TPI Questions

[Gregory Chan]

I was under the impression that EGR was to clean up emissions by 
recirculating exhaust gas. I read that a performance mod was to 
disable the EGR valve with big cams.

gchan at compserv.senecac.on.ca
> 
> 
> I was hoping someone would jump in here.
> 
> Do you have any evidence of the engine knocking without EGR?
> 
> I have the same question - do I want it or not?  I'm also not concern with
> economy, only power.
> 
> 
> 
> 
> 
> >I'm lost, for a performance engine, do you want egr or not ?  When I built
> my tpi 350, I pulled the egr valve and stuck >a blanking plate over the
> hole instead, oh, I also put the little metal plates in the manifold
> gaskets where the egr is >meant to breathe through.  Was this a mistake (I
> don't care about economy, only power)?>>
> >
> >
> >Dan     dzorde at geocities.com
> >
> >
> >The EGR valve is still present and connected, but doesn't actually do
> >anything since there isn't a supply of exhaust gas to the valve.
> >
> >Grounding the EGR feedback wire will set off the SES light (it simulates
> >the EGR being stuck in the open position)
> >
> >Leaving it disconnected will also occasionally set off the SES light
> (there >are a few cases where the ECM will command the EGR to actuate, then
> look to >see what happened.)  Fortunately, temps down here are high enough
> that this >doesn't happen often.  (been about 4 months since the last time
> the code >went off) It will also clear itself within a few minutes of
> driving.
> >
> >Someday I'll have an EGR flange welded to one of the exhaust headers to
> >supply external EGR.. but it's a low priority.
> 
> 
> 
>