R35 Brake Booster & Master Mod - R32 GTR - Complete

[deongster]

On the R35 BM size - confirmed Fitting Size = M12 x 1.0 

R32 Fittings Sizes = -3 JIC

Cost so far:

Brake Master - $189

Brake Booster - $149

3M of 10mm Silicone Hoses - $34

Aluminium One Way Valve - For Booster - $13.50

HEL Custom Lines below - $150

Left Fitting -Swivel Male

Left Fitting Size - M12x1.0  

Left Fitting Angle - 70°

 

Right Fitting - Swivel Female

Right Fitting Size - 3/8" x 24 UNF (-3 AN JIC)

Right Fitting Angle - 45°

Length - 20cm

 

I rounded the nut on the master for the old R32 brake line - it was completely seized - so i decided to custom 2 lines from Master to the ABS unit.

Front Master Port - $75.00

 

Left Fitting - Fixed Male 

Left Fitting Size - 3/8 x 24 UNF (-3 AN JIC) 

Left Fitting Angle - Straight 

Right Fitting - Swivel Male 

Right Fitting Size - 3/8 x 24 UNF (-3 AN JIC) 

Right Fitting Angle - 70° 

Length - 97cm - extra 1cm

Rear Master port - $75.00

Left Fitting - Fixed Male 

Left Fitting Size - 3/8 x 24 UNF (-3 AN JIC) 

Left Fitting Angle - Straight 

Right Fitting - Swivel Male 

Right Fitting Size - 3/8 x 24 UNF (-3 AN JIC) 

Right Fitting Angle - 70° 

Length - 91cm - extra 1cm

This is how the line will roughly look like:

This is roughly how it looks out of the car ^ i have made a few adjustments to the Angle of the BMC Fitting - as well as threw the adapter away cos it was the wrong size - and remade the whole line again. But it looks very similar - the most updated line specs is above

This is how i plan to run it - please use imagination a bit - i will take more pictures once its installed. But the 2 lines will run across the firewall similar to the original hard lines.

Confirmed the Plug is the same as BM57 - its quite hard to get the plug - it is shared with a LOT of different cars - R35, Pathfinder, G35, Subaru WRX, Ford Fiesta - but its almost impossible to buy one - and 100% impossible to get in Au

I found the details in the thread below - have to thanks to @BK for ALL the research he did - especially in where to purchase. MOTORCRAFT WPT-1385 is the part number - meant for Ford. Wired up - it will fit perfect.

Below is the Final completion - remove the 4 nuts in the car cabin at the brake - and remove the R32 BMC and Booster

R32 Right booster

R32 and R35 U Clevis and - the one at the bottom is from the R32 GTR - MUST reuse this for R35 Booster

There is a Spacer for the R35 that looks like this - this will not need to be used - it should be mounted directly on the FireWall

Just use the Gasket and put the Booster on the Firewall

Roughly how it looks when mounted up

This is the complete work - with 2 sets of Custom HEL lines.

Once installed - i found the following - the brake pedal is slightly lower than the R32 Original

Overall it was very easy to do - and a massive learning process for me. Had a lot of help along the way from @BK and @Meap that did all these first. I hope whoever that attempts this moving forward - this Post will help you. The biggest problem i faced when doing this was the BMC Fitting size and how to run the lines. As well as old rounded lines on original lines.

The brake pedal 100% feels firmer and more solid - i will be doing a track day on Thursday - will report back after.

Good luck!!

[Duncan]

Great post!

If you want the brake pedal higher, you can adjust it at the threaded rod/clevis. If you have run out of length the rod could be modified/lengthened

[deongster]

1 hour ago, Duncan said:

Great post!

If you want the brake pedal higher, you can adjust it at the threaded rod/clevis. If you have run out of length the rod could be modified/lengthened

hey duncan - yeah its already at max now - so im going to give it a go on Thursday - and if it doesnt hamper the braking and heeling - then ALLLLLLLL GOOOOD!

[ianp]

Could you use the BM57 with it or does it have to be an R35 BMC?

[GDZ-14R]

Hey @deongster, where did you find the booster and master for such good prices? Just second hand luck of the draw?