Trying to get the perfect afr.. questions
I dont see how that can be... AFR is AFR... plugs may give a little insight but AFR is one of the easiest tuning tools...
as for WHAT it should be 11.8...12...12.5... i dont know.
I would think for safety sake I would be looking at getting it closer to 12 flat.
W/boost we aim for about 11.8
as for WHAT it should be 11.8...12...12.5... i dont know.
I would think for safety sake I would be looking at getting it closer to 12 flat.
W/boost we aim for about 11.8
I dont see how that can be... AFR is AFR... plugs may give a little insight but AFR is one of the easiest tuning tools...
as for WHAT it should be 11.8...12...12.5... i dont know.
I would think for safety sake I would be looking at getting it closer to 12 flat.
W/boost we aim for about 11.8
as for WHAT it should be 11.8...12...12.5... i dont know.
I would think for safety sake I would be looking at getting it closer to 12 flat.
W/boost we aim for about 11.8
Just as an example, when the tune-up on most of the engines that I tune is right, the a/f ratio is usually in the high 13's-mid 14's.
Last edited by WE TODD DID; Apr 12, 2009 at 08:11 PM.
Launching!
Joined: Dec 2005
Posts: 232
Likes: 0
From: nj, edison
i would retard the timing by at least 3 deg. and your afr should go a little richer, stock tunes are relatively safe but i don't think they are safe enough for 100 shot. the timing table needs to be touched up. i know for me, when i run on the juice the eng. rides on cells that it doesn't normally see in n/a form. i certainly believe that it's true what they say about cutting and inspecting the plugs, but on the 100 shot you should be ok, if you just run 11.8 to 12.3 off the wb, the timing is equally important.
I dont see how that can be... AFR is AFR... plugs may give a little insight but AFR is one of the easiest tuning tools...
as for WHAT it should be 11.8...12...12.5... i dont know.
I would think for safety sake I would be looking at getting it closer to 12 flat.
W/boost we aim for about 11.8
as for WHAT it should be 11.8...12...12.5... i dont know.
I would think for safety sake I would be looking at getting it closer to 12 flat.
W/boost we aim for about 11.8
A wideband sensor is not in the combustion chamber, plugs are and they will be more accurate then a wideband can be.
Figure out what the motor wants by the plugs and record what the A/F is when the plugs are right then you can monitor the A/F for changes.
Its still a stock tune and stock fuel system. The afr was flat at 13.0 no dips or anything. I think the dyno reads low as well as my n/a numbers weren't were they should be as well with lg lt's,catless x pipe, slp loudmouth, vararam and on 93 octane and tr6 plugs. Here is the dynograph.
Keep on with the suggestions as I am listening.
Keep on with the suggestions as I am listening.
yes that is stoich, but WOT is not stoich. when in PE (Power Enrichment,wot fueling) it should be much richer than stoich, and a stock tune is usually too rich and not very flat..... the differance between the too pulls is what im going off of, not the actuall numbers. i think those numbers are off quit a bit
Launching!
Joined: Dec 2005
Posts: 232
Likes: 0
From: nj, edison
that makes so much sense to me, but don't you think it's overkill for a 100 shot and say 12.3 afr and good timing, or is there more hp by reading the plugs even on a 100shot? i mean how risky is it just to settle at 12.3 with the wb.
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Verdad Gallardo Its hard to hurt something with a 100 .... you have to be WAY OFF with the tune.
There might be a few HP in dialing it in perfect.
