Hey davo- james I think he uses the rods out of a A10 to get the piston hight
right :) A lot of the rally guys are doing this as they have to use a A12 block
to keep within the rules for there class.
Andrew.
Davidson wrote:
> Wouldnt you have to shave the A12 pistons 3.5mm if you were to fit an A14
> crankshaft?? As there is a 7mm difference in stroke. Makes me wonder if
> the A12 with A14 crank would rev harder due to the con rod length difference
> over the A14/15. Now that i think a bit harder the block height difference
> doesnt really matter too much if you have a shorter con rod, therefore still
> giving a similar capacity as the A14/15 bored out(if u can safely bore them
> to 240-260thou!!) , and posibly a few more rpm??
>
> James, my A14 head is around at Jeffs atm and only met him last week. He
> seems like a very nice bloke and knows exactly what he's doing when it comes
> to the A series. I wouldnt have taken it anywhere else as he built the
> engine for Andrew a couple of years back!!! cya's
>
> Scott
> Davo
>
> -----Original Message-----
> From: Andrew Denniss <[EMAIL PROTECTED]>
> To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
> Date: Friday, 19 January, 2001 19:20
> Subject: Re: A12
>
> >Hey James My engine builder-Fixer can fix this problem for you he strokes
> the A12
> >with a A14 crank and bored to get nearly 1500cc if you want to spend the
> money its
> >possible to get 150+hp from this :) Give jeff a ring JTS 02-96238826 he is
> a good
> >bloke and can probably do one too a budget.
> >Cheers Andrew
> >
> >James & Chirryl wrote:
> >
> >> The reason for using the A12 block is to avoid getting an engineers
> >> certificate, since the engine is to replace an A10 (988cc). Though now it
> >> seems a better idea to do it properly, and get some disk brakes, an
> >> engineers certificate and use an A14/15.
> >>
> >> > I dont know the exact figure but i know the A14/15 can be bored max
> 140thou.
> >> > The bore on the A12 is 73mm and A14/15 76mm. So theres allready approx
> >> > 120thou difference between blocks. So as a guess, around 200 thou???
> Maybe
> >> > more? But i see no point boring a A12 block as the deck height is 15mm
> >> > shorter than the A14/15 giving a lower overall capacity. Maybe someone
> else
> >> > has an exact figure...
> >> >
> >> > Scott
> >> > Davo
> >> >
> >> > -----Original Message-----
> >> > From: James & Chirryl <[EMAIL PROTECTED]>
> >> > To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
> >> > Date: Thursday, 18 January, 2001 15:42
> >> > Subject: Re: Drag racing pics
> >> >
> >> >
> >> >>
> >> >> gday list,
> >> >> Does anyone know how far an A12 block can be safely bored out to?
> there
> >> >> seems to be a fair bit of meat between the cylinders . But I don't
> think
> >> > it
> >> >> would have been done before, as most poeple use an A14\15 block as a
> >> >> starting point.
> >> >>
> >> >> thanks,
> >> >>
> >> >> James.
> >> >>
> >> >
> >>
> >
>
--membersozdat-------------------------------------------------------
OZDAT Mailing List Please Note:-
Send (un)subscribe requests to [EMAIL PROTECTED]
Send submissions to [EMAIL PROTECTED]
No unauthorised redistribution of this email
http://www.ozdat.com/ozdatonline/index.htm
http://www.ozdat.com/ozdatonline/listindex.html
http://www.mail-archive.com/[email protected]/
---------------------------------------------------------------------
