I couldn't find anything in the search on this one so here goes. Are there any 4 hole injectors for our trucks that are stock specs and use the stock connectors. Correct me if I am wrong, but what I did get from my search results was that you have to splice the 4 hole injectors right?

 

I have these:
http://www.fiveomotorsport.com/domes...rs/?itemid=297

They fit on my 1996 5.2 without splicing, but I didn't have those small wire clips around the plastic connector on some of my connectors (lost them when taking them off) so I was getting missfires. they need to be TIGHT.

THey would not fit on my 2001 without splicing to the EV2 connectors.

Not a bad splice. i did not use solder, but i spliced them tight. It is just a pain in the *** and takes a couple hours.

I recommend these:
http://www.fiveomotorsport.com/domes...rs/?itemid=296

THey are newer stock and these look exactly like the ones that are stock.

All you need to do is get a set of these (8):
http://www.fiveomotorsport.com/elect...ors/?itemid=28

HOWEVER, I would not get these unless you plan on getting a 52MM throttle body, 1.7RRs, K&N air filter and a MSD ignition. SCT as well.

After you do those mods, you will be happy with the power and it will be a year or so before you really want to get heads and headers.

just check my sig. I am happy!!

--Dan

 

WAIT:

Here are stock spec 4 hole injectors D'OH:
http://www.fiveomotorsport.com/product-search/?v=8305

YOu will need to splice the connectors though. If your injectors have the red tabs on the connectors you are GOOD. if not, then hack them off a junkyard piece.

My honest opinion...do the 1.7s, SCT and MSD FIRST, then get the 24# injectors (actually flowing 26# with our fuel pressure). That way you have something to bump the power if you put in heads due to increased airflow.

 

Dodge did not use an EV2 connector.

It's EV1 or EV6,depending on the year.

 

Do you think 1.7's would be worth it on my engine with 180k+ miles on it?

 

How long you planning on keeping it? You'll need new valve springs with that many miles on it. It's a nice mod, but it's about $450.00 with the springs.

 

I plan on having it for at least 5 more years.

 

will the ev6 injeectors fit my stock 99 5.2? will i still have to splice the wires?

 

I believe 99 was an EV6 injector style, but check the plugs and compare to an online injector site to be sure. Not sure why you are looking to upgrade injectors though, you don't have any mods that require a bigger injector, especially on a 5.2L.

IMO it's a waste of money to upgrade injectors unless you have:
A) Known faulty injectors.
B) You have modded the engine to the point the injector cannot supply the appropriate amount of fuel to create the proper A/F ratio in the cylinder.

Web sites that show you a chart and tell you that xxx HP requires xx lbs injectors are trying to sell you injectors. I have been told by several folks that build engines that our stock injectors can support around 450 crank HP.

When the truck starts at 230HP for a 5.2L and 245HP for a 5.9L, You've got a heck of a lot of modding to do to get yourself up to 450HP.

An injector that can spray a finer mist and bettor atomize fuel should show a very small benefit in acceleration and MPG's, but IMO it's going to take at least 100,000 for the injector to pay for itself in MPG gain, and the acceleration benefit can be had (plus some) by other mods that are similarly priced.

Not to mention that if you use any injector other than the stock flow injector, you really need to pay for a tuning solution to reprogram the PCM.

There are guys on another forum I frequent that are using #24 lbs injectors on stroker motors and forced induction engines and make 600rwhp. I'll wager the injector calculators tell them they're WAY underfueled.

 

Also, keep in mind... Injectors flow rate isn't really set in stone. Unless you know what pressure, and duty cycle they rate them at, its a crap shoot. Increasing the rating pressure, or duty cycle, yields higher flow rates....

So long as your injectors can flow enough fuel for your engine, at less than 80% duty cycle, they are just fine for your application.