I think both have their benefits. Once I get the Intake manifold off this car I will have a better idea. I need to know if we can fit a after cooler below the roots style blower. If we can I think that is a better option. If we can't we will have to either spray methanol to cool the intake charge or go with a centrifugal with a front mount intercooler.Andy,
I sorta understand supercharger basics, including the pros and cons of each type. I was wondering which type of supercharger you think would work best on the ISF. I see that so far, I am the only one who has voted for a centrifugal style supercharger. I thought it is easier to install and maintain over a roots or screw type. I was also under the impression that a centrifugal supercharger has better gains on the top end, which I thought would be well suited for our engine. Of course, a centrifugal supercharger wouldn't have as much low end grunt as a roots or screw type, but I'm not sure how much more low end we really need...we already have enough problems hooking up as is.
Anyway, just wanted to know your thoughts on each. Thanks in advance.
I sent you a pm. You are welcome to call me at the shop anytime before 930pm CSTAndy you need to contact me with all your brainstorming. (Bc i have a supercharger sitting in my garage) have already made contact with a certain (#1) manifold maker for NHRA cars (custom stuff and its only a three week turn around).
Well put!!!positive displacement all the way. it offers better throttle response, more consistent boost, and better low end torque....which is what the ISF needs more of to get off the line. a roots/twin screw will be able to produce boost right off of idle. centrifugal superchargers act too much like a turbo, there is lag and they dont produce the same consistent pressure that a positive displacement can because they cant deliver a consistent volume of air at all engine speeds.
if you want neck snapping performance, then a roots/twin screw is the way to go. plus the whine sounds very appetizing.
and besides.....a centrifugal needs to be mounted somewhere in the engine bay....and that takes space we likely do not have. a twin screw sits atop the intake manifold.