boost afr
SO i tryed to search could not find a good answer what is a good afr in boost i generly hold 12.8 then when vtec engage i get13.1-13.3 which is still showing up rich on the widband? is this safe my motor is a b16 this is about 9-10 psi o yea this is on a basemap but my first time on the track i refuse to run a shitty time. Crome owns me!!!!!!!!!!
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Re: boost afr
you could lean it out alittle in the higher rpms but if you really dont know what you doing its pretty good where its at. normally 12:1 is what they say for forced apps but it all depends on the setup and conditions. SO BE CAREFULL
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Re: boost afr
isnt 14.7 the ideal afr?
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Re: boost afr
seems pretty lean to me... you might want to richen a/f in boost around 12:1 to high 11s to be safe, especially if your noobie to tuning. Whats timing at as well?
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Re: boost afr
Originally Posted by the 13th round
isnt 14.7 the ideal afr?
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Re: boost afr
Originally Posted by Cyberdx16
seems pretty lean to me... you might want to richen a/f in boost around 12:1 to high 11s to be safe, especially if your noobie to tuning. Whats timing at as well?
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Re: boost afr
Originally Posted by d112crzy
yea, go ahead and do that to a boosted setup.
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Re: boost afr
Originally Posted by the 13th round
guess you missed the question mark at the end dipshit.
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Re: boost afr
14.7 is stoich. Turbo's run hotter so they have to runner richer.
So is there a Turbo Stoich? |
Re: boost afr
Originally Posted by circleburner
14.7 is stoich. Turbo's run hotter so they have to runner richer.
So is there a Turbo Stoich? ------- loser. |
Re: boost afr
Cool Off Fucker its a relivent question, yes i could of structured the question better but i thought you would use your brain! is your turbo car at 14.7? if its not share with us why it inst, otheriwse you SHUT THE ---- UP!
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Re: boost afr
11.xxafr-12.xxafr would be my target under boost for most basic ----. 14.7 under light load/cruising (no boost) 13.8-13.1 heavier load (no boost) 15's at idle for fuel economy.All this varies from user to user and setup to setup.
yes this is ---- you could have found in 3 seconds of searching. |
Re: boost afr
Originally Posted by circleburner
Cool Off Fucker its a relivent question, yes i could of structured the question better but i thought you would use your brain! is your turbo car at 14.7? if its not share with us why it inst, otheriwse you SHUT THE ---- UP!
There's tons of write ups that explain everything. |
Re: boost afr
best power/torque is usually had between 12:1 and 13.5:1 depending on many things. when you boost a high compression engine, things arent right. you have a balance to strike between retard to solve detonation issues and overly rich to solve detonation issues. do not tune richer than 10:1, 11:1 is a safe place to be in boost. the extra fuel cools the chamber and LOSES you power, but the other option is retard which also loses you power and can overheat engines and turbos and manifolds. in summary, you may not be able to lean out to 12 or 13.5 or whatever without excessive retard or detonation. hope that helps.
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Re: boost afr
i my fuel pressure was at about 45 psi i up to 50 and brought my af to a steady 12.8 untill about 7700 then it taps 13.0 but after the track im gunna start tuning my self :-\ Thanks for all serious answers also what is the best way known way to make detcans ive seen so many differ versions im thinking about the harbor freight earmuff style ;D
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