784 upgrade fuel injectors
Thread Starter
CF Veteran
Joined: Jan 2009
Posts: 1,964
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From: Baltimore, Maryland
Year: 1994 1993
Model: Cherokee
Engine: 4.0
Originally Posted by Defiance665;1302300[URL
http://www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&vxp=mtr&item=320784238788[/URL] Theyre closer to renix flow... 18.6lb stock.
Thread Starter
CF Veteran
Joined: Jan 2009
Posts: 1,964
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From: Baltimore, Maryland
Year: 1994 1993
Model: Cherokee
Engine: 4.0
But in general terms the blue Ford 715's and 849's are considered the next step "up" flow wise of the standard "upgrade" injectors. (i.e. above the Neon 703's and 784's)
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Joined: Nov 2009
Posts: 15,197
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From: Aberdeen, MD
Year: 1995
Model: Cherokee
Engine: 4.0L HO I-6, 703 Injectors, Brown Dog Super Engine Mounts
Thread Starter
CF Veteran
Joined: Jan 2009
Posts: 1,964
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From: Baltimore, Maryland
Year: 1994 1993
Model: Cherokee
Engine: 4.0
Odd. How is it running in general as far as idle, start up and throttle response? That might give me a clue. I can't say what you may have done wrong, if anything. Make sure you did'nt forget to reconnect any lines or wires you may have disconnected in the swap process.
Thread Starter
CF Veteran
Joined: Jan 2009
Posts: 1,964
Likes: 6
From: Baltimore, Maryland
Year: 1994 1993
Model: Cherokee
Engine: 4.0
The main advantages are you get a smoother idle and an increase in throttle response and acceleration due to the 4-port design. MPG can increase for someone who has dirty older injectors but if your injectors aren't overly fouled or if you have an additional problem just swapping injectors probably won't help your MPG. PM sent with PayPal info.
CF Veteran

Joined: Nov 2008
Posts: 1,350
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From: Stokesdale, NC
Year: 89XJ,98ZJ,72K10, 06 Tundra..
Model: Cherokee
Engine: 4.0
Should the buyers of these injectors be flashing the ECU like we do when putting on a bored throttle body? That might be causing some problems .....
Thread Starter
CF Veteran
Joined: Jan 2009
Posts: 1,964
Likes: 6
From: Baltimore, Maryland
Year: 1994 1993
Model: Cherokee
Engine: 4.0
Elaborate. Do you mean might be causing some problems if the DO or if they DON'T? Normally I tell everyone they need to reset the computer when they swap injectors.
Thread Starter
CF Veteran
Joined: Jan 2009
Posts: 1,964
Likes: 6
From: Baltimore, Maryland
Year: 1994 1993
Model: Cherokee
Engine: 4.0
. I have a hard time connecting peoples Cherokee Forum names with the e-mails that show up with the PayPal payments. If you are in Sanford, MI I got them out so you should get them Tues or Wed.


