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  #1  
Old December 30th, 2017, 09:10
DarkoShadow DarkoShadow is offline
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1989 Renix Injector swap

Currently have a mostly stock 1989 Cherokee, about 205,000 miles on it with AX15 behind it. Wanting to upgrade injectors to 4 hole. All research if found says to get part # 0280155703 - but with different flow rate? Would these work?
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Old December 30th, 2017, 12:09
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MACH90XJ MACH90XJ is offline
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Re: 1989 Renix Injector swap

See post #2 for specs.

http://www.naxja.org/forum/showthread.php?t=1145655
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Old December 31st, 2017, 08:10
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Hypoid Hypoid is offline
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Re: 1989 Renix Injector swap

Quote:
Originally Posted by MACH90XJ View Post
Kink from that same post: http://www.fuelinjector.citymaker.co...low_Rates.html

I used the 19 lb/hr injectors in my RENIX Jeep after one of the stock injectors developed an external leak.
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Old January 1st, 2018, 19:38
DarkoShadow DarkoShadow is offline
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Re: 1989 Renix Injector swap

If I use Bosch 0280155703 :

Is it too much fuel?
Too high pressure rating?
Will the piston get hot spots that will eventually blow the rings?

Has anyone put these in an 89' ?
I search for upgraded injectors and find websites that say these are the ones I need, but when looking to buy, they say to use 710's instead.

Last edited by DarkoShadow; January 1st, 2018 at 19:46.
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Old January 1st, 2018, 20:47
DarkoShadow DarkoShadow is offline
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Re: 1989 Renix Injector swap

This is one site that says to use the 703's...

https://thexjguys.wordpress.com/tag/703/
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Old January 1st, 2018, 22:32
DarkoShadow DarkoShadow is offline
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Re: 1989 Renix Injector swap

Ok, think I found enough info to try this all out. I'll comment back once if installed an run a tank or 2.

Last edited by DarkoShadow; January 1st, 2018 at 22:35.
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Old January 4th, 2018, 19:52
Dv_OFP Dv_OFP is offline
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Re: 1989 Renix Injector swap

I just installed some today in my 90. I installed 746s that i got form a guy on another forum.
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Old January 4th, 2018, 20:42
trippled trippled is offline
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Re: 1989 Renix Injector swap

Quote:
Originally Posted by DarkoShadow View Post
If I use Bosch 0280155703 :

Is it too much fuel?
Too high pressure rating?
Will the piston get hot spots that will eventually blow the rings?

Has anyone put these in an 89' ?
I search for upgraded injectors and find websites that say these are the ones I need, but when looking to buy, they say to use 710's instead.
I haven't done a swap but, most injectors are rated for a flow rate at a particular pressure. IIRC there are conversion charts for finding the flow rate at a given pressure. Hope that helps for your pressure rating question.
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  #9  
Old January 5th, 2018, 19:40
DarkoShadow DarkoShadow is offline
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Re: 1989 Renix Injector swap

Found this for others wanting to swap injectores...

https://www.google.com/search?q=inje...raseYNiC-zzQM:

Last edited by DarkoShadow; January 5th, 2018 at 19:47.
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