Saturn ION RedLine Forums banner

1 - 20 of 136 Posts

·
Registered
Joined
·
1,507 Posts
Discussion Starter #1
So, there has been some talk about getting some of the tuning suppliers to unlock the Stage 3 PCM for tuning. While there are companies working on the project... it's a very low priority, with low interest.

Because I have a friend with a vast amount of software engineering know-how, I brought up the challenge of converting a GM Stage 3 file to a file with an attached VIN... allowing HPT to license it. As well, time pending, he might look into unlocking the AC algorithm, so we can make it street able.
He told me that he would take on the project... but would need some information first... namely reads from both stock and Stage 3 PCM's from various years and models (04, 05, and 06-07 PCM's, SS and RL).

If anyone with the Stage 3 kit has access to HPT, or vise versa, can you take a read and email it to me? I'd like to see something new opened up, with respect to toys for the LSJ.
 

·
Registered
Joined
·
1,681 Posts
hmmm...Y hasn't the A/C thing been messed with before? I mean that to me would be pretty easy to break....?...maybe i just don't know what im talking about....

Now that i look at it, its only a 9hp increase over stage 2....sooo unless ur gonna run nitrous it would be no real benefit for me.....

also seems that since teh stg3 is not emissions certified that it runs RICH! but i gues that would be the point of tuning it...
 

·
Registered
Joined
·
1,507 Posts
Discussion Starter #3
The reason why we're looking into the S3 calibration, is for the additional integrated features; high octane mode, rev limit adjust on demand, and the on-board nitrous controller.
Basically, this system is perfect for the guy who has an LSJ as a daily driver, but regularly takes it to the track.
 

·
Registered
Joined
·
11,403 Posts
I don't have a stage 3 pcm, but, if HPtuners could tune one, I would have bought one a long time ago. Very interested in hearing about any news on this.

I honestly can't believe GM thought it was ok to sell the Stage 3 kit without being able to modify the tune. Before it was released, the info I had seen made me assume that GM was going to have their own tuning software for the PCM. I was very disappointed that it did not materialize that way. They made the whole thing a joke, really.
 

·
Registered
Joined
·
1,681 Posts
The reason why we're looking into the S3 calibration, is for the additional integrated features; high octane mode, rev limit adjust on demand, and the on-board nitrous controller.
Basically, this system is perfect for the guy who has an LSJ as a daily driver, but regularly takes it to the track.

good point....just thinking aloud here....

high octane...whats the octane of e85? isnt it close to 100?

rev limit....i thought ive read that these engines are close to useless after 7k.

the automatic nitro would be cool i guess....
 

·
Registered
Joined
·
1,507 Posts
Discussion Starter #6
good point....just thinking aloud here....

high octane...whats the octane of e85? isnt it close to 100?

rev limit....i thought ive read that these engines are close to useless after 7k.

the automatic nitro would be cool i guess....
E85 is about 102 octane. In that case, HOM could be used for running track fuel, like C16.
For most other people, that don't have access to E85, HOM is great for w/m injection.
A misconception, is that HOM is limited to 100 octane fuel... but actually, it just eliminates the bias between the high and low tables, and forces the high table only. ie; run maximum timing, all the time.

The rev limit, again, is a track thing. Run a safe 7k-ish on the road, but at the track, bump it up to avoid the limiter. If you're running after market springs, 7500 is safe to run daily... and up to about 7800 in short bursts.
 

·
Registered
Joined
·
1,681 Posts
E85 is about 102 octane. In that case, HOM could be used for running track fuel, like C16.
For most other people, that don't have access to E85, HOM is great for w/m injection.
A misconception, is that HOM is limited to 100 octane fuel... but actually, it just eliminates the bias between the high and low tables, and forces the high table only. ie; run maximum timing, all the time.

The rev limit, again, is a track thing. Run a safe 7k-ish on the road, but at the track, bump it up to avoid the limiter. If you're running after market springs, 7500 is safe to run daily... and up to about 7800 in short bursts.
gotcha gotcha..the table thing is the answer i was looking for....

the track thing is understandable...to avoid it.
 

·
Registered
Joined
·
1,507 Posts
Discussion Starter #8
The thing is... we can do most of this stuff already with other aftermarket means.... but if we can get a few files lined up and do some digging, we may be able to get this for free.
 
1 - 20 of 136 Posts
Top