Rating Injectors by Horsepower?

BluegrassDiesel

BluegrassDiesel

UK2K!
Joined
Apr 9, 2007
Messages
4,136
Why do some people/companies do it and how can it even be an accurate? What do they base it on? I think people are often misled by thinking "If I put these 140hp injectors in my truck, I will have 140 more horsepower".
 
you always base it off a stock rig.. Most jerkoffs out there reading the mags have stock rigs and the number makes them feel better. That way they don't have to run on the dyno to prove how badass they are.
 
Makes my math easier.

Stock = 245 hp.
Edge EZ = 65 hp.
Smarty = 65 hp.
FMS = 120hp.
Exhaust = 10 hp.
Intake = 10 hp.
Injectors = 120hp.
Turbo = 50hp.
Injector Pump = 100hp.

I have a 785hp VP truck. Right? Right?
 
MD-LUCKY said:
Makes my math easier.

Stock = 245 hp.
Edge EZ = 65 hp.
Smarty = 65 hp.
FMS = 120hp.
Exhaust = 10 hp.
Intake = 10 hp.
Injectors = 120hp.
Turbo = 50hp.
Injector Pump = 100hp.

I have a 785hp VP truck. Right? Right?
Click to expand...

You forgot to add any stickers you might have LOL

Seriously though Im curious to see if there is any reasoning behind it. Even reputable companies with quality injectors rate them by HP
 
I think f-1s site kinda explaind what turbo you need to run which injector to make that kind of power, I know on the vp injectors he does, if i remember right, id go look but im on my fone
 
I like injector companys that tell you how may holes and what size holes and I
also like using lpm. As for knowing what turbo to use with what injectors, well I think that just comes with trying different setups and also knowing what your doing.
 
Josh you have to remember that of the guys who buy these injectors, a large majority are the general public and as we all know they can be very simple.

The guys on this board who compete or have a any knowledge of what they are doing when sizing injectors is very small percentage. I have to agree on the way the big companies do it. Imagine you are DDP, or II and you put an ad in Diesel Power that every mouth breather and backwoods redneck picks up at Sheetz with descriptions of injectors in LPM, or hole sizing. You'd have more overhead of people answering questions for these folks than you would if old Joe Blow can call up and say "I want the 140hp injectors."

You have to advertise to the masses, and the masses are pretty dumb. LOL

When you get into the small percentage of serious competitors and you are sizing injectors with pumps/chargers then you have guys like Smokem, or Haisley/Scheid and other competition oriented shops that can give you hole size specs and flow numbers, rather than just a HP rating.
 
MD-LUCKY said:
Makes my math easier.

Stock = 245 hp.
Edge EZ = 65 hp.
Smarty = 65 hp.
FMS = 120hp.
Exhaust = 10 hp.
Intake = 10 hp.
Injectors = 120hp.
Turbo = 50hp.
Injector Pump = 100hp.

I have a 785hp VP truck. Right? Right?
Click to expand...
805. Figure 20 each for intake and exhaust:hehe:

getblown5.9 said:
Josh you have to remember that of the guys who buy these injectors, a large majority are the general public and as we all know they can be very simple.

The guys on this board who compete or have a any knowledge of what they are doing when sizing injectors is very small percentage. I have to agree on the way the big companies do it. Imagine you are DDP, or II and you put an ad in Diesel Power that every mouth breather and backwoods redneck picks up at Sheetz with descriptions of injectors in LPM, or hole sizing. You'd have more overhead of people answering questions for these folks than you would if old Joe Blow can call up and say "I want the 140hp injectors."

You have to advertise to the masses, and the masses are pretty dumb. LOL

When you get into the small percentage of serious competitors and you are sizing injectors with pumps/chargers then you have guys like Smokem, or Haisley/Scheid and other competition oriented shops that can give you hole size specs and flow numbers, rather than just a HP rating.
Click to expand...
Well said TJ.
 
Beave said:
I like injector companys that tell you how may holes and what size holes and I
also like using lpm. As for knowing what turbo to use with what injectors, well I think that just comes with trying different setups and also knowing what your doing.
Click to expand...

Definitely think some sort of volumetric flowrate is the best, but again, not a lot of places are doing it. Size of hole and count isn't terrible, but that doesn't take into account the full potential of the injector especially if internal modifications have been done. $.02
 
MD-LUCKY said:
Makes my math easier.

Stock = 245 hp.
Edge EZ = 65 hp.
Smarty = 65 hp.
FMS = 120hp.
Exhaust = 10 hp.
Intake = 10 hp.
Injectors = 120hp.
Turbo = 50hp.
Injector Pump = 100hp.

I have a 785hp VP truck. Right? Right?
Click to expand...

I think you forgot you have six of those injectors! 6x120=720. 720+665=1385hp vp pickup!
 
Yes saying a hp is simpler, but the mass of people don't know about hole sizes because they are not told. If you display injector hole count along with size of holes and then tell them what they could possibly make hp wise. More people would begin to understand.
 
j-rod said:
Definitely think some sort of volumetric flowrate is the best, but again, not a lot of places are doing it. Size of hole and count isn't terrible, but that doesn't take into account the full potential of the injector especially if internal modifications have been done. $.02
Click to expand...

And your right. After I posted last night I thought about internal mods. Like I said. I like having the hole size and everything, but to go along with the hole size I like knowing what lpm the injector can flow
 
Well, definitely stated well above. But confusion comes into play when one brands rated 150hp doesn't equal the flow of another brands 150hp and the less educated get bent over it and start a pissing match crying they got ripped off over it. I am not sure this is even solvable to a standard as brand x flowing y lpm may make more and cleaner power than brand z flowing the same y lpm.
 
to make matters worse an injector may flow x lpm on one bench and y on another bench....

or how about why does x hole size flow y amount, but the holes on z are smaller but it flows more?

personaly i think lpm makes the most sence, that way its actualy mesuring flow. but for comparisons, every thing has to be flowed on the same bench. just like dyno's you cant directly compare a dynojet to a mustang to a....
 
So what is best ? LPM,KG PM, CC's PM. Oh and one more thing what do we use Air or Fuel ? All of these measurements are used by a veriaty of different shops and manufacturer's.
 
well most LPM, like DDP is compressed air, not fuel! you think DDP comps flow 62lpm of fluid? hell no thats 16.37 gallons of fluid per minute:what:




I would think %-over flow-rate would be the most accurate
 
I always though (for an unknown reason) that they were rated at X hp if you have the proper amount of air to go with a particular injector. Does that make any since?
 
i like seeing hole number and size. I have run quite a few different hole sizes and spray patterns to know what i would like to have. As far as internal mods..... I could see why wanting to know the lpm would come in handy. But, for the most part, i think that the hole size and number of holes will be the most valuble info to the average person that knows about anything.
Lance
 
MD-LUCKY said:
Makes my math easier.

Stock = 245 hp.
Edge EZ = 65 hp.
Smarty = 65 hp.
FMS = 120hp.
Exhaust = 10 hp.
Intake = 10 hp.
Injectors = 120hp.
Turbo = 50hp.
Injector Pump = 100hp.

I have a 785hp VP truck. Right? Right?
Click to expand...


first time i dynoed my last truck i guessed within 10 hp based on what i had. had the 235 motor, so i figured it was around 190 or so to the ground, plus the edge at 120 hp, and the ddp 200s, plus the 62. i guessed around 525 and put down 536.
 
You must log in or register to reply here.
Back
Top