Poor Support - 1999 Buick Regal

[Eric@HPTuners]

I am currently tuning a customers' vehicle with HP Tuners and I am surprised at the amount of missing parameters for this particular vehicle.

All of the idle stuff is missing, besides idle speed.

Engine Displacement is missing

Crank Fuel is missing

There is alot more missing, but these are the main things that are giving me issues right now.

If there is anything I can do to speed up getting this stuff added in, please let me know.

Eric

[Bill@HPTuners]

there is no displacement variable for the v6 code, it is hardcoded based on the engine type. ie. 3800 is hardcoded to 3.8L

I'll see if our engineer can respond regarding the other tables you are requesting. However you will find tables vary from application to application. With V6's there are over 500 operating systems we currently support so even adding one or two tables to each is a HUGE undertaking.

[Chris@HPTuners]

V6 is a lot different to the other platforms, many parameters don't exist or are implemented differently. I have a list of things to do on these platforms such as openloop fuel and a couple other things.

Chris...

[Eric@HPTuners]

Thanks Chris.

It will be awhile before I am working on the car again, as there were some mechanical problems.

Hopefully you have an update out before then.

[Bandit gs]

Ya get used to it, its a real pain going from say and Fbody to the Wbody.

[Mr.Flipflops]

Was there ever any resolution to this situation as far as tables goes? Or is it just something that we are going to have to deal with on my car (the car in question here)?

[Eric@HPTuners]

C'mon guys, if you need the parameter addresses, I can get my hands on them. Either way I need to know if you can get them added in?

I would like to request the ability to define parameters in the software myself. I believe EFI Live offers this ability.

[Bill@HPTuners]

C'mon guys, if you need the parameter addresses, I can get my hands on them. Either way I need to know if you can get them added in?

I would like to request the ability to define parameters in the software myself. I believe EFI Live offers this ability.

It will likely to be a while, there are roughly 600-1000 V6 operating systems we currently support making adding even one table with a known address to each weeks if not months of work. We have several tables on our to do list for them but currently no eta.

We will not be adding the ability to add your own addresses as this opens up all kind of doors that we do not want to get involved with ie EPA and other liability issues.

We have several customers running 9 & 10 second 1/4 times with our software for these applications so pcm limitations are minimal for the most part.

[e85grandprix]

These cars are in the 8's with these parameters, IDK what makes this regal any different? What else could you possible need for a gm v-6 car?

[Eric@HPTuners]

These cars are in the 8's with these parameters, IDK what makes this regal any different? What else could you possible need for a gm v-6 car?

How's the drivability on these 8 second regals?

Not very good, I assure you.

The car runs and makes power now, has made 550, and it would do well at the track, but it is a street car, and needs to be dialed in.

[Mr.Flipflops]

Its completely different when you are talking about a daily driven 9 second car, and a track only car! I put 20k miles on the car a year, take it on weekend trips across the state, race it on a weekly basis and so forth, so drivability is key!

Under WOT everything is there to dial in the car, and the car runs great up top. But as far as idling and cruising and such there are a lot of table that my old software did have that this one does not. And i'd hate to have to go back to the old program to address these issues, but it gets really annoying when you can let off the gas while cruising and the car will keep going by itself and wont idle down, not to mention you have to nail the brakes because the car is stalling up by itself, and keeps the transmisison nice and toasty. It gets annoying really fast!

[Tapout Tuning]

What are the mods on this Regal?

We've done several thousand 3800 tunes, and never had in issue we couldn't find a solution for.

[Mr.Flipflops]

8.0:1 Diamon pistons, L32 rods, ARP everything, Dover-Tech Ported Heads, Stattama ST4 cam, Gasket match LIM, Custom UIM, LS1 TB, 85mm MAF, Precision 725 intercooler, NOS 100 shot, Front PLOG, Stage 6 motorsports rear manifold, crossover and DP. Precision 74m DBB turbo, Aeromotive A1000 pump, -8an feed and -6an return, Ford Racing 80lb Injectors, PRJ Fuel rails, Aeromotive FPR, ZZP 3k stall....those are the majority of the power mods. If you have anything specific that you would like to know about, let me know.

[Tapout Tuning]

I dont' see anything in that mod list that you shouldn't be able to adjust for with the parameters in HP Tuners, with one exception.

Your MAF table will peg at 11,500 Hz., so you're going to need a workaround for that.

[Mr.Flipflops]

I have an AFC that is set lower to compensate for the MAF. I believe it is around 50-60% range across the board.

The main problem that i am having is the idle, and some way to get the IACV to react differently, because the car will isle @ 2k for 20 seconds or so and then go down to 1,500 for another 5 second, and then back down to 1k where it needs to be. This goes for when it is going down the road and when I am stopping. I can try to get a video of what i am talking about.

[Tapout Tuning]

I have an AFC that is set lower to compensate for the MAF. I believe it is around 50-60% range across the board.

My recommendation is to rescale your AFC to 80%. Then adjust your injector size to compensate. After this, all your idle tuning issues will become much simpler to address.

[Mr.Flipflops]

You mean to rescale it only at the lower levels correct? 1k-5k range i am guessing, because i know on the top end i would MAX it @ 70% on the AFC, and this is only on low boost. Unfortunately i have been limited on boost, and i don't want to get into trouble when i get into 25+psi.

[Tapout Tuning]

The less correction you use in the AFC, the easier this car will be to tune, and the better off you will be. Also, the more linear you make your AFC changes, the better. So a 20% across the board scaling is much better in my opinion than 0% at one point in the table and 30% somewhere else.

On our highest boost 3800 applications, we've been able to idle as smooth as stock and still go beyond 30 psi. This was done using the small LT1 MAF sensor and scaling the MAF frequency electronically by 20%.

[Mr.Flipflops]

Right now the AFC is scalled straight across the board to adjust the entire table by the same %age. But i do understand what you are saying. What would you recommend for a maximum adjustment between frequency's on the AFC? 10%?

[Tapout Tuning]

Right now the AFC is scalled straight across the board to adjust the entire table by the same %age. But i do understand what you are saying. What would you recommend for a maximum adjustment between frequency's on the AFC? 10%?

Not sure I understand your question...