-
29th March 2012, 09:04 PM
#11
Hi JoseM
All the systems are the same .There is no proportioning valve the only valve is the load sensing valve.
Your problem can be solved by increasing the booster output , replacing the master with a smaller diameter one [not recommended ] You can also fit high coefficient brake pads.
If the load sensing valve is not adjusted or working properly you can either over brake or under brake the rear which will effect overall braking.
also check the vacuum output ant the booster through the whole braking range
-
The Following User Says Thank You to pearcey For This Useful Post:
MudRunnerTD (2nd September 2013)
-
29th March 2012 09:04 PM
# ADS
Circuit advertisement
-
30th March 2012, 01:53 AM
#12
Originally Posted by
Rip'n'Shred
Its been a long time since I did the brake module in my apprenticeship but I think????? if you change the slave cylinder size to a larger size you increase the force applied to the pads but reduce the distance the piston will move. I think???? Maybe someone can confirm this??? Struggling to remember which way around it goes.
I would try to contact a brake expert if I was you.
Yeah, that is part of the problem, our "experts" dont know their arss from a hole in the ground.
I've been all over the net and haven't been able to find pressure ratios for neither system.
What Im trying to figure out is if it would be worth it, changing master cyl and valve (not the rear one (proportioning), they are the same part # for all applications). See, all the components are working perfectly, the thing is that they were not configured to hold a 120lbs/38.5" wheel, therefore Im trying to figure out a way to generate more power than stock. In my truck, stock no longer works for anything anymore...
-
-
31st March 2012, 11:59 PM
#13
Usually the master cylinder is a different bore size between the front disc system and 4 wheel disc system. The ABS system does not have any effect on braking unless you have a traction loss or a hard brake application. Check with nissan spares for the part number difference with the master cylinder. Not sure what other valve you are talking about as the master cylinder is what controls the amount of pressure that goes to the calipers by using different size pistons and bores for front and rear brakes.
-
-
2nd September 2013, 08:57 AM
#14
I forgot about this thread.
I swaped master and booster for a Mustang's hyd booster. It does certainly have some stopping power now...
-
The Following User Says Thank You to JoseM For This Useful Post:
MudRunnerTD (2nd September 2013)
-
2nd September 2013, 10:19 AM
#15
Moderator
Originally Posted by
JoseM
I forgot about this thread.
I swaped master and booster for a Mustang's hyd booster. It does certainly have some stopping power now...
was it a straight swap? have you got any pics? where can i buy one? How much was it?
Its a Nissan! =====> Its a Keeper!! ....... Got a TD42 in it BONUS!!
....... I'm a lucky bugger! I've got 2 of em!
Check out my Toy -->
MudRunnerTD's GQ From the Ground Up
Originally Posted by
Rogue Dung Beetle
Wish it was Nissan though, Toyotas just can't keep up with the Pootrol pace.
The only good thing about an 80 series is..... the front end?? Wrong!!, the Engine?? Wrong!! the Full Time 4WD system?? Wrong!! Its the NissanPatrol.com.au stubby holder fitted over the transfer lever.
WARNING: Towballs used for recoveries can, and do kill people and damage property.
-
-
2nd September 2013, 07:53 PM
#16
Expert
You will need to change the master cylinder, as Rip'n'shred has stated, the swept volume of the original cylinder would have been designed for a specific system, you will probably find that the piston area for the rear brakes is too small. The piston may be bottoming out or reaching the limit of its travel but still not providing enough hydraulic pressure to provide effective braking. The proportioning valve will adjust pressure depending on load but if you don't have enough pressure to start with, it useless. Larger piston = larger surface area = larger pressures with less piston travel = better brakes.
As stated earlier, time to go to a brake expert.
6.5 Chevy, roof rack, uhf, Spotties, dual batteries, ARB Bullbar, 12, 000lb winch, (unfortunately not Warn) Safari snorkel, Dieselgas conversion, 2in lift, engine watchdog fitted, boost/EGT guages, front elokka fitted, rear power supply mods, turbo timer, dual wheel carrier rear bar.
-
-
3rd September 2013, 01:02 PM
#17
Last edited by JoseM; 3rd September 2013 at 01:05 PM.
-