[Fot] EGT's again... the averages

[Tony Drews]

I made best power when the car ran slightly "rich", a bit richer than 
stoichiometric ie 13:1. I ended up with best power closer to 
12.5:1.  So, some of the high EGT is due to fuel still burning when 
the exhaust port opens.

The A/F meter was at the dyno, I don't have one in my car.  The 
leaded gas kills the A/F pickup.  I bought a new one for the dyno 
session and we killed it by the end of the testing.

Tony Drews

At 10:38 AM 5/23/2013, Bill Tobin wrote:
>Tony, what kind of A/F ratio setup do you use? And what ratio do you 
>shoot for?
>Thanks, Bill
>----- Original Message ----- From: "Tony Drews" <tony at tonydrews.com>
>To: <toodamnfunky at comcast.net>; "Scott Janzen" <sjanzen at me.com>
>Cc: "fot" <fot at autox.team.net>
>Sent: Thursday, May 23, 2013 10:30 AM
>Subject: Re: [Fot] EGT's again... the averages
>
>
>>By the way, my carb jetting was determined on an engine Dyno, and 
>>included the use of an air/fuel ratio gauge.  So, I just noted the 
>>EGT's produced at that time as "baseline".
>>
>>Tony Drews
>>
>>At 09:19 AM 5/23/2013, toodamnfunky at comcast.net wrote:
>>>Thanks guys for the input.
>>>
>>>We see probes mounted anywhere from 1.75 " to 6" from the flange
>>>
>>>and EGT's from 1300 to 1400. So it's an average of 3.9" from the flange and
>>>1362F for EGT's.
>>>
>>>Very helpful,
>>>
>>>Jim G.
>>>
>>>
>>>
>>>----- Original Message -----
>>>
>>>
>>>From: "Scott Janzen" <sjanzen at me.com>
>>>To: "fot" <fot at autox.team.net>
>>>Sent: Thursday, May 23, 2013 6:42:37 AM
>>>Subject: Re: [Fot] EGT's again
>>>
>>>2" from the head. B  1300 degrees on the GT6 at 7000 RPM, 32 
>>>degrees advance.
>>>Tailpipe is tan/grey, leaded 110, forged Venolia pistons, 12:1 compression
>>>I suspect I could lean it out a bit - need some dyne time with the webers to
>>>determine.
>>_______________________________________________
>>fot at autox.team.net
>>
>>http://www.fot-racing.com
>>
>>Donate: http://www.team.net/donate.html
>>Archive: http://www.team.net/archive
>>Forums: http://www.team.net/forums
>>Unsubscribe/Manage: 
>>http://autox.team.net/mailman/options/fot/william.tobin31@verizon.net