I'm building a new a14 for my race car does anyone have any hp figures for this engine.
specs for new engine
lightened a14 crank a12a rods 13.5-1 pistons in a12 block due to being lighter, fully ported a12 gx head with 40mm intakes, 33mm exhaust 7mm stems (custom made)cam has 310 Duration (custom grind to match head flow figures)duel mikuni's (will be coverting to indivual throttle bodies)rpm range 5500 t0 8500

150hp at the wheels maybe.
sounds pretty trick

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No way.

I'm hopping to see 160 at the crank, my a12 was around 135 I know of a road racer that was getting 168 from his a13 but my engine will not be as high dollar as his

Bob,
To give you a line up I have what I would describe as a very strong 'rally' type engine that works from 3-7500rpm. It has a good head that has been ported for a compromise between velocity and maximum flow,10.25/1c/r, a very nice cam that has been properly degeed in, twin 40'sidedraughts, headers etc, however other than a lightened flywheel a standard bottom end.
It was dyno'ed late last year @ 78.1kw@ 7000rpm which I believe equates to 107 hp at the rears.
This was very much a 'dip the toe in the water' preliminary run and highlighted some issues that needed to be addressed ( air box, ignition miss etc) and I would be hopeful of 112-115hp @ 7500rpm on the same dyno the next time I run it.
I would have to say that 150 hp at the rears would seem one hell of a long way off.....
Let us know how it goes.
Cheers
Dave

I reckon 100 hp at the wheels at most