CPOCSM wrote:
Sorry Simon - FI numpty here. I just ask as there are wires coming off the blower just the same as a aircon clutching system and have heard of people putting on a different pulley without the clutching bit.
Advice is welcome...
Hooroo
There are wires coming off the clutch exactly like an AC compressor, I have mine getting power from the switched 12v fuse. Mustn't draw a lot of current because it never blew the fuse... When I originally installed it, I thought about a relay, then decided not to bother unless it became an issue - it's been 18 months
The only issue people have is that the engine can conk out when you pull up at the traffic lights (particularly if the idle is low). I never bothered as I didn't have the problem with my carb, but gr4h4m added a valve to add a little blower bypass. It links the "hot side" and "cold side" of the blower, allowing a bit of boost pressure to escape back to the intake.
gr4h4m wrote:
I use a lpg petrol valve ... to re-circulate the boost on over run so that it doesnt over fuel and stall when you come to a stop.. works great.
Switching the valve on & off is simple with megajolt ignition, or a $25 frequency switch kit from jaycar, but like I said, wasn't an issue for me, mightn't be for others either.
The setup on the Toyota is the same as what gr4h4m made, except they have a valve like a 1" carb butterfly that opens when the blower clutch is switched off.
The blower spins very easily, if the clutch is off, the vanes turn by the vacuum of the engine, which is why they only use a small bypass.
There are some good bits of info in this thread:
http://www.ausmini.com/forums/viewtopic.php?t=69229