Boost/Injectors...was "MAF..."

d houlton x0710 tc75918 at hpra5.msc.az.boeing.com
Fri Feb 26 16:33:48 GMT 1999


ECMnut at aol.com wrote:
> 
> To lower your boost, you may want to modify the wastegate rod
> if it doesn't already have a threaded clevis thingy on it.

Ahh yes.  That would do it too, but it doesn't use a threaded clevis
so it's not adjustable.  I like the idea though.  Much cleaner and more
reliable than a spring.  Cheap too.  Boost seems to be limited to about
8 psi right now if I really floor it for more than a couple seconds
which doesn't seem too much.  If I can't get the fueling worked out and
do want to reduce boost, I'll keep this in mind.


>  If it has one already, turn it so it lengthens the rod a little
> and go for a thunder-run to see how much it lowered the 
> boost..  Also, the source for your boost signal can play a 
>  part in the resulting boost numbers.  If the "signal" line
> is plumbed to the intake manifold, the engine is likely to

It's an internal wastegate and I don't have an adjustable boost controller
of any kind so the signal line is a short 3" piece of 1/4" hose from the
output of the compressor scrollhousing to the actuator.  Not much of a
restriction there I think.


--Dan



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