944t/968 M030 Caliper question
#1
Instructor
Thread Starter
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Hi all.. putting my front end together on my race car. Updated Hubs and adapters to use M030 (928 S4) Brembos. I bought used a while ago and just getting around to putting them in. Not sure if they are M030, S4 or 993 calipers originally and I thought it was only the bleeder location that was different between mounting front of disc to rear of disc. Trying to figure out what I have. Been looking up pics of S4 and M030 calipers and it seems that some have the larger bore piston near the bleeders and some have the smaller bore near the bleeders. I'm hoping that it is the larger bore that is at the top near the bleeder in a 944/968 orientation but I'd like confirmation.
BTW my confusion comes from seeing pics where larger is on top like:
http://www.jackals-forge.com/lotus/968cs/beard/m030.jpg
and larger on bottom like:
http://forums.pelicanparts.com/uploa...1259698327.jpg
Thanks
BTW my confusion comes from seeing pics where larger is on top like:
http://www.jackals-forge.com/lotus/968cs/beard/m030.jpg
and larger on bottom like:
http://forums.pelicanparts.com/uploa...1259698327.jpg
Thanks
#2
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Rennlist Member
Rennlist Member
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The larger piston should be trailing the smaller one given normal rotor rotation so that should always be the same but bleeder position is determined by where they mount which I think is 2 o'clock on the LF on a 928 or 944 Turbo, but 9:00 - 11:00 on a 911.
-Joel.
-Joel.
#3
Rennlist Member
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Rebuilt M030 caliper off an '89 944 Turbo.
Bleeders mount to the top as mentioned.
Bleeders mount to the top as mentioned.