Nostrum Energy LNF Big Injectors
02-03-2016, 08:30 PM
#27
Senior Member
02-03-2016, 08:49 PM
#29
Senior Member
Wow....
this will be a good add-on on your 7163 build thread.
02-04-2016, 12:07 AM
#36
Look at any other DI platform; They need an upgraded HPFP prior to any other fueling mods. Hell, we should be grateful to GM for what they provided from the factory. Poor MS3s need a HPFP upgrade after doing minor bolt ons and a tune. Same with the VWs...
02-04-2016, 01:51 AM
#37
Senior Member
An in tank pump isn't the issue with the LNF it's the HPFP and until these come out injectors.
02-04-2016, 06:26 AM
#38
Senior Member
iTrader: (6)
Won't matter. The HPFP is the bottleneck. Once that's taken care of, everything else makes sense but only until then.
Look at any other DI platform; They need an upgraded HPFP prior to any other fueling mods. Hell, we should be grateful to GM for what they provided from the factory. Poor MS3s need a HPFP upgrade after doing minor bolt ons and a tune. Same with the VWs...
Look at any other DI platform; They need an upgraded HPFP prior to any other fueling mods. Hell, we should be grateful to GM for what they provided from the factory. Poor MS3s need a HPFP upgrade after doing minor bolt ons and a tune. Same with the VWs...
I know VW's have a poor design cam on some of their engines and have improved it for better pressure and flow control on newer engines.
02-04-2016, 09:37 AM
#39
you increase the injector size, the pressure needs to be higher to provide the same flow or volume per sec.
Put your thumb on the end of a running hose = current stock injectors and stock hpfp.
take your thumb off = upgraded injectors and stock hpfp.
Attach a high pressure washer after the faucet = upgraded hpfp.
Put your thumb on the end of a running hose = current stock injectors and stock hpfp.
take your thumb off = upgraded injectors and stock hpfp.
Attach a high pressure washer after the faucet = upgraded hpfp.
02-04-2016, 02:42 PM
#40
Senior Member
iTrader: (6)
you increase the injector size, the pressure needs to be higher to provide the same flow or volume per sec.
Put your thumb on the end of a running hose = current stock injectors and stock hpfp.
take your thumb off = upgraded injectors and stock hpfp.
Attach a high pressure washer after the faucet = upgraded hpfp.
Put your thumb on the end of a running hose = current stock injectors and stock hpfp.
take your thumb off = upgraded injectors and stock hpfp.
Attach a high pressure washer after the faucet = upgraded hpfp.
You increase the pressure at the pump to allow more volume to inject in the window the injector is open, increase the opening in the injector and the pressure required decreases. Think of water flow through a 1" pipe vs a 2" pipe, the 2" pipe will flow the same amount as the 1" at a lower pressure, increased pressure on the discharge of a pump requires more energy to flow the same.
Yes there will be a point when the pump can't keep up, but without connecting the injectors to the current hpfp we don't know, nor does bosch really give good data on how much volume per stroke of the pump (or at least I haven't dug into bosch data for our hpfp data).
Going to larger injectors in the stock fuel pump is standard with the LSJ, it's only at a point do they out flow the pump. The opel injectors everyone was so amazed by the 10% increase, without changing the hpfp, this is the same idea. Sure some major builds may outflow the hpfp, but those people will most likely be the exception. Most would want these to run e85 on a stock or slightly larger turbo.
The following users liked this post:
CudaJoe (02-05-2016)
02-04-2016, 09:38 PM
#46
No, you're flowing less water with the pressure washer than an open hose your analogy doesnt work we have a pump and a nozzle involved. Pumps flow more at lower pressure, and nozzles flow more at higher pressure, but increase the nozzle size and decrease the pressure needed to reach a volume.
You increase the pressure at the pump to allow more volume to inject in the window the injector is open, increase the opening in the injector and the pressure required decreases. Think of water flow through a 1" pipe vs a 2" pipe, the 2" pipe will flow the same amount as the 1" at a lower pressure, increased pressure on the discharge of a pump requires more energy to flow the same.
Yes there will be a point when the pump can't keep up, but without connecting the injectors to the current hpfp we don't know, nor does bosch really give good data on how much volume per stroke of the pump (or at least I haven't dug into bosch data for our hpfp data).
Going to larger injectors in the stock fuel pump is standard with the LSJ, it's only at a point do they out flow the pump. The opel injectors everyone was so amazed by the 10% increase, without changing the hpfp, this is the same idea. Sure some major builds may outflow the hpfp, but those people will most likely be the exception. Most would want these to run e85 on a stock or slightly larger turbo.
You increase the pressure at the pump to allow more volume to inject in the window the injector is open, increase the opening in the injector and the pressure required decreases. Think of water flow through a 1" pipe vs a 2" pipe, the 2" pipe will flow the same amount as the 1" at a lower pressure, increased pressure on the discharge of a pump requires more energy to flow the same.
Yes there will be a point when the pump can't keep up, but without connecting the injectors to the current hpfp we don't know, nor does bosch really give good data on how much volume per stroke of the pump (or at least I haven't dug into bosch data for our hpfp data).
Going to larger injectors in the stock fuel pump is standard with the LSJ, it's only at a point do they out flow the pump. The opel injectors everyone was so amazed by the 10% increase, without changing the hpfp, this is the same idea. Sure some major builds may outflow the hpfp, but those people will most likely be the exception. Most would want these to run e85 on a stock or slightly larger turbo.
https://en.wikipedia.org/wiki/Bernoulli%27s_principle
02-04-2016, 09:41 PM
#47
Senior Member
Yes. These injectors are not requured for anyone under 500hp in my opinion. I've heard of guys running full E with just the lobe I have not personally tuned anyone like this but on the R I recommend both injectors and lobe if wanting full E. I get my guys to run E47 it's my fav. Fuel upgrades go in this order first lobe then injectors and if you still need more a 5th. I'll have a lot of fueling data in the months to come as my guys start their tuning on their new builds!!
02-04-2016, 09:43 PM
#49
So then wpuld it be safe to safe to run full e-85 with the 6758 or 7163, these bigger injectors would be needed along with the fueling cam?
and since these injectors "will be cheaper then stock" wouldn't it be cheaper to get these over the opel injectors?
and since these injectors "will be cheaper then stock" wouldn't it be cheaper to get these over the opel injectors?
02-04-2016, 09:43 PM
#50
Senior Member