DIY_EFI Digest V3 #365

[Jake Sternberg]

> Just for grins, has any other people around here bye chance figured
> out a good cheap way of coming up with a reasonable priced way of
> coming up with a non-centrifugal blower???

take a turbo from a mack truck (they give them away at some truck repair
shops and junkyards) which is toasted.. or good. sometimes the only
problem is the exhaust housing is cracked, which is OK. remove the exhaust
housing and cut the exhaust turbine down into a cylinder shape of a small
diameter using a die grinder and bench grinder; but dont grind all the way
into the "hub" just cut away all the fins, leaving a smooth surface where
the fins protruded (the turbine is iron). using quality bearings like
those found in a skateboard (or those found in a skateboard) support the
nub on its end. you'll have to build a stout bracket for this. basically,
you want to make the exhaust side of the turbo look like the business end
of an OEM starter, that is with the "gear" supported from both ends.
using a drill (to spin the impeller) and a die grinder and steady hand (to
cut grooves) cut grooves into the turbine nub to match serpentine belts.
not the toothed kind mind you, the multi-V groove used to drive
accessories. these are flat on one side and have grooves running the
length of the belt on the other. 

mount the assembly on your engine and connect a belt to it. carry spares.

-jake