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Location: Sydney
Registered: September 2004
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Injector Calulators
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Fri, 11 November 2005 08:29
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Hey all,
Just wondering... how accurate are those injector calculators littered all over the net? Has anyone used one that was particularly good?
Here's a couple i've been using:
http://www.z31.com/software/injector.pl
http://www.witchhunter.com/injectorcalc1.htm
After all my upgrades, i'm thinking the injectors i have won't be up to the task of supplying up to 200rwkw+ Using my data i get
Injector size: 440 cc/min injectors(41.9 lbs/hour)
Number of injectors: 4
BSFC: 0.60
Duty cycle: 0.85
This combination will supply fuel for 237 horsepower
which is obviously waaay short of the power i need (this is power at the flywheel) According to this thing... i'll be needing at minimum, 550ccs to get close. So, who thinks i need new injectors?
Eddie.
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Location: Kita-Ku, Sapporo, Japan
Registered: January 2003
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Re: Injector Calulators
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Fri, 11 November 2005 08:35
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remember that is it both a function of absolute flow (up to.. maybe around 6000rpm) and available injection time....
so for 8000rpm, you may need 33% (as a rough guess) bigger injectors than you do for 6000rpm....
ie, 80% duty at 8000 is about 12ms, and 6000rpm is 16ms.
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Toymods Board Member I supported Toymods
Location: Turramurra, Sydney.
Registered: May 2002
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Location: Sydney
Registered: September 2004
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Re: Injector Calulators
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Fri, 11 November 2005 08:42
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Indeed Rod does have 2 sets of 660s for sale... looks like he'll only have the one set now Cheers for the quick responses guys.
Eddie.
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Location: Sydney
Registered: September 2004
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Re: Injector Calulators
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Fri, 11 November 2005 09:09
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Joel, pmed dude.
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