[FC] Re;120 hp engine

Gary Swiatowy mopar at jbcs2.net
Fri May 5 05:21:14 EDT 2006


Great reply Bob,
I have heard this question asked for many years.
Mostly people want to be told some simple fix that costs nothing or next to 
nothing, and there is really no simple fix.
I heard the same question back in the 70's when gas became scarce and 
expensive then.
I remember people telling me that they could not afford premium, or they 
were afraid they would blow the motor up if they put good gas in 
it............but could we tell them what therse funny noises were when they 
accelerated???
They didn't want to hear they were melting pistons.........and ruining their 
motors. And a lot were ruined that way!
Not only Corvairs, but a lot of Muscle car motors as well.
Bite the bullet, use the good gas, or sell it and get something else, I'm 
afraid.
And be happy you're not feeding a big block MOPAR or Ford etc that gets 10 
MPG......

Gary Swiatowy
----- Original Message ----- 
From: <BobHelt at aol.com>
To: <cber1944 at yahoo.com>; <corvanatics at corvair.org>
Sent: Friday, May 05, 2006 12:52 AM
Subject: Re: [FC] Re;120 hp engine


>
> In a message dated 5/4/2006 2:21:48 PM US Mountain Standard Time,
> cber1944 at yahoo.com writes:
>
> the  question I had was how can I wean my Greenbrier from 93% to 94 % 
> octain
> to  just regular gas and his respone was it is hard to change over a 140 
> or
> 160 hp  to just reg but a120 hp dose not have the harden valves and it can 
> run
> on reg  gas.
> What are you all think about this is it  bunk or is he right, need your 
> input!
>
>
>
> Hi Charles,
> Nobody seems to have answered, so I will.
> There are a few things you can do....
> Deflash the cylinder heads to get the best cooling possible,
> Use a water injection system
> Retard the spark timing
> lower the compression ratio
> run larger main jets.
> there are others but these come to mind
>
> Concerning the 120 hp engine, I suppose you mean the 80 or 95 HP engines
> that will run on regular. This is because of their low CR and camshafts.
> It has nothing to do with hardned valves or such. Hardened valves and/or
> seats are standard on all Corvairs. But these do not affect the ability to 
> run
> on regular. Basically the higher hp engines have higher CRs (except the 
> turbos
> engines) and thus require higher octane gas. It's just a fact of life.
> I hope that this helps.
> Regards,
> Bob Helt
>
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