the starter turns the motor the way it's intended to run. for counter rotating engines say in a boat, you need one CW starter and one CCW starter. If you ever shutdown or lose ignition on a marine engine under load, chances are it will diesel (run on) and actually runs backwards. This can...
check it:
http://mr2.com/TEXT/SuperChargerInfo.html
looks like toyota is no stranger to SC clutches and bypass valves. Even though some may think the setup stucks, it has a lot of merit considering it was done at the OEM level in 87-89! infact, it's described to be similar to, if not...
no agruement that setup will work and has been done before, but it suffers from the same fundimental problems where all intake air passes thru both chargers. this means compressing and/or displacing air twice throughout the entire RPM band. needless to say, heatons are best for their...
one more quicky -
why disengage the charger under light load/low RPM? I would want it spinning and ready to boost. it would be recirculating because of the diverter. once the TB is open for accelleration to the point where there is no vac, the diverter/bov closes, the charger is already...
Holy defensive.. the system you just described is common, and proven, however I'm trying to discuss alternatives to it. On the table here is basically replicating the VW TSI design, which is in production, so spare me the over-complication nonsense.
first of all, TB positioning is getting...
so it looks like switching off the SC is a delicate task. so yes, any pressure between the SC and turbo must be bled off before disengaging to 1) prevent it from spinning backwards and 2) enable a smooth disengagement. this could be done by opening the SC bypass before the SC is disengaged...
yes. it's wise to have a kill switch (coil or fuel) within reach so you don't chance losing steering if she's bouncing off over redline. anyone ever have their gas pedal catch on the floormat?
A throttle body in front of a twin screw type charger is not such a bad thing. These chargers...
