NS Dev
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| posted on 17/1/07 at 02:48 PM |
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Front to rear brake bias on MOT roller tester??
Daft question, but taking the car to the garage on fri afternoon to check the brakes on the rollers pre-sva.
What % do I need as a front to rear comparison?
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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Hellfire
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| posted on 17/1/07 at 02:52 PM |
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quote:
Originally posted by NS Dev
Daft question, but taking the car to the garage on fri afternoon to check the brakes on the rollers pre-sva.
What % do I need as a front to rear comparison?
As long as the front wheels lock up before the back wheels that is all the SVA look for.
Steve
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NS Dev
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| posted on 17/1/07 at 03:04 PM |
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thought there was a load of calcs in the manual on C of G etc and the brake effort had to satisfy that lot?
If its just front before rear then no probs, I know it does that............... 
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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Bob C
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| posted on 17/1/07 at 03:48 PM |
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yep - load of calcs - designed to ensure front before rear on all surfaces (ice to dry tarmac). If your fronts lock first on dry tarmac & you have
a bias bar (or nothing at all) you'll get through
Bob
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MikeR
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| posted on 17/1/07 at 04:21 PM |
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so my harness gets it first official outting - be careful with it, don't do anything silly, i don't want any stretching or blood on it
ok!
(remember, i've been your passenger!)
do a search, i'm sure this has been covered before.
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RazMan
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| posted on 17/1/07 at 05:17 PM |
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My SVA tester told me that my car was overbraked on the rear calipers (std Sierra) and needed to tweak the balance bar - I still passed though.
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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Kissy
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| posted on 17/1/07 at 06:32 PM |
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I set my bias almost fully front. On the rollers it passed no worries (helps that the MOT guy races monoposto, so is sympathetic to non-standadr
stuff) The rollers were knackered on the second year so they did the road test using the accellerometer - for that they needed the vehicle weight
(which I knew) so they calculated it as OK too. I'd let them know when you turn up - hopefully you won't have a station where they keep
you away from the tester. Best bit was the emissions - mine were taken from a Laguna! Happened to be the nearest car to the emissions checker.
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zxrlocost
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| posted on 17/1/07 at 11:52 PM |
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dude when they checked my car he was very serious about all the measurements and readings
go with bog standard pads and make sure your fronts lock up first on your private test road your 90% there
chris
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NS Dev
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| posted on 18/1/07 at 08:40 AM |
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Ok, cool.
Thanks all.
My roll pin on the bias bar may prove "compliant" enough to allow the neccesary adjustment!
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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chockymonster
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| posted on 18/1/07 at 09:34 AM |
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quote:
Originally posted by NS Dev
Ok, cool.
Thanks all.
My roll pin on the bias bar may prove "compliant" enough to allow the neccesary adjustment!
Have fun with that!
My tester spent a good 10 minutes making sure the roll pin was all the way through!
PLEASE NOTE - Responses on Forum Threads may contain Sarcasm and may not be suitable for the hard of Thinking.
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NS Dev
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| posted on 18/1/07 at 09:43 AM |
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How?
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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RazMan
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| posted on 18/1/07 at 09:47 AM |
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I didn't even have my bias bar locked for my test! The tester was happy with it though.
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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NS Dev
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| posted on 18/1/07 at 09:53 AM |
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I have the aforementioned "roll-pin", and I also have an alloy cover/footrest, which I want to fit over the pedal box, but I'm not
sure whether if I fit it he will fail it through suspicion!!!!
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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