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Re: EFI WOT air fuel ratio for max power? [Re: 72Swinger] #1775214
03/10/15 01:25 AM
03/10/15 01:25 AM
Joined: Feb 2003
Posts: 1,238
Nevada
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dezduster Offline OP
pro stock
dezduster  Offline OP
pro stock
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Joined: Feb 2003
Posts: 1,238
Nevada
72swinger thank you for that information.
The dyno tuner I talked to is familiar with the EZ 2.0 EFI system. Says it shouldn't take more than an hour to get it crisp and safe. I have had the feeling its going rich at WOT. I may be dead wrong, that's fine as long as I am learning.

Re: EFI WOT air fuel ratio for max power? [Re: dezduster] #1775215
03/10/15 08:28 AM
03/10/15 08:28 AM
Joined: Jan 2005
Posts: 2,540
Milwaukee WI
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TRENDZ Offline
master
TRENDZ  Offline
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Joined: Jan 2005
Posts: 2,540
Milwaukee WI
EFI makes you re-think, or change your thinking on things. I always figured with efi, more power/higher rpm needs more pw. No.... Your fuel table SHOULD drop off in value beyond peak tq at the same map value axis. This is the most common mistake with new/ novice efi users.
A well tuned efi fuel map will show you exactly where your engine breathes the best.
Max cylinder fill occurs @ peak tq rpm. after that cyl fill drops off. the fuel must do the same, and at a higher degree. You end up using more fuel overall,due to more events per second, but the cycle is shorter in duration.


"use it 'till it breaks, replace as needed"
Re: EFI WOT air fuel ratio for max power? [Re: TRENDZ] #1775216
03/10/15 11:07 PM
03/10/15 11:07 PM
Joined: Oct 2007
Posts: 4,209
New York
polyspheric Offline
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polyspheric  Offline
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Joined: Oct 2007
Posts: 4,209
New York
Unless, of course, you need the extra fuel to reduce chamber temps.

Ooppsss....

There is no number, it's whatever works.


Boffin Emeritus
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