At what A/f Ratio would be considered too rich for NA?
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From: Carlisle, PA, USA
Re: (AllMtrRex)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by preludedriva »</TD></TR><TR><TD CLASS="quote">thought 14.7 was good A/f at WOT for NA?</TD></TR></TABLE>
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From: Mesa, AZ, usa
Re: At what A/f Ratio would be considered too rich for NA? (preludedriva)
There is no magic number. But if you start to lose power then you are too rich.
Simple rule, run as much fuel as possible without losing power and as little timing as possible without losing power.
Thats how i role!
Part throttle is a different story though.
Simple rule, run as much fuel as possible without losing power and as little timing as possible without losing power.
Thats how i role!
Part throttle is a different story though.
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From: Baton rouge, LA, USA
Re: (preludedriva)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by preludedriva »</TD></TR><TR><TD CLASS="quote">thought 14.7 was good A/f at WOT for NA?</TD></TR></TABLE>
your an idiot.
14.7 is good for idle AFR.
your an idiot.
14.7 is good for idle AFR.
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From: Baton rouge, LA, USA
Re: (AllMtrRex)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AllMtrRex »</TD></TR><TR><TD CLASS="quote">Im gonna say 14.7 is for idle/low rpms..... </TD></TR></TABLE>
idle yes, rpms no, it should decrease as the rpms go up, i have my partial throttle tuned for around 14.0~13.9ish.
</TD></TR></TABLE>idle yes, rpms no, it should decrease as the rpms go up, i have my partial throttle tuned for around 14.0~13.9ish.
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Re: At what A/f Ratio would be considered too rich for NA? (no2psi)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by no2psi »</TD></TR><TR><TD CLASS="quote">There is no magic number. But if you start to lose power then you are too rich.
Simple rule, run as much fuel as possible without losing power and as little timing as possible without losing power.
Thats how i role!
Part throttle is a different story though. </TD></TR></TABLE>
where'd you learn that..little timing as possible...?wtf...
Simple rule, run as much fuel as possible without losing power and as little timing as possible without losing power.
Thats how i role!
Part throttle is a different story though. </TD></TR></TABLE>
where'd you learn that..little timing as possible...?wtf...
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Re: (IntegraType-R)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IntegraType-R »</TD></TR><TR><TD CLASS="quote">
your an idiot.
14.7 is good for idle AFR.</TD></TR></TABLE>
k no need to be an *** i was asking a question hence the beginnings of this thread if i knew the answer then this thread would not exist
your an idiot.
14.7 is good for idle AFR.</TD></TR></TABLE>
k no need to be an *** i was asking a question hence the beginnings of this thread if i knew the answer then this thread would not exist
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From: upstate NY
Re: (preludedriva)
how can anyone even guess at anything without knowing the setup? could be 14:1 compression on some crazy built motor, or it could be an ebay header and exhaust with a VAFC controller. a little info on the engine might help.
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From: the backwoods, usa
Re: At what A/f Ratio would be considered too rich for NA? (IntegraType-R)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IntegraType-R »</TD></TR><TR><TD CLASS="quote">
where'd you learn that..little timing as possible...?wtf...</TD></TR></TABLE>
no offense but it sounds like you have read a lot of "textbook" tuning threads/books/whatever.
you give the engine whatever it wants to idle on.
by running the least amount of advance without going backwards you have a larger window of safety.
ask yourself this... the engine makes peak tq with 27 degrees advance then stops increasing with more advance. but still makes the same tq on 24 degrees advance. which is safer?? A/F's being the same
where'd you learn that..little timing as possible...?wtf...</TD></TR></TABLE>
no offense but it sounds like you have read a lot of "textbook" tuning threads/books/whatever.
you give the engine whatever it wants to idle on.
by running the least amount of advance without going backwards you have a larger window of safety.
ask yourself this... the engine makes peak tq with 27 degrees advance then stops increasing with more advance. but still makes the same tq on 24 degrees advance. which is safer?? A/F's being the same
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From: Cantonment, FL
Re: At what A/f Ratio would be considered too rich for NA? (lohatch)
24 duh having those extra degree's is just wasted energy.
On my motor (stock block) i like to run a little higher advance in timing so it doesnt take as much pedal to get going. I also like to run on the lean side in part throttle due to obvious reasons. Stock compression gives me LOTS of room to play tho. With higher compression i wouldnt run the advance that i run right now but i still enjoy having some ***** to part throttle.
so many engines are setup so differently and it takes different fueling and ignition requirements to make them happy motors.
having those extra degree's is just wasted energy.On my motor (stock block) i like to run a little higher advance in timing so it doesnt take as much pedal to get going. I also like to run on the lean side in part throttle due to obvious reasons. Stock compression gives me LOTS of room to play tho. With higher compression i wouldnt run the advance that i run right now but i still enjoy having some ***** to part throttle.
so many engines are setup so differently and it takes different fueling and ignition requirements to make them happy motors.
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From: Baton rouge, LA, USA
Re: At what A/f Ratio would be considered too rich for NA? (98vtec)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98vtec »</TD></TR><TR><TD CLASS="quote">24 duh having those extra degree's is just wasted energy.
On my motor (stock block) i like to run a little higher advance in timing so it doesnt take as much pedal to get going. I also like to run on the lean side in part throttle due to obvious reasons. Stock compression gives me LOTS of room to play tho. With higher compression i wouldnt run the advance that i run right now but i still enjoy having some ***** to part throttle.
so many engines are setup so differently and it takes different fueling and ignition requirements to make them happy motors.</TD></TR></TABLE>
having those extra degree's is just wasted energy.On my motor (stock block) i like to run a little higher advance in timing so it doesnt take as much pedal to get going. I also like to run on the lean side in part throttle due to obvious reasons. Stock compression gives me LOTS of room to play tho. With higher compression i wouldnt run the advance that i run right now but i still enjoy having some ***** to part throttle.
so many engines are setup so differently and it takes different fueling and ignition requirements to make them happy motors.
</TD></TR></TABLE>
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From: Baton rouge, LA, USA
Re: At what A/f Ratio would be considered too rich for NA? (lohatch)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lohatch »</TD></TR><TR><TD CLASS="quote">
no offense but it sounds like you have read a lot of "textbook" tuning threads/books/whatever.
you give the engine whatever it wants to idle on.
by running the least amount of advance without going backwards you have a larger window of safety.
ask yourself this... the engine makes peak tq with 27 degrees advance then stops increasing with more advance. but still makes the same tq on 24 degrees advance. which is safer?? A/F's being the same</TD></TR></TABLE>
I give the engine whatever it wants to idle on, of course, but if a engine takes 10.1 AFR to idle, somethings wrong..specially with no throttle and just running... it shouldn't take anything richer then 14.0's to idle, if that.
With your second question, if my peak tq stops at 27 degrees, and stops incresing, and still makes the same tq at 24. i'd run 25, rule of thumb is back it off a degree or two. What i've always done, and ran. I'm not being an ***, i'm coming in here given correct info before misleading stuff is said.
no offense but it sounds like you have read a lot of "textbook" tuning threads/books/whatever.
you give the engine whatever it wants to idle on.
by running the least amount of advance without going backwards you have a larger window of safety.
ask yourself this... the engine makes peak tq with 27 degrees advance then stops increasing with more advance. but still makes the same tq on 24 degrees advance. which is safer?? A/F's being the same</TD></TR></TABLE>
I give the engine whatever it wants to idle on, of course, but if a engine takes 10.1 AFR to idle, somethings wrong..specially with no throttle and just running... it shouldn't take anything richer then 14.0's to idle, if that.
With your second question, if my peak tq stops at 27 degrees, and stops incresing, and still makes the same tq at 24. i'd run 25, rule of thumb is back it off a degree or two. What i've always done, and ran. I'm not being an ***, i'm coming in here given correct info before misleading stuff is said.
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From: Baton rouge, LA, USA
Re: (preludedriva)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by preludedriva »</TD></TR><TR><TD CLASS="quote">
k no need to be an *** i was asking a question hence the beginnings of this thread if i knew the answer then this thread would not exist</TD></TR></TABLE>
no need...i helped you out.
sorry for coming off like an ***.
k no need to be an *** i was asking a question hence the beginnings of this thread if i knew the answer then this thread would not exist</TD></TR></TABLE>
no need...i helped you out.
sorry for coming off like an ***.
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