DEVILSTOY

i have herd that running 24 pound mustang injectors (the ones with the 4 hole spray pattern) and putting in a throttle body spacer and boreing my throttle body to 60/62mm is supposed to be a big improovment , has anyone personally done this ? i have a spare throttle body i can send out to get bored and i already have the spacer , my budy has injectors i need but i wanna know if its worth it before i spend the time and money for the injectors

ZachsXJ

A: use the search function.
B: https://www.cherokeeforum.com/f2/mor...estions-13848/

If you want 4 Neon injectors I actually have some that I don't need. You'll need to buy more off ebay, but they're not ridiculously expensive

https://www.cherokeeforum.com/f11/do...de-30-a-30081/

DEVILSTOY

hmm interesting , my buddy has a set of the mustang injectors i need for 100 bucks , and i didnt know about the neon injectors , i have a few buddies real big into neons that might have some of those , wich ones would be the better ones to go with?

JSwamper

http://www.lunghd.com/Tech_Articles/...r_Upgrades.htm

JSwamper

24 lbs are for 4.0 stroker egines ONLY,, according to that site

he has a formula also,

horsepower / 12 = injector size(make sure to get 4 hole)

ZachsXJ

Go with the ones that are exactly the same as the ones I'm selling. You can get 8 neon injectors for cheaper than your buddy is selling his mustang ones. Read the thread I posted a link to. I'd be using the Neon injectors but I got a steal on some #19 Mustang injectors that were run for all of 3 months on an XJ after being purpose bought brand new for it. #24 Mustang injectors are overkill for anything but a stroker 4.0

DEVILSTOY

that thread is kinda confusing to keep track with wich ones i actually need , if i went with mustangs would i need the 19 or 24 ? mines not a stroker motor but how would i know if its an ho motor ?? its a 97 cherokee sport , like i said my buddy has all kinds of neon parts so if he has ill be able to get them for free , but he dont im gonna have to make a decision on wich ones to buy , like i said my other buddy has the mustang 24's but now im not even sure if thats the correct ones to go with, wow im so confused now

JSwamper

mustang 19lbs injectors, or the neons 19lbs if you can get them,

I cant help you about the HO problem?.?.

Dont take my word,, do some more research

ZachsXJ

the 24s are too big. if you're gonna get mustang injectors then get #19s If you're getting Neon Injectors they need to have these part numbers on the side: when looking at from the plug side, on the left 5277739 and on the right side 0 280 155 703

You have a HO motor. In 91 the XJs changed from the regular 4.0 to the HO motor so they badged them as such because it had a more powerful motor. Starting in 97(I believe) when they did the facelift they just put regular 4.0 badging on them even though it was still technically the HO motor. By 97 all the 4.0s used in every Jeep were HO so it didn't matter to advertise it.

4.3L XJ

Here is the part number you want to use. Ford 0280155710

Here is a website that has them. http://www.fiveomotorsport.com/Injector_SetsJEEP.asp

ZachsXJ

Don't go there, unless you feel like dropping big $$$ for brand new injectors. A waste in my opinion. Fuel injectors are very very simple and don't go bad unless they get clogged or have varnish build up. You're better off spending 1/4th of what they want for new ones and getting take-offs from ebay.

DEVILSTOY

so in a conclusion i do have a ho motor but i do not want the 24lb injectors , i want either the ford or neon 19lb ones ? as long as they have the 4 hole spray pattern correct ?

ZachsXJ

Close, you do have a HO motor. and if you get mustang injectors get the #19 ones. If you're getting Neon injectors use the part numbers(p/n) I posted before to match up and make sure you're getting the right injectors. different injectors flow different amounts of fuel so you want to make sure you get the right ones

DEVILSTOY

ok cool , im waiting for my buddy to rumage thru his garage to see if hes still got those neon ones , he had atleast 5 neons and tons of parts at one time but he got rid of a bunch of stuff so im hopeing hes still got some injectors

ZachsXJ

yeah, if he has the Neon ones make sure they have the right part number on them.