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EFILive 2 Step...ok for FI? Anybody using?

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Old 05-06-2007, 07:25 AM
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Default EFILive 2 Step...ok for FI? Anybody using?

Anybody using the EFILive 2-step function on their forced induction car? The method used to control rpm is fuel cut. I always thought cutting fuel in a forced induction car was a no-no. Any thoughts? Is it safe?
Old 05-06-2007, 08:07 AM
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i asked the exact same question and everyone said NO.....i just kept my harlan 2 step
Old 05-06-2007, 10:20 AM
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Depends on if you are making boost at that rpm cutoff point.
Old 05-06-2007, 10:28 AM
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No, it really doesn't depend. A fuel cut rev limiter is useless for a two step. A fuel cut is only good for saving parts from a hard over rev, and it still isn't as good as a spark cut. The ONLY thing a fuel-cut is good for is saving a cat converter.
Old 05-08-2007, 06:59 AM
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Originally Posted by wait4me
Depends on if you are making boost at that rpm cutoff point.

Yep, a fuel is cutoff it is not lean, it is a air pump. Also flame temperature starts falling off FAST after 14.7 so even if there is some fuel kicking around there is not much to go on and without a stratified charge knock is nearly impossible.
Old 05-08-2007, 08:10 AM
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Originally Posted by Alvin@pcmforless.com
Yep, a fuel is cutoff it is not lean, it is a air pump. Also flame temperature starts falling off FAST after 14.7 so even if there is some fuel kicking around there is not much to go on and without a stratified charge knock is nearly impossible.
Additional research (i.e. speaking with my tuner), confirmed this.
Old 05-08-2007, 09:08 AM
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Same concept on DFCO




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