|
Title: Checking KRKTE and setting right factor Post by: masterj on November 20, 2011, 03:20:35 AM Could someone help me out with KRKTE? I'm trying to test if my current KRKTE factor is OK...
I have 1.8T AWT with 260cc injectors. Current KRKTE is 0.10478 but I can't get this number using (50.2624 * Vhcyl) / Qstat formula. So is my factor bad or my formula? Factor is 0,000111 ECU SW: 4B0906018DC Title: Re: Checking KRKTE and setting right factor Post by: createddeleted on November 20, 2011, 10:24:58 PM So here's my math on this, which I believe to be correct. (which I will be adding to my "theoretical" DIY/reference soon)
Rated vs. Operating pressure: If you're AWT has 260cc injectors: 260 @ 3Bar (43.5psi) = 260cc 260 @ 4Bar (58.0psi) = 300.22cc (assuming a 4bar FPR that I believe comes stock on your car) Conversion given n-heptane (the testing solution for injectors valued at 0.684g/cc Density): 300.22 x 0.684 = 205.250 g/min 50.2624*Vhzyl / Qstat Vhzyl = Displacement/Cylinders = 1.781/4 = 0.44525 Qstat = Injector value @ operating pressure = 205.250 --50.2624*0.44525/205.250 ---22.3793336/205.250 Calculated KRKTE= 0.10903 Your stock value: 0.10478 Your calculated value: 0.10903 Technically, thats a 4% final difference in injector calculation, not too far off but enough that I would want to change it. Title: Re: Checking KRKTE and setting right factor Post by: masterj on November 21, 2011, 01:36:57 AM Thank you for calculations ;) I've set my factor to 0,0001155
Title: Re: Checking KRKTE and setting right factor Post by: CQ1 on March 15, 2017, 04:17:18 AM Thank you for calculations ;) I've set my factor to 0,0001155 Hello, Was this factor 0,001155 correct? Because i found some info that 0280156065 have 252cc/min @3bar? Got 4B0906018CG ECU, and KRKTE value 0,10478. Title: Re: Checking KRKTE and setting right factor Post by: CQ1 on March 15, 2017, 04:19:02 AM up
|