[Spridgets] A series crankshafts
dmeadow at juno.com
Wed Dec 10 10:45:58 MST 2008
If you're sticking with the stock head (no porting, etc.) and valves,
increasing air and fuel flow will only help to a point. Bolting on
headers, an intake manifold and a HI6 carb would give you some additional
horsepower, but to really get anywhere you're going to have to change out
I used to use the Kent 286 cam when I raced Spec-Sprite. Except for
headers, straight through exhaust, and K&N filters on the 1.25" carbs and
a Pertronix ignition it was basically a stock engine with balanced
internals. I used the stock high-compression pistons. Of course, the
car was lightened considerably over the street setup. I got literally
years of racing fun out of this motor and I was even able to play in the
top third of the (non Spec-Sprite) pack where there were people that
spent at least twice as much on performance goodies.
The 286 was a bit lumpy at idle, but not annoyingly so. It also had a
good power band without revving the hell out of the engine. I'd
recommend it for street performance use. I'd try it with headers and
your stock carbs before I spent a bunch of money on an intake manifold
and carb setup.
On Wed, 10 Dec 2008 12:22:35 -0500 Michael Rowe <mdrowe at optonline.net>
> > I agree with the others. For the amount of power you are looking
> > you NEED to talk to one or all of the names the others have given
> OK. There is no question about this for extreme upgrades. But what
> if you
> don't want an extreme racing engine, just a really good street
> engine -
> plenty of power, smooth-running, durable, etc. Vizard is very
> clear about
> balancing components, but there is so much information that it is
> hard to
> sort out intermediate levels of build. On scanning, other books are
> similar, although not as detailed.
> How about it racers? Is there a cookbook for building a level 3
> engine (out
> of 6) with mostly bolt-on components?
> How about a list of parts:
> 1. HIF6 carb with K&N filters.
> 2. Titan intake manifold.
> 3. Etc.
> Michael Rowe
> '74 Midget
> Long Island, NY
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