R35 GTR servo and master cylinder conversion

[deongster]

Just now, Meap said:

I know you also commented on my post, but you didn't post this picture there. I don't use that spacer, just put a paper gasket between the booster and the firewall and you're good to go!

Thank you so much - appreciate it!

[deongster]

On 24/06/2023 at 9:56 PM, Meap said:

I know you also commented on my post, but you didn't post this picture there. I don't use that spacer, just put a paper gasket between the booster and the firewall and you're good to go!

Few questions - just want to make sure i did it right. @Meap @McGarryR32

The “U” the clevis pin goes through is shorter on the 35 but can be swapped over for your original one as they’re the same thread.  (regarding this) do you notice your brake pedal sitting a bit lower than the stock height? i had to adjust the switch lower so that its touching. i have adjusted the bolt to the end of the U but the pedal is a bit lower - is it the same for you guys as well?

[burn4005]

does anyone know the specs of the R35 master cylinder, rear ratio and knee point?

the BM57 is a 0.4 rear ratio with a 435psi knee. I'm looking for someone with a much lower knee pressure. the piston area of the R35 brakes isnt that big so might not work for me but this is interesting..

the other option for me is a GU patrol master cylinder and booster and do the prop valve externally.

[niZmO_Man]

Depending on your use case, prop valve will almost always be a better choice.

[R32 TT]

On 26/9/2024 at 8:34 AM, burn4005 said:

does anyone know the specs of the R35 master cylinder, rear ratio and knee point?

the BM57 is a 0.4 rear ratio with a 435psi knee. I'm looking for someone with a much lower knee pressure. the piston area of the R35 brakes isnt that big so might not work for me but this is interesting..

the other option for me is a GU patrol master cylinder and booster and do the prop valve externally.

How did you get on with this?  Did you end up fitting a prop valve?