[Z06] Just uploaded the stock LS7 flash file-unbelievable!
01-24-2006, 11:09 AM
#1
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St. Jude Donor '09
Just uploaded the stock LS7 flash file-unbelievable!
I haven't had time to look at everything yet, but wanted to share some incredible information about the air fuel ratio the factory installs in the Target PE/RPM Table for WOT and load on the C6 Z06.
It is all over the map! In fact, in some rpm bands the a/f ratio changes every 250 rpm.
At 5,000 rpm, the target a/f ratio is 11.1:1! I wish I could copy the graph for this table, it is simply the most bizarre target a/f ratio I have ever seen.
More later today. I'll be programming our Z06 and dyno testing later today.
http://www.corvettels7.com/forum/showthread.php?t=32
Jim Hall
It is all over the map! In fact, in some rpm bands the a/f ratio changes every 250 rpm.
At 5,000 rpm, the target a/f ratio is 11.1:1! I wish I could copy the graph for this table, it is simply the most bizarre target a/f ratio I have ever seen.
More later today. I'll be programming our Z06 and dyno testing later today.
http://www.corvettels7.com/forum/showthread.php?t=32
Jim Hall
Last edited by Halltech; 01-24-2006 at 10:07 PM.
01-24-2006, 11:13 AM
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St. Jude Donor '09
Originally Posted by MAJ Z06
Why would they do this, has to be some reason?
Torque management:
http://www.corvettels7.com/forum/showthread.php?t=32
Last edited by Halltech; 01-24-2006 at 10:08 PM.
01-24-2006, 11:15 AM
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Jim if you are using Windows XP you can use the old trusty print screen button on your keyboard to copy the screen, then you can go to the built in "MS paint" program (or any other image editing software) and simply paste the picture of your screen. Better instructions below
How to take a screenshot
How to take a screenshot
01-24-2006, 11:30 AM
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St. Jude Donor '09
http://www.corvetteLS7.com/PE_RPM_Table.JPG
http://www.corvetteLS7.com/peRPMtable2.JPG
Thanks for the tip. Sorry about pics. too big for the forum...go to the links.
http://www.corvetteLS7.com/peRPMtable2.JPG
Thanks for the tip. Sorry about pics. too big for the forum...go to the links.
Last edited by Halltech; 01-24-2006 at 11:47 AM.
01-24-2006, 11:52 AM
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St. Jude Donor '09
Originally Posted by OsinO
I dont mean to get off track, but man what do you have like a 24" monitor or something? 
Here is the Rev by Gear asked for:
http://www.corvetteLS7.com/revlimitbygear.JPG
The rest of this information will be posted on www.CorvetteLS7.com tonight or this afternoon.
Got to run. Programming and testing our filter system.
01-24-2006, 01:06 PM
#11
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Originally Posted by Jim Hall
I haven't had time to look at everything yet, but wanted to share some incredible information about the air fuel ratio the factory installs in the Target PE/RPM Table for WOT and load on the C6 Z06.
It is all over the map! In fact, in some rpm bands the a/f ratio changes every 250 rpm.
At 5,000 rpm, the target a/f ratio is 11.1:1! I wish I could copy the graph for this table, it is simply the most bizarre target a/f ratio I have ever seen.
More later today. I'll be programming our Z06 and dyno testing later today.
I need a screen print program, if someone has a link for one.
Jim Hall
It is all over the map! In fact, in some rpm bands the a/f ratio changes every 250 rpm.
At 5,000 rpm, the target a/f ratio is 11.1:1! I wish I could copy the graph for this table, it is simply the most bizarre target a/f ratio I have ever seen.
More later today. I'll be programming our Z06 and dyno testing later today.
I need a screen print program, if someone has a link for one.
Jim Hall
I tell ya, these cars are sooo de-tuned, I can't wait to really start messing with mine PCM.
01-24-2006, 01:19 PM
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Don't laugh at me guys.But In laymens terms you are talking about a fluctuating air to fuel mixture?I may be Moran but not a Moron. 
So the bottom line is whatch out when you guys can really tune this thing.Sounds
So the bottom line is whatch out when you guys can really tune this thing.Sounds
01-24-2006, 01:19 PM
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St. Jude Donor '09
Originally Posted by bernrex
Perhaps its intentional ... trying to confuse the engine and keep power levels down. No wonder TQ is only 470. 
01-24-2006, 01:22 PM
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St. Jude Donor '09
Originally Posted by tolgademir
Jim if you are using Windows XP you can use the old trusty print screen button on your keyboard to copy the screen, then you can go to the built in "MS paint" program (or any other image editing software) and simply paste the picture of your screen. Better instructions below
How to take a screenshot
How to take a screenshot
Thanks for that tip. Never knew that, and I build computers for a hobby!
01-24-2006, 01:41 PM
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St. Jude Donor '09
Originally Posted by Myhardtop
Jim, now your are seeing one of the reason why my otherwise bone stock car made 481rwhp using my prototype "CAI" while maintaining a very rich A/F ratio (10.8). During my dyno runs, we saw a total timing of 22* at WOT and 26* at part throttle. All this with an ambient temp. of 52* and inlet air temps at 76*.
I tell ya, these cars are sooo de-tuned, I can't wait to really start messing with mine PCM.
I tell ya, these cars are sooo de-tuned, I can't wait to really start messing with mine PCM.
-12.5 is just -1 more than the base car. Compression ratios make this necessary.
The stock Z06 gets plenty of cold air through the front fascia duct.
