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post #1 of 6 Old 09-27-2011, 06:19 AM Thread Starter
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tip in AFR

What afrs should i see, before boost? And transitioning into boost?

Say at cruise speed,mash petal 1/2 throttle? No boost on gauge.

And

At cruise, mash it 3/4, mabey @ 1-2 psi on gauge, what afr?


Current: 04 Gt, sonic blue, 3.73s, 2.5" custom o/r exhaust, diablo tune, cai.

Sold: 90lx, stock short block & cam, TFS 170's, 1.72rr, typhoon intake, on3 kit 70mm, AOD, 4.10 gear, cobra 39s, C&L maf, stock tune, 11psi boost
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post #2 of 6 Old 09-28-2011, 02:42 AM Thread Starter
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Will someone share with me what your wideband reads at half and 3/4 throttle?
Just wanting an idea


Current: 04 Gt, sonic blue, 3.73s, 2.5" custom o/r exhaust, diablo tune, cai.

Sold: 90lx, stock short block & cam, TFS 170's, 1.72rr, typhoon intake, on3 kit 70mm, AOD, 4.10 gear, cobra 39s, C&L maf, stock tune, 11psi boost
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post #3 of 6 Old 09-28-2011, 04:48 PM
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if its going into boost and its not full throttle should be 12.5 and under. cruising at highway speed 13.5-14.5 WOT 11.0-11.7 from what i have read but timing plays a big roll too

afr 185 heads, dss 331
Turbo build
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post #4 of 6 Old 09-30-2011, 11:05 AM
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This will be very dependent with the tuning? I like my turbo tunes to be a little richer part throttle (1/2) since it will be into boost, 12.5-11.9 this is also a question of load as well, there are several variables when calibrating. what you don't want is 14.5 at half throttle when your in boost, whole different concept then a SC setup.

Thanks, Chris.

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post #5 of 6 Old 09-30-2011, 11:08 AM
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Quote:
Originally Posted by gator72007 View Post
Will someone share with me what your wideband reads at half and 3/4 throttle?
Just wanting an idea
3/4 throttle should be close to WOT commanded AFR to be correct.

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post #6 of 6 Old 10-01-2011, 05:03 PM Thread Starter
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Thank you

Current: 04 Gt, sonic blue, 3.73s, 2.5" custom o/r exhaust, diablo tune, cai.

Sold: 90lx, stock short block & cam, TFS 170's, 1.72rr, typhoon intake, on3 kit 70mm, AOD, 4.10 gear, cobra 39s, C&L maf, stock tune, 11psi boost
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