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injector questions

Posted: March 17th, 2013, 11:26 am
by moparich
just finished my stroker build for my 96 grand Cherokee

will the ford 24lb injectors work with my 96 truck? if so could i get some detail for injector purchase

Re: injector questions

Posted: March 17th, 2013, 12:10 pm
by Cheromaniac
They'll probably work fine but that'll depend on the specs of your stroker build.

Re: injector questions

Posted: March 17th, 2013, 1:29 pm
by moparich
thanks,

i found some 24lb inj specific for the 96-98 cherokee's.

i built a poorman stroker mild cam, mild headwork. im using my stock ecu so i now am looking into the map adjusters.

Re: injector questions

Posted: March 17th, 2013, 2:13 pm
by moparich
ok so i was doing some looking and my stock injectors flow 23.7lbs/hr.with my poor man stroker should i be stepping up to 27lb/hr inj?and with that do i have to use a map adjuster?

Re: injector questions

Posted: March 17th, 2013, 5:28 pm
by SilverXJ
27 will be a bit large. Find an injector that flows 24 on the rail. What is the pressure on a 96 ZJ?

Re: injector questions

Posted: March 17th, 2013, 5:42 pm
by moparich
OIC

these inj Bosch 0280155715 will flow 24lbs/hr @ 43psi. my stock fuel system should be 41-43psi

do you think i will still need to do the adj map mod

Re: injector questions

Posted: March 18th, 2013, 6:21 am
by Cheromaniac
moparich wrote:thanks,

i found some 24lb inj specific for the 96-98 cherokee's.

i built a poorman stroker mild cam, mild headwork. im using my stock ecu so i now am looking into the map adjusters.
Your stock injectors flow 23.3lb/hr so they're already pretty close. You might only need a MAP adjuster to fine tune the fuelling.

Re: injector questions

Posted: March 18th, 2013, 4:22 pm
by FlyinRyan
Don't count out PCM re-mapping. I have a known good tune for a mild 4.6 on mild 24's. I very much get trying to do things on a budget but retuning the stock ECU through reprogramming is well worth it.

Re: injector questions

Posted: March 18th, 2013, 4:49 pm
by moparich
just sent you an email