Reflash: Lean High end
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caorndorff
- Posts: 10
- Joined: Wed Apr 06, 2005 1:14 am
Reflash: Lean High end
I have a Si reflash and from 4200-5200 rpm the A/F is fine at 13.2:1. But then from 5200-6500rpm it is at 13.9-14:1. From 6800rpm on it is back to 13.3:1. I dyno'ed on a Dyno Dynamics Dyno, it was cold in the garage at 50 degrees. Also i am at 5330ft.
Re: Reflash: Lean High end
Do you have a cat? If you test with a cat in the system, the reading may be leaner than it is. You might want to see what the dyno wideband says you are at a/f wise when you are at idle. If it's not around around 14.5:1 then that's a good indication that the cat is altering your reading.caorndorff wrote:I have a Si reflash and from 4200-5200 rpm the A/F is fine at 13.2:1. But then from 5200-6500rpm it is at 13.9-14:1. From 6800rpm on it is back to 13.3:1. I dyno'ed on a Dyno Dynamics Dyno, it was cold in the garage at 50 degrees. Also i am at 5330ft.
2003 black RSX type-s / jrsc @ 12psi / methanol injection / aftercooled
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caorndorff
- Posts: 10
- Joined: Wed Apr 06, 2005 1:14 am
Re: Reflash: Lean High end
No cat in the systemRazathorn wrote:
Do you have a cat? If you test with a cat in the system, the reading may be leaner than it is. You might want to see what the dyno wideband says you are at a/f wise when you are at idle. If it's not around around 14.5:1 then that's a good indication that the cat is altering your reading.