i'm not saying there is a problem with my tune, that knock up top was never determined truly to be knock. and that hesitation at wot occurred only like twice. i already mentioned im no expert at diagnosing engine stuff. Look, the pulls were done and tuner said it was all good. i didnt demand that he do another 10 pulls to check over and over. i trusted him at his word. if something comes up i'll check with him.

 

Tunes for the LNF are "fairly easy" to do, but are better done by some who truly understands the cahnges they are making. As with any tune, the difference between a good and bad tune is the person doing the tune.

The problem with cars like the LNF that are "easy" to tune is that everyone thinks they can go buy HPTuners and become a tuner. People think they can just go throw in some random DALs, put the MAL at 100%, change the PE lambda to .88, and then go screw with the spark table and have some monster cobalt. Then when they blow up cars and everyone bitches it gives the good tuners a bad name.

Also, regardless of the tune, if you beat the ever loving **** out of your car it will eventually blow up. If you want a tune that pushes every last bit of power out of the car, don't expect it to last for a long time. If you want a "safe" tune, don't expect to be running flat 12 second 1/4s.

 

hey term, how do you handle the clutch slip? do you pedal the throttle right when it starts to slip and then ease back into it? or do you just keep it floored the whole time and wait for it to catch? how long has it been slipping on you? has it gotten any worse? i'm just wondering, because i'm just starting to experience this myself.

 

what?!

 

"but with new plugs and v power and a fairly mild tune, i dont see how a tuner can blow up an engine. can see it with tons of modding and really high boost though."

This might just happen to find it's way into my sig lol

 

I know right?? "ya there's no way you can wash your cyl. walls or run so lean to blow the engine or anything, because I have new plugs"

 

a few people ive heard, had the same experiences either with BYT or Vince.. Something most people on here wouldn't dare to mention??? and they should..

someone went to see him, she went there and he wasnt home. called him left a VM, even thought they had an appointment for that day..

You should have call him right away to have that fixed.. waiting to long could do some damage.. spend a couple of hundred bucks and the motor blows up.. WTF???

it's happened - not every tuner knows there stuff, there human too, i have a TF tune and it took vince 6 or 7 times to get it right.. this is one reason, why most tuners make you sign a waiver, so if your motor blows up you cant sue them.. you waived your rights to sue/ claim judgement/ etc..

 

I lived and learned, but thankfully I have a full understanding of forced induction and how it can go from wow to pow in a heartbeat. I DO NOT TUNE FOR OTHER LNF owners. I will tune diesels and LSx engines. The reason is almost entirely related to demographics, LNF owners are generally the youngest and most careless of performance oriented car owners so there is really no safe way to tune these cars without posturing blame on a tune as a convenient way to say they weren't flogging the crap out of their car at the time.

Some factors tuners generally aren't tracking that can be good to look at in the long run. Pyro temps (installing a pyro before turbo is probably the single greatest thing a owner can do for his car in his quest for more power because even if the tune is dead on you can crest 1600 degrees in a heartbeat and destroy a ring land with the full belief it was knock when it wasn't.

And I should point out that even with this ECM detecting valid knock at high rpm is difficult, that takes some processing beef to filter out the multitude of other noises in a motor.

Also, you should get into a tune ready to roll. Specifically, oil changed, maintenance done, even tire pressures, alignment, all of it plays into a good clean log. I don't tune cars or trucks with dirty/old oil, dirty filter, badly worn tires or if it doesn't drive in a straight line. I don't tune it if there has been modification the the wiring harness, this is mostly because it can cause reading problems. Most tuners know the above and will do a quick inspection of the car before they proceed further. If they don't that is your first warning flag, no offense but I take nobody at their word when speaking for the car/truck I am about to tune. ESPECIALLY diesels.

 

Diesels are some of the worst... Reason being is 99% of diesel truck owners tow a **** ton of weight with them. Pyros go up alot while going up a hill with a 10,000 lbs trailer connected to the ass of a truck. Or what are the new ones rated at like close to 20,000 lbs? My ol 6.5 detroit diesel can is only rated to like 10,000 but I have known people to tow much much more than that.

 

pyro temp on the turbo [exhaust side] or in the e-manifold?

 

both if possible. But before turbo is just fine, drilled right into the manifold, either remove turbo during the drilling, drill with grease on the bit to catch shaving or finish the hole (penetrate) while the car is idling to blow the shaving right through. Almost everyone in the diesel community does the last. not much actually ends up on the back side anyways.

let me rephrase that, the only reading that matters in the case of these cars is PRE turbo. As far as I know post turbo would only be a valid thing to do for extended loading to monitor heat soak (as the readings close the gap you can get an idea that it's time to take it a bit easier on the motor). The turbo should reduce the reading pre to post between 50 and 125 degrees depending on design and VE.

 

Not with v-power!

Quote:When i showed up, although we had emailed a set date, he had no idea i was coming.
Was supposed to get a trifecta/hp tune, vince didnt feel like working that day.
After 3 hours of installing parts, we went data loggin, and my motor blew after like 2 pulls @ 26 psi. This was a byt tune, not saying anythign bad about him, but that was my experience there.

Um... Why the crap were your first 2 pulls at 26 PSI!?!

 

good to know.. Autometer Exhaust Gas Temperature check!

 

im going to be tuned by elecblue06 right after black friday dpending if i buy any other parts.
not trying to go off topic but, has anyone been tuned by him?
he seems like a really awesome straight up guy.

not trying to blow my motor up. anyone have any info for me?

 

Tuning should be progressive.

I tune towards the proverbial wall, this wall is permeable and a good tuner gets a feel for when he's pushing against that wall, when you get there it's up to the customer how close he'd like to be to this wall with his tune. Two steps back? Three? 16 degrees 17.5? 20.5 psi? 22.5? more interested in midrange tuning or a drivability tune after you've gone bolt on crazy? lots of factors, so no, a first time out logging pull at 26psi, your motor popped? I'm not surprised.

 

My point, EXACTLY

 

One thing I have learned over the years...NEVER ASSUME.
Whenever I have an appt that has NOT BEEN VERIFIED BY PHONE at least a couple days beforehand...I always call..ALWAYS. Having said that, that's pretty sloppy **** to happen (including the blown motor)...unless there is a damn good reason. I'll defer from judging here, since I don't know what *really happened*.
Hopefully, BYT will chime in and clear all this up.

 

Sloppy isnt the word it's WTF?

 

I'd have to be drunk as hell to let someone log a tune at 26psi. Unless of course it was ohh LBZ, LLY or one of the other duramax motors. <random comment.

 

this is why Matt from zzp tuned my car on there dyno

I would not let another person tune it!

 

So does anybody know of anyone in NJ that does dyno tunes using HP tuner software??? a legit shop please!!

 

i heard some good things about tune time in toms river, nj. they have tuned about 20 balts or so> cant think of any other hp dyno tuners in nj.

thats funny what that guy said about vpower and new plugs and a mild tune, def sig material. but yea, def the more mild the tune (a correct tune) the less chance of a blow up! oh, i use v power, it is good gas.....

 

has anyone been able to get into the fuel pressure tables with hp tuners, ive read some things on modifying the code so you can "adjust" the pressure.

 

AMEN
also why I'm not really tuning cobalts anymore, just friends cars and that's it.

he doesn't tune, vince does. he's a trifecta dealer..

if you want a real tune, let me know I live in the area

 

It's saying alot when I'm 28 and most of the other car owners here are at least 5 years younger. So I stand by that statement.