Well i coughed up the bucks to hit the dyno at a shop today. I decided to have them run my car with and without the tune to see why i was misfiring among seeing where my cars power curve is.

Without tune: car ran to 15lbs. was running way lean hit like 17ish. Pulled the plugs and seen the gaping to for the plugs was way off. re gaped and ran car with tune.

With tune: car was still lean but air fuel dropped to 14ish car mad 236whp (not wot). Pulled plugs once again and lowered gap down to 28 i think he said 30..car ran strong 24lbs boost (wot) she made 291whp. this tune is shitty was told to try and see if hahn can correct my tune and if not they can tune it for me..

Mod request was:
- Fuel Pump
- Injectors
- NGK Spark plugs ( have some cheap ass autolites in there now!!!)
- Better tune
Going with the aeromotive stealth pump can't find injectors on ZZ spark plugs getting tomorrow and tune after i get a reply from hahn.

 

are you supercharged?

never heard anyone doing injectors on the LNF

 

lol they dont make injectors for the lnf.. im almost positive..

 

No running stock turbo.i just thought maybe upgrad the fuel pump im still learning this motor and everything, i mean i recently found out there sin't a fuel regulator. just a low pressure and a high pressure pump but i was at a shop so i figured he knew wut he was talking bout.i seen a MSD high pressure fuel pump that was pretty decent. but now that i got the spudder to stop and the air/fuel down i think just better plugs and tune will have her running right.

 

Didn't we already say you don't need to upgrade any fuel system component in your car with the tune/mods you're running? You're not even close to maxing out the stock fuel system setup in the least bit dude. The LNF is totally different from the LSJ (supercharged) motors. You DO NOT need upgraded injectors, fuel pump, etc. Not to mention you CAN NOT upgrade them in the same sense that you would on the LSJ motor. Or any other regular MPI or SPI fuel injected motor for that matter.

 

Your only at 24lbs of boost on the stock turbo you do not need to upgrade the lnf fuel system.

 

Read up on your car before you run around blowing money. 90% of shops out there dont have a clue about the LNF hence the reason you got a suggested parts list for a srt4.

What you need
Plugs stock 41-108 or ngk 3787
downpipe
24psi tune from someone like BYT

on a dynojet I would expect you to put down in the area of 315whp and 360wtq or more depending on how aggressive you go and fuel type available for about $500 for those 3 items

 

Have a downpipe already. and for the comment bout the fuel system, granted you posted multiple times but with just posting and lil guidance i can be honest i wasn't listening to you, been at this shop a few times they always have a full shop of cars to work on mostly imports so i listen to the guys who do it for a living. still learning the car honestly so. But after i get this tune thing str8 i dnt think im gonna spend anything else besides the basics and maybe apperance. I like to spend money dnt like to waste money.

 

how aggressive should i go? this is my DD

 

All I'm going to say is this: If those guys at that shop said that you need to upgrade your fuel system components, they are by all means 100% completely, unequivocally, wrong. If you want to spend money and completely f*ck your car up, continue to let them work on it.

 

You have no idea what you're doing and neither does that shop. Stop before you really break something, like your wallet.

 

I say you let them upgrade your fuel system. im curious to see what awesome power gains are to be had from this newly found modification to the LNF lol

 

Nfamous60, I know you probably don't want to listen to others on here about the fuel system since the shop told you otherwise, but our car's just don't work like that. Talk to ZZPerformance on here about the fuel system. Your not even running E85, so you are no where near maxing it out.

 

This is funny. With boltons and just the stage kit i put down 286/291 and i havent dynod with the tune. Dude dont touch your fuel system youre nowhere near maxing it out trust us on here we wont stear you wrong. That shop has no idea what they are talking about. Like you said theyre use to working on imports. Talk to ZZP about fuel and they will tell you everything you need to know if you dont believe us

 

As said previously your average tuner/modification shop isn't going to know anything about the LNF and direct injection engines for the most part.

Hell I went with a guy to a shop called speed south this weekend and they were pulling a 1100 whp supercharged new camaro ss off the dyno (they have cars shipped from them from all over the country) and then told my friend his car should be running AFR's lean like most other cars.
Wrong, wrong, wrong.

Listen to the guys with LNF's on this forums about what you need and don't need.

Or get in contact with one of the vendors on this site that deal specifically in LNF parts.

 

Me and 2 other SS/TC's got told that when we were dynoing a little while back.

 

You were already told in the thread you started about the zzp rewire kit. If you want to ignore the info people are giving you on here then go for it and let the shop upgrade your pump and also your injectors however they are going to do that. If you finally decide to listen though dont waste your money on fuel upgrades being on the stock turbo you do not need them.

 

I can see it now...

 

Edit: the LNF likes 12.9-13.0 afr from what I've seen and experienced

 

I been on the site. been looking at that came with the heightened lobe for. but not at that stage yet, just tryin to read n take advice from as many sources as possible, it different readin one thing and then having sumone tell you the complete opposite at the same time. i usually describe on here wut i have heard or come across the previous day or hr or so.

the criticism only gets annoying when u make comments n dnt clear up the confusion!!

 

the post bout the re-wire kit was bascially for insight after looking thru the ZZP website i dnt remember saying i brought any of it, i do listen when the info makes sense i will not listen when u just throw out a statement and not explain i been sayin since i joined im still learning the car. not bashing the advice on here cuz i do use it which is why i continue to post bout wut im being told in one place compared to wut everyone on here is saying... but if you go on the el paso thread here that shop does have a cobalt SS 2dr supercharged that was converted to turbo, motor is out n being built so kinda hard to ignore them fully when they are working one... but this site is all cobalt owners so im just tryin to get in on the learning curve...(no disrespect intended).

 

Look at the posts from like 10 people in this thread. You DO NOT need fuel system upgrades at this point with your current setup. The shop that is saying you do need the upgrades is wrong. You said they are working on a supercharged car, which is the LSJ motor. Again, we have the LNF motor in ours cars and the fuel system is radically different. They may be familiar with the LSJ motor, but are obviously not familiar with the LNF.

 

come on guys, lay of the guy... let Hot Import Nights tune his car, they obviously have it under control, lol

 

There you go they are working on a turbo swapped lsj not an lnf like your car. You have a totally different fuel setup then what we lsj guys have.

 

So I'll agree with you about reading different things and being told something. Now your asking about the SS/TC since you are in that discussion thread. Most of the people on here have had theirs for a couple years. I've had mine for 70k miles and a little over 2 years. The reason for the heightened lobe... is more for big turbos or E85, which from what you said your not. I'd recommend you get a tune from someone like BYT or Chevycobaltss3...