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Unread 04-20-2006, 08:17 PM   #1
BeerMonkeY
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Ford injectors in 4.0????????

i read where some one put ford injectors in a 4.0 (dont remember from what engine) and it runs better cause the ford atomizes(sp?) the fuel better and has a better spray pattern than the stock ones. anyone ever heard of this

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Unread 04-21-2006, 08:39 AM   #2
75SV1
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They use the 5.0 injectors (Bosch). Try Five-O Motorsports of Hyperjective. Might also look at Dinos site.
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Unread 04-21-2006, 11:10 AM   #3
strokinout
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Most people do this when they are in the process of stroking a 4.0L because of the increased demand for fuel.
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Unread 04-21-2006, 11:39 AM   #4
75SV1
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Quote:
Originally Posted by strokinout
Most people do this when they are in the process of stroking a 4.0L because of the increased demand for fuel.
They use the 24-24 lbs-hr injectors for the Strokers. He should use 18-19 lbs-hr injectors for a Stock motor.
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Unread 04-21-2006, 11:51 AM   #5
strokinout
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Quote:
Originally Posted by 75SV1
They use the 24-24 lbs-hr injectors for the Strokers. He should use 18-19 lbs-hr injectors for a Stock motor.
Tom

Yeah, I just read your thread about the grooves in the squish area. VERY interesting. If I ever find the time, I will prolly end up giving this a try. What could it hurt, anyway.(ritorical)
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Unread 04-21-2006, 12:05 PM   #6
75SV1
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I looked at the MPG website a bit. I saw a simple mod on spark plugs. You need copper electrode spark plugs. You cup out the electrodes and drill a hole through the metal arm (is that anode). I need to get me Jeep running. Both my Contours take Platinum plugs. I might try the cuts latter on too. Looks easy.
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Unread 04-21-2006, 12:38 PM   #7
strokinout
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I never would have thought somethin' so easy would produce those kind of results. Thanks for the link to the site.
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Unread 04-21-2006, 01:15 PM   #8
75SV1
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I'd have some bit of skeptisism though. Still, the spark plugs would be worth a try. Also, if you can change stuff back or make sure you use the same seasonal fuel and from the same station. I've noticed 2-3 mpg from different gas.
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Unread 04-21-2006, 06:06 PM   #9
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Bruce is always good to deal with at 5-0...

I ran some FMS injectors in my supercharged Dodge 5.9L...

they do make direct replacement injectors for the Jeep:

http://www.fiveomotorsport.com/Injector_SetsJEEP.asp

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Unread 04-24-2006, 07:25 PM   #10
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You don't have to use Ford specific injectors. You can use Bosch, Holley, or Accel injectors, choosing whatever size best suits your needs.

BTW, if you need big injectors, you can use old turbo T-bird or Cougar injectors, which are rated at 36 lbs/hr. You can find these for next to nothing in junkyards everywhere.
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Unread 04-27-2006, 07:21 AM   #11
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A lot of time when these high lb injectors are used, the motor will run slightly rich, so there is a mod where you build a small circuit that attaches inline with the MAP sensor to be able to adjust the input voltage to the MAP sensor, thereby allowing you to adjust the pulse length of the injectors. There are a few write ups, do a search for adjustable MAP sensor, or electrical mods, I built one, haven't installed it yet, if anyone wants me to make them one for a small small fee, PM me.
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Unread 05-06-2006, 09:50 AM   #12
Dirty Grand
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Quote:
Originally Posted by 75SV1
They use the 24-24 lbs-hr injectors for the Strokers. He should use 18-19 lbs-hr injectors for a Stock motor.
Tom
If you have 21# injectors in a '95, and if he has a '97, he would have 23#, why would you want to go with 18-19#? Wouldn't it be better to use the 24#? If not, what if you were to change the cam, would that change things?

Last edited by Dirty Grand; 05-07-2006 at 08:33 PM..
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Unread 05-09-2006, 11:20 AM   #13
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I run the 24# FMS injectors in my stroker and they seem to be fine so far.

Need to pull the plugs and look to see if it is running lean/rich still though.
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