rear brake upgrade to maintain balance
Discussion
I searched and read through I don't know how many PH articles on brake upgrades but cannot seem to find a decent answer/perspective on appropriate rear brake upgrade when upgrading the front.
I am considering front brake replacement from standard for a 1992 Griff 430 on 15" rims using the kit that Hans is offering. These come with 283x24 mm discs.
I would like to do the rears at the same time if possible but am wondering on what folks here think on sizing/weight for front/rear balance. I have seen some posts about leaving them the way they are to going up to 300mm on the rear under the standard 16" rims.
Any thoughts/experiences much appreciated.
n.b. rear discs need to be replaced anyway either I keep them the size they are or I replace/resize them so if I am going to do it now would be the right time!
I am considering front brake replacement from standard for a 1992 Griff 430 on 15" rims using the kit that Hans is offering. These come with 283x24 mm discs.
I would like to do the rears at the same time if possible but am wondering on what folks here think on sizing/weight for front/rear balance. I have seen some posts about leaving them the way they are to going up to 300mm on the rear under the standard 16" rims.
Any thoughts/experiences much appreciated.
n.b. rear discs need to be replaced anyway either I keep them the size they are or I replace/resize them so if I am going to do it now would be the right time!
Good luck, been there, done the maths (i was HRG at the time)
http://www.pistonheads.com/gassing/topic.asp?h=0&a...
I fitted a Compbrake Cosworth kit on the rear. Basically mounts the original caliper further out on larger discs. Balance is just fine
http://www.pistonheads.com/gassing/topic.asp?h=0&a...
I fitted a Compbrake Cosworth kit on the rear. Basically mounts the original caliper further out on larger discs. Balance is just fine
Hi Paul, I am also going down the route as you know with the 'Hans' front brake kit. I am initially going to leave the rear as it is, the discs are faily new and under heavy breaking I have had the back lock up so plenty of braking force applied there. I have found though that there is a need for better front braking, hence the upgrade. I would say trial it with just the front and work on the back if required. Just putting new replacement discs and pads on the back could improve things for you without going over to larger discs and different calipers! Regards, Pete
I too did maths to work out what to do with the rear brakes. I came to the conclusion that I should change the bias valve to allow more effort from the rear. I did not need to change the calipers unless I fitted competition pads to the front. And this would not decrease dry stopping distance sufficiently to be useful. I will dig out the calculation if there is interest.
dnb said:
I too did maths to work out what to do with the rear brakes. I came to the conclusion that I should change the bias valve to allow more effort from the rear. I did not need to change the calipers unless I fitted competition pads to the front. And this would not decrease dry stopping distance sufficiently to be useful. I will dig out the calculation if there is interest.
I came to the same conclusion and fitted a brake bias valve.Gassing Station | Griffith | Top of Page | What's New | My Stuff