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Old 10-10-2012, 07:14 PM
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skull1971
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Default RE: Are the new Thunder Tiger 40s actually 46s?

ORIGINAL: skooterII

I got it at Amarillo hobby house, is there going to be tech inspection before the races in Waco
yes

please check the stroke, a dial caliper down the glow plug hole will let you know right quick. If it's a 20mm stroke, it's a 46.

Oh and what is the case to head gap? it something like, if a dime will go and a nickel wont it's ok. but if a nickel will go into that gap, its a 46.