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-   24 Valve 2nd Gen Dodge Cummins 98.5-02 (https://www.dieselbombers.com/24-valve-2nd-gen-dodge-cummins-98-5-02/)
-   -   Injectors are in.... (https://www.dieselbombers.com/24-valve-2nd-gen-dodge-cummins-98-5-02/83406-injectors.html)

empty wallet 09-21-2011 12:37 PM

Injectors are in....
 
Got em put in today, power is great... Seeing 33psi of boost, egt peaked at about 1350, but it idles like crap. I'm blaming the hr pump, it's pretty annoying and when pulling up to a stop sign it lopes hard and sounds like its gonna stall. I guess as long as it doesnt stall I can deal with it... Seems to me that cant be good for things? A big plus I did notice was my fp gauge really leveled out and doesnt bounce at all, possibley because the flow of fuel is alot easier now? All in all, they arent too smokey, wont get hot for what i'm doing, and the power is sweet. Sooo, Whats next?

aguilar_15 09-21-2011 12:55 PM

Triple turbos!! :jump: Triple turbos!! :jump:

empty wallet 09-21-2011 01:15 PM

I was thinking edge juice with attitude haha. Read my name, that about sums up my "turbo fund" :D

aguilar_15 09-21-2011 02:02 PM

Hmmm that sound good too but trips would be so awesome!

empty wallet 09-21-2011 09:44 PM

Friend of mine was saying the vulcan 1/2" line kit from the canister to the vp will help with the lope. It's not even like it's a nice consistant idle, it's erratic and sounds crappy in my opinion... maybe I'll make a video tomorrow :pca1:

aguilar_15 09-21-2011 10:03 PM

It should cause all it means (imo) is that you're not pushing the right amount of fuel for your injectors. As of now, it probably is your fuel line that's a restriction for the diesel.

But yeah post up a vid, let's hear it

RAW 09-21-2011 10:07 PM

1/2" kit won't help. It's a delivery issue, not supply. 3/8" lines will fuel plenty lots with a good lift pump.

mysterync 09-21-2011 10:14 PM

Re: Injectors are in....
 
You can make all the power you want on 3/8s. You may notice higher pressure drop with 3/8s, but you could compensate with a touch higher pressure. As Mr. Williams noted it won't help your lope. Drop the hr and get a so

aguilar_15 09-21-2011 10:16 PM

:argh: Like injector lines?

mysterync 09-21-2011 10:19 PM

Re: Injectors are in....
 

Originally Posted by aguilar_15 (Post 801554)
:argh: Like injector lines?

?
There is no pressure drop there is no indication of a line size issue.
I don't get where injector lines come into play here. Running bigger ones will cause a lope but their also a complete waste of money.

aguilar_15 09-21-2011 10:26 PM

Idk just shot off the top of my head, nvmd

mysterync 09-21-2011 10:28 PM

Re: Injectors are in....
 
I wasn't trying to be a smart elic, my bad dude. I just re-read that lol.

empty wallet 09-21-2011 10:31 PM

So you're saying the raptor can't keep up because it's needing too much fuel in the lines? Makes sence, but would I still be reading 18-20psi while it's behaving like this? and is there 3/8 kit that goes with Raptor quick connect?

mysterync 09-21-2011 10:33 PM

Re: Injectors are in....
 
No I'm saying the opposite, you have plenty of fuel.
Sometimes a fast pedal drop from full fuel with a big injector will cause a stumble, almost stall.
Could be injector pop pressure issue, could be a pump issue but I'm quite confident you have plenty of fuel

empty wallet 09-21-2011 10:35 PM

So i am very confused at this point and feeling somewhat slow

mysterync 09-21-2011 10:37 PM

Re: Injectors are in....
 
What box are you running?

aguilar_15 09-21-2011 10:38 PM

@ mysterync No problem man, I wasn't thinkin straight, happens often

@empty wallet I'm lost too dude, this is over my head

empty wallet 09-21-2011 10:39 PM

Not running one :s:

mysterync 09-21-2011 10:42 PM

Re: Injectors are in....
 
Not meaning to over complicate my bad. I'm just saying Mr. Williams is right. Your not running out of fuel. It seems to be pump or injector related. I guess the best question would be what injector are you running?

empty wallet 09-21-2011 10:48 PM

No complications, just my lacking intellect. They are SUPPOSIDLY stage 5 jammers, but they don't have the edge stamp on them, and even still they used multiple manufacturers, so who knows, but they tested 62.5 LPM. Possibly the combination of the bigger injector with the crappy behavior of the HR pump is just exaggerating it? Because on stock injectors the HR pump loped coming to idle, now it's just REALLY BAD

mysterync 09-21-2011 10:54 PM

Re: Injectors are in....
 
You are on the right path, sounds like a pump issue, as you said made worse by the injectors. I've always ran a so. Did you have the injectors pop tested? It might help a touch but I vote the pump is the problem

empty wallet 09-21-2011 11:01 PM

Yeah they were tested by Gillette Diesel... my pump is under warranty, havta give industrial injection a call tomorrow and see if they have any input for me, maybe they will let me swap out because my HR is under warranty still? Ah what a pain in my ass!!!! Will definatly put a video up tomorrow so yall can hear how bad it is (and it's bad) :dang:

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And this all really sucks because the truck goes like hell, cruises good, nothing wrong other than idling down, and idle with trans in drive.

Kraemer 09-22-2011 07:37 AM

I have no experience with the HR pump, but I have HEARD (again no experience) that the HR pumps require the larger injector lines to eliminate the lope. Again, I have no experience with the HR pump but I can remember on more than 1 occasion hearing that larger lines are required with the HR pump.

Call II and see what they say.

and yes the Big Injector lope after going full fuel drop to idle is very real, I have had it happen on several occasions, gets my heart pounding looking at gauges every time.

please let us know what II says

aguilar_15 09-22-2011 09:45 AM

x2, I'm very curious about this

Plus I'll learn something new :c:

empty wallet 09-22-2011 11:02 AM

Alright so I called IIS. Those guys are always really helpful, he told me as much as he could gather from what I told him, so basically my fluxuating/dropping pressure is directly related to the erratic lope. I'm thinking air in the lines (possibly from drawtube)... When I hold it steady at 1200rpm or so it will be smooth at first but then tends to get a little rough. I took the truck out for a bit today and and hammered the hell out of it, no hiccups or anything when driving no matter how i treated it and the idle wasn't nearly as bad as it was yesterday, however it will cycle from nearly "normal" idle to a fast, choppy lope that shakes the whole freakin' truck, but the whole time my fp is 18-20psi... cruising it stays around 15, give or take a few, and can see 10psi stuffed

D-LUX 09-22-2011 12:51 PM

the lope is common when running that hotrod pump and bigger injectors.. get used to it..

mysterync 09-22-2011 01:10 PM

Re: Injectors are in....
 
And a so will make more power.

mysterync 09-22-2011 01:14 PM

Re: Injectors are in....
 
If his lope is as described it sounds a touch worse than most hr related lope issues. I installed one hr and took it back off after 2 days

Originally Posted by D-LUX (Post 801714)
the lope is common when running that hotrod pump and bigger injectors.. get used to it..


empty wallet 09-22-2011 04:55 PM


Originally Posted by D-LUX (Post 801714)
the lope is common when running that hotrod pump and bigger injectors.. get used to it..

:ty:

Going to do air leak test like IIS reccomended and order a draw straw V... from 20psi at idle to 10 at WOT can't be normal


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