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Mazda Engine General \  what will it do

what will it do

Mazda Engine General Mazda Engine Mazda Tech
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throwinsparksnla   +1y
last week, i took my truck to get the engine rebuilt. i find out i have 2 broken motor mounts. i never knew cause i guess i ride so bumpy. anyway, thas not wut this is about. they guy calls me up thursday and tell me its gonna be a tad bit longer before i get my truck back because instead of having to bore it out 20, he had to bore it out 40. is this gonna be any better, like more horsepower. i hear of guys boring out thier engines all the time to make it bigger. i hope this will give me more hp, plus ill be the only one around here(where i live) with my engine like bored out so much. well not the only one but the only one with a mazda b22
f n lo   +1y
thats weird, why couldnt he just do 20?? im wondering if 40 over pistoms cost more??
throwinsparksnla   +1y
the reason he couldnt do 20 is because the block was scratched seriously bad
f n lo   +1y
icic, wel dont ask me why, but my buddy got his engine in his CRX rebuilt, and once it was bored out it actually reduced the speed of the lil car....does anyboyd noe why it would do this or how it could be foxed...butyea thats my experiance on big boreing....
nytrdr24   +1y


BECAUSE YOUR MOVING A LARGER PISTON, AND SUPPLYING THE SAME AMOUNT OF FUEL, AIR & SPARK, SORTA LIKE A PERSON TRYING TO LIFT 100 LBS, THEN THE SAME PERSON TRYING TO LIFT 150 LBS (GO FASTER). NOW IF YOU WERE TO ADD FUEL, AIR & SPARK (STEROIDS), YOU COULD EASILY LIFT MORE WEIGHT (GO FASTER).
nytrdr24   +1y


THE STOCK BORE IS 86 MM, 133 CU INCHES=2184 CC, 0.020" OVER WOULD BE 86.508 MM, AND 0.040" OVER WOULD BE 87.016 MM. I HAD MINE BORED + 1MM TO 87MM WHICH BRINGS IT TO 136 CU IN = 2228 CC. IT WILL GIVE YOU MORE TORQUE, AND A LITTLE MORE HP, BUT DON'T EXPECT TO HAVE ANY MAJOR GAINES, UNLESS YOU CHANGE THE COMPRESSION RATIO, WHICH YOU CAN DO BY GETTING CUSTOM PISTONS, OR SHAVING THE HEAD SOME. WHILE ITS TORN APART, YOU OUGHT TO GET A CAM AND PUT IN IT, AND MAYBE SOME BIGGER VALVES, IF NOTHING ELSE PUT NEW VALVE GUIDES, SPRINGS & SEALS IN THE HEAD.
f n lo   +1y
so what should we do to his crx to help it perform??
bigroy_80   +1y


bigger injectors, higher flowing fuel pump, better spark plugs, better grounds and such, intake, etc, etc
throwinsparksnla   +1y
o ok..i wasnt expecting any big gains, i was just wondering what it would do. any gain at all is better than none plus im about to put a different intake on it and once i get the engine broken in again, ill start runnin royal purple, so ill get a lil more there. anyway thanks for the help guys
f n lo   +1y
lol a bigger more means less money in your pocket due to gas!!lol