NEED INFO (hi and lo throttle point on SAFC2) - Boost Forum

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NEED INFO (hi and lo throttle point on SAFC2)
Thursday, September 08, 2005 5:10 AM
Would it be possible for someone to explain to me what the hell the difference is between the lo and hi throttle points in the SAFC? For instance i have my lo set at -30 for idle at 1000 rpms and then as the rpms go up im taking out anywhere from 25-35% up to my redline, but i havent touched the hi settings at all, what exactly does the hi setting do ? Ive done some research and just become even more confused



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Re: NEED INFO (hi and lo throttle point on SAFC2)
Thursday, September 08, 2005 10:39 PM
bump, come on someone must know what this damn hi throttle is all about



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Re: NEED INFO (hi and lo throttle point on SAFC2)
Friday, September 30, 2005 6:00 AM
I'd also like some input on this



Re: NEED INFO (hi and lo throttle point on SAFC2)
Friday, September 30, 2005 7:24 AM
High and low throttle settings for the SAFC:

The Low (Lo) throttle setting sets the maximum point at which the SAFC adjusts the fuel delivery for your Lo throttle table. So if you have your Lo setting at 30%, the SAFC uses the Lo throttle table from 0% to 30% throttle.

The High (Hi) throttle setting sets the minimum point at which the SAFC adjusts the fuel delivery for your Hi throttle table. If you have your Hi setting at 70%, the SAFC will use the Hi throttle table from 70% throttle to 100%.

So that leaves a gap, and you might be wondering what happens between 30% and 70%, since you don't have a "Middle" table. The SAFC uses a math formula called linear interpolation to find a value based on your Lo throttle table, the Hi throttle table, and the current throttle percentage reading.





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