TOY: Re: Turbo?

[bwiencek@xxxxxxxxx]

> I have a line on a rebuildable Turbo motor with ECU and wiring harness for
> $500.
> 
> Can these be tweaked for acceptable low-end? I do a lot of mud, so the rev
> power would be nice, I'm just a little worried about losing low-end.
> 
> Are turbos more susceptible to water and mud damage?

Does the engine run right now?  If not what's wrong with it?  Personally $500 
for a rebuildable unit that doesn't run at all is a little steep IMHO...  I'd 
do it in 2 steps if it runs at all - swap the wiring and 'stuff' over and get 
it running first then rebuild it.

Check the intake plumbing for oil coating (indicating bad turbo seals - semi 
expensive on the toyota CT style turbos.  I would say that the only 
real 'threat' to a turb on water/mud is dunking a cherry hot exhaust casing in 
ice cold water (i.e. running hard on boost then dipping it into the cold water, 
but the 'threat' should be only a little more concern than a regular exhaust 
manifold....

As for low-end grunt out of one - that's simple - you either need more static 
compression or get the boost on at a lower RPM - the first is easy - run the 
N/A ~9:1 compression parts on the engine and the next is a little harder - free 
up the exhaust to allow quicker spooling, and run a GOOD cam... Then it's time 
to think about a modified T3 setup - could set it up and have boost around 1100 
RPM if you want (but usually that limits top end and/or spins the turbo awful 
fast up there)

-
Brian