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        General >> Give/Need advice to/from others >> Brake power
        
(Message started by: tlundkvi on Jun 12^th, 2009, 5:41pm)

Title: Brake power
Post by tlundkvi on Jun 12^th, 2009, 5:41pm

Does anyone know what the brake power should be per wheel on front and rear axles? Recall from my MOT it was something around 2,5kN front/wheel and 2,0 kN rear. It would be interesting to see how my car brakes rate in comparison to the specification (with new brakes). Tried to look for it in different specs but couldn't find it.

Title: Re: Brake power
Post by Snoopy on Jun 12^th, 2009, 5:45pm

Never seen any information of that sort in ALL the years I have been dealing with the Scorpio . Others might though!

Title: Re: Brake power
Post by tlundkvi on Jun 12^th, 2009, 6:07pm

You would think this would be properly specified, apparently not. Our mot prints the data on the certificate, to "prove" if braking force is not balanced. Haven't done it with new OEM's ever to know what the values should be.

Title: Re: Brake power
Post by adam on Jun 12^th, 2009, 8:20pm

Detailed Brake Test (Ford Scorpio)

(2 AXLE) Class IV Brakeline: Dual

AXLE 1 - 890kg

BIND GRAB/JUB INC/DEC IMBALANCE MAX. FORCE
Service
N/S PASS PASS PASS 211 kgf 302 kgf (L)
O/S PASS PASS PASS 235 kgf 326 kgf (L)

AXLE 2 - 778kg

Service
N/S PASS PASS PASS 84kgf 173kgf(L)
O/S PASS PASS PASS 72kgf 256kgf(L)

PARKING N/S 224kgf
PARKING O/S 169kgf

Test Summary:

Measured Vehicle Weight = 1668 kg

B/SYS PASS VALUE TEST VALUE RESULT

Service 50% 63% PASS
Parking 16% 24% PASS

OVERALL RESULT: PASSED 8)

Title: Re: Brake power
Post by Tekno on Jun 12^th, 2009, 8:25pm

I changed all discs and pads. Then straight way to the MOT:

Left Right
Front 2,7kN 2,7kN
Rear 2,3kN 2,0kN
Handbrake 2,0kN 1,7kN

Parts used: TRW discs (black), front pads: Jufi, rear pads: Remsa

I have 2.3 (smaller brakes than 2.9 24V)

Title: Re: Brake power
Post by adam on Jun 12^th, 2009, 8:36pm

The brakes fitted on this Scorp are OEM and could do with a complete overhaul . I thought they were really poor compared to my other Scorp's braking efficiency. Surprisingly, it passed. ??? ;D
Will post the difference when other Scorp fitted with new Mintex Disc and Pads goes for yearly health check up ;D

Title: Re: Brake power
Post by tlundkvi on Jun 15^th, 2009, 6:50am

on 06/12/09 at 20:36:34, adam wrote:

The MOT will be interested in mostly the balancing in the breaking. Over here a maximum of 30% difference. I guess there is a lower limit on the force, but balancing seems to be the crucial factor.

Will post my data when I have it measured (is at best in any case after 1000km driving when pads have properly bedded in). My pre-service data was quite in line with Tekno's, I don't expect any revolutionary improvement. My front discs had a small wear, nothing bad (replaced). The rears are still much better than the fronts were, so I keep them for the next set of pads. So all will be new except for the rear discs.

Title: Re: Brake power
Post by martin_rowe on Jun 15^th, 2009, 8:52am

cant get better than a locking brake, limiting factor is then friction of tyres on rollers.