Replacement Fuel Injector recommendations needed
I think it's time to replace my fuel injectors and am looking for recommendations from everyone. Now I don't want to spend $90 apiece for them, but I also need quality. I am currently running 22lb hr @3 bar injectors and have had my B&G Flash designed for those so I want to stay at that size. Any recommendations/vendors you can provide would be helpful.
Thanks,
Thanks,
Which injectors are you running now. Stock are 23.2lb/hr @ 49 psi. I run Accels,but a lot of guys prefer the Ford (FMS) injectors. When you buy injectors, you have to keep in mind the fuel pressure that they are rated at. For example a FMS 21 lb injector is rated 21lbs @ 39.5 psi. Our trucks run 49psi so the actual flow would be 23.4 lb/hr. The Accels show flow ratings based on 42.5 psi.
The formula is:
(the square root of- new pressure/old pressure) x (the flow rating of the injector at the old pressure)= actual flow rating
The formula is:
(the square root of- new pressure/old pressure) x (the flow rating of the injector at the old pressure)= actual flow rating
some volunteers have compiled lists of factory fuel injectors and posted them on the internet:
http://users.erols.com/srweiss/tableifc.htm
some independent test work on 5.7 and 6.1 injectors:
http://tinyurl.com/2ybrnm
In EPA tests paid with your tax dollars several years ago
the Holley injectors were found to have the best spray pattern and droplet size of any tested:
http://www.jegs.com/webapp/wcs/store...46392_-1_10299
official Chrysler info from an old issue of the magazine Mopar Performance News:
begin quote:
"I read the following from the Q&A section of the April 2001 Mopar
Performance News:
Q(5) I'm working on a fuel-injected combination and my dyno program
shows I could benefit from more injector delivery. What can you tell me
about flow rates of the injectors in your catalog? Also, if you have
the factory injector rates would be very helpful.
A(5) You should step up the injectors in something like only 25 percent
increments. The production V-8 is 24 - the MPP package is 30! Remember
that you must change the computer if you change the injectors; at the
least, it must be reprogrammed with the new injector values. Injector
rates are not as easy as one might think, but they go something like
this:
Engine Years Flow rate in lb/hr
Neon ( All) 23.9
2.5 Magnum 91-95 17.4
2.5 Magnum 96-01 23.2
4.0 Jeep 91-95 21.4 (Equivalent to Lucas 5207013 )
4.0 Jeep 96-01 23.2 (Equivalent to Lucas 5208005 )
5.2 Magnum 92-95 18.2
5.2 Magnum 96-01 23.2
5.9 Magnum 93-95 24.5
5.9 Magnum 96-01 23.2 (Seimens/Chrysler P/N 53030778)
---end quote---
Note that about 1996,
when the engine PCM computers went to the OBD-II standard,
all the Dodge fuel injectors went to a 'common calibration' of 23.2 lb/hour.
There is another article about different makes of fuel injectors I
read at:
http://web.archive.org/web/200106101...ectioninfo.htm
If you have a modified 1996+ Magnum engine and you feel you need to 'bump up'
the fuel injectors just a bit, the model year 1993-1995 5.9V8 fuel injectors
are about 6% larger at 24.5 versus 23.2, and Neon injectors are 3% bigger.
http://users.erols.com/srweiss/tableifc.htm
some independent test work on 5.7 and 6.1 injectors:
http://tinyurl.com/2ybrnm
In EPA tests paid with your tax dollars several years ago
the Holley injectors were found to have the best spray pattern and droplet size of any tested:
http://www.jegs.com/webapp/wcs/store...46392_-1_10299
official Chrysler info from an old issue of the magazine Mopar Performance News:
begin quote:
"I read the following from the Q&A section of the April 2001 Mopar
Performance News:
Q(5) I'm working on a fuel-injected combination and my dyno program
shows I could benefit from more injector delivery. What can you tell me
about flow rates of the injectors in your catalog? Also, if you have
the factory injector rates would be very helpful.
A(5) You should step up the injectors in something like only 25 percent
increments. The production V-8 is 24 - the MPP package is 30! Remember
that you must change the computer if you change the injectors; at the
least, it must be reprogrammed with the new injector values. Injector
rates are not as easy as one might think, but they go something like
this:
Engine Years Flow rate in lb/hr
Neon ( All) 23.9
2.5 Magnum 91-95 17.4
2.5 Magnum 96-01 23.2
4.0 Jeep 91-95 21.4 (Equivalent to Lucas 5207013 )
4.0 Jeep 96-01 23.2 (Equivalent to Lucas 5208005 )
5.2 Magnum 92-95 18.2
5.2 Magnum 96-01 23.2
5.9 Magnum 93-95 24.5
5.9 Magnum 96-01 23.2 (Seimens/Chrysler P/N 53030778)
---end quote---
Note that about 1996,
when the engine PCM computers went to the OBD-II standard,
all the Dodge fuel injectors went to a 'common calibration' of 23.2 lb/hour.
There is another article about different makes of fuel injectors I
read at:
http://web.archive.org/web/200106101...ectioninfo.htm
If you have a modified 1996+ Magnum engine and you feel you need to 'bump up'
the fuel injectors just a bit, the model year 1993-1995 5.9V8 fuel injectors
are about 6% larger at 24.5 versus 23.2, and Neon injectors are 3% bigger.
One more thing that may help, depending on which injectors you get, youmay need to get ev1 to ev6 adaptors.
Like these:
http://cgi.ebay.com/ebaymotors/EV1-t...QQcmdZViewItem
Like these:
http://cgi.ebay.com/ebaymotors/EV1-t...QQcmdZViewItem




