Trev,
With the brakes that are in front of your 1600 it is quite likely that you
are going the correct way. The car that Mick asked about has stock 1600
disc/drum and the advice for that setup would be very different for yours.
For yours going from your description of brake performance and lock
characteristics then increasing the rwc by 1/16" seems a reasonable
modification to me to start with. In saying that for the type of racing that
you're doing a fully adjustable bias bar if allowed is the only way you're
going to get complete balance, otherwise you're swapping things around for a
best compromise. The prop valve and rwc size will only give you a good base
point as in competition conditions will vary from day to day and track to
track, little things like fuel load, tyre wear, pad temperature and track
temperature etc have a major effect on braking performance and a tilton is
the best way to keep everything under control during a full on go.
regards
terry
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Pooley, Trevor
Sent: Monday, 14 August 2000 11:07 AM
To: '[EMAIL PROTECTED]'
Subject: RE: 1600 rear brake cylinders
I was just about to do this job myself on the 1600 race car. I have a 7/8
master cylinder with 240K twin spots on the front and std 1600 rears. I was
just about to swap the 13/16 rear wheel cylinders for 240K 7/8 wheels
cylinders. At the moment I have front wheel lockup (metal kings), no rear
wheel lockup apart from down changes (found this out after flatspotting the
front tyres at Sandown a few week back). My idea was to have the same system
as the 240K on the lighter 1600.
I am also looking at sticking the 240K rear springs in the 1600. to get the
back end lower (cutting if necessary).
Now I'm a little confused. Am I doing the right thing? Any advice wanted.
Trev
-----Original Message-----
From: Terry & Heather [mailto:[EMAIL PROTECTED]]
Sent: Sunday, 13 August 2000 23:00
To: [EMAIL PROTECTED]
Subject: RE: 1600 rear brake cylinders
Hi Mick,
Comments under your questions below.
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Mick Ralph
Sent: Saturday, 12 August 2000 6:06 PM
To: [EMAIL PROTECTED]
Subject: 1600 rear brake cylinders
List (and Terry)
Once again I want to ask a question that has been covered here many times.
SOB!!
Not for a while though, so you're forgiven (:-
What size rear wheel cylinders should u run for improved braking on the 1600
rear drums?
What model do they come from?
The preferred rwc for 1600 drums are from the 1200 Coupe 11/16" or 17.46mm,
make sure they don't sell you 1200 sedan cylinders as these are the same
size as 1600's. The smaller cylinders may be standard for the late model
1200 ute with front discs. These will alter the bias slightly to the front
and avoid rear lockup with a harder front pad fitted. The standard 1600 rwc
is 13/16" or 20.64mm.
Do new cylinders come with adjustors? (the old ones are stuffed!!)
No, you will get adjusters from a 180B.
regards
Terry
Thanks in advance
cheers
Mick
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