TPI Questions

[dzorde]

Sorry I'm a bit late replying to this mail, but here goes.  Yes it pings
without egr, mind you I have never tried it with egr so I can't compare.  I
left egr off for the reason of getting max power, to combat the pinging I
have to run no more than 4deg advance and avgas.  But I'm happy now.  All I
need now are some rear tyres with grip.

Dan     dzorde$geocities.com

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>I was hoping someone would jump in here.
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>Do you have any evidence of the engine knocking without EGR?
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>I have the same question - do I want it or not?  I'm also not concern with
>economy, only power.
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>>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)?>>
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>>Dan     dzorde at geocities.com
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>>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.
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>>Grounding the EGR feedback wire will set off the SES light (it simulates
>>the EGR being stuck in the open position)
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>>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.
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>>Someday I'll have an EGR flange welded to one of the exhaust headers to
>>supply external EGR.. but it's a low priority.
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