five0fm

i just finished putting back on my sn-93 supercharger. i took it for a test drive and at about 5200 rpms it starts to buck like it has power then no power then has power. ive ran it before no problem. only new things are a deleted smog pump....could it be a slipping belt?

mjr46

how many psi of boost??? fuel system adequate?? maf correct type for a supercharged application??

five0fm

6lbs...stock everything..its ment to run on a stock engine..ive had it on there for about a year and it ran awesome then took it off for a few months. now this

mjr46

how are the plugs and wires?? why removal in the first place???

five0fm

i changed the head gaskets and just never put it back on...the plugs and wires were alright as of yesturday

bighungrymatt

maybe get a dyno tune?

primetime5.0

did you read that part? bighungrymatt

PRO50SC

What rpm did you used to run it up to before? You had the heads off, did you do anything to them? Valve float possibly.

five0fm

sry guys i was away all weekend at the coast guard station. nyway i had the heads off and everything looked fine..car ran perfect before the supercharger was put on. i usually spun it all the way to redline and no problems. without the supercharger to about 5200 rpms. the weird thing is there is no hesitation, sputtering misfireing or anything up until about 5000 rpms.

PJC Racing

Stock springs.... could be valve float.