How much louder are single shots?

liquidlounge · May 22, 2012

First post. I keep reading about single shot injectors being the cat's pajamas. So I'm thinking maybe converting to a std H2E and AC single-shots. I use the truck on 4+ hour long tow trips and the possibility of any extra annoying noise might be a deal breaker for me. I've never ridden in a truck with singles, so what should I expect? (I know, I know; if I want a quiet truck, then get a gasser) Thanks in advance, Dave

dentexpowerstroke · May 22, 2012

it's noticeable but it's not bad. It's mainly on acceleration that you hear a difference. I can still have a conversation in the truck at normal-quiet talking level. if you want to help sound deaden it a bit more put 2 layers of bed liner (linex, herculiner, rhinolining) on your valve covers to help.

liquidlounge · May 22, 2012

Thanks- I see I could have put this in a better section...

Chvyrkr · May 22, 2012

If you do a RR it'll quiet them down a bit.

Honestly, above idle I couldn't really tell a difference.

It was most noticeable during cold starts.

Arisley · May 22, 2012

I can't hear my injectors over the radio and exhaust noise.

CurtisF · May 22, 2012

I can't tell any difference above idle. Heck, I can pull back the timing and make the truck run far quieter than a stocker.

Idle is the only real time you should be able to tell any difference in sound between singles and splits.

Now if the tuning isn't correct, then yes you'll hear it. But it's not the injectors, it's just a function of incorrect pulsewidth, timing, and or ICP.

TARM · May 22, 2012

Once you are on it there really is not much of a dif. I think the dif follows the way the PW and pilot fire off. As rpms climb they are more the same in sound. Idle is where the dif is IMO and it is noticeable. But for a diehard diesel guy its sweet music.

imp:

SDstroker · May 22, 2012

Mine are damn near stock sounding. I need to get audio of my truck and my dads side by side.

Powersmokin32 · May 22, 2012

My single shots sound basically stock with Cales tuning.

907DAVE · May 23, 2012

Really depends on tuning. My hybrids can idle clean and be quieter than stock AD's. It was really obvious when I had both trucks running side by side on a cold start. I have had many people ask why mine was so much quieter than their stock trucks, get that tuning dialed in and there is no reason they have to be louder.

dietoremain · May 23, 2012

As said with good tunes you won't have a problem with em. Worth it IMO.

liquidlounge · May 23, 2012

thanks for the replys. Would the std. H2E set-up be about right with the std. nozzle AC's?

sniper_101 · May 23, 2012

My experience - slightly louder than stock at idle and under 1400rpm, but once you're in the boost with any more than 3-5lbs, they quiet down like the stock injectors do. No significant difference in sound.

Chvyrkr · May 23, 2012

liquidlounge said:
thanks for the replys. Would the std. H2E set-up be about right with the std. nozzle AC's?

Honestly, if all you're looking for is the extra towing power from a set of AC's, I'd drop a 38R or a Van turbo in there.

DocBar · May 23, 2012

Good tuning is the answer on single shots. As far as injectors go, go bigger than you think you want right now. After the new wears off, you'll be wanting to add some HP and good tuners can tune just about any size injector to match the rest of your set up. I'm saving up for bigger sticks right now and have had mine for just over a year. Maybe we could make a deal?

Oh yeah, with Matt's tunes, I can barely hear mine when I'm running down the road. Of course, the 38R just might have something to do with that.:shrug:

liquidlounge · May 24, 2012

I know everyone is wild about the 38r, but I just don't want that sound the way I use the truck. I know its good bang for the buck, but I don't mind spending some extra for somthing like the H2e IF thats a good turbo to use. I think I read on Hypermax's site that it was for appx 350hp and thats about where the AC's will put me, correct?