Fuel injector swap/upgrade
#1
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Fuel injector swap/upgrade
So, I'm beginning a ring job on my Renix 4.0. I get my manifolds off and notice that I have 3 different injectors in there... 4 are the same and look pretty good, the other two are slightly different from the rest and don't look as good.
My question is, what is the community's opinion as to the best injectors for a stock Renix? Does anyone have any info on junkyard parts candidates? I remember seeing a thread about junkyard injectors but I can't seem to find it.
My question is, what is the community's opinion as to the best injectors for a stock Renix? Does anyone have any info on junkyard parts candidates? I remember seeing a thread about junkyard injectors but I can't seem to find it.
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Year: 1994 1993
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So, I'm beginning a ring job on my Renix 4.0. I get my manifolds off and notice that I have 3 different injectors in there... 4 are the same and look pretty good, the other two are slightly different from the rest and don't look as good....My question is, what is the community's opinion as to the best injectors for a stock Renix? Does anyone have any info on junkyard parts candidates? I remember seeing a thread about junkyard injectors but I can't seem to find it.
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If I can get better performance out of those, and get them at the jy, I'd certainly love to do that. I just really want a well working, matching set. And would really love to avoid buying new ones at the parts store. I had never priced them until today. My jaw dropped... I thought they'd be no more than $100 for a full set.
Thanks for the info! I'll post back tomorrow what the three types were.
Thanks for the info! I'll post back tomorrow what the three types were.
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Alternatively if you want a re-manufactured flow-matched set there are many sellers on e-bay that have them. Most of these come from 80s-90s Ford vehicles (5.0L V8, 3.8L V6, etc.), they are the same style, connector, and flow rate as the Jeep injectors but are 4-hole vs. the 1-hole OE injectors allowing for better fuel-atomization (and a claimed increase in throttle response).
Here are some examples:
http://www.ebay.com/itm/4-0-4-0L-Jeep-Cherokee-Fuel-Injectors-4-Hole-Bosch-Upgrade-Flow-Matched-87-95-/181174009930?pt=Motors_Car_Truck_Parts_Accessories&fits=Year%3A1990%7CMake%3AJeep%7CModel%3ACherokee&hash=item2a2ed0004a&vxp=mtrhttp://www.ebay.com/itm/Set-of-6-OEM-Replacement-Fuel-Injectors-Many-Applications-/271233719747?pt=Motors_Car_Truck_Parts_Accessories&fits=Year%3A1990%7CMake%3AJeep%7CModel%3ACherokee&hash=item3f26ca1dc3&vxp=mtrhttp://www.ebay.com/itm/Upgrade-ASNU-Rebuilt-1987-1995-Jeep-Cherokee-4-0L-Set-of-6-Fuel-Injectors-/281126393818?pt=Motors_Car_Truck_Parts_Accessories&fits=Year%3A1990%7CMake%3AJeep%7CModel%3ACherokee&hash=item41747057da&vxp=mtr
Here are some examples:
http://www.ebay.com/itm/4-0-4-0L-Jeep-Cherokee-Fuel-Injectors-4-Hole-Bosch-Upgrade-Flow-Matched-87-95-/181174009930?pt=Motors_Car_Truck_Parts_Accessories&fits=Year%3A1990%7CMake%3AJeep%7CModel%3ACherokee&hash=item2a2ed0004a&vxp=mtrhttp://www.ebay.com/itm/Set-of-6-OEM-Replacement-Fuel-Injectors-Many-Applications-/271233719747?pt=Motors_Car_Truck_Parts_Accessories&fits=Year%3A1990%7CMake%3AJeep%7CModel%3ACherokee&hash=item3f26ca1dc3&vxp=mtrhttp://www.ebay.com/itm/Upgrade-ASNU-Rebuilt-1987-1995-Jeep-Cherokee-4-0L-Set-of-6-Fuel-Injectors-/281126393818?pt=Motors_Car_Truck_Parts_Accessories&fits=Year%3A1990%7CMake%3AJeep%7CModel%3ACherokee&hash=item41747057da&vxp=mtr
Last edited by dmill89; 07-13-2013 at 09:51 PM.
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https://www.cherokeeforum.com/f67/in...-88-xj-145110/
see the chart in norcaljeep's post, 5th down the page.
see the chart in norcaljeep's post, 5th down the page.
#6
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Year: 1989 xj sport 2dr
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Engine: 12 hole bosch Injectors
Volvo 746...Step better than 703s. https://www.cherokeeforum.com/f2/199...r-swap-163105/
Last edited by freegdr; 07-14-2013 at 01:07 AM.
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#12
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Year: 1989 xj sport 2dr
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Engine: 12 hole bosch Injectors
Yes Ive not had a chance for a long run yet but deff smoother Idle from 703s as smooth as it was and a noticeable mpg increase on last job I was working used less gas going same route each day as when I had 703s.
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Year: 1995
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