User Login    
 + Register
  • Main navigation
Main Menu
Login
Username:

Password:


Lost Password?

Register now!
Fast Search
Slow Search

Advanced Search
Google Ad

Browsing this Thread:   1 Anonymous Users



« 1 (2)


Elrich11
Re: Brake Bias
#11
Home away from home
Joined:
2013/3/31 0:08
From Geelong, Victoria
Group:
Registered Users
Posts: 263
Offline
Quote:

Murvz wrote:
I am running R31 rears and 280mm s13's on the front along with a 7/8th master with booster and wilwood proportinoning valve on my 1200 ute also.
Should have it back on the road next week for testing. I'll keep you posted how it fairs for comparison

Awesome Murvz, I would be keen to hear how you go with it.

Posted on: 2017/3/3 0:56
Transfer the post to other applications Transfer


Elrich11
Re: Brake Bias
#12
Home away from home
Joined:
2013/3/31 0:08
From Geelong, Victoria
Group:
Registered Users
Posts: 263
Offline
Fitted the SR20DET single piston calipers and 280mm rotors. I now have the bias under control and have much better feel and braking power. I was surprised at the improvement this change made!

Posted on: 2017/3/12 7:22
Transfer the post to other applications Transfer


ddgonzal
Re: Brake Bias
#13
Moderator
Joined:
2001/5/3 7:04
From 48 North
Group:
Registered Users
Contentmaster
Usermaster
Posts: 31575
Offline
Good to know. So it seems that the R31 rear brakes are too big to go with the S13 250mm front brakes

Posted on: 2017/3/12 7:32
Transfer the post to other applications Transfer


Elrich11
Re: Brake Bias
#14
Home away from home
Joined:
2013/3/31 0:08
From Geelong, Victoria
Group:
Registered Users
Posts: 263
Offline
Quote:

ddgonzal wrote:
Good to know. So it seems that the R31 rear brakes are too big to go with the S13 250mm front brakes

Yeah, at least in a ute anyway. It might work in a different body type with more weight at the back?

Posted on: 2017/3/12 7:34
Transfer the post to other applications Transfer


Murvz
Re: Brake Bias
#15
Just can't stay away
Joined:
2011/2/8 2:52
From Newcastle, Australia
Group:
Registered Users
Posts: 101
Offline
Hey Elrich. Finally got to road test my setup. Bias seems ok even with no proportion adjustment. I have found that my peddle is really spongey now compared to the old setup. How does yours feel? I am running a brake booster also.

Posted on: 2017/3/27 2:34
Transfer the post to other applications Transfer


Elrich11
Re: Brake Bias
#16
Home away from home
Joined:
2013/3/31 0:08
From Geelong, Victoria
Group:
Registered Users
Posts: 263
Offline
Quote:

Murvz wrote:
Hey Elrich. Finally got to road test my setup. Bias seems ok even with no proportion adjustment. I have found that my peddle is really spongey now compared to the old setup. How does yours feel? I am running a brake booster also.

Hi Murvz, my pedal feels fine. I'm running the Maddat booster and 7/8" master.

Posted on: 2017/3/27 3:29
Transfer the post to other applications Transfer


ddgonzal
Re: Brake Bias
#17
Moderator
Joined:
2001/5/3 7:04
From 48 North
Group:
Registered Users
Contentmaster
Usermaster
Posts: 31575
Offline
Compared to a non-booster setup, the booster type will allows feel spongier. Even so, when the brake system is bled properly a booster type will feel fine

One simple test you can do is: With engine off, pump the brakes until the booster loses vacuum. The pedal should get higher and tighter with each pump. All sponginess should go away after four pumps or so -- which indicates the brake hydraulics are OK. If it doesn't remove all sponginess, re-bleed the brakes

Posted on: 2017/3/27 5:37
Transfer the post to other applications Transfer


Murvz
Re: Brake Bias
#18
Just can't stay away
Joined:
2011/2/8 2:52
From Newcastle, Australia
Group:
Registered Users
Posts: 101
Offline
The pedal is quite firm without the engine running so I'm not too worried.. I may still try another bleed just to be sure. The car is pulling up fine. I think the difference is just due to the SR calipers being quite a bit larger than the bluebird calipers I previously had fitted.

Posted on: 2017/3/27 11:20
Transfer the post to other applications Transfer


ddgonzal
Re: Brake Bias
#19
Moderator
Joined:
2001/5/3 7:04
From 48 North
Group:
Registered Users
Contentmaster
Usermaster
Posts: 31575
Offline
With the larger calipers it will require more pedal travel. You can shorten the pedal travel by fitting a larger diameter master (the downside is more foot pressure is required, but with a booster that's not usually a problem). Also if you have rear drum brakes, adjust them to spec as this reduces pedal travel

"Sponginess" technically refers to a mushy pedal due to air in the lines. A lot of people call increased travel "spongy" but it's actually a different thing and a different feel

Posted on: 2017/3/28 6:01
Transfer the post to other applications Transfer


Murvz
Re: Brake Bias
#20
Just can't stay away
Joined:
2011/2/8 2:52
From Newcastle, Australia
Group:
Registered Users
Posts: 101
Offline
One of my double flares was questionable. Created a small leak and was letting air in the system. Bled it off and the pedal feels much better now. Past rego this morning so shes back on the road!!

Posted on: 2017/3/28 7:48
Transfer the post to other applications Transfer



« 1 (2)



You can view topic.
You cannot start a new topic.
You cannot reply to posts.
You cannot edit your posts.
You cannot delete your posts.
You cannot add new polls.
You cannot vote in polls.
You cannot attach files to posts.
You cannot post without approval.

[Advanced Search]