12a rear cast plate question
12-18-09, 05:47 PM
#1
12a rear cast plate question
Me and my dad are prepping and engine for pure racing, boosting. now its a 12a and its gona be carbed and bridged ported. we are looking for around 350hp and i have heard that the rear cast plate on the 12a may crack over 250hp. the solution to that was to find a 74-76 13b rear cast plate, which are stronger but impossible to find, the question isHas anything been done to reinforce the rear cast plate of the 12a for such hp or am i sol on this one?
12-20-09, 12:01 AM
#6
no, mazdatrix has a stud kit for the 12a as well, i emailed them on what needs to be machined and stuff to make them fit, still waiting for an answer. So if i dowel pin or stud kit, i should be k with the rear cast plate taking into account that no detonation will occur.
12-21-09, 06:21 PM
#7
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no, mazdatrix has a stud kit for the 12a as well, i emailed them on what needs to be machined and stuff to make them fit, still waiting for an answer. So if i dowel pin or stud kit, i should be k with the rear cast plate taking into account that no detonation will occur.
if you have some kind of cross triggering of the ignition, or detonation, its going to break dowels studs or not
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12-21-09, 06:54 PM
#8
if you do not have detonation, or misfires or cross triggering of the ignition (its very bad if the signals get crossed firing the trailing early = broken stuff) the stock plate should be fine @350hp.
if you have some kind of cross triggering of the ignition, or detonation, its going to break dowels studs or not
if you have some kind of cross triggering of the ignition, or detonation, its going to break dowels studs or not
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