dunit121

i was just wondering if anyone has upgraded there injectors? my friend thats a mechanic recomended injectors, bigger turbo, inter cooler, charge piping, and if i wanted to go all out standalone. just looking for some info specifically on types of injector upgrades, turbo's and if anyone has done stand alone on this lnf. thanks

tomj77

iTrader: (2)

does ur friend know alot about the lnf? the injectors are not like normal injectors, they are good to probably 500+hp. u dont need to upgrade them. I dont even know if anyone makes any for the lnf anyway. there are some turbo kits of there by hahn and others, but our cars have a fueling issue with the direct injection so u cant go past 400whp at the moment, im sure someone will let u know i dont know how to explain it i just woke up. lol

dunit121

he knows a decent amount about lnf's but he said he does alot of work on vw's and puts ford injectors on them. basicly all injectors are the same from what he told me they just need a little custom fabrication

fredds-turbaltSS

D we dont need injectors, we need HPTuners to unlock all the fuel tables so we can adjust the injection's. We can hit 500 HP with the stock injectors

dunit121

and if you go stand alone will that just happen automaticly? because from what i know if you go stand alone nothing is regulated and it is all just ***** to the walls because your going around the ecu

basicly like a super tune

fredds-turbaltSS

well yeah stand alone would take car of the fuel issue but i dunno if there are any standalones for the LNF not really sure

Terminator2

The ECM will still regulate the wategate which controls the turbo and you would need a standalone compatable with the DI system. There are as of yet no upgraded injectors for the LNF nor is there the ability to tune for them anyway.

dunit121

allright thanks for the info guys

Jn2

iTrader: (1)

just use hptuners to tune the car, you can use any ecotec turbo turbo kit, something like the hahn lv2 will work, the level 3 with some mods...but your best bet it to get the manifold, the turbo, and the downpipe, than go custom on the charge piping and the intercooler, there is no need to go standalone, and standalone does not add power, its for tuning, which u can do with hpt

tomj77

iTrader: (2)

normal fuel injectors run under 100 psi, our di injectors go at over 2000psi, so yes they are different

IsItFast?

The reason people are hitting a wall at 400ish HP is due to the injection window. There is less than 5ms to inject all the fuel, and at the pressures that are running and injector design wont allow for injecting over that. Thus, we are stuck until someone figures out a way to increase the pressure or possibly modify the injectors to inject more fuel in that 5ms window at stock pressures.

..once that is unlocked, 500+ HP will be easily within reach - we may start to find out where the bottom end dies!

slowswap

This mechanic of yours doesn't sound like he knows LNF's. He probably doesn't even know how DI works.

Matt M

It sounds like he needs to read up on the LNF and direct injection in general. DI injectors fire directly into the combustion chamber. Fuel pressure is over 2000psi under high load. They also require 60 volt drivers to open them. Basically, they are nothing like typical fuel injectors.

Stand-alone fuel management systems won't drive the DI injectors.

Edit- I guess everything I said was already covered.

IsItFast?

Not necessarily - the fuel system is a Bosch injection system - not particular to GM. There are similarities to Ford and others. Its just a matter of time before someone comes up with upgraded injectors..

The high pressure fuel pump may be the next problem - and that is particular to the LNF. Some other DI systems have already had aftermarket high pressure pumps devoped for them, its just a matter of time for ours.

Its also just a matter of time before someone modifies the aftermarket controllers.. (Systems like the megasquirt)

RageTechnologies

I do not see AEM, Megasquirt, Electromotive or any other company making standalones supporting the LNF...Unfortunately

Closest we could probably get to it is a shop like :::cough cough: Rage-tek cough:: making one with parts being supplied by their company's of choice. Even then you wont see DI being controlled as it would be easier and most likely less time consuming figuring out how to mount a new rail and run a set of normal injectors, making an external pump set-up to supply the desired fuel, and tuning it with the standalone and just let the DI do its thing....


HPTuners already has LNF's tuning market under wraps even they dont support it 100% yet. With that being said I dont even see shops doing what I said above because after its all said and done the cost of the new parts needed AND the EMS will be far beyond what someone would want to spend on having the ability to tune their car.

Terminator2

The only issue I can forsee is trying to run port injection on the LNF as well as the DI is the efficiency of the flamefront would be comprimised by the port injectors. Our Pistons have a special dish where the fuel is injected and I believe that the port fuel would not be very efficiently burned and power would fall off. We would have to see some testing to know for sure though.

peachpuff

Motec has an ecm for direct injection, but the price will make you cringe.

slowswap

Motec is the most badass ECU manufacture. Ask the Supra guys.

tomj77

iTrader: (2)

that guys mech sounds like the guys who were saying 16 inch steelies would fit on my car. "we have worked on alot of these cars." they said and the car had just come out. I think his mech and the ones that didnt know the tc couldnt use 16" rims think its a sc he has not a tc, even after u spacifically tell them. lol

RageTechnologies

Motec is for the Fast and furious crowd lol. jk