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Hear it! HRVP 44 lope

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Lope

Cummins4Life said:
Glad you like it, but there's no way in heck I'd want my truck to sound like that.



Do all HR44's sound like that?



Mine does not sound like that at all. It's a little lopey when coasting to a stop, but nothing like that.



Tim W.
 
By any chance are ther larger injector lines or crossover tubes in the truck with that HRvP? Like say a . 093 set . 120's will lope bad but 93's will lope a lil like that.
 
DBanner,

What is your idle speed in gear?

Mine lopes like that coasting at low speeds but smooths out at a stop and it lopes like that sometimes when cold for a bit.



AFarmer,

I've got F1-M4's in mine and can't get a prolonged lope at a stop like that, but his idle sounds a bit lower than mine and that could make all the difference in the world.





I'm not complaining about the lope in fact I wanted mine to lope.
 
Mr. C said:
DBanner,

What is your idle speed in gear?

Mine lopes like that coasting at low speeds but smooths out at a stop and it lopes like that sometimes when cold for a bit.



AFarmer,

I've got F1-M4's in mine and can't get a prolonged lope at a stop like that, but his idle sounds a bit lower than mine and that could make all the difference in the world.





I'm not complaining about the lope in fact I wanted mine to lope.





Mr. C

The idle is about 825-850 in neutral.

In gear it drops below 800. Interesting is the bouncing tach of about 25rpm.





AFarmer

She is smooth on the coast and begins the lope at almost full brake. Holding the brake it will continue to lope or it goes away to smooth idle.



If it lopes at a stop and I release the brake it idles along loping until I touch the throttle and it clears itself up.
 
How would a Smarty help my lope?

Shortshift said:
Can I be honest? It sounds like crap.





Shortshift:

Sure! What can I say, but... Thank you for being so honest.



How would a Smarty clear up my little lope problem? Could you explain to me what it would correct? Curious.
 
Most people so far dont seem to think it is a "problem".

To me it doesnt sound like the fueling at idle is correct or efficient at all. It sounds like the controller is sending fueling signals that are too heavy at that low of an rpm, which is causing it to overshoot the target rpm, then it cycles down again.

My guess is its because the electronics are programmed for a standard (lower output pump). Whether those electronics are in the pump controller itself, or in the ecm, I dont know.

I'm "hoping" that idle fueling can be adjusted in the ecm via a special tailored Smarty program. If thats the case, you can have the best of both worlds with a Smarty and HRV combo (Smoother running bottom end, and more power on top).

If the idle fueling is not controlled via the ecm, and is controlled by the pump's on board ckt board, then that may be something HRV owners will have to live with (which most people on here seem to like anyways). At least until the pump builders can adjust idle fueling (if they choose to or have the means to do it).
 
It's a "problem" only in the same regard the radical cams are in Gassers, which also is the result of inefficient delivery of fuel and exhaust timing at lower RPMs - but clean up and run well as RPM reaches the point where fuel delivery and exhaust timing starts falling into the proper efficiency/RPM curve. You can't usually have your cake, and eat it too - and in the case of the hotrod VP's, the "price" of increased power and fuel delivery is frequently an erratic idle at low RPM.



That's life! ;) :D
 
There you go. . HR = Hot Rod. . Its not like the name is misleading or anything.

This thread gives me ideas. .

Im gonna have the coolest sounding Honda generator in the campground. . Just gonna pull out the choke knob and leave it that way. .

romp romp romp romp romp ... :-laf :-laf
 
Anyways Bdanner, Im realizing now that considering the description I gave to the sound. . (while I was being so honest) that I'm the one who "stepped in it".

I just went back and found the post where you said this is your wifes truck. . :eek:

Did I mention :eek: ??

So,, uhmmm I kinda went back and relistened to the clips (with more realistic sounding speakers this time of course). . And you know. . Its not sounding all that bad after all. Kinda "powerful" actually - It seems to idle with "authority", . . sorta has that respectable tone to it if you know what i mean. . Im starting to wish mine would idle with dignity & class like that. .

Yep. . welp. . nice chattin. . Think im gonna go and do something now. . Hey If you think about it, you can tell your wife she has a great sounding rig. . :)
 
I wonder why I don't have the lope, I have a II hrvp. Maybe it will lope when I change to bigger injectors. Any ideas?
 
My truck must sound like that! :-laf Here's my plan: I don't have the beans for a HRVP, but what about some . 093" fuel injection lines? They cost about one fifth the price of the pump and who knows, maybe I can take advantage of their potential later. :cool: What do y'all think? Also, would I need bigger connector tubes to go with the lines? Obviously by now you can see how my sick mind works! :D
 
mhuggler said:
My truck must sound like that! :-laf Here's my plan: I don't have the beans for a HRVP, but what about some . 093" fuel injection lines? They cost about one fifth the price of the pump and who knows, maybe I can take advantage of their potential later. :cool: What do y'all think? Also, would I need bigger connector tubes to go with the lines? Obviously by now you can see how my sick mind works! :D

Bumpy,bump. Looking back, I should have been a little more specific. I'm wondering if the oversize lines and/or connector tubes would give me the same effect at idle as the HRVP. Again, very :cool:
 
I dont have the HRVP but i do have the 93 and 93 over cross over tubes and lines and mine does lope like that. i had 220 hp inj and it loped hard. i just recently put 100hp inj in and ive noticed it lopes after its warmed up. Next im going to replace the lines back with the stock ones and see if it does it.
 
ToolManTimTaylor said:
By any chance are ther larger injector lines or crossover tubes in the truck with that HRvP? Like say a . 093 set . 120's will lope bad but 93's will lope a lil like that.



That is what I said backin Post 23. Does the rig in Question have them?
 
mhuggler said:
My truck must sound like that! :D



Well if you can get your truck to throw a code P-0336 and a code P-0602 like mine did the other day it will sound like that, but the tach wont work and the check engine light will be on :eek:

Kinda worried me for a bit but I cleared the codes and all is fine (fingers still crossed)
 
HRVP44 and injectors

Warpig said:
I wonder why I don't have the lope, I have a II hrvp. Maybe it will lope when I change to bigger injectors. Any ideas?





Warpig:

I added the VP44 and the Mach 1. 6 a fairly mild injector at the same time. Industrial Injection was most kind in replying to my issues. They believe it was the larger injectors that brought about the pronounced loping. I reinstalled the factory injectors and had a much smaller lope, but the truck lost it's Balls! So it was back to the 1. 6's.





I must repeat that the lope is under load conditions (towing) when the truck is moved from P or N into D. The lope appears occasionally in traffic at a stop light while idling at rest in Drive.





In fairness to Industrial Injection and their VP44 my truck is probably on the far, far extreme. Every truck responds differently. Also the audio quality is pronouncing the "alien" sound that one poster resonded hearing. It is not as annoying as the sound bite or my Wife would want the HRVP44 changed out!
 
god i love that sound. i could listen to my truck all day. sometimes if i am bored i will go start my beast just for the heck of it. nice sound clips.
 
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