I'm tuning the engine, it's a 13 BREW (92 twin turbo) that I'm
running as normally aspirated. I think I might need to reduce
the injector rate on Tracy's EC2, since his factory setting is
for the normally aspirated injectors. On the normally aspirated
engine, both primary and secondary injectors have the same flow
rating. I found that my injectors are 28 lbs for the primary,
and 40 lbs for the secondary. Does anyone know what a normally
aspirated 13 B,  say a 1988 engine has for factory injectors?

I'm finding that I'm running rich, I can't seem to lean out the
setting enough in mode 1,  and might need to change the
injection rate in Mode 3 on Tracy's controller.



Brian Trubee
RV-4 1992 13 BREW.


Hi Brian;
Here is an old post on fuel injectors and connectors:

Note that some injectors carry the same part number as others but plug
styles and resistances can vary.
Low impedance refers to 2-3? ohms, high impedance refers to 12-14? ohms.

Year   type   impedance plugStyle plugNotchPosition  flowRating color
partNumber  Notes

84-85  13B NT low       square    center             680cc      orange
195500-0900
86-87  13B NT low       square    center             460cc      red
195500-1350
86-87  13B T  low       square    center             550cc      tan
195500-1370
88     13B NT high      square    offset             460cc      purple
195500-1350
88     13B T  high      square    offset             550cc      purple
195500-1370
89-91  13B NT high      oval      center             460cc      red
195500-2010
89-91  13B T  high      oval      center             550cc      purple
195500-2020
?      20B T  high      oval      center             550cc      purple
195500-2240 20B Primary

MSD-2400 will fit the square center connectors -
http://store.summitracing.com/partdetail.asp?part=MSD%2D2400
http://www.fiveomotorsport.com/Injector_CONNECT.asp - see the
*NipponDenso* - fit the oval connectors.
Oval NipponDenso connectors for the "Toyota 22RE, S3-FE, 4A-GE" engines
look different but also fit.

Other FI sources:
AC Delco PT425 (GM dealer 12116252) - discontinued - will supposedly fit
oval center connectors.
NAPA  Echlin 2-18457
http://www.rx7.com/store/rx7/fcfuel.html
Also possibly:
 BMW 6113-1358-330,
 GP Sorenson part 800-9416
 Standard Ignition Corp. SK-25

Cheers
Cary