Everyone always talks about using a larger blower. What about a smaller one? When I SC my car eventually, I won't be going above the boost that comes with the kit (5-6 psi). If the Novi 1000 maxes out at 15 psi, is there a smaller, less parasitic blower that maxes out at say 7 or 8 psi? It seems to me that the Comptech and Vortech kits were designed to be upgraded. Perhaps a smaller blower would yield the same results with less weight, less parasitic losses, and more efficiency?

From an engineering standpoint, this would make sense. I recall a past discussion about engine efficiency (in terms of power potential and production). A Corvette and an S2000 traveling side by side at 60 mph in top gear. Obvious engine speed differences, but both engines producing the same amount of power to maintain the velocity. The smaller engine is being far more efficient from a thermodynamic perspective (not necessarily fuel consumption) due to it's current output and max output. (If both cars were geared in a way that the power they produce at X rpm was the same percentage of their maximum potential power output, and both cars were operating at their respective X rpm, the fuel economy would DRAMATICALLY favor the S2000). In fact, a much smaller engine (below 0.5 L) could produce the same horsepower and still maintain the 60 mph.

While the above cannot be directly applied to the supercharger comparison, I think the Novi 1000 may be overkill for an application of 5 psi. A smaller blower working harder (relative to it's maximum output) may be a better fit and could produce the same gains with less engine requirements.

Anyone out there an FI engineer or work in FI R&D?

 

The Novi 1000 maxes out at 14psi but it's efficient envelope is much lower. A smaller blower would not be suitable for the S.

 

vortech makes smaller blowers