cb john wrote:Most of you will argue, but we are getting 67 Hp at the Rear Wheels out of stock standard 1600...no fancy cams and super heads and other goodies...just well and I mean WELL selected stock parts and very careful assembly...and that is with 34 PICT 3 and 29 mm restrictor....
A formula Vee engine is NOT a stock standard engine,
and should not be used a guideline (or comparison) for a reliable street engine.
Other than exhaust and camshaft being non standrd,
the valvetrain geopmetry that is used to acheive extra lift is very hard on the valve train in the wear area.
But yes, with the right cylinder head part number,
and carefull assembly, I dont doubt those number at all.
I would say that 67hp is a reasonable number to acheive with a stock non ported,(but quality valve job) head in the right circumstances.
Higher numbers are possible with better intake system,(ie more flow) and optimised cam profile.
Better carb and manifold can make stock head flow more.
If you are ONLY after a HP number,
high compression and large cam will move that number up quite easily (within reason),
but the larger duration can make the engine run poorly at low rpm, and be very fuel-inefficient at low rpm.(worse than stock)....especialy with a shared venturi like the Kads.
But anything can be made to work.
Like any engine,
a combination of parts needs to match your goal.
My personal choice with any cylinder head you choose, would be some basic head and chamber work,
since most large valve heads with no hand work can flow less air than stock valves due to the shrouding of the valve in the chamber.
Even stock heads can benefit from a bit of time in those areas.
There are so many ways to acheive your particular goal,
but CB John is correct,
Carefull assembly with attention to detail will be the key to assembling what ever parts you choose.
Talk to your engine builder and machinist about what characteristics YOU want,
and not what people tell you that you need to win a dyno contest.
oh yeah...here you go...
http://www.alamomotorsports.com/webcam/vw.html
westi wrote:That's mad Alan.