCED SEARCH.
Mon Jul 08, 2013 3:56 pm by Admin
For the benefit of 944Hybrids users there are two search functions available for you to use.
The purpose of this sticky is to explain the "Advanced Search" function because it is much more powerful and is the best choice when researching information.
When you log on to the site a list of options is shown in a line at the top of the page. One option is labelled "Search", use this option (NOT the search box lower down on the right).
After you click on the upper search option, a drop down box appears. At the bottom of this box is a radio button marked "Advanced …
Comments: 0
Latest topics
Log in
Hydraulic brake setups
4 posters
944Hybrids: 924/944/968 and 928 V8 Conversions :: Technical Stuff (other than motors) :: Tracking Your Car
Page 1 of 1
Hydraulic brake setups
For those of you who track you car, what type of hydraulics are you using? Do they provide sufficient stop power? Any fade? Any failed setups that you have tried in the past?
I am trying to get my car finished for next season and currently have a manual brake setup from RH. As far as street driving the setup appears to be sufficient but am worried that it will not hold up at the track. Not so worried about the calipers/ rotors/ pads. More worried about master cylinder / bias issues? Also if the master cylinder will provide enough pressure for high speed stops with being accompanied by an assist.
I am trying to get my car finished for next season and currently have a manual brake setup from RH. As far as street driving the setup appears to be sufficient but am worried that it will not hold up at the track. Not so worried about the calipers/ rotors/ pads. More worried about master cylinder / bias issues? Also if the master cylinder will provide enough pressure for high speed stops with being accompanied by an assist.
whty8911- Posts : 33
Join date : 2013-07-14
Age : 38
Location : Chesterfield, VA
Re: Hydraulic brake setups
Just a little info on the setup. Its a 1987 porsche 944 turbo with rebuild factory calipers. New proportioning valve, new lines, rebuilt calipers, new performance rotors, hawk pads, etc. Master cylinder is from RH and came with the kit.
whty8911- Posts : 33
Join date : 2013-07-14
Age : 38
Location : Chesterfield, VA
Hydraulics
I started with a tandem Willwood as specified in Sloan's book. Brakes were poor/heavy and needed quite a pedal push. I switched to a Mustang hydraboost/prop valve and now they are awesome. I have Boxster S Front rotors with LS 430 Calipers and 951 rear rotors and RX7 Calipers.
Not sure if the racer groups allow this
Not sure if the racer groups allow this
simon123- Posts : 125
Join date : 2013-07-26
Re: Hydraulic brake setups
Check out a few threads in the brake section. I am happy with my DMC setup, but have had to upgrade my brakes and rotors for racing. I was using turbo s calipers on the front and turbo rears (with Hawk DTC 70/60's). Fronts are now 330mm cayenne rotors and wilwood 6r calipers. Rears are the same.
Lemming- Posts : 855
Join date : 2011-05-30
Location : B'ham
Re: Hydraulic brake setups
Lemming, who sells the dmc system you are using? I was thinking about a floor pedal assembly. Any experience with them?
whty8911- Posts : 33
Join date : 2013-07-14
Age : 38
Location : Chesterfield, VA
Re: Hydraulic brake setups
whty8911 wrote:Lemming, who sells the dmc system you are using? I was thinking about a floor pedal assembly. Any experience with them?
Mine was made locally. The pedal systems are great, but the floor mount system will push you see back 3 inches. That put my head under the rollbar and I was not interested in being in that position. Measure carefully.
Lemming- Posts : 855
Join date : 2011-05-30
Location : B'ham
Re: Hydraulic brake setups
Right now my car is an empty shell and even for a big guy (6'1 240lbs) I sit close when I drive. So moving the seat back would not be an issue. I'm thinking a pedal system is my best option so far. Ideal pressure, stress removed from firewall, more room in engine bay, etc. I still have some time before that is a problem to address. Thanks for the input.
whty8911- Posts : 33
Join date : 2013-07-14
Age : 38
Location : Chesterfield, VA
Re: Hydraulic brake setups
Check out "Rich's LS powered 944 track car" thread in the member conversion area. Rich did a nice job of mounting a tilton floor pedal set.
Lemming- Posts : 855
Join date : 2011-05-30
Location : B'ham
Re: Hydraulic brake setups
I made a floor plate from 3/8" aluminum and mounted a Tilton pedal box. Works great for me at 5'7", but I'm only 3 clicks forward on the seat rails from the back. Before the pedals I felt uncomfortably close to the dash and wheel.
https://944hybrids.forumotion.com/t1386p15-rich-s-ls-powered-944-track-car#17709
The mechanical balance bar works well for bias, brakes feel great. But the clutch is very heavy due to needing a 1" compact master to get clutch release.
Good luck with your build.
Rich
https://944hybrids.forumotion.com/t1386p15-rich-s-ls-powered-944-track-car#17709
The mechanical balance bar works well for bias, brakes feel great. But the clutch is very heavy due to needing a 1" compact master to get clutch release.
Good luck with your build.
Rich
Rich L.- Posts : 928
Join date : 2011-05-30
Location : Seattle
Re: Hydraulic brake setups
whty - make sure you check out the pics of Rich's vs. my rollbar. Mine is directly in line with the b-pillar and Rich's is behind. I'm 5'7" and the floor mounted system would not work for me.
Lemming- Posts : 855
Join date : 2011-05-30
Location : B'ham
944Hybrids: 924/944/968 and 928 V8 Conversions :: Technical Stuff (other than motors) :: Tracking Your Car
Page 1 of 1
Permissions in this forum:
You cannot reply to topics in this forum
Today at 7:08 am by gwistrup
» Best engine uprights/plates
Yesterday at 10:12 am by Nath1142
» LEAKING TPC HYDROBOOST
Mon Apr 22, 2024 7:22 pm by lowform
» HYDRAULIC THROWOUT/RELEASE BEARING NOT ENGAGING FULLY
Mon Apr 22, 2024 7:12 pm by lowform
» Fesler Saratoga Top
Mon Apr 15, 2024 7:28 pm by JW1970
» Ray's 1987 944 LS1 Build & Swap
Mon Apr 15, 2024 6:59 pm by JW1970
» LS 982 5speed project here
Mon Apr 15, 2024 9:51 am by Raymond-P
» LT1 Spark Plug make and model
Fri Apr 12, 2024 3:07 pm by Rob44
» 928 5-speed kit
Wed Apr 10, 2024 10:09 pm by LS982
» Slave Cylinder Spacing from Clutch Fingers
Tue Apr 09, 2024 1:54 am by lowform