Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post

MGB=MPG · 08-20-2011, 07:06 AM

im pretty old school my self..

i do *flying cuts* to check the plugs .. that is switch off on a run and then pull plugs ..

there is some discussion on aviation sites [usually only ones who worry about leaning via EGT ] about setting Lean of peak LOP or ROP rich of peak ..

lean of peak is a ,, alternative ,, one would think LOP would result in enhanced FE

aviation engines one can adjust the mixture *on the fly*

i am told if i get set too lean i will burn the valves .. i wonder [and inquire] if valve burning happens at high EGT and if close examination of EGT might prevent that ..
my EGT sensor is one inch from the head on cyl # 1..

i do not do very much WOT ,, it runs up so fast.. i set throttle by manifold vacuum ,,,, attempt no less than 10INGH ..5INHG on a hard pull up grade ..

15INHG in cruise ..

single SU HIF 44 .on a heilmholltz log .. my needle is *not right * im flowing much better than as designed ,,K&N filters and enhanced exhaust sector ,,
my last adjustment was 1/4 turn lean ..
currently seeing 1300 on the EGT and looking for the drop .. Lean of peak
i have no flippin idea where im set in the profile now

here are plug images ,, not so current but about he same i think ,,

08-20-2011, 07:06 AM	#29 (permalink)
MGB=MPG Smooth Operator Join Date: Feb 2011 Location: dover tn Posts: 147 Old Yellar - '79 MGB Tourer Drop-Hood Coupé Sports Cars 90 day: 25.83 mpg (US) Old Brown Ford - '91 Ford Bronco Custom MAGNUM - '05 DODGE MAGNUM SXT Thanks: 9 Thanked 15 Times in 14 Posts	im pretty old school my self.. i do *flying cuts* to check the plugs .. that is switch off on a run and then pull plugs .. there is some discussion on aviation sites [usually only ones who worry about leaning via EGT ] about setting Lean of peak LOP or ROP rich of peak .. lean of peak is a ,, alternative ,, one would think LOP would result in enhanced FE aviation engines one can adjust the mixture on the fly i am told if i get set too lean i will burn the valves .. i wonder [and inquire] if valve burning happens at high EGT and if close examination of EGT might prevent that .. my EGT sensor is one inch from the head on cyl # 1.. i do not do very much WOT ,, it runs up so fast.. i set throttle by manifold vacuum ,,,, attempt no less than 10INGH ..5INHG on a hard pull up grade .. 15INHG in cruise .. single SU HIF 44 .on a heilmholltz log .. my needle is not right im flowing much better than as designed ,,K&N filters and enhanced exhaust sector ,, my last adjustment was 1/4 turn lean .. currently seeing 1300 on the EGT and looking for the drop .. Lean of peak i have no flippin idea where im set in the profile now here are plug images ,, not so current but about he same i think ,, Attached Thumbnails Last edited by MGB=MPG; 08-20-2011 at 07:20 AM..