Fuel injector upgrade

[FirstTimeJeeper]

I did a search but didn't see anything- so here it goes, I did the DEI Heat shield kit this past weekend and of course, once I had the injectors out, they looked like poo. Cleaned them up and put them back in with fresh seals, but was upset with myself for not anticipating this and having a new set of injectors ready to swap out. That being said, I started doing some research, and saw that most people STRESS that it's best to stay with Mopar injectors and not 3rd party ones (hence why I didn't just run up to Autozone and grab a set), BUT- I did come across the XJ guys doing injector swaps on the 4.0 with a Dodge Neon part vs. the Jeep part. The Neon part has a 4 point atomizer as opposed to the single point in the jeep. They claim it to be a bit "peppier" and some minor improved MPG because of better fuel burn.

Question here is- Has anyone done this with their TJ here? Any issues if so, or just stick with the Mopar injectors for the Jeep?

Thanks!

 

[JustDandee]

Local guy to me that sells injectors for 4.0

dyno video.


Injector comparison-


With that said I would not proactively chase the gains of a 4 hole but if I was replacing them anyway, I would do it.

 

[TheBoogieman]

Bosch.

 

[lowell66dart]

Very interesting. Any part numbers for the Neon 4 port. Want to dig into this a bit as my engine has 178,000 miles on it and I don't know the history of it as far as the injectors are concerned.

 

[JustDandee]

Should add that guys link- rebuilt Bosch is what he does.

https://www.ksuspensionfab.com/store/p8/Remanufactured:_4_Port_Upgraded_Fuel_Injectors_XJ/MJ.html#/

 

[jjvw]

Mine has had Neon 4 ports for nearly 10 years and maybe 130k miles. There have been no known problems with them. And no known benefits either.

The XJ guys are fixing small vacuum leaks with new o-rings and are attributing the return to a properly running engine from a normal $5 fix with the excitement of non-stock injectors.

 

[Chris]

Mine has had Neon 4 ports for nearly 10 years and maybe 130k miles. There have been no known problems with them. And no known benefits either.

The XJ guys are fixing small vacuum leaks with new o-rings and are attributing the return to a properly running engine from a normal $5 fix with the excitement of non-stock injectors.

X2 to this

4-hole fuel injectors aren't going to "atomize" the fuel any better on an engine that has more in common with a tractor than it does with an F1 engine.

 

[glowell222]

Very interesting. Any part numbers for the Neon 4 port. Want to dig into this a bit as my engine has 178,000 miles on it and I don't know the history of it as far as the injectors are concerned.

My injectors have 324k miles on them so far with no issues. I pulled, cleaned, and tested the injectors and replaced the o-rings about 50k miles ago because I was bored one weekend. It hasn't made a difference as far as I can tell.

 

[macleanflood]

I ordered a rebuilt and balanced set of Siemens for my 97 from Precision Auto Injector.

 

[astjp2]

I did a search but didn't see anything- so here it goes, I did the DEI Heat shield kit this past weekend and of course, once I had the injectors out, they looked like poo. Cleaned them up and put them back in with fresh seals, but was upset with myself for not anticipating this and having a new set of injectors ready to swap out. That being said, I started doing some research, and saw that most people STRESS that it's best to stay with Mopar injectors and not 3rd party ones (hence why I didn't just run up to Autozone and grab a set), BUT- I did come across the XJ guys doing injector swaps on the 4.0 with a Dodge Neon part vs. the Jeep part. The Neon part has a 4 point atomizer as opposed to the single point in the jeep. They claim it to be a bit "peppier" and some minor improved MPG because of better fuel burn.

Question here is- Has anyone done this with their TJ here? Any issues if so, or just stick with the Mopar injectors for the Jeep?

Thanks!

The whole 4 hole injector is negligible at anything above idle, as soon as the gasoline hits the hot intake valve it atomizes the fuel. Shit a carburetor just dumps fuel fuel and the make the same power as injection at wot. Denso is the same spec for gm/dodge and ford, aem is the same for all their spec injectors, just need a reliable source.