| Author |
 Topic  |
|
| |
Current Topic Rating:  | Join the Forum to Rate this Topic at: www.VNCommodore.com Support Forums
|
|
|
foxtrot.tango
P Plater
86 Posts
 |
 Posted - 02 Sep 2006 : 01:39:20 AM
|
|
As far as i've known when you hit the brakes, only the front discs are being braked and the rear brakes are completely separately controlled by the hand brake. Am i right or are the rear brakes also used when foot braking but not as much?
|
VN Executive 1988 - Auto 3.8V6 |
|
Report to Moderator |
|
|
mouce
National Driver
1525 Posts
|
Posted - 02 Sep 2006 : 11:00:30 AM
|
When you get on the pedal, all four discs are being used to stop the car, the fronts do much more to actually stop the car, because as the weight transfer occurs more load goes on to the front wheels, thus allowing them to grip the road better. That's why the front brakes on cars are always bigger than the ones on the rear.
The handbrake does act on the rear wheels only, that much is true, but the handbrake in the VN is a drum type brake, and is housed inside the rear rotor. So the fronts only operate with the peadl, the rear discs only operate under the pedal and the rear drum operates only with the handbrake.
|
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
Report to Moderator  |
|
|
foxtrot.tango
P Plater
86 Posts
|
Posted - 02 Sep 2006 : 1:08:22 PM
|
| If my read disc pads are badly worn, would replacing them make a fairly noticable change when doing emergency stops? |
VN Executive 1988 - Auto 3.8V6 |
| Report to Moderator |
|
|
mouce
National Driver
1525 Posts
|
Posted - 02 Sep 2006 : 1:25:38 PM
|
The rear pads do make some difference in a 'hard' stop, but not heaps...that said...if they are worn replace them, because if they start to damage the rotor it's a lot more expensive (and a hell of a lot more screwing around).
I've done a bit of testing with emergency stops in my car, and I've found that having good quality pads up front and fresh brake fluid is the BEST way to stop quickly (no surprise there right?). The rear pads do have a little impact on the stopping distance, but the fronts are much more noticable. Good quality pads like Bendix pads are perfect for the front, and for the rear, pretty well anything will do...a soft pad would be a good bet for the rear. Being up the back they don't wear too badly (even if they are soft), and being soft will give you much better stopping power, and wear the rotors less.
Use a good quality brake fluid and do a full system bleed (if you haven't done one in the last 12 months), I personally use Castrol brake fluid, and have never had a problem with it.
There's a lot of other factors that come into braking performance, suspension is one of the biggest ones, followed by tyre pressure, followed by tyre wear. Even bald tyres will stop fairly well if they are down at about 20PSI ;)
Have you been having problems with the brakes? |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
| Report to Moderator |
|
|
trizo
Forum Moderator
3091 Posts
|
Posted - 05 Sep 2006 : 7:34:39 PM
|
| castrol dot 3>>>>>>>>>>>>>>>>>>...........best brake fluid in the world!! |
3 can keep a secret if 2 are dead |
| Report to Moderator |
|
|
Brum
P Plater
65 Posts
|
Posted - 18 Sep 2006 : 8:36:01 PM
|
I already have new Bendix pads, front and rear. But i was wondering what size are the stock V6 front rotors? Are the V8 front bigger??
Anyway, looking at getting some bigger rotors and calipers for the front end, as this does majority of the braking! Are there any bigger braking from later models that will fit straight on, and will braided brake lines benifit me?? HSV brakes will be expensive, so are there any other brakes that fit straight on?? Thanks |
| Report to Moderator |
|
|
trizo
Forum Moderator
3091 Posts
|
Posted - 18 Sep 2006 : 9:20:15 PM
|
| mate if u gonna upgrade your brake go the vt brakes!! easy upgrade and works a treat!and yeah the v8 r bigger!;P |
3 can keep a secret if 2 are dead |
| Report to Moderator |
|
|
mouce
National Driver
1525 Posts
|
Posted - 19 Sep 2006 : 8:17:11 PM
|
To do the VT upgrade, you will also need to replace the master cylinder. If you're serious about wanting to stop, it's a worthwhile upgrade.
But to do that you'll also need to get the VT hub adaptors, because the struts are slightly different. Although you can normally find full kits on eBay to do it. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
| Report to Moderator |
|
|
trizo
Forum Moderator
3091 Posts
|
Posted - 19 Sep 2006 : 8:53:27 PM
|
| well hey I thought the master cyl was right and didnt need 2 b changed!! y is this is it a differnt cylinder wat about the booster? |
3 can keep a secret if 2 are dead |
| Report to Moderator |
|
|
mouce
National Driver
1525 Posts
|
Posted - 19 Sep 2006 : 9:07:10 PM
|
| The VN has a small 3/4" master, to get a good pedal feel from the VT upgrade you need to use the 1" |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
| Report to Moderator |
|
|
trizo
Forum Moderator
3091 Posts
|
Posted - 19 Sep 2006 : 9:29:13 PM
|
| oooooooohhhhhhhhhhhhhhhhhhh!!!well there u go and I wondered y my mates were still a bit spongey even arfter bleedin the sukers! |
3 can keep a secret if 2 are dead |
| Report to Moderator |
|
|
Brum
P Plater
65 Posts
|
Posted - 20 Sep 2006 : 8:44:32 PM
|
| How much do the VT master cyclinder cost and the hub adaptors approx?? Would i be better putting on a set of the DBA 5000 gold, slotted rotors which i can get for VN/VP aftermarket etc. Or would these not be as good?? |
| Report to Moderator |
|
| |
Topic |
|
Topic Locked
