Subject: Injector flow rates-nt 13b
From: Paul
Date: 5/16/1999, 7:13 AM
To: zz

Paul Yaw wrote:

Paul wrote:

MAR34807@aol.com wrote:


<< StJames515@aol.com wrote:
 >
 > Hi Boys and Girls!
 > Does anyone out there in Lamar Land know the stock injector flow rate for a
 > '90 non turbo 13B??
 > TIA
 > Tommy James<><
  >>
Nip-denso 195500-2010 injectors (for non turbo)are rated saturated at 13.0
ohms and at a test pressure of 43 psi, pulse of 6.0 ms, at a gravity wt of
0.75, flow a tested 147 to 149 cc of fuel per minute. Just got mine back from
injector service with test results!
I think max is 550; 850s are also avail.

Well lets see if I can get this right  149 cc is .03936 gallons
per minute or 2.36 gallons per hour or 545 cubic inches per hour
or 8.9 liters per hour.

550 cc .14529 gallons per minute or 8.71 gallons per hour
or 33 liters per hour. Of course I could have just multiplied
550 X 60 and got 33 liters per hour.
Is'nt the metric system wonderful?

Paul Lamar

Hey everybody.  They are approx. 470 cc./min.  Since we are all doing a
little math, consider this.  147 to 149 was quoted.  To make the math
simple let's say 150 cc./min. X 4 injectors=600 cc./min.  Times
60=36,000 cc./hr.  Specific gravity of .75 which is typical of pump gas
means 27,000 grams per hour.  Divide that by 454.5 which is grams per
pound, and you get 59.4 lbs./hr.  That means that at 100% duty cycle and
a BSFC of .5 you would only have enough fuel for 118.8 hp.!!!  If you
need an EXACT number, call Russ Collins at RC engineering.  Or try
e-mail.  His website is:http://www.rceng.com/index.htm

Very good company to do business with.

PY

The Aircraft Rotary Engine Newsletter.              Powered by Linux.

http://home.earthlink.net/~rotaryeng/            http://www.linux.org