K value [Archive] - SR20 Forum

: K value


93specv
12-05-2008, 02:17 AM
what are guys running for k value on a t25, s4, z32 maf setup @ 3 + 4 bar???

Calum
12-05-2008, 09:05 AM
What injectors?

93specv
12-05-2008, 01:17 PM
haha, ofcourse!!! nismo 555's w/walbro 255

93specv
12-06-2008, 01:56 PM
is it just nobody knows? or nobody is willing to help? i never have good response posting in this section!

Calum
12-06-2008, 03:04 PM
Its the cricket section. :)

I've never worked with those injectors.

You can compute a ballpark k-value from a known program using the same maf (and type of ECU, B13 or B14):

new k-value = (new injector size)/(old injector size) * (old k value)

So for example if you use the Mine's 550 Z32 maf bin on this page (they probably have the k value correct)-

http://www.plmsdevelopments.com/sr20_bins.shtml

And assume that your injectors at 4 bar flow (550 * 1.15) = 633

So-

new k value = (550/633)*40387

new k value = 35091

93specv
12-06-2008, 10:32 PM
cricket section i guess :)

thanx for the useful tid bits :)
i will just have to play around