GroupN Brake Servo Spacer

fourdegrees · 06-03-2008, 01:22 PM

Has anyone used or even heard of how effectively this works? I know in the past one of the biggest criticisms about the stock Impreza brake system is its dual stage booster. Mike Shields used to sell a single stage booster.

Myles, I know you're into brake exotica, do you know anything about this?

Here's the link to the page with the description:

RalliSpec - Brake System

kursplat · 06-03-2008, 02:47 PM

i'd be all over this if it weren't for the price...and kicking me out of class

fourdegrees · 06-03-2008, 04:02 PM

If it really improves brake feel, one of the major problems with these cars, the price doesn't seem to steep to me.

***Draco-REX*** · 06-03-2008, 04:56 PM

Quote:

Originally Posted by fourdegrees

If it really improves brake feel, one of the major problems with these cars, the price doesn't seem to steep to me.

However you will lose a lot of braking force by removing the booster. I could see it being ok if you were to run racing pads in a racing environment, but on the street you'll have to stand on the brakes to get the same force. Even so, most racers keep the booster.

fourdegrees · 06-03-2008, 05:01 PM

I remember reading a review a few years ago in EVO about a company tuning out some of the assist to help with pedal weight and feel. I believe it was one of the french car makers, but I'm not certain. I remember being struck by the subtle brilliance of that kind of change. I also remember lamenting the fact that US car makers probably wouldn't give something like that a second thought.

kursplat · 06-09-2008, 09:51 PM

Quote:

Originally Posted by Draco-REX

However you will lose a lot of braking force by removing the booster. I could see it being ok if you were to run racing pads in a racing environment, but on the street you'll have to stand on the brakes to get the same force.

you'll lose some. depends on what the pedal ratio is to start with vs when your done. but i wouldn't worry too much about it. i've removed 6 or 7 boosters from various cars (though non a subaru) and loved it every time, and every one was street driven

good luck

mug23 · 06-09-2008, 10:55 PM

Hummm, I maybe interested in something like that since my STI is a full race car now. I'm just worry about loosing too much brake boost and get tired fast.

If anyone can see how much pressure loose, that would be great.

fourdegrees · 06-10-2008, 02:49 PM

I'm assuming they're running these on rally cars, since Rallispec caters to the pros, so it probably can't be that bad.

06-03-2008, 01:22 PM	#1
fourdegrees Junior STI Driver Posts: 159 Join Date: Jul 2004 Trader Rating: (0)	GroupN Brake Servo Spacer Has anyone used or even heard of how effectively this works? I know in the past one of the biggest criticisms about the stock Impreza brake system is its dual stage booster. Mike Shields used to sell a single stage booster. Myles, I know you're into brake exotica, do you know anything about this? Here's the link to the page with the description: RalliSpec - Brake System This ad is not endorsed by this member. Please register or login to hide this ad.

06-03-2008, 02:47 PM	#2
kursplat Junior STI Driver Car: 05 crystal grey sti Posts: 160 Join Date: Oct 2005 Trader Rating: (0)	Re: GroupN Brake Servo Spacer i'd be all over this if it weren't for the price...and kicking me out of class

06-03-2008, 04:02 PM	#3
fourdegrees Junior STI Driver Posts: 159 Join Date: Jul 2004 Trader Rating: (0)	Re: GroupN Brake Servo Spacer If it really improves brake feel, one of the major problems with these cars, the price doesn't seem to steep to me.

06-03-2008, 05:01 PM	#5
fourdegrees Junior STI Driver Posts: 159 Join Date: Jul 2004 Trader Rating: (0)	Re: GroupN Brake Servo Spacer I remember reading a review a few years ago in EVO about a company tuning out some of the assist to help with pedal weight and feel. I believe it was one of the french car makers, but I'm not certain. I remember being struck by the subtle brilliance of that kind of change. I also remember lamenting the fact that US car makers probably wouldn't give something like that a second thought.

06-09-2008, 10:55 PM	#7
mug23 Professional STI Racer Car: 05 WRX STi Location: Former Bostonian now in U Posts: 611 Join Date: Apr 2005 Trader Rating: (1)	Re: GroupN Brake Servo Spacer Hummm, I maybe interested in something like that since my STI is a full race car now. I'm just worry about loosing too much brake boost and get tired fast. If anyone can see how much pressure loose, that would be great.

06-10-2008, 02:49 PM	#8
fourdegrees Junior STI Driver Posts: 159 Join Date: Jul 2004 Trader Rating: (0)	Re: GroupN Brake Servo Spacer I'm assuming they're running these on rally cars, since Rallispec caters to the pros, so it probably can't be that bad. This ad is not endorsed by this member. Please register or login to hide this ad.