HA! Go figure..... Think they bit off more then they can chew in the first place. DI control is no easy task for a tuner let alone someone trying to crack the codes! Well I guess we'll have to sit back and let it play out....

Here's an idea..... Run a set of sub injectors on the charge pipe and control them via an conventional fuel controller/piggyback.

 

Yeah, I'm surprised too nobody has tried doing a DI + port injection combo/hybrid. I figured somebody like ZZP would've tried something like that. I read that they ended up being able to do a fuel pressure mod of some sort instead. From the sound of it, I'm guessing it was a hardware mod.

 

BTF racing has thought of adding some extra injectors to resolve big turbo issues. Not sure the progress on that.

 

Not that hard. Just a matter of time and R&D. It would probably be the best most effective route given the circumstances. Hell, might even be the best route PERIOD! DI Injectors=$$

LSJ and LNF Cobalts are supported by the same HP Tuners software/hardware? If so, you can use the injector outputs the LSJ uses to control their injectors for the newly added LNF Sub injectors. Saves spending the $$ on another piggyback. Shooting in the dark here......

 

Nope, next year probably. I want absolute wastegate control no more of this spiking 24 psi and holding 21 psi I want to be able to see 23-24 psi all the way through. MBC works but the car feels sliggish out of boost and it hits like a light switch when it comes into boost. I hated the driveability with the MBC on there but it was a tad faster on my 60-100 times.

 

I believe they said Spring 2010 in the latest thread on HPT.

 

I hope so.

 

24psi @ redline? I would think that's out its efficiency range. I have to dig on my folders and find the compressor map.

 

Are you serious? Any more details on this?

 

I'm afraid not. Tofu was telling me about this the other day, so all I know about it is what he had heard. Not sure if it's on their forum or not. I suspect it's not though (being a legal matter) and on some other one.

All I know is that the people that were planning on going big turbo that were told by HPT that they were about to release the fuel tables (and didn't) feel shafted and are forming a group to go after HPT for basically telling them they were going to do something (to make the sale) and then didn't do it.

That's all I know.

Maybe something positive will come out of this though.

 

There not going to get anything out of going after HP legally..... Word of mouth that something is going to be done simply will not stand up in the courts. Not to worry though. If they don't follow through with their words they will be hurt later on where it hurts......Sales.

I'd really like for them just to follow through with their words and get it done!

 

everyone needs to familiarize themselves with the following concepts

1.) Common rail fuel injection
2.) Variable valve timing
3.) Bosch Direct injection (and all 4 burn modes)
4.) Factory airload parameters (learndown)

Then after a few hours of reading
look up

HP tuners (if you are going to tune yourself)
Trifecta (best written code for the E69 ECM)
GM stage 1 /Superchips (for a mild tune with a warranty)

Boost controllers are not needed on this car

 

I agree with Shea561, going after HPT legally will accomplish nothing. In fact it might actually even have a reverse effect they want (IE: They drop the support for the platform). Its not unheard of for this to happen when a group of people are percieved as too whiney.

I'm hoping for progress by spring, but who knows. Like Term I'd also prefer full WG control over fuel right now. I don't see myself switching from a stock frame turbo in the near future, so the fuel control is of limited benefit to me RIGHT NOW. Folks like ZZP feel a lot differently I'm sure

In general I'd say we're fighting an uphill battle. HPT is trying to expand into other vehicle markets pretty hardcore, and to top it off the E69 will become obsolete technology from what I've read within GM itself. Does anyone know if the LNF powered Buicks are running E69's or something newer now? Over the life of the Gen3/4 V8's they've changed the PCM platform a few times too. If this indeed is the case it could be a real pisser since they've pretty much sat on their hands for the 3-4 model years that PCM was in the wild. On the flip-side of that, they appear to be devoting a lot of engineering resources towards cracking what are now quite obsolete Chrysler/Mopar electronics.

I really hope we don't end up strung out and quasi-crippled, but who knows. The icing on the cake, at least so it seems, theres literally 1-2 software engineers working on this stuff full time. They could have 100 for all i know, but it seems like only a couple "chat" on the forum.

Much as I hate to say it, patience is key here. Pretty obvious to me that they're taking a zero-bullshit-tollerance stance from LNF owners right now. They've been locking and editing threads quite a bit over there lately. It sucks that I have more control over my grandpa's Silverado than I do my Cobalt, but facts are facts.

If Trifecta does release a user tunable system, things could get interesting.

 

Umm, if there are legal actions going on, I NEED to know. There has been alot of stuff going on lately between myself and HPT. Mainly, myself getting banned from their forum for putting a little heat on them, and asking questions about the release. The fact that I blasted them for picking up new ECM's and not even remotely finishing stuff they have started, nor even remotely INFORMING us of what is happening.

Not that we would remotely have a case in court, because its our word vs theirs. Its just infuriating. I was holding out to go big turbo, and thanks to Trifecta, I feel safe doing it. But, I would love to see some reimbursement from HPT for credits I have not, or cannot use. But, that won't happen either..

 

At risk of getting banned off the HPT forum myself....

1.) I feel your pain. I've owned a lot of tuning/standalone solutions.. everything from EFILive, AEM EMS, MegaSquirt, Hondata, Neptune, DSMLink, TunerCAT and I'm missing one I'm sure.

This is, by far, the least polished tuning/scanning solution I've owned yet paid a shitload (to me) of money for. From my brief ownership it seems unless the platform interests them HPT modus operandi to release JUST ENOUGH to collect some money. Obviously anything V8 seems interest them

Before this I always used EFI Live for my GM tuning needs, who at least had the ***** to say they just can't fit the E69 into their dev cycle.

2.) Please don't make HPT turn the LNF stuff into abandonware. Well... more than it already is I really dont think anyone has a case against HPT. They never make specific date promises and stay vague on purpose. If we pissed them off enough I could see them saying FU very easily. Until we have another user tunable system, ... just saying proceed with caution.

3.) If nothing ends up happening with the LNF, I'd burn my MPVI before letting anyone else use my 6 unused credits. Thats not a joke either.

We all knew the solution was weak going into it, and shame on us for getting **** teased I guess. Paying first and then expecting meaningful output is always iffy in any aspect of life.

 

Yes, they know they have us in a corner. Hence why I have not really said a word about it til now. I simply asked questions, and they claim "Your posts on our forum & others are getting progressively worse & more aggressive." It's all moot. I have my solutions figured out, and if HPT gives me no more coverage, they give me no more coverage. I will find some V8's to tune, or maybe some other LNFs to tune to use up my credits.

I personally like the scanner, although I have nothing to compare it to. Its glitchy for sure, and the PIDs are something of PITA, but once you get the bugs worked out its pretty good.

I DO NOT have a vendetta against HPT (much to the dismay of others), and they have been a decent company to work with. Albeit, I would appreciate updates when i ask for them, that's their call. Just the biggest thing that urks me is the difference in customer service and support from HPT to Trifecta.

 

The HPT scanner is ok, but it doesnt do a lot of really basic stuff that even a Megasquirt can do. IE: snip out pieces of logs, run MPH timers and some other stuff not worth getting into. They claim they don't have time to work on those features either.

Short of getting on their forum and often belittling paying customers, I wonder what they DO have time for? Your threads getting closed, and then the feature request thread closure was pretty shitty. I didn't know they'd banned you until today either.

I like what I hear and see re: Trifecta, but theres just no way I'd ever let someone internet tune my car. I don't care how good they are. Half the fun for owning a car is tinkering with the ECU

I really can't complain much to be honest. Except for wg solenoid control HPT is providing everything I need. Would be neat if I could control the solenoid instead of shoving a MIG welding tip into a hose.... y'know?

 

Nope. You don't actually get a tune from Vince. You get the fuel, and infiniboost parameters. then you write over it with HPT. Then you tune boost, timing, cam timing, etc in HPT, yourself!!!!

 

Are you saying he'll allow the BCS 100% duty and then the DAL table becomes useful beyond the current roadblock? I assume you have to pay the usual fee too on top of the $500 we have invested in HPT.

Do you know if he can also rescale to use the stage1 TMAP's? I'm getting really tired of my RPD flipping out

Perhaps its time for a new thread if one hasnt already been started on this.

 

You will have a PM here soon sir. Not gonna post EVERYTHING in here, since i have some 'secrets' per say, lol.

 

a 2nd FI set has been done and it doesnt work, way too many issues to resolve (mainly spark and boost over 22*), now since vince has got the fuel maps - maybe someone will try again..

sburg me too.. we meet in lowes off 611 on mondays nights.. come and hang out..

 

It hasn't worked huh? Don't go on the Sky forums and say that. Because there is a certain someone running a GT35R LNF Sky, and IIRC, was pushing about high 400's hp. And thats running BTF's design. It works just fine, since you are pushing about 10 lb/min through it, there is very little fuel going in there.

It works, but its not the best solution to the problem.

 

looks like HP tuners is being left in the dust by Trifecta and ZZP

 

Hehe... we got some tricks up our sleeve guys. No worries.

 

Haltech has DI control doesn't it?