Quote:
Originally Posted by englishmike
Supercharger questions
Being a new mr2 sc owner I have a few questions re the supercharger.
1. My mr2 has the bypass valve blocked, I believe this is due to sustain a higher boost level. Howcome there is a bypass valve fitted at the toyota factory in the first place?
well, the SC is clutch driven. your engine acts like an NA unless under boost, so it's not constantly under boost, the engine still needs air
2. How do I know if my supercharger has an upgraded pulley fitted?
have you installed a boost gauge?
3. What companies sell uprated supercharger pulleys and a matching belt?
NST still makes one (i believe) and others like Diaboliqe, Boost Junkies, HKS, Cusco, and Blitz will appear for sale in used ads from time to time
4. My supercharger dashboard light is coming on whenever I press on the gas pedalthis is a factory deal. . Someone has retrofitted a switch under the dash that is supposed to make the supercharger active all the time or just run at over 4000rpm. Has anyone heard of this? i've heard of some doing this as a defeat or as a way to keep the clutch engagedWhen I flick the switch either way, nothing seems to happen to the way the car drives. I can hear the SC at over 4000k under hard acceleration.
Is the purpose of the switch to disengage the electromagnetic clutch on the supercharger input shaft?
How can I remove this mod and how can I get the SC light to come on correctly? Could the light have anything to do with the throttle sensor?
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i would seriously recommend buying a BGB as it seems many of your questions can be answered by a little bit of research (which means utilizing search functions and google searching along with going through the service manual).