Doing it right the first time tends to be less expensive and more rewarding than continually fixing, refixing, replacing parts and troubleshooting and retuning to distraction. I love these cars but not enough to spend 4+ hours per evening underneath them.Murfinator is right. On the other side of the scale, a full build project gets really big if you are trying to do everything right the first time. The cost of a "perfect" build expressed in terms of cost of a "good enough" one is an exponential function. Using Murf's cost estimates: a proper build costs $21/hp (assuming a staggering 700 hp is achieved), whereas the "good enough" M106 is only $9/hp, at stock levels. Ironically, they both will have about the same durability, but my guess would be that you could still drive the M106 in traffic, and you could trust the wife, g/f, or grandmom to drive the M106. Maybe not so with Murf's.
"Good enough" never is. "If there's a job worth doing, it's worth doing right." Granted, doing it right is expensive and time consuming but can you afford to do it wrong or 'good enough' repeatedly? I don't have the time or patience.
Tractability was a significant design concern. Primarily this involved clutch selection with the search ending at the SPEC stage 3+ which purportedly will hold the power without breaking your neck. The car originally was equipped with the 4HP22-EH autotragic. Due to it not being a DD it likely won't see much if any traffic (weekend driving and track days) and my wife won't drive it and my grandmother's have passed.
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Disapppointment. Best of luck with your build.
