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bug66
Samba Member
Joined: February 25, 2010
Posts: 110
Location: OSLO, NORWAY
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 Posted: Sat Feb 04, 2012 5:28 am Post subject: Notching mahle 94's |
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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
Samba Member
Joined: May 16, 2007
Posts: 873
Location: Portland, Oregon
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| Posted: Sat Feb 04, 2012 8:01 am Post subject: |
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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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"...these cars were preferred by the racers because the strut front suspension results in far superior handling than the regular torsion bar front end..." - Keith Seume. |
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mark tucker
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Joined: April 08, 2009
Posts: 23950
Location: SHALIMAR ,FLORIDA
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| Posted: Sat Feb 04, 2012 9:25 am Post subject: |
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| hmm why the smetrickle notches?just tryen to get most cc's? |
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modok
Samba Member
Joined: October 30, 2009
Posts: 27636
Location: Colorado Springs
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| Posted: Sat Feb 04, 2012 3:00 pm Post subject: |
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.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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Joined: May 18, 2003
Posts: 5756
Location: West Valley City, Utah
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| Posted: Sat Feb 04, 2012 5:24 pm Post subject: |
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| modok wrote: |
, long as you don't drill the bottom to balance
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Ugh, I cringe when I hear of people balancing pistons this way...
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Eric Allred
You have to remember something: Everybody pities the weak; Jealousy you have to earn. |
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mark tucker
Samba Member
Joined: April 08, 2009
Posts: 23950
Location: SHALIMAR ,FLORIDA
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| Posted: Sat Feb 04, 2012 5:27 pm Post subject: |
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| or putting a .220 deep pocket in a .220 thick piston top. |
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modok
Samba Member
Joined: October 30, 2009
Posts: 27636
Location: Colorado Springs
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| Posted: Sat Feb 04, 2012 5:33 pm Post subject: |
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yeah, I agree  |
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raymon covey
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Joined: April 30, 2005
Posts: 192
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| Posted: Sat Feb 04, 2012 6:56 pm Post subject: Notches |
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| 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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Joined: May 16, 2007
Posts: 873
Location: Portland, Oregon
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| Posted: Sun Feb 05, 2012 10:38 am Post subject: |
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| 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.
_________________
"...these cars were preferred by the racers because the strut front suspension results in far superior handling than the regular torsion bar front end..." - Keith Seume. |
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