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LJ Standard disc Brake Improvements

LJ Brakes LC Disc

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#51 S pack

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Posted 12 December 2023 - 06:26 AM

went for these 

 

https://www.vmaxbrak...-xu-1-1972-1973

 

with theses spacers

 

https://www.powerbra...size1/offset/0?

 

Hopefully will get time to fit over the christmas break & will report back.

Cheers for all the help.

Bruce, just note that you do not use the two kidney shaped caliper mounting spacers on LC/LJ Torana. They are HK,T,G only.



#52 salamiman

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Posted 12 December 2023 - 11:55 AM

Bruce, just note that you do not use the two kidney shaped caliper mounting spacers on LC/LJ Torana. They are HK,T,G only.

Thanks Dave



#53 grumpy xu1

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Posted 12 December 2023 - 07:25 PM

Thanks Dave



Good work Dave, i was going to advise the same. Bottom gold 1's only.

#54 salamiman

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Posted 23 December 2023 - 05:30 PM

Attached File  PXL_20231223_050101278.jpg   70.94K   1 downloads

Got one disc done today.

Merry Christmas to all.

 

 

Attached Files



#55 claysummers

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Posted 23 December 2023 - 07:46 PM

Looking good. Vmax do slotted/dimpled rotors for HR also I see.


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#56 grumpy xu1

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Posted 26 December 2023 - 08:08 PM

Let us know your thoughts on the new rotors ect mate, once she's up and running.

#57 salamiman

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Posted 03 January 2024 - 08:30 PM

Let us know your thoughts on the new rotors ect mate, once she's up and running.

will do

rotors are in,

but my speco fuel reg sprung a leak just b4 testng, bloody lucky, its on the exhaust side & could have been a disaster, boom!

Ordered a new holley one, no fittings inc, so waiting on some 3/8 npt barbs ect, will now fit on the drivers side.

Report back soon!



#58 claysummers

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Posted 03 January 2024 - 09:47 PM

Bugger. I’ve got a speco one and heard about them springing a leak. Malpassi are apparently good.


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#59 salamiman

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Posted 04 January 2024 - 01:17 PM

Bugger. I’ve got a speco one and heard about them springing a leak. Malpassi are apparently good.


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Did see on the back of the speco unit 7lb max, I was feeding it with a SBC manual pump, I assume it supplied over 7lb.



speco unit was 2 yrs old



#60 claysummers

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Posted 04 January 2024 - 04:40 PM

Thanks for that qualification. I'm running AC glass bowl type, though I may have changed the base over to the later blue black version. Anyway they are rated under 6psi, so good to know.

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#61 salamiman

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Posted 06 January 2024 - 08:14 AM

I originally ran the SUs back in the day with a STD red 173(2650) Manual fuel pump with no Reg & had no overflow issues.

Went with the SBC pump this time so i had no fuel supply issues(overflowed so need a Reg), sometimes bigger is not always better.

I never tested the amount of fuel supplied with the orig unit, it may have been fine?



#62 claysummers

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Posted 06 January 2024 - 12:12 PM

My mate was running his 300 flywheel hp 202 webers off standard pump no reg, but he put roller lifters and had to go to electric pump.

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#63 salamiman

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Posted 06 January 2024 - 08:18 PM

There you go, I would have been fine, I wouldnt be anywhere near that, if i have any probs with this holley reg, ill revive the old pump, & one less thing to worry about.



#64 salamiman

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Posted 04 April 2024 - 07:47 PM

Hi All,

 

Back up & running again.

 

Brake report.

 

Booster tested as per S pack Dave, all good, but note this booster is now on 52 yrs old??

 

Cam is crow 35803, from mem 108 lobe separation, 248 @ .05.

 

Front Brakes wont lock up, but pull up pretty quick, passed pink slip brake test easily.

 

New master, reco calipers, new brake rubber lines, new rear slaves & adjusted, all lines bled, no rusty brake fluid???

 

Wondering if the diaphragm has hardenened or became too stiff, am i producing enough vac with said cam?

 

Any thoughts appeciated.


Edited by salamiman, 04 April 2024 - 07:49 PM.


#65 dattoman

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Posted 04 April 2024 - 09:05 PM

How much vac do you have ?

Tested in inches of mercury



#66 salamiman

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Posted 05 April 2024 - 01:21 PM

Was wondering that myself, dont have a vac gauge, will get a hold of one, how much am I chasing for decent braking with a std booster?



#67 dattoman

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Posted 08 April 2024 - 09:56 PM

Was wondering that myself, dont have a vac gauge, will get a hold of one, how much am I chasing for decent braking with a std booster?

 

18-20"



#68 salamiman

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Posted 12 April 2024 - 09:15 PM

18-20"

Thanks dattoman.

Appreciated







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