Topic: Another potential option for High Boost

[oldskool]

http://www.cobaltss.net/forums/showthread.php?t=175487

I highly encourage you to read the entire post, but below are the cliff notes and some other things i've read.

Vince of Trifecta tuning has basically rewritten the LNF OS to allow open boost control with no ceiling.  He sells the tune with a flash/scanner or something similar, and i'm not sure if the tune is editable with HPT.  His work is primarily on our FWD cousins, the cobalt/hhr ss.  I'm sure it would be easily adaptable to the kappa.

This is nice for those who want to push the midrange on the stocker, but big turbo boys (like i hope to be before years end) will appreciate being able to run 25-30+PSI

He seems to be soliciting beta testers in the thread...

Other things i've read in my travels:  Vince is also working on a crack for the fuel system that will allow adequate fueling for over 400whp.  Our stock high pressure pump maxes at 2150PSI due to software limitations, but is capable of 3000+PSI

[lil goat]

As with all things tune related it is surprising how fast when one tuner opens something up, the others suddenly have a "break through" I have heard of Trifeca, they have been the go to guys for the Coblat SS crowd for some time. They throw rocks at Lyndon Wester but never heard of any of them actually trying a tune from him. I quit reading those other boards, to much hype. I do believe if Trifeca say they can do it they most likely can, it's the other piss ants that annoy me.

"my Cobalt SS has 500 hp and all I did was install a new exhaust and a BOV that quacks like a duck"

[snaponbob]

Chris at HP Tuners apparently lifted the cap as well. He said they will be making the newest beta next week. Sent another e-mail to Lyndon.

[Ben L]

Am I fooked in the head to say that I really don't want more boost, just more torque/hp earlier and further down in the RPM range?   

Would more boost help with that?  I think probably not, unless it came "on" earlier.

Having the car peak out at 5500 right at the braking or lifting point (where all boost is dumped) is not doing me any good.  It takes too long to build power rolling on throttle out of the turns.

Guess the more boost the merrier for dragging, where you mash it to the floor all the way down, so it probably would be good for that.

"More" isn't necessarily what I'm after in my tune at this point.  Different power curve, now you're talking!

[oldskool]

Am I fooked in the head to say that I really don't want more boost, just more torque/hp earlier and further down in the RPM range?   

Would more boost help with that?  I think probably not, unless it came "on" earlier.

Having the car peak out at 5500 right at the braking or lifting point (where all boost is dumped) is not doing me any good.  It takes too long to build power rolling on throttle out of the turns.

Guess the more boost the merrier for dragging, where you mash it to the floor all the way down, so it probably would be good for that.

"More" isn't necessarily what I'm after in my tune at this point.  Different power curve, now you're talking!

I make 22PSI by 2500RPM.  It would make boost earlier, but i've read that we cannot control lambda below 2500rpm - it maintains lambda = 1.  I would think with the Wester's race tune, you should have plenty of torque as low as 2500 RPM.  Or are you referring to truely part throttle situations, because that is all in tweaking the DAL table. 

I don't think you're crazy for wanting that.  26PSI or so from 2500-5000 RPM would make crazy torque for carving corners, so yes, higher boost is still for you

[LatinVenom]

Oldskool,
I am assuming when you say "I make 22PSI by 2500" you are smashing the throttle all the way down, as oppose to part throttle or half pedal.

[oldskool]

That is correct.  The point is if you want it to load up part throttle, I think you could adjust the DAL tables to be flat from like 50-100% ECT.  I personally wouldn't want to drive it that way, but it sounds like Ben L is looking for part throttle response

[Ben L]

Correct.  While we go WOT once the wheels are straight, I'd like to feel some more grunt between shut and WOT as you roll on throttle and straighten out coming out of a corner.  The "drive by wire" throttle is taking a lot of getting used to.

[oldskool]

Correct.  While we go WOT once the wheels are straight, I'd like to feel some more grunt between shut and WOT as you roll on throttle and straighten out coming out of a corner.  The "drive by wire" throttle is taking a lot of getting used to.

Well the table is there to make it happen; maybe you can ask Lyndon about it? 

I HATE drive by wire.  Even when you floor it, there is a hesitation between the throttle plate fully opening.  This is very apparent on HPT logs.

I wonder if HPT can unlock the necessary tables to make the pedal position always equal the throttle position?

[lil goat]

I am going to go play Auto X with Ben in a couple of weeks, I have a very different setup. no CAT and a hot test tune from Lyndon. We can take some scans and send them up to see if he can do what Ben wants. I also have a Dejon IC, tends to add torque too.

[tazz]

All tunes are not created equal the one with the best overall tuning for every condition is the one people should be looking for.
From any tune you want reliability and power with no issues.  A tuner could possibly do almost anything but at the end of the day the said tune needs to be reliable so as not to cause any issues.  I'm not going to come out and say who I believe is the tuner that's most reliable and who Id trust to tune my vehicle but it will be the one that's knows the vehicle the best.  If there tune doesn't have as much boost or as much power at the end of the day I know that it will be the best at reliability over everyone else's.

[lil goat]

All tunes are not created equal the one with the best overall tuning for every condition is the one people should be looking for.
From any tune you want reliability and power with no issues.  A tuner could possibly do almost anything but at the end of the day the said tune needs to be reliable so as not to cause any issues.  I'm not going to come out and say who I believe is the tuner that's most reliable and who Id trust to tune my vehicle but it will be the one that's knows the vehicle the best.  If there tune doesn't have as much boost or as much power at the end of the day I know that it will be the best at reliability over everyone else's.

Well put, if a tune is smoother then the factory tune and has more power that makes it a good tune to me, not every tune I test is silky smooth to start, thats why they are test tunes. I have helped develop 2 different tunes that got the ready for the masses seal, both are smooth very fast and reliable. I love a tuner that keeps working to make his tune better, and doesn't just sell everyone the same tune.

[LatinVenom]

And that is what makes a Dyno such a good tuning tool.

[lil goat]

You can't tune for smoothness on just any dyno, you need an eddy current dyno with a big honking box that allows you to set different conditions at different speeds and loads, it can simulate up hill down hill, some can even do rain and snow. The best are made by Super Flow, that is what the tuner for my Harley uses and he does an average of 25 to 30 pulls to get a smooth tune, very few are at WOT. This is what Lyndon does as well, he also has a Super Flow, this is why it seems to take forever for him to get a tune he wants to sell. Lots of testing.

[LiquidPT]

Interesting... they're local to me...