This is topic a/f ratio for boosted cars in forum Tech Talk at Northern California Ford Owners  .


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Posted by 79 cobra (Member # 10137) on :
 
my a/f ratio stays between 12.1-12.8 is that to lean or not if i go any richer car starts to bog a little got the anderson pms series 4 with water methanol and 14 psi @ 26 degrees timing


thanks,
brett
 

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Posted by 87 hatch (Member # 8100) on :
 
thats to lean for boost . I run mine at 11.5 to 11.7 afr . that's a ton of timing

[ November 02, 2011, 10:38 AM: Message edited by: 87 hatch ]
 

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Posted by 79 cobra (Member # 10137) on :
 
yupp thanks to the water methanol i upp the timing from 21 to 26 but if i go any richer say any where in the 11.1-11.9 it starts to bogg and loose power
 

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Posted by 707notchback jaejae (Member # 7958) on :
 
aftercooler ftw
 

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Posted by 79 cobra (Member # 10137) on :
 

quote:

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Originally posted by 707notchback jaejae:
aftercooler ftw

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quote:

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Originally posted by 79 cobra:

quote:

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Originally posted by 707notchback jaejae:
aftercooler ftw

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aftercoolers are pretty sick but way outta my price range water mwethanol works great its cheap and it dropped my iats from 220 down to 120-130 after every pass so im stickin with water methanol just worried about my a/f ratio everyone is telling me it's to lean

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make sure you take care of that prob ..
 

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Posted by 79 cobra (Member # 10137) on :
 
i just got off the phone with anderson and they said to ad just a lil bit of fuel to the wot in higher rpm from 3000 up just went down the street did a couple 3rd gear pull a/f ratio reads betwwen 11.8-12.4 runs great think i ganied more power from it gonna try and add a bit more fuel and see if she likes it
 

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Posted by CornOil_&_Boost (Member # 5888) on :
 

quote:

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Originally posted by 707notchback jaejae:

quote:

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Originally posted by 79 cobra:

quote:

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Originally posted by 707notchback jaejae:
aftercooler ftw

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aftercoolers are pretty sick but way outta my price range water mwethanol works great its cheap and it dropped my iats from 220 down to 120-130 after every pass so im stickin with water methanol just worried about my a/f ratio everyone is telling me it's to lean

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make sure you take care of that prob ..

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quote:

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Originally posted by dvuspny:
This is what Im planning to use.... Great input. Thank you to people with the experience and knowledge of the products. I have read lots of great information on methanol/h2o injection. Love the numbers. .......!!!!!!!

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my friend uses a dual nozzle setup on a YSI with 24 pounds of boost and his IAT's are in the 110 area....50/50 methanol..

I'm on an intercooled single nozzle setup and see in the 95 area
 

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Posted by 79 cobra (Member # 10137) on :
 

quote:

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Originally posted by CornOil_&_Boost:

quote:

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Originally posted by 707notchback jaejae:

quote:

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Originally posted by 79 cobra:

quote:

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Originally posted by 707notchback jaejae:
aftercooler ftw

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aftercoolers are pretty sick but way outta my price range water mwethanol works great its cheap and it dropped my iats from 220 down to 120-130 after every pass so im stickin with water methanol just worried about my a/f ratio everyone is telling me it's to lean

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make sure you take care of that prob ..

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what problem? boost creates a lot of heat....especially on a non intercooled setup...120-130 degree temps are great due to the methanol...


and your a/f should be around 11.6 to 11.8

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