Methanol mix A/F ratio code CRACKED!
Thread Starter
Joined: Nov 2001
Posts: 10,018
Likes: 51
From: Virginia
target comes out to 10.0 leaving other assumptions the same.
going to add a multiplier in now to adjust the bsfc in accordance with total % methannol (will bring that a/f back up)
Last edited by MIGHTYMOUSE; May 14, 2013 at 07:33 AM.
So I guess my question would be if using a wideband that reads lambda and multiplies to get a gas scale, what would you target? Since you were running best at 10.3 if that actual air fuel or what the wideband read after converting to lambda? Good stuff here. While I will not be using meth, it is interesting none the less and could have applications with varying blends of E85 as well since I have seen it vary from e68-e92!
Thread Starter
Joined: Nov 2001
Posts: 10,018
Likes: 51
From: Virginia
well like sjh posted in here years ago. if you are reading lambda or reading the gasoline multiplier of lambda the number you 'look for' SHOULD stay the same.
however the actual ratio of the fuel blends is not that number being displayed.
and all that being said i was melting pistons at 11.5 and not at 10.3! (so in my head im wanting to believe there is more to it lol)
if anyone has taken a straight methanol car down the track staring at around 11.5 on a gas scale meter and been happy with the results i would love to hear it!
however the actual ratio of the fuel blends is not that number being displayed.
and all that being said i was melting pistons at 11.5 and not at 10.3! (so in my head im wanting to believe there is more to it lol)
if anyone has taken a straight methanol car down the track staring at around 11.5 on a gas scale meter and been happy with the results i would love to hear it!
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FYI- I run 2-15 nozzles. 100%meth and 93 octain. 9.8-1 compression. A/F at 11.3-1 or so.
No melted anything yet. Best- 8.4/ 166mph 1/4 ,Best 5.31 at 132mph 1/8.
So, that works for me.
No melted anything yet. Best- 8.4/ 166mph 1/4 ,Best 5.31 at 132mph 1/8.
So, that works for me.
Thread Starter
Joined: Nov 2001
Posts: 10,018
Likes: 51
From: Virginia
slowhawk not sure what your angle is but if your engine is bigger 427>364, turbo is t6>t4 and car is lighter.. then heck yea you can run it leaner and / or less octane.
#carb intake#electric waterpump#nopowersteering#3 speed trans#carbon driveshaft#4" exhaust
so if you are saying after all that that your company shop race car is .05 quicker on pump gas/meth than my street car on pump/race/meth.. uhh.. congrats?
whole story > part of the story come on man we are all on the same team wth.
#carb intake#electric waterpump#nopowersteering#3 speed trans#carbon driveshaft#4" exhaust
so if you are saying after all that that your company shop race car is .05 quicker on pump gas/meth than my street car on pump/race/meth.. uhh.. congrats?
whole story > part of the story come on man we are all on the same team wth.
Thread Starter
Joined: Nov 2001
Posts: 10,018
Likes: 51
From: Virginia
Sorry pretty vague statement. I should say the timing is key in getting the car to spool to 200kpa quickly it looks like since your afrs are what people might consider to be on the rich side.