that is another issue...generally a centrufigal charger is going to run upwards of $2000, whereas a t25 you could find in a junyard for $50 and rebuild it for $200 or less, or the cheapest alternative yet...keep your turbo and rebuild your motor for better compression

 

I am doing the rebuild and will end up with the cr around 9.5:1.

 

if you don't like lag, spray it.. i do

 

in my car I need room for a bottle......a baby bottle that is, I've got full audio system and the only place left for spray is on the rear floor board. but I need that for passengers.

 

make room

 

ok, i think we need to clarify what exactly "gauged boost" is. a T25 can achieve 20psi..just depends how restrictive the intake system is. for example, say kender was to put the vortech on his car with stock exhaust all the way back. at 5000rpm, with the same pulley combo, the blower will ALWAYS spin X rpm, and also flow X amount of air. this is the constant and lets say this makes 10psi. take that exhaust manifold off for a high flowing aftermarket one, port the head, and now you may only see 5psi at 5000rpm. you are still flowing the same amount of air, the blower is still turning the same rpm...but your engine has become more efficient and free flowing.

also, a vortech is basically never ending boost lag. if you want instantaneous boost, go with a roots blower. but both of these cause paracitic power loss due to extra rotational mass.

my final say is, go turbo...in a race, your most likely not going to be under 5000rpm, so lag isnt really an issue with a properly sized turbo(sizing can vary greatly, it all depends on cam selection, displacement, and the basic efficiency of the motor, just cause its 1.6L doesnt mean it is a bad idea to use a large turbo. its only a bad idea if the engine will not support it) other reason being is a turbo is IMO more efficient, as your not worried about aligning pullies, possibly crank vibrations causing premature wear, belt slippage, etc.

 

pretty much sneakin put it more the way I was trying to, yes a t25 can make 20psi....but its just blowing hot air at that point, btw I was wrong, k cars have to4e turbos for the automatics....not yet sure what the 5 speeds use...but they are much less common I think they may be t25s or t3s