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Notching mahle 94's
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bug66
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PostPosted: Sat Feb 04, 2012 5:28 am    Post subject: Notching mahle 94's Reply with quote

I've searced but can't find what I'm searcing for.


How much can you notch a set of forgeed 94's?

I need to cut 3,25mm on the exhaust (0,128")
and 2,75mm on the intake (0,108")

Is it enough material to o cut this?
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catbox
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PostPosted: Sat Feb 04, 2012 8:01 am    Post subject: Reply with quote

I just had mine machined at Jaycee and Jack said that you can go as deep as 0.220" on the Mahle's.

These have all been notched to 0.160" to remove 6cc's from the chamber.
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Smile
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mark tucker
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PostPosted: Sat Feb 04, 2012 9:25 am    Post subject: Reply with quote

hmm why the smetrickle notches?just tryen to get most cc's?
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modok
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PostPosted: Sat Feb 04, 2012 3:00 pm    Post subject: Reply with quote

.125 deep should be no problem, long as you don't drill the bottom to balance

the thickness of the crowns is usually .220-.250
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Eaallred
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PostPosted: Sat Feb 04, 2012 5:24 pm    Post subject: Reply with quote

modok wrote:
, long as you don't drill the bottom to balance


Ugh, I cringe when I hear of people balancing pistons this way...
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mark tucker
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PostPosted: Sat Feb 04, 2012 5:27 pm    Post subject: Reply with quote

or putting a .220 deep pocket in a .220 thick piston top.
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modok
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PostPosted: Sat Feb 04, 2012 5:33 pm    Post subject: Reply with quote

yeah, I agree Shocked
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raymon covey
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PostPosted: Sat Feb 04, 2012 6:56 pm    Post subject: Notches Reply with quote

If you will notice the notches fall very close or within the piston boss area which is much thicker. I have notched 180 without any problem. You should not have a problem with the notches you propose.
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catbox
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PostPosted: Sun Feb 05, 2012 10:38 am    Post subject: Reply with quote

mark tucker wrote:
hmm why the smetrickle notches?just tryen to get most cc's?


Yup just needed the CC's to make the chamber larger.

Smile
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