What A/F are you running with TURBO?
10-18-2005, 02:59 AM
#1
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What A/F are you running with TURBO?
I see the lowest at 11.8 at WOT and cruise at around 14.2 at very low load at 5000rpm in 6th.
Please let me know what you read and if I am still fine running this lean.
Please let me know what you read and if I am still fine running this lean.
10-18-2005, 06:22 AM
#2
Cruising I shoot for 15:1 or higher.
At WOT and in boost, I aim for 11.5:1 to 12:1.
At WOT before boost hits, I aim for 13:1 to 12:1
Part throttle is between 13:1 and 15:1.
Tim
At WOT and in boost, I aim for 11.5:1 to 12:1.
At WOT before boost hits, I aim for 13:1 to 12:1
Part throttle is between 13:1 and 15:1.
Tim
10-18-2005, 12:23 PM
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Damn I guess I like mine a little more on the rich side.
Cruise is around 14-14.5:1
20-60% thottle is in the low to mid 13s
and WOT is right at 11.5:1
But that explains the drop from 24 to 19 MPG
Cruise is around 14-14.5:1
20-60% thottle is in the low to mid 13s
and WOT is right at 11.5:1
But that explains the drop from 24 to 19 MPG
10-18-2005, 07:32 PM
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wow, im WAY to rich then, i try to keep mine 11:5 ish at WOT before/after boost, i might need to do some tuning this weekend since ive read this thread...
10-18-2005, 09:49 PM
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Thank you guys, I tought I am too lean while I cruise....time to time on VERY VERY low load (nearly no contact with the pedal) I see low 15s, but thats just for a second.When I floor it falls down to 12s imediatelly and drops below 12 only in the higher RPM at WOT (below 6000rpm it's low 12s, above that I see 11.8)
Now what do you see while idling? A steady number or a pulsing movement from rich to lean and back? My car does not keep a stable A/F at idle, it goes up, stays there for 1-2 seconds and goes down just to do the same.
Now what do you see while idling? A steady number or a pulsing movement from rich to lean and back? My car does not keep a stable A/F at idle, it goes up, stays there for 1-2 seconds and goes down just to do the same.
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10-18-2005, 11:23 PM
#8
Originally Posted by jakub2000,Oct 18 2005, 11:49 PM
Thank you guys, I tought I am too lean while I cruise....time to time on VERY VERY low load (nearly no contact with the pedal) I see low 15s, but thats just for a second.When I floor it falls down to 12s imediatelly and drops below 12 only in the higher RPM at WOT (below 6000rpm it's low 12s, above that I see 11.8)
Now what do you see while idling? A steady number or a pulsing movement from rich to lean and back? My car does not keep a stable A/F at idle, it goes up, stays there for 1-2 seconds and goes down just to do the same.
Now what do you see while idling? A steady number or a pulsing movement from rich to lean and back? My car does not keep a stable A/F at idle, it goes up, stays there for 1-2 seconds and goes down just to do the same.
No crazy pulsing either, but a little and no more than a half a point in A/F change.
If it pulses at idle check your fuel decel on your EMS.
Mine is set at fuel off above 1900 rpm
Fuel off at load below -8.0psi
Fuel off below TPS .78%
This might help
By the way, Im no expert, just giving my opinion
10-19-2005, 05:51 AM
#10
I have 578cc's and my idle and A/F would fluctuate too much if I'm at 14.1 or leaner. So, I keep the idle at 13.7ish and it's perfect.