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Injectors

4K views 12 replies 5 participants last post by  Axeman82 
#1 ·
I was just wondering, when i am rebuilding my 3.9LMPFI motor, would it be worth replacing the injectors, or just getting them serviced? I am doing this work on my motor so it is reliable to start and run from then on, so I wanna make sure every part is good to go.

Thanks for your replies....
 
#2 ·
A decent workshop should be able to tell you the current flow rates of the injectors and how much they will ''clean up'', you might find some will cleanup OK and some won't and you will have to replace them anyway and if you have to replace 2 or more, it ends up cheaper to get a new set, Repco do reco injectors, I paid about $180 for a reco set but actually received a new set because Repoce were just starting the service at the time.

I think normal price for a reco Repco set is around $230 C/O.

Kieron
 
#3 ·
$230? I spose i mite do that, but i think i'll give them a test and clean up first. Expected them to be pretty pricey!
 
#6 ·
KC Laser, GC Meteor 85-87 (VAF) 210=290 kpa. 95 ltr/h 5.5 cc/min.
KE Laser, 87-90 (VAF) 220=300 kpa. 120 ltr/h 6.2 cc/min.
KF/KH (VAF) 250=300 kpa. 110 ltr/h 5.8 cc/min
Capri SOHC 89-90 (VAF) 240=300 kpa. 110 ltr/h 5.8-7 cc/min
Capri DOHC TURBO (VAF) 250=300 kpa. 100 ltr/h 6.8 cc/min
Corsair UA 2L 89-92 (H W) 250=300 kpa. 120 ltr/h 6.2 cc/min
Corsair UA 2.4L 89-92 (H W) 250=300 kpa. 120 ltr/h 7.2-8 cc/min
AT Telstar 87-89,AT-AV TX5 87-90 (VAF) 250=280 kpa. 90 ltr/h 5.2-6.5 cc/min
XE Falcon, XK Fairlane,FD LTD 83-84 (VAF) 200=250 kpa.110 ltr/h 10-15cc/min
XF Falcon, ZL Fairlane, FE LTD 84-88(VAF) 200=250 kpa. 110 ltr/h 10-15cc/min
EA,EB Falcon, NA,NC Fairlane,DA,DC (MAP) 200=250 kpa. 90/100 ltr/h 11cc/min
EA Falcon (T/Body injection) 89 (MAP) 100 kpa. only! 80/90 ltr/h 10-12 cc/min
EF Ford 6 cyl. ext. manifold. (MAP) 250=300 kpa. 130 ltr/h 11-14 cc/min
Bronco 5.0 ltr. V8 (MAP) 250=300 kpa. 125/140 ltr/h 15-18 cc/min
Bronco 5.8 ltr. V8 (MAP) 250=300 kpa. 130 ltr/h 18-20 cc/min
Fairlane ED, FE, NA Multi (MAP) 250=280 kpa. 120 ltr/h 11-12 cc/min
Fairlane NA CFI (MAP) 100 kpa. 70-80 ltr/h 11cc/min
Fairmont EF 6 Cyl. 1994 (MAP) 250=300 kpa. 130 ltr/h 11-14 cc/min
Fairmont EF 8 Cyl. 1994 (MAP) 250=300 kpa. 135 ltr/h 15-18 cc/min
Fairmont Ghia V8 5.0rtr. 1994 (MAP) 250=300 kpa. 135 ltr/h 15-18 cc/min
Fairmont Ghia 6 Cyl. 1994 (MAP) 250=300 kpa. 120 ltr/h 11 cc/min
Falcon EA CFI 3.2ltr. (MAP) 100 kpa. 70-80 ltr/h 11 cc/min
Falcon EA CFI 3.9ltr (MAP) 100 kpa. 70-80 ltr/h 11-12 cc/min
Falcon EA Multipoint (MAP) 200=250 kpa. 90/100 ltr/h 11cc/min
Falcon EB series 2 (MAP) 225=280 kpa. 130/140 ltr/h 10-11cc/min
Falcon EB CFI (MAP) 100 kpa. 70-80 ltr/h 11cc/min
Falcon EB Multipoint (MAP) 225=280 kpa. 130-140 ltr/h 10-11cc/min | Case History |
Falcon EB V8 (MAP) 250=300 kpa. 135 ltr/h 14-16 cc/min
Falcon ED 4.0ltr. Multipont (MAP) 250=280 kpa. 120 ltr/h 11-12 cc/min
Falcon ED 5.0ltr. SEFI (MAP) 250=290 kpa. 134/140 ltr/h 14-16 cc/min
Falcon XR 6 cyl. (MAP) 250=300 kpa. 115/120 ltr/h 10-11 cc/min
Falcon XR 8 cyl. (MAP) 240=290 kpa. 120 ltr/h 16-18 cc/min
Falcon EF 6 cyl.. (MAP) 250=300 kpa. 130 ltr/h 11-14 cc/min
Falcon EF 8 cyl.. (MAP) 240=290 kpa. 120 ltr/h 16 cc/min
Falcon EF XR 6 cyl.. (MAP) 250=300 kpa. 130 ltr/h 11 cc/min
Falcon EF XR 8 cyl.. (MAP) 250=300 kpa. 130 ltr/h 14-15 cc/min
Falcon XE. (MAP) 250=300 kpa. 130 ltr/h 11-14 cc/min
Falcon XF EST (MAP) 240=290 kpa. 120 ltr/h 10-11 cc/min
Falcon XF Leaded (MAP) 220=280 kpa. 110 ltr/h 11-15 cc/min
Falcon XF Unleaded (MAP) 220=380 kpa. 120 ltr/h 11-15 cc/min

If that helps anyone..

Dan..
 
#9 ·
Thanks for all that info. That will come in handy for so many people.
 
#11 ·
Yeah I don't care what u do with it - I stole it from another site anyways

Interject website - has flow rates for Alfa Romeo, Audi, BMW, Citroen, Daimler, Daihatsu, Daewoo, Eunus, Ferrari, Ford, Fiat, Hyundai, Holden, Honda, Jaguar, JAP Imports, Lotus, Massarati, Mazda, Mitsubishi, Mercedes, Nissan, Porsche, Peugeot, Proton, Rover, Renault, Rambler, Rolls Royce, Saab, Subaru, Seat, Skoda, Suzuki, Toyota, Volvo, and VW..

http://www.users.bigpond.com/INTERJECT/MEMBERS.HTM

It's a good site.. Just stumbled upon it one day...

Dan..
 
#13 ·
I think *I may be wrong here* but what you are asking is different to what the above figures are.. The XE injectors may be rated at 20.7lbs/hr but fitted and working on the car they flow much less due to not being open all the time..

Here's some websites that have some good info on flow rates and injectors..

http://www.rceng.com/technical.htm

http://www.edelbrock.com/automotive/math.html

The Edelbrock one is really good even if it is all in imperial..

Dan..
 
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