Certing s13 brake conversion.

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Datsunb120PN
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Certing s13 brake conversion.

Postby Datsunb120PN » Mon May 06, 2013 8:41 pm

Has anyone had an s13 silvia brake conversion certified. I am building a 4age powered datsun 1200, have the engine and gearbox all mounted and am finishing the body; rusty, dented nightmare and have made the adapter out of 12mm. wanted too know as the rear brakes are standard if you need some sought of pressure regulator in the front to avoid it dipping at the front on application of the brake. I am running holden barina master cylinder and booster tha thas been moved over 20mm too allow for room for manifold. feel free too ask for any pictures of the build.

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classicdat
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Re: Certing s13 brake conversion.

Postby classicdat » Mon May 06, 2013 9:21 pm

I have not done the conversion or any cert stuff, but I would think they would have a problem if the rear locked up first, they expect the front to lock up first, just how easily will be the question. How does the bore of the Barina Cyl. compare to the Datsun one, this may help some with more knowledge of the conversion comment on how it will go with std breaks on the back.
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Bartman
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Re: Certing s13 brake conversion.

Postby Bartman » Mon May 06, 2013 9:24 pm

I don't know of anyone who's had it certed (Doesn't mean is hasn't been)
I showed it to a cert guy, and he said it looked legit as.
You may need a bias valve. (It's pretty common with a brake swap) I run standard sunny rear brakes on my 1200. And I think I have a wee bit too much rearward bias.
They don't call me the man with the rubber arm for nothing you know.............

grant76
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Re: Certing s13 brake conversion.

Postby grant76 » Tue May 07, 2013 8:37 am

if you mean just calipers and rotors on 120y struts have had this certed 3 times, never had to fit a brake bias valve. If you're talking about complete s13/s14 strut i haven't certed that one

Datsunb120PN
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Re: Certing s13 brake conversion.

Postby Datsunb120PN » Wed May 08, 2013 6:51 pm

Its just s13 brakes on b120 stuts and the barina master cylinder is 13/16" same as the standard b310 sunny unit. Chances are being a ute with no weight on the rear I will need a bias valve.

grant76
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Re: Certing s13 brake conversion.

Postby grant76 » Wed May 08, 2013 7:23 pm

wasn't needed in my 2 utes. fit one if you want to though


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