So after reading all of this, I see no reason to justify having to have a CAI (heat wise) unless you just wanted one.

Thanks for the input everybody.

 

Quite a few have had issues. Misfies and A/F is the 10s with the stock airbox and everything.

 

yep

or just want a cleaner look

 

It was only a matter of time before this guy showed up in another Trifecta thread. Big surprise.

How about we name names of those who have had "issues" besides Sherm420 who had issues with his stock car?

Names or STFU.

 

hmm i should order a tune for my camaro from him. i'm tired of reading positive feedback about him, on here and ls1tech. lol. good job vince.

 

Let me clear the air here. For everyone on here who wants to know why I am so against running the A/F as rich as Trifecta does here is the reason why. Last year around november (3K miles on my car) I finally decided to tune my car. I decided since the cost of a custom dyno tune at Precision Motorsports here in florida was $500 The same cost as HP Tuners so I went for it as the shop is really well known the the LS1 LS2 car world. I had Bob their tuner who has 10 years of experience tuning cars tune my car for me. It never seemed quite right from the get go. It pulled pretty hard in first and 2nd gear but died in 3rd and 4th really badly. I wanted him to scan it on the street to check for knock but he said "we will just do it on the dyno." That did not sit right with me and I decided to buy HP tuners and tweak it myself as I know about tuning cars anway (red flag should have gone up when I had to basically tell this guy how to tune my car). Well I got my HP Tuners and scanned the car. It had 9-10* of KR in 2nd gear and the A/F was commanded at 13.6-12.9 but it was seeing 10.7-11.8 at the wideband (these cars knock like mad and lose lots of power at least on the street when you run them richer than 12.5) . I was thinking to my self what the **** did he do to my car? I pulled the tune file from my ECM and looked over everything. Apparently this guy did not know that simply changing the commanded lambda table was the correct way to acheive the proper A/F on this car. Instead, he raped my MAF calibration table to richen the A/F. I had my Dejon intake on there and I had told him that I needed my MAF sensor recalibrated for the intake and he told me that my A/F error % was 2% (commaned vs actual was actually off by 20-25%!!!!!). This guy runs the tuning school for HP tuners!!!!!!. Just goes to show that just because someone has been doing something for a long time does not mean that they do things correctly and that people often get lazy and they take short cuts when they dont want to do somethng the proper way.
This may give you insight into why I attack Trifecta for tuning these cars at that rediculously rich A/F. My car was running that same rich A/F and it ran like complete crap. Hope that you understand where I am coming from now.

 

YEA give him a try!

 

So your just gonna hold on to the cable untill you get the SRI installed?

 

But where does it say that TRIFECTA messed up the car? It says the guy who ran HP Tuners messed it up.

there is no reason to knock a product you have never tried.

 

The A/F ratio was what was messing the car up!!! As soon as I fixed that the car ran much better better fuel mileage and performance. These motors are designed to run leaner than a normal port injection car period. I guess I am just wasting my breath because it seems like no one listens anyway.

 

are we really gonna start this **** again in ANOTHER thread?? everybody just stay on topic

 

x2!?

 

I'll let you know when i have issues until then really you are getting annoying. ohh and i have had the tune the longest, so once again you have no proof this is causing issues.just give up man, ohhh and maybe someone would listen if it were true ever think about that?

 

Yeah that's what Vince told me to do.

No RPD

My car runs perfect with the Trifecta tune. If (in my case) comp mode is not activated then my car runs a stock A/F ratio. Once the SRI is installed then the A/F ratio will be adjusted to work in both stock and tuned form. So if you don't like running a rich A/F then drive in stock mode until your going to race or whatever. No one goes around bad mouthing HPTuners in every one of their threads.

 

If it were not true than why does every tuner on the planet that tunes these cars except for Vince use an A/F ratio that is approx one full point leaner?, For that matter, look at the difference between the stock A/F on a SC cobalt that uses port injection those run in the 11s. The stock tune on the DI TC cobalt is 14.0-13.0 at WOT. Dont you think that if this motor was ment to run that rich it would have been tuned that way in the first place?

 

Could it be because GM wanted it to get better fuel economy? I'm going to run some data logs later and see what's up.

 

Fuel economy is not a concern at WOT. Safety, driveability, durability and performance are paramount in this case.

 

That would be super.

The A/F thing's getting kinda old. Maybe there's another outside-the-box reason he's doing it that we're not taking into account, such as being able to advance timing more in a slower burn environment without encountering knock for instance.

 

I do understand your concern but not one car Vince has tuned has had any problems besides that one dude that had a lemon.

 

Actually others have had issues. There are 4-5 people on here who have had problems that have actually posted with misfires and A/F in the 10s with the stock airbox so I dont know what is up with that.

 

Terminator2,

I think you're hurting your credibility by constantly posting in these threads (and I'm not even a Trifecta or Superchips owner). This isn't a personal attack or anything, just a simple observation. I think it would be in your best interest to bow out of them. People will do what they want... end of story

Frankly, I think HPTuners is a pretty unpolished product to be trying to push on people too. This is coming from someone who LOVES to self tune their vehicles like you. I'll remain hesitant to hand them $500 for what they've shown in development effort.

 

i just rcvd my trifecta tune and it works perfect with all my hahn stuff

tune needs to be tweaked cause it only gets 20psi and I talked to vince and i want to go about 24 psi, so I will have to upload my data log for him to tweak

but as far a any cel's/drivability problems, none on my first outing, either stock or in comp mode.

toggling back and forth works flawless so far!

it does only get about 6 psi in 1st gear, but I will have to talk to vince as I think he may do this to limit wheel spin/hop which my bsr tune had very bad in 1st

 

I think people are misunderstanding me I guess. I have personally heard and seen issues That is what I see and what I report and I agree that HP tuners needs to unlock more of this ECMs tables as there are 600 for fueling alone. I have whitnessed first hand what running that rich of an A/F does to these cars that is why I feel the way I do. This is not me attacking Trifecta it is me attacking the A/F that they use in this car. I have no prblems with Vince or anyone else I am simply trying to educate. I myself have spoken to Vince personally about tuning theory and DI Turbocharged cars and I hope he took some of the things I told him about A/F and this motor to heart. Heck I wish Vince would release software that I could use to custom tune these cars. Software that is not targeted at just the LS GM market and that has all the tables I need to make a monster out of these cars.

 

There's only one "tune" but some cars see more boost and some see less. Send us datalogs once the tune is installed and we'll get you totally optimized

Yep, we'll get you all dialed in just the way you want it.

 

Lots of timing and an 11.8 A/F will make far less power than 12.7-12.8 A/F and less timing. Because the fuel is injected into the recess in the top of the piston it creates a mixture at the igntion source that is actually very rich even though the overall mixture throughout the cylinder, especially near the piston rings, that is very lean overall. Richening the mixture more means that the mixture near the ignition source is rich to the point that the combustion flame front moves much more slowly (slower burn) and at higher rpms as the injection time is greatly increasing and the injection window is decreasing the injecton cycle will go for too long and fuel will be dumped into the exhaust valves kinda like what happens during a NLS and like a NLS if it occurs for too long a misfire happens.