The HP Tuners FAQ - Page 4 - Tuning Forum

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Re: The HP Tuners FAQ
Thursday, April 27, 2006 8:05 AM
Maybe my memory is faulty.....

But I think someone had already alluded to that when the whole "1bar/2bar/3bar" idea was being pounded into absurdity due to lack of understanding a while back.

Of course, the correct info was just shouted down then, as usual for most stuff here.


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Re: The HP Tuners FAQ
Thursday, April 27, 2006 8:24 AM
Quote:

This makes all the MAP referenced tables/parameters effectively doubled which i have incorporated into our editor.


Does this mean that there are twice as many values or does it mean that each value is just doubled so the tables have half the resolution?

We had discussed this being the solution to those wanting a 3-bar sensor. This would just confirm that it would work just as well as the current 2-bar program works.

Essentially, you lose the fine-tuning ability and just take bigger steps from one value to the next.






Re: The HP Tuners FAQ
Thursday, April 27, 2006 8:55 AM
that is sexy....


HP Tuners | Garrett T3/T04B | 2.5" Charge Pipes | 2.5" Downpipe | 650 Injectors | HO Manifold | Addco front/rear | Motor Mounts | HKS SSQV | Spec stage 3 | AEM UEGO Wideband | Team Green LSD | FMIC | 2.3 cams | 2.3 oil pump swap | 280WHP | Now ECOTECED

Re: The HP Tuners FAQ
Thursday, April 27, 2006 11:09 AM
doesn't it sound like that GM totally half assed things for us? lol.

I just got my whole deal able to edit yesterday, and I have the 2bar flash on the car... Definitely some funky fresh stuff from the looks of these tables...


-Trailblazer SS - not so custom 6.0L - custom intake - custom tune
- (1) 2.4L on an engine stand (1) blown trans (2) good quad trans (1) eco trans = party

Re: The HP Tuners FAQ
Thursday, April 27, 2006 11:09 AM
BTW....

From what I see you can effectively kill EGR with a simple setting modification


-Trailblazer SS - not so custom 6.0L - custom intake - custom tune
- (1) 2.4L on an engine stand (1) blown trans (2) good quad trans (1) eco trans = party

Re: The HP Tuners FAQ
Thursday, April 27, 2006 11:16 AM
protomec wrote:

Maybe my memory is faulty.....

But I think someone had already alluded to that when the whole "1bar/2bar/3bar" idea was being pounded into absurdity due to lack of understanding a while back.

Of course, the correct info was just shouted down then, as usual for most stuff here.


I heard ya

Yea, I ordered mine on March 20th, it showed up April 20th.

So far, its been awsome to play with. Been scanning both N/A and S/C flashes, and messing with them.




SPD RCR Z - '02 Z24 420whp
SLO GOAT - '04 GTO 305whp
RACER X - '78 Opel Kadett W41 Swap

Re: The HP Tuners FAQ
Thursday, April 27, 2006 12:21 PM
Wild Weasel wrote:

Quote:

This makes all the MAP referenced tables/parameters effectively doubled which i have incorporated into our editor.


Does this mean that there are twice as many values or does it mean that each value is just doubled so the tables have half the resolution?

We had discussed this being the solution to those wanting a 3-bar sensor. This would just confirm that it would work just as well as the current 2-bar program works.

Essentially, you lose the fine-tuning ability and just take bigger steps from one value to the next.


Thats exactly what it is, it takes bigger steps, the table itself isn't any larger.

Also, the S/C program pulls an INSANE amount of timing, I bet with the stock pulley and a readjusted timing table, a stock car can hit over 200whp. They even removed VE from the VE tables (doesn't make sense, more air = more VE) but they compensated by making the ECU think the injectors are smaller than stock . They also pull more timing based on IAT and ECT.





4cyltuner.com - Information Source For 4 Cylinder Tuners
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Re: The HP Tuners FAQ
Thursday, April 27, 2006 12:43 PM
someobody just explain to me why some tables go to 7000rpm and others go to only 6400rpm and 6000rpm?

WTF?!


-Trailblazer SS - not so custom 6.0L - custom intake - custom tune
- (1) 2.4L on an engine stand (1) blown trans (2) good quad trans (1) eco trans = party

Re: The HP Tuners FAQ
Thursday, April 27, 2006 1:42 PM

So does that mean you don't even need the S/C reflash? You can just change the values on the tables and play with timing when under boost.

And if so then all I would have to do is change my '96 ECU to a '97/98 and be good to go?





"The FACTS are always subject to CHANGE once the TRUTH is applied"
"In the entire history of man the only stupid questions are the ones that don't get asked"
Re: The HP Tuners FAQ
Thursday, April 27, 2006 2:03 PM
Pretty much





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Re: The HP Tuners FAQ
Thursday, April 27, 2006 7:09 PM
ROFLOL


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Re: The HP Tuners FAQ
Friday, April 28, 2006 2:56 PM
Added an FAQ on my site about how to convert 1 bar to 2 or 3 bar.





4cyltuner.com - Information Source For 4 Cylinder Tuners
Buy stuff from CarCustoms Ebay! Won't be disappointed!

Re: The HP Tuners FAQ
Friday, April 28, 2006 11:18 PM
There are other cases of GM calibrations which are hacked. And there are cases of pro calibrations which are hacked, too (you should check out some of the old Edelbrock TBI to MPFI conversion calibrations). The 2.0 crowd demanded a supercharger at a reasonable price and GM delivered.

The SC calibration probably has voltage corrections for the injectors which come with the kit. If so these should be saved somewhere. Injector response time changes when the system voltage changes and it can affect driveability, especially things like stalling at idle or after decel. Also larger injectors, especially high impedance type, usually are more dependent on small PW corrections than stock injectors.

Folks will probably be happy just having a way to tune for 2 and 3 BAR calibrations. I'm using a 3 BAR sensor on a converted factory 2 BAR calibration and the lack of table resolution is apparent to me during low speed, low load operation. The 2 BAR timing table in this ecm has 2x the number of MAP entries as a typical 1 BAR cal. I can't imagine reducing the number of MAP entries by 1/3. But going from no timing or fuel control to even a converted 1 BAR cal is a helluva step. I guess we'll have to wait a few more years before the code hackers start changing the OS.

Don't forget that a supercharger is directly linked to engine RPM while a turbo makes boost based on engine load. The S/C PE fueling can be based on alpha-N logic (VE tables using TPS and RPM) since there's a linear relationship between engine rpm and the airflow / air density produced by the S/C. Turbo systems do better if fueling has a MAP based input since air density can vary at the same throttle angle and rpm if the load varies. It may turn out that the best tuning for a turbo still includes a RRFPR as this device has a built-in MAP input. The most important tables IMO will be timing based on MAP and timing corrections based on IAT.

-->Slow
Re: The HP Tuners FAQ
Saturday, April 29, 2006 2:47 AM
Yeah, what most people forget is it totally depends on your application and driving style. Personally i drive a s/c'd LS1 and my driving style is either cruising or flat out so i really couldn't care for part boost tuning or slight richness due to resolution compromises.

Turbo's on the other hand are a different beast where rich mixtures can affect turbo performance and for street driven apps low-mid RPM operation can be suboptimal without the required SD resolution or the desire to run an electronic boost controller for low boost on the street and high boost at the track. Alpha-N or SD tuning is best left for limited street/race applications where boost is mostly predictable at WOT but again for drag race it can lead to inconsistent spooling on the line, depending on your particular launch style.

Due to the nature of the early 4cyl code (no OS/calibration seperation) at this time we will not release across the board custom 2/3bar mods for these, and the GM s/c cals will be as good as it gets for now. We've learnt never to say never however

I'm glad some guys are starting to see great results and many are getting great satisfaction from tuning these cars. Again, apologies for those experiencing delays on shipping but we have had unprecendented demand over the last 4 weeks and should be back to normal shipping next week.

Cheers,

Chris...
Re: The HP Tuners FAQ
Sunday, April 30, 2006 3:35 PM
I've seriously have seen nothing but good things using the tuner software. My daily driving capabilities have actually improved considerably. The car isn't stalling out when coming to a stop, nor is starting from a stop *that isn't a drag launch* a stuttering pain in the ass.

I can't wait when I get some dyno time with this stuff.


-Trailblazer SS - not so custom 6.0L - custom intake - custom tune
- (1) 2.4L on an engine stand (1) blown trans (2) good quad trans (1) eco trans = party

Re: The HP Tuners FAQ
Sunday, April 30, 2006 4:26 PM
protomec wrote:

ROFLOL



??????????



Portage, MI
Re: The HP Tuners FAQ
Tuesday, May 02, 2006 7:01 PM
Shifted,

What's the turnaround time on a car/trans/engine combination that isn't recognized by the hp tuners software??

I just read a 2000 cavalier auto 2.2 LN2 engine today and the software isn't able to recognize the definitions for it.

I sent an email to Keith regarding the issue. Hopefully I hear something soon.

Just curious on your take of the turnaround time.




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Re: The HP Tuners FAQ
Tuesday, May 02, 2006 7:29 PM
Usually about 24-36 hours, email Chris@hptuners as well.





4cyltuner.com - Information Source For 4 Cylinder Tuners
Buy stuff from CarCustoms Ebay! Won't be disappointed!

Re: The HP Tuners FAQ
Tuesday, May 02, 2006 7:42 PM
Thanks for the quick response.

Also, does anyone already have a collection of j-body hpt files? I know of Michael Horist's repository, but there's no j-body material on it yet.

I have the following hpt files so far:
2000 Chevy Cavalier 2.4 auto trans stock program
2000 Chevy Cavalier 2.4 5spd trans gm s/c reflash
2000 Chevy Cavalier 2200 auto trans stock program

Anybody have anything else they'd like to trade? I'd like to collect as much as I can to mess around with. I'm very curious to see hpt files from an Ecotec.




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Re: The HP Tuners FAQ
Tuesday, May 02, 2006 7:44 PM
Send me the files, I'll start a repository of tunes on my site.





4cyltuner.com - Information Source For 4 Cylinder Tuners
Buy stuff from CarCustoms Ebay! Won't be disappointed!

Re: The HP Tuners FAQ
Wednesday, May 03, 2006 9:04 AM
I've got '02 5spd Z24, and '02 S/C 5spd Z24 (sent both to you already Ron) I'll try to scan a 02 LS Sport soon (spent 6 credits on the full '02 license)




SPD RCR Z - '02 Z24 420whp
SLO GOAT - '04 GTO 305whp
RACER X - '78 Opel Kadett W41 Swap


Re: The HP Tuners FAQ
Wednesday, May 03, 2006 12:08 PM
im really curious to see the stock differences between the cavs and sunfires. cause for some reason the only people that have really had troubles with stage 2 cams are cavs. the test vehicles for those cams were fires and my car has them and i have them working just fine.



The one, the only, ME. ,

F$%K ILLSTREET.COM
Re: The HP Tuners FAQ
Wednesday, May 03, 2006 1:31 PM
I had problems editing the file off my friend 02 LS Cav the other day,emailed the file to them. They had an update out within a day and now it works great! So far these guys have done a great job at support!


___________________________________________________________________

15.149 @ 91.26mph 3-18-2006
Re: The HP Tuners FAQ
Thursday, May 04, 2006 5:30 AM
Damn. Their fast. I received 2.1.9 beta overnight that allows me to interpret the 2000 cavalier auto trans 2200 equipped file.




I will NEVER change my sig. HTML 4 EVA!!
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Re: The HP Tuners FAQ
Thursday, May 04, 2006 12:41 PM
I'll have to down load the 2.1.9 again, and get all the new updates.






SPD RCR Z - '02 Z24 420whp
SLO GOAT - '04 GTO 305whp
RACER X - '78 Opel Kadett W41 Swap

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