Upgrading Brake Booster...Do you need the cylinder as well? - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

Sub Boy · 30th July 2008, 08:24 AM

Have got a Stagea RS260 Brake Booster coming to help out the F40 brakes now on my R32 GTR, Do I need to replace the Cylinder as well? I have no idea how this works...LOL!

t51rjohn · 30th July 2008, 11:15 AM

be interesting to find out what affect it has on your car, sorry i have no info regarding this.

Moff · 30th July 2008, 01:07 PM

Is it a brake stopper, they can sometimes be the same thing ?

Moff

tarmac terror · 30th July 2008, 02:57 PM

It will be the larger diameter master cylinder that will give you the extra 'power' you need for your brakes. I'd be surprised if the booster (or servo as we call it) will make any difference TBH. Its all in the master cylinder.....

TT

Light-R · 30th July 2008, 08:10 PM

regarding this issue, i fitted some time ago an alcon 6pot 355mm kit. it works mildly good, as it could be better with more agressive pads.

the thing is, how can i improve the pedal travel/feel?

is it attained by installing a new master cylinder?

GT-R Glenn · 30th July 2008, 09:27 PM

Chris, exactly what calipers are they ?
Are they the R33 Brembo ?

GT-R Glenn · 31st July 2008, 12:04 AM

A brake booster is basically a diaphragm which is suspended in a case.
The vacuum from the engine helps to move the diaphragm forward when you press on the brake pedal ,which pushes the piston on the brake master cylinder, basically lowering the "effort" required to push the brake pedal.
It wont have any effect on master cylinder / slave cylinder ratio.

Sub Boy · 31st July 2008, 06:14 AM

Quote:

Originally Posted by GT-R Glenn

Chris, exactly what calipers are they ?
Are they the R33 Brembo ?

No, they are the same as F40 calipers, same pads and pistons (I think they are off an Evo8), They are about 70mm longer than my old R33 Brembos....

Hopefully I have the whole master cylinder coming, This should sort it.

GT-R Glenn · 31st July 2008, 06:42 AM

Ok
I will assume the rs260 is the same as the R33 GTR setup, which would be fine with those calipers I would think.
Did you have R33 brembo's with R32 Master cylinder ?

Sub Boy · 31st July 2008, 09:03 AM

the rs260 is the same as the R33 in size....With a little more rear bias.\
Yes, I had 33 brembos with the std booster.

GT-R Glenn · 31st July 2008, 10:46 AM

No worries
I still run R32 with the R33 brembo's, with a bias adjuster.

30th July 2008, 08:24 AM	#1 (permalink)
Sub Boy GTR Register Member Join Date: Jan 2008 Location: ChCh NZ Posts: 221	Upgrading Brake Booster...Do you need the cylinder as well? Have got a Stagea RS260 Brake Booster coming to help out the F40 brakes now on my R32 GTR, Do I need to replace the Cylinder as well? I have no idea how this works...LOL!

31st July 2008, 12:04 AM	#7 (permalink)
GT-R Glenn GTR Register Member Join Date: Nov 2002 Location: Waiuku NZ Posts: 1,227	A brake booster is basically a diaphragm which is suspended in a case. The vacuum from the engine helps to move the diaphragm forward when you press on the brake pedal ,which pushes the piston on the brake master cylinder, basically lowering the "effort" required to push the brake pedal. It wont have any effect on master cylinder / slave cylinder ratio. Last edited by GT-R Glenn; 31st July 2008 at 12:08 AM.

Thread Tools
Show Printable Version Email this Page
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread:

30th July 2008, 11:15 AM	#2 (permalink)
t51rjohn GTR Register Member Join Date: Oct 2005 Posts: 95	be interesting to find out what affect it has on your car, sorry i have no info regarding this.

30th July 2008, 01:07 PM	#3 (permalink)
Moff GTR Register Member Join Date: Sep 2004 Location: Reading Posts: 348	Is it a brake stopper, they can sometimes be the same thing ? Moff

30th July 2008, 02:57 PM	#4 (permalink)
tarmac terror New Users Join Date: Jul 2003 Location: Hampshire, but Scottish through and through! Posts: 2,624	It will be the larger diameter master cylinder that will give you the extra 'power' you need for your brakes. I'd be surprised if the booster (or servo as we call it) will make any difference TBH. Its all in the master cylinder..... TT

30th July 2008, 08:10 PM	#5 (permalink)
Light-R GTR Register Member Join Date: Apr 2007 Location: lisbon Posts: 652	regarding this issue, i fitted some time ago an alcon 6pot 355mm kit. it works mildly good, as it could be better with more agressive pads. the thing is, how can i improve the pedal travel/feel? is it attained by installing a new master cylinder?

30th July 2008, 09:27 PM	#6 (permalink)
GT-R Glenn GTR Register Member Join Date: Nov 2002 Location: Waiuku NZ Posts: 1,227	Chris, exactly what calipers are they ? Are they the R33 Brembo ?

31st July 2008, 06:42 AM	#9 (permalink)
GT-R Glenn GTR Register Member Join Date: Nov 2002 Location: Waiuku NZ Posts: 1,227	Ok I will assume the rs260 is the same as the R33 GTR setup, which would be fine with those calipers I would think. Did you have R33 brembo's with R32 Master cylinder ?

31st July 2008, 09:03 AM	#10 (permalink)
Sub Boy GTR Register Member Join Date: Jan 2008 Location: ChCh NZ Posts: 221	the rs260 is the same as the R33 in size....With a little more rear bias.\ Yes, I had 33 brembos with the std booster.

31st July 2008, 10:46 AM	#11 (permalink)
GT-R Glenn GTR Register Member Join Date: Nov 2002 Location: Waiuku NZ Posts: 1,227	No worries I still run R32 with the R33 brembo's, with a bias adjuster.