Hi
I just bought a new paxton SN2000 supercharger. for my 1993 z28 ( speed density ) Comes with msd timing retard modual and paxtimap programable fuel management systemI know the reputation of these things but I could not refuse the price.
The instructions on my kit ask me to install the supercharger crank pully on to the stock harmonic balancer. I have an under pully on there now 9 much smaller ) Can i leave this on there. Will this increase boost having the smaller pully. I dont want to hurt my motor. The unit I have produces 6-7 psi and i think 6psi is what is recomended
I also have a hypertech chip stage 2 I think with the lower temp thermostate. Will I have to change this back to stock. Id liek to keep them both but my main concern is over boost/detonation a lean or rich condition etc. If i use high octane boost and keep the temps low how much retard will I have to run and will i always be adjusting it with giiven weather conditions. I really have so many questions but I figure ill start here and ask more as i go along the way. I upgraded the rear end with 3.73s they are great ( only problem a small vibration on deacceleration at like a 110 that i did not have beore with the 3.23s ) maybe driveshaft or lash adjustment needed. Any ideas on this ?
I am new to this game and I know this is gonna be a challenge. Anyone who can help me along the way Ill be greatlly appreciative.

Mike N
Long Island

 

Definetly scrap the chip. They will advance timing which will cause detonation which is BAD. Keep the 160 thermostat. Get a new chip for blower cars and 160 thermo so your fans don't run all the time. Vibration could be either . Probably driveshaft vibration. Very common on 4th gens.