Notification

Icon
Error

Login


Take the time to read our Privacy Policy.

EFI304HT Offline
#1 Posted : Thursday, 27 August 2009 9:06:56 AM(UTC)
EFI304HT

Rank: Member

Reputation:

Groups: Registered
Joined: 9/01/2008(UTC)
Posts: 21

Can anyone tell me, if a 1976 Hx gts would have cast, or alloy PBR calipers?
Cheers.
74HJLS Offline
#2 Posted : Thursday, 27 August 2009 4:38:59 PM(UTC)
74HJLS

Rank: Member

Reputation:

Groups: Registered
Joined: 20/03/2005(UTC)
Posts: 316

Pretty sure they are cast iron, The alloy ones first came out on the HZ, Dr Terry will correct me if I am wrong.

Cheers,
Pete.
Old Holdens never die, they just go faster.
Cheers,
Pete.
Old Holdens never die, they just go faster.
Dr Terry Offline
#3 Posted : Thursday, 27 August 2009 6:35:42 PM(UTC)
Dr Terry

Rank: Veteran

Reputation:

Groups: Moderator, Registered
Joined: 1/03/2005(UTC)
Posts: 6,114

Thanks: 1 times
Was thanked: 219 time(s) in 199 post(s)
A 1976 HX would most likely have cast iron calipers but they could be either PBR or Girlock.

The first alloy calipers began to appear in very late 76/early 77 (depending on which plant) at around the same time as the larger cast iron big-nut master cylinder appeared.

Dr Terry.
If at first you don't succeed, just call it Version 1.0
we wreck 81837s only Offline
#4 Posted : Thursday, 27 August 2009 7:11:29 PM(UTC)
we wreck 81837s only

Rank: Veteran

Reputation:

Groups: Registered, Veteran
Joined: 4/03/2008(UTC)
Posts: 2,151

Was thanked: 1 time(s) in 1 post(s)
quote:
Originally posted by Dr Terry
A 1976 HX would most likely have cast iron calipers but they could be either PBR or Girlock.

The first alloy calipers began to appear in very late 76/early 77 (depending on which plant) at around the same time as the larger cast iron big-nut master cylinder appeared.

Dr Terry.


DOC,

which are the best calipers to use? i recall you mentioning them in a previous topic but i cant recall, was it the pbrs?
i be in syd next week, please email me you details, i shout ya a gelati..haha


"We wreck = KNOWLEDGE" lolololol
Dr Terry Offline
#5 Posted : Thursday, 27 August 2009 7:32:30 PM(UTC)
Dr Terry

Rank: Veteran

Reputation:

Groups: Moderator, Registered
Joined: 1/03/2005(UTC)
Posts: 6,114

Thanks: 1 times
Was thanked: 219 time(s) in 199 post(s)
Ive had this question quite a few times but there is no easy one-line answer.

For the HQ to WB series there is a choice of 4 different front disc brake calipers but its probably easier to suggest which ones not to use, rather than recommend just one type.

The 4 types (in order of release) are:-
1. PBR cast iron
2. Girlock cast iron
3. PBR alloy
4. Girlock alloy

Types 3 & 4 still have cast iron brackets but the head is alloy.

Type 1 are plentiful & reliable with a good choice of pad compounds, but they are heavy.
Type 2 are also plentiful & reliable, with more pad area than Type 1, but less pad compound choice, but they are even heavier.
Type 3 are the the ones I would NOT recommend. They have the smallest pad area, have the least choice of pad compounds available & continually have problems with noisy sliders.
Type 4. These are similar to Commodore calipers - nice & light, relatively trouble free, but not as big in the pad area as Types 1 & 2.

I hope Ive cleared that up, or have I ?

Dr Terry
If at first you don't succeed, just call it Version 1.0
we wreck 81837s only Offline
#6 Posted : Thursday, 27 August 2009 8:53:17 PM(UTC)
we wreck 81837s only

Rank: Veteran

Reputation:

Groups: Registered, Veteran
Joined: 4/03/2008(UTC)
Posts: 2,151

Was thanked: 1 time(s) in 1 post(s)
quote:
Originally posted by Dr Terry
Ive had this question quite a few times but there is no easy one-line answer.

For the HQ to WB series there is a choice of 4 different front disc brake calipers but its probably easier to suggest which ones not to use, rather than recommend just one type.

The 4 types (in order of release) are:-
1. PBR cast iron
2. Girlock cast iron
3. PBR alloy
4. Girlock alloy

Types 3 & 4 still have cast iron brackets but the head is alloy.

Type 1 are plentiful & reliable with a good choice of pad compounds, but they are heavy.
Type 2 are also plentiful & reliable, with more pad area than Type 1, but less pad compound choice, but they are even heavier.
Type 3 are the the ones I would NOT recommend. They have the smallest pad area, have the least choice of pad compounds available & continually have problems with noisy sliders.
Type 4. These are similar to Commodore calipers - nice & light, relatively trouble free, but not as big in the pad area as Types 1 & 2.

I hope Ive cleared that up, or have I ?

Dr Terry


ummm, sort of doc, which type did they modify for A9X with the different fluid hose inlet?

i sent ya an email doc!!

"We wreck = KNOWLEDGE" lolololol
Dr Terry Offline
#7 Posted : Friday, 28 August 2009 7:19:44 PM(UTC)
Dr Terry

Rank: Veteran

Reputation:

Groups: Moderator, Registered
Joined: 1/03/2005(UTC)
Posts: 6,114

Thanks: 1 times
Was thanked: 219 time(s) in 199 post(s)
A modified Type 4 is used on the A9X.

Dr Terry
If at first you don't succeed, just call it Version 1.0
Users browsing this topic
Guest
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.

Powered by YAF | YAF © 2003-2025, Yet Another Forum.NET
This page was generated in 0.062 seconds.