How many of you dowl or pin your mains?
#1
Launching!
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How many of you dowl or pin your mains?
This seems to be pretty common in high hp and fi app so I hope I'm in the right forum?
At what power level is it recommended?
I have had my mains machined already. Is it to late?
Could anyone shed some light on this procedure?
At what power level is it recommended?
I have had my mains machined already. Is it to late?
Could anyone shed some light on this procedure?
#2
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anything over 800 hp and I'd considering them. I think it has to be done before a line hone incase anything moves...
I know my block had the mains moving a considerable amount at 1200 RWHP
I know my block had the mains moving a considerable amount at 1200 RWHP
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Also interested in this,any picks,write up on it. I plan on running iron 6.0 short filled and anything else that could help it I will do. Sure my engine builder knows what it is,but can someone give us guy that dont know some insite.
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#10
TECH Apprentice
looking good shawn..
i was actually thinking of something simular,
in the heavy diesel world, they have the 'sleeves' or dowels . that are hollow , and the bolt hole is inside the dowel
you know what i mean?
for the 7/16 sbc main stud, the sleeve is say 5/8 , and hollow, and the stud thread is inside the sleeve / dowel
how would this work ??
ash
i was actually thinking of something simular,
in the heavy diesel world, they have the 'sleeves' or dowels . that are hollow , and the bolt hole is inside the dowel
you know what i mean?
for the 7/16 sbc main stud, the sleeve is say 5/8 , and hollow, and the stud thread is inside the sleeve / dowel
how would this work ??
ash
#11
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looking good shawn..
i was actually thinking of something simular,
in the heavy diesel world, they have the 'sleeves' or dowels . that are hollow , and the bolt hole is inside the dowel
you know what i mean?
for the 7/16 sbc main stud, the sleeve is say 5/8 , and hollow, and the stud thread is inside the sleeve / dowel
how would this work ??
ash
i was actually thinking of something simular,
in the heavy diesel world, they have the 'sleeves' or dowels . that are hollow , and the bolt hole is inside the dowel
you know what i mean?
for the 7/16 sbc main stud, the sleeve is say 5/8 , and hollow, and the stud thread is inside the sleeve / dowel
how would this work ??
ash
#12
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This may sound dumb,but how are they drilled?Is it with the caps on? I know you said the mains may get recut but with it be a machine fit and no room for error. Sorry I'm not a machinest and the procedure info would be great.
Thanks again
Thanks again
#18
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yes,i machine the hole in the block and caps with the cnc,accuracy really needs to be greater than .001,you could probably do it in a std mill but it would be very time consuming.i'll post some pics later
as far as the caps being porous and brittle,they are much better than cast iron,i dont think you will be able to push air or water through them,they are actually a very strong piece,Brian's motor made 1400+ on stock caps with no issues other than cap walk.
as far as the caps being porous and brittle,they are much better than cast iron,i dont think you will be able to push air or water through them,they are actually a very strong piece,Brian's motor made 1400+ on stock caps with no issues other than cap walk.