track car question....
Discussion
Hi All,
Quick one...
A friend at work has a 306 turbo diesel that he has been modding for trackday use....including junking the interior. Went for MOT today and while it passed, the chap commented that as all the weight had gone the rear brakes were basically doing toss all. So.... anyone have any thoughts as to whether this is a)to be expected and not all that important for a FWD car b) a problem and know a solution or have any thoughts?
cheers
Night
p.s. he is fitting a 306 rear axle with discs to it soon if that's relevant (is currently drums on the back!)
Quick one...
A friend at work has a 306 turbo diesel that he has been modding for trackday use....including junking the interior. Went for MOT today and while it passed, the chap commented that as all the weight had gone the rear brakes were basically doing toss all. So.... anyone have any thoughts as to whether this is a)to be expected and not all that important for a FWD car b) a problem and know a solution or have any thoughts?
cheers
Night
p.s. he is fitting a 306 rear axle with discs to it soon if that's relevant (is currently drums on the back!)
Did he mean they were locking up or not working?
I wouldn't trust comments from an MOT tester. Once spent watched my first Impreza being tested - up on a lift, spends 5 mins checks condition underneath etc, then proceeds to attempt brake test on 2wd rollers! After nearly hitting the wall when the 2 wheels NOT on the rollers drove the car off, he wanders over to me and says "Is this thing 4wd mate?"! Errrr.....didn't you just spend 5 mins with your head next to the prop shaft???
Steve
I wouldn't trust comments from an MOT tester. Once spent watched my first Impreza being tested - up on a lift, spends 5 mins checks condition underneath etc, then proceeds to attempt brake test on 2wd rollers! After nearly hitting the wall when the 2 wheels NOT on the rollers drove the car off, he wanders over to me and says "Is this thing 4wd mate?"! Errrr.....didn't you just spend 5 mins with your head next to the prop shaft???
Steve
LOL!!! You were lucky there! Or should i say HE was lucky, that you didt have to bash him!!
As for the Pugs brakes, most cars dont use the rear brakes to much effect with day to day driving, but they will work harder on the track. If the brakes are set up with to much rear bias, you'll end up spinning under heavy braking, like a go-kart. So nothing to worry about there.
As for the Pugs brakes, most cars dont use the rear brakes to much effect with day to day driving, but they will work harder on the track. If the brakes are set up with to much rear bias, you'll end up spinning under heavy braking, like a go-kart. So nothing to worry about there.
Cars use discs on the rear these days for a couple of reasons - 1) it's easier to change a set of brake pads than brake shoes 2) they are more effective in the wet (they disperse water quicker) and 3) they cool quicker if you're pressing on, vented rear discs especially. (and 4 which is subject to debate - they look 'cooler' in ally rims compared to brake drums...)
Reason 3 is the most important re this post. Regardless of the actual bias amount (fwd/rwd/mid/front or rear engine) the rears WILL be used during heavy braking - or the car will be totally unbalanced IMO.
Reason 3 is the most important re this post. Regardless of the actual bias amount (fwd/rwd/mid/front or rear engine) the rears WILL be used during heavy braking - or the car will be totally unbalanced IMO.
No probs with drums, they really do feck all anyway on rear of stripped fwd. I must get through over 20 sets of front pads to 1 set rears on Golf of same compound pad.
Dunno owt about pugs, but on golfs you can fiddle with the stock bias valve, or you could get a manual in car rear bias proportioner put in.
The rears 'should' do something tho, but its not a lot thats needed- or indeed wanted, except for some loons..
Dunno owt about pugs, but on golfs you can fiddle with the stock bias valve, or you could get a manual in car rear bias proportioner put in.
The rears 'should' do something tho, but its not a lot thats needed- or indeed wanted, except for some loons..
MOT man is talking total cock. The weight of a rear seat, spare wheel and interior trim is not so significant that the rear brakes are now redundant. Does he expect you to be able to do sports bike styleee stopees in a 306 diesel? Try running track pads in the front and road at the rear and the smell of burning and soft pedal will soon demonstrate the emptyness of his brain carrier. (All IMHO obviously)
nightmare said:
Hi All,
Quick one...
A friend at work has a 306 turbo diesel that he has been modding for trackday use....including junking the interior. Went for MOT today and while it passed, the chap commented that as all the weight had gone the rear brakes were basically doing toss all. So.... anyone have any thoughts as to whether this is a)to be expected and not all that important for a FWD car b) a problem and know a solution or have any thoughts?
cheers
Night
p.s. he is fitting a 306 rear axle with discs to it soon if that's relevant (is currently drums on the back!)
Quick one...
A friend at work has a 306 turbo diesel that he has been modding for trackday use....including junking the interior. Went for MOT today and while it passed, the chap commented that as all the weight had gone the rear brakes were basically doing toss all. So.... anyone have any thoughts as to whether this is a)to be expected and not all that important for a FWD car b) a problem and know a solution or have any thoughts?
cheers
Night
p.s. he is fitting a 306 rear axle with discs to it soon if that's relevant (is currently drums on the back!)
Waste of money putting discs on for the discs, unless it's just to facilitate better suspension. But as long as the brakes are in good condition and function as should be expected of them, they are not required to be effective.
funkyboozer said:
LOL!!! You were lucky there! Or should i say HE was lucky, that you didt have to bash him!!
As for the Pugs brakes, most cars dont use the rear brakes to much effect with day to day driving, but they will work harder on the track. If the brakes are set up with to much rear bias, you'll end up spinning under heavy braking, like a go-kart. So nothing to worry about there.
As for the Pugs brakes, most cars dont use the rear brakes to much effect with day to day driving, but they will work harder on the track. If the brakes are set up with to much rear bias, you'll end up spinning under heavy braking, like a go-kart. So nothing to worry about there.
Got your net connection up then Cuz...
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