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ed_ma61
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Twin T/B Conversion - Flow vs Control... Thu, 13 March 2003 12:19 Go to next message
a bit of a hardcore question but check out:

http://board.performanceforums.com/forums/showthre ad.php?s=&threadid=67145657

cheers
ed

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M.W.P.
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Re: Twin T/B Conversion - Flow vs Control... Thu, 13 March 2003 12:59 Go to previous messageGo to next message
The only way your going to find out is to try it.
Of course, this is always the problem with changing TB... making sure that you dont go so big that you loose idle quality and low speed accuracy.
If it is a problem, you could try using a logarithmic cable pully, or if it already has one, get/make one with a bigger slope.

Im thinking youve probably gone a tad too large.

Does anyone have a rough calculation of TB size compared to max intake CFM?
A rough estimate says youll be pulling about 450CFM with WOT at peak torque.
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ed_ma61
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Re: Twin T/B Conversion - Flow vs Control... Thu, 13 March 2003 18:47 Go to previous message
well, hopefully if i can get the cable pull sorted so theres hi-fidelity control at low openings, things should be ok...

heres some EXCELLENT flow data:

http://www.accufabracing.com/Flow%20Data.htm

STOCK 57 MM COBRA TWIN

TESTED @ 3" - 357 CFM
CORR @ 20" - 921 CFM
CORR @ 25" - 1032 CFM
CORR @ 28" - 1089 CFM

cheers
ed

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