had a few quiet days in the bodyshop so got busy at this, got the pistons all de-carboned today and crank professionally polished since the pic,,
ma12ert rebuild
- Thread starter martycturbo!
- Start date
OP
OP
using the ma09 head,, this will lower the comp because combustion chambers are larger,
OP
OP
its an ma12 block with bits welded on to hold the s/c, kind of an experiment but as most of the ma bits are compatible its worth a try, im going against every thing i believe in for more power, as the yanks say theres no substitute for cubic inches (mm and cm in this case:laugh::laugh
frank
Club Member
it,ll give you a C/R of about 8.5:1 will it marty ?
absolutely agree.....and I love how you think do you have a detailed thread somewhere, I was seriously considering the same with a ma10 block but good, forged bottom ends are just too hard to get in Oz (no ma anythings were sold here).
For racing use I need to keep capacity under 2.0l, and there is a 1.7 multiper for turbo or supercharged....which means up to 1.17l would be fine for me.
In the end I decided to stick with "original" because race is not it's only use.
do you have a detailed thread somewhere, I was seriously considering the same with a ma10 block but good, forged bottom ends are just too hard to get in Oz (no ma anythings were sold here). For racing use I need to keep capacity under 2.0l, and there is a 1.7 multiper for turbo or supercharged....which means up to 1.17l would be fine for me.
In the end I decided to stick with "original" because race is not it's only use.
OP
OP
havent got a clue,, ha ha, im not mathematically sane so wouldnt know how to come up with that
frank
Club Member
its only a guesstimate :grinning: but it sounds like a good plan to me, and i think you will have a lot more grunt
OP
OP
plenty ma,s over in ireland so have a few guinea pigs to work with,, thanks all for the positive comments(Y)
imp124
Buy & Sell Member
as the yanks say theres no substitute for cubic inches (mm and cm in this case:laugh::laugh
Theres no replacement for displacement
porkpie700
Buy & Sell Member
That thing is going to be torquey as ####!!! You should have around 125bhp with that, i think the ma09 is 110 so you're 15 up, but the foot-pounds will be a fair way up from that. Best weld some castors onto the floor pan for when it rips your ####ing front end off lol
(Y)
(Y)
Baz
Ex. Club Member
Sure there nearly 150 in my st fwn with no problems to the chassis
A 1.2 sould get more power than 125hp I reckon
Baz
Ex. Club Member
I know marty well and I reckon he is, watch out for sludge Marty, its a killer
OP
OP
well for running it in ill be using ma09 injectors so not really sure what kinda power figure il be making, an the cylinder walls are a bit thinner than ma09 i wont be running any mad boost,, even with the metal headgasket, 1.0---1.2 bar with the right fueling should be plenty,
putting it all together today!!!:laugh:
putting it all together today!!!:laugh:
porkpie700
Buy & Sell Member
It shouldn't need too much boost i don't think, just being a longer stroke engine will give plenty of natural grunt. Even on stock st setup it should be at least equal, the mixture will probably be the most fiddly bit, but then it's all electronic so ...
OP
OP
are u offering?? ha ha, ill need it alright. am i going to need a piggyback( e-manage or something) or can you do some trickerry with the stock ecu?
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