<VV> CHT Re: valve seats and "Ping"

[jvhroberts at aol.com]

 1. There are PLENTY of signs beyond the CHT reading that'll tell you you're running too hot. 
2. I've never let a harmonic balancer get that bad. I also never let carbs get that bad. 
3. I saw that on the cover of DUH! Magazine. 
4. Yes, it works, but why add water to an air cooled engine? If you're going to do that, add a water cooled engine with a radiator! Adding a bigger tank? Hardly solves the problem of using such a bizarre consumable on an air cooled engine. Besides, who's talking stock? And air to air intercoolers don't need water, and air to water intercoolers don't consume their coolant. Now, what was your point again? 
5. Why add water to an NA engine, when good tuning makes this unnecessary?
6. And there's more than one way to skin a cat. And last time I checked, his Bonneville racer wasn't exactly a daily driver! 

So, what's your point again?

 

John Roberts
 

 

-----Original Message-----
From: FrankCB <FrankCB at aol.com>
To: jvhroberts <jvhroberts at aol.com>; patiomatt <patiomatt at aol.com>; virtualvairs <virtualvairs at corvair.org>
Sent: Sat, May 19, 2012 2:46 pm
Subject: Re: <VV> CHT Re:  valve seats and "Ping"


1.  I guess I'll have to explain it in simpler terms.  Once the needle on the CHT gauge begins going above the normal (for those Corvairs) 350, you begin watching it closely while driving the car.  When you have driven a distance far enough that the needle exceeds 450 and keeps moving higher, you pull over, shut off the engine and raise the engine compartment lid so the engine can cool off.  Once it has cooled sufficiently, you restart and resume the rest of your driving.
2.  In one of my situations, the engine needed a rebuilt/new carburetor.  In the other, it needed a new harmonic balancer.  Do you carry those items with you??  I don't.
3.  I'll have to agree with you on this one.<GGGG>
4.  You could have installed a larger water tank, but I'm glad to learn that you acknowledge that the water injection DID work.  If you want to keep your air-cooled Corvair engine in a strictly stock condition, then by all means don't use water injection.  But that would also keep you from adding intercoolers as well.  And some intercoolers actually use WATER cooling to remove heat from the intercooler   
5.   I've used water injection on NON-boosted engines where an intercooler would have been useless.  Intercoolers are used by auto makers because they are virtually idiot proof.  And if "everybody" is using intercoolers, then why are there a number of companies making and selling water injection systems????
6.  Those of us that try to extract additional power from out air-cooled engines are willing to try whatever works.  Just ask Tom K.
 
Frank "stock Corvair is a good beginning" Burkhard  
 
 
In a message dated 5/17/2012 8:06:10 P.M. Eastern Daylight Time, jvhroberts at aol.com writes:

1. A CHT gauge won't tell you how far to drive. 
2. I carry spare   belts and tools, and don't worry about this. 
3. We don't drive fighter   aircraft. 
4. I had water injection. To be effective, I filled the tank   twice for every fill up. Obviously, it worked but was the view worth the   climb? And what the hell was I doing adding water for cooling to an AIR COOLED   ENGINE??? 
5. Everyone is smart enough to use intercoolers NOW. And that's   been the case for a very long time. 

So, what was your point   again?