if you want the max amount of HP you can get, go with a turbo.
a turbo has a lag period and a SC does not.
if you want to know everything about FI go to www.probetalk.com and read anything in the FI forum.
go there and read anyhting from ASword(Turbo), BigProbe(turbo), Rayman, FRCFD6, pgtfreak_22, Rick_96PGT, Bryan, ShogunProbePGT(he has a SC).
those guys know what they are talking about so read them and then if you dont find enough there go here::
basically you will lose big in the milage and reliablity department. I hear that superchargers require less maintenence then turbos. A turbo will give you great high end power, and a supercharger will give you better low end torque. if you go with either you will probably either have to get lower compression pistons or run a really low boost. a higher volume/flow oil pump is a good idea and some sort of copper/solid metal headgasket will help. either option is very expensive, so make your decision wisely.
The biggest disadvantage is the cost. It ideally involves a complete engine and tranny build up. You name it it's got to be upgraded. Many people chose the most economical way of adding a turbo by only getting the bare necesities such as upgraded cooling system, etc., but soon after they complain about oil burning and all kinds of serious problems. Check out Knightsturbo.com they sell the kit for the mx6.
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