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Sprint brake servo ratio
Posted: Sun Aug 02, 2015 9:13 am
by iandollysprint
Hi, i am going to fit a remote servo to my sprint as i need to create more space for a decent airbox with my redtop c20xe conversion.
Looking around there seems to be 3 options on servo remote ratios
1.65:1
1.9:1
3.0:1
What was the original servo ratio for a sprint?
My brakes are uprated front sierra discs/calipers plus disc conversion to rear using cosworth calipers and fiesta mk3 front discs. They are absolutely amazing and hence i want to keep the same ratio for the remote set up.
Thanks
Ian
Re: Sprint brake servo ratio
Posted: Sun Aug 02, 2015 9:26 am
by Mad Mart
I believe it was 3:1.
Re: Sprint brake servo ratio
Posted: Sun Aug 02, 2015 9:32 am
by iandollysprint
Ok, thanks for the quick response. It does feel well assisted compared to non servo!
Ian
Re: Sprint brake servo ratio
Posted: Sun Aug 02, 2015 1:14 pm
by Carledo
I have all the bits here for a non servo'd Toledo, bulkhead adaptor plate, master cylinder (single circuit) and the long stiffener plate to connect to strut housing. Dont have a remote servo but MGB Hive do one for (guess what) an MGB for sensible money. I think the advantage is only 1.75 though. Good enough for a lightish car in my experience. If you can find one, a Hillman Hunter servo is good (2.25/1 IIRC) I have also used one from a Fiat 127 in the past but I expect they are like hens teeth now. Don't be tempted by a used Girling one, they are better than Lockheed in almost every way but repair kits are ridiculously expensive and/or complete unobtanium depending on model.
Steve
Re: Sprint brake servo ratio
Posted: Sun Aug 02, 2015 6:08 pm
by iandollysprint
Steve, you have pm
Thanks
Ian
How about......
Posted: Sun Aug 02, 2015 7:37 pm
by sprint95m
http://www.carbuildersolutions.com/uk/r ... rake-servo
It may be worth enquiring as to the spec?
CBS give a 10% discount to TDC members.
There is no carriage charge for orders over £100 either.
Ian.
Re: Sprint brake servo ratio
Posted: Sun Aug 02, 2015 10:36 pm
by Jon Tilson
My Rover P6 also has a pretty decent remote servo and its driven off a 7/8 girling master that would fit
the dolly bulkhead.
Jonners
Re: Sprint brake servo ratio
Posted: Mon Aug 03, 2015 8:40 pm
by iandollysprint
Thanks for all the comments. I will probably either fit the sprint master cylinder to the bulkhead using a chopped up servo as the mounting bracket or fit the toledo master with correct mounting plate. Remote servo will be fitted in the boot and wiil be a 3:1 ratio one, new off fleebay. I have no room in the engine bay!