Just picked up a 2009 M8 with the OVS tial system. What would be the AFR numbers I should be looking for. Running 100LL @ 9500'
Thanks
Thanks
AFR Numbers???
- Thread starter u2celk
- Start date
No leaner than about 12.5 and try and keep it from ritchening up beyond about 13.8 at any point other than idle. Wide open should be right at 13.
T
Turbo Monster
Member
I thought the same thing. Other way around 13 in leaner 12 is richer
T
Turbo Monster
Member
I thought the same thing. Other way around 13 in leaner 12 is richer
G
Going West
Well-known member
The higher the number the leaner it is, just goes to show you real cant take any adivice on the is forum with out knowing the sender, way too many people who like to spew out crap they have no idea about or read somewhere else.
Well are the numbers good to use?
11.8 to 12.2 wot
13.0 to 14.0 mid
14.5 to15.5 idle
These are some numbers I got last year my pump gas
14.5 at idle
11.8 at wot
These are the numbers I got for my propane turbo this year. Give Travis or Garr a call at OVS they'll point you in the right direction
13.0 to 14.0 mid
14.5 to15.5 idle
These are some numbers I got last year my pump gas
14.5 at idle
11.8 at wot
These are the numbers I got for my propane turbo this year. Give Travis or Garr a call at OVS they'll point you in the right direction
do not know anything about your package but have an AEM gauge on my 2010cfr 800 stock at the moment...and what I see stock-
-light throttle to lower mid range 15
-upper mid range 12-13
-WOT 11.2
thinking the AFR numbers may not be that accurate other than WOT on a 2 stroke?? but good for before and after comparisons I suppose?
J
Jammmin
Well-known member
11.8 to 12.2 wot
13.0 to 14.0 mid
14.5 to15.5 idle
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You dont have to worry about idle that much. I have run mine at 16 on idle with no probs, however I now run it at 14.00 at idle.
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Better to be fat than lean.
So adjust it starting with it fat then going a little leaner.
and
Adjust your fuel, one color at a time.
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Make sure you are running the best fuel possible like sunoco 112
13.0 to 14.0 mid
14.5 to15.5 idle
-
You dont have to worry about idle that much. I have run mine at 16 on idle with no probs, however I now run it at 14.00 at idle.
-
Better to be fat than lean.
So adjust it starting with it fat then going a little leaner.
and
Adjust your fuel, one color at a time.
-
Make sure you are running the best fuel possible like sunoco 112
M
M8Freerider
Well-known member
WOT – 11.2 to 11.9 if I get into the 12’s I get out of it.
Mid - 13.5 to 15 lots of blipping
Idle – 14.5 to ---
2010 M8 Cutler Stage II at 6.5psi. I add one gallon of AV gas to a tank with a splash of oil, Av gas brings the EGT’s down as well. Burn looks good.
Hope this helps.
Mid - 13.5 to 15 lots of blipping
Idle – 14.5 to ---
2010 M8 Cutler Stage II at 6.5psi. I add one gallon of AV gas to a tank with a splash of oil, Av gas brings the EGT’s down as well. Burn looks good.
Hope this helps.
My 09 M8 CPC pump gas at just shy of 6psi runs like a turd unless i see 12.5 to 13 at WOT. Made me nervous at first, but talked to a handful of guys that say the same thing. 12.2 and im short on RPM. 94 Chevron pump.
M
M8Freerider
Well-known member
I’m getting 8100 – 8200rpm, if I get into the 12’s my egt’s start to warm up. Its not instant but on a longer pull it starts to get warm. Do you have egt gauge and where are your temps?
Running Chevron 94 as well.
Running Chevron 94 as well.
No egts, just an aem wideband. They aren't always perfect, and no sled is totally alike. I've aimed for a 12.0, and just find it won't pull, not making the power or running clean, get it up so I see a 12.5-12.7 and it's happy and pulls hard. I checked the plugs and they look decent, mind you not a good plug chop... and no I'll effects in 400 or so miles. I too put a shot of oil in the fuel to be a bit safer.
