>>> Hey all,
>>
>> I'm sorry if this has been gone over before, but I was
>> wondering for someone who a stock engine what are the
>> most effecient engine mods and the HP gains
>> associated.
>>
>> I was thinking about a Kerker 4-2-1 with a stage 7.
>> What HP gains should I expect?
>>
>> What other mods could I do and what benefits are
>> there.
>>
>> Thanks
>> Drew
Drew and Tech List, I've got to jump in here. After 4 years on the list(s)
I've read a lot about MORE POWER. Everything from shimming carb needles to
1500cc engines with a blower. Having spent a lot of my youth learning the
drag racing game, I learned the first thing you do to any serious engine is
Blueprint and Balance. I think I read a couple years back a post from
(maybe) Steve Jassey about the tolerances on the Max engine. If your going
to build it right, you need to optimize every engine spec you can. Boring
the cylinders so they are all parallel and at 70� to each other, line
boring for the crank so it's perpendicular to the rods. CCing the heads so
all the combustion chambers are the same volume (so the compresion is the
same in each cyl.) Sizing all the bearings so they are at the best
tolerance and are consistant from bearing to bearing. Using a dial
indicator and degree wheel to set the timing instead of hoping the factory
was "on" that day. In my experience, in wasn't un-usual to see a gain of up
to 50 h.p. (on a small block chevy, for instance) just by B & B-ing it.
THEN, when you start bolting on the big carbs, headers, cams, etc. you
REALLY see the difference. Speed is a lot about consistancy, consistancy is
about reducing variability, reduce the variables (tolerances) in a given
powerplant and you automatically will be more consistant and speed will
happen. OK, said my piece, got my fire suit on, let 'er rip. Tom Morgan, #259
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