Tim, the crank connects to the cam via (as you know) a single-row timing
chain. This chain comes under more stress from SC/n2o because these power
adders make the motor spin up faster. As you recall from your physics
classes, accellerating a mass more quickly takes more force (SC, n2o, etc)
and since the cam spins via a timing chain, this chain must transmit the
amplified force.
Sure the stock timing chain *may* last 2 runs, it may last 20 years. Like
Bernd said it's your money and your motor.... Why spend $2500 on a SC and
not spend another couple hunnerd to beef up other weak points in the motor?
_________________________
Jon Smith--Raleigh, NC
95 318 4x4 CC auto
www4.ncsu.edu/~jdsmith4
fast4x4@bellsouth.net
ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ
> Call me stupid... I still dont see it...
> lemme try to explain how I see this boost affecting the timing stuff
> The pistons are pushed harder under boost, whereas the valves are not...
> the pistons which under more of a load are connected to the crank, which
> spins, at the spinning point, there is no difference, just in the
conversion
> of up and down motion to rotational motion... (it takes power to drive the
> camshaft, not gives power), the only difference in adding boost to the
> engine will be the crank, and other compression areas and intake...
> Maybe a picture will help me... but I've never heard of any type of turbo
or
> SCer needing any type of beefed up timing chain or anything.. and I know a
> guy who runs 13.5@104 in his shadow, completely stock motor, just turned
the
> boost up.... and its over 10 yrs old...
> _______________________________________________________
> Tim Berry -- Chesapeake, VA
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