Do I need to post a scanlog of 23 pounds to show you that I'm not? Regardless of what YOU monitor, I do not pull any timing on the 94 octane pump we have here in columbus.
yes, you need to show a scan log that it does not, I will in turn show you a scan log that it does, it is a fact
now let's look at the info you just posted;
you're obviously running a tune since you can get 23 pounds of boost which the gxp won't do without said tune, your ecu tune might not even hear knock much less pull timing for it and I believe it is not hearing knock since you say you can log a scan with no timing pull
my stock ecu is not only capable of hearing knock and pulling timing it does as a fact, it is not only logable the owners manual itself tells you this
the ecu in the gxp pulls timing even with hightest at times more often with regular
on point, our engine DOES run racing fuel when congigured more aggresively and there is obviously a reason for that racing fuel isn't there
It does pull timing, but its designed to do that. I guess somone mentioned that the motor runs at the edge of knock, thats where it prefers to run due to direct injection. Now the head is a fast burning head, so it does not REQUIRE high timing. So like, on an old iron two valve timing might need to be 25 degrees, on ours 5 would be good. The reason the timing is set high, then have timing pulled is due to the flame front properties. Depending there might be a need for higher spark advance depending on cam degree etc.
It does pull timing, but its designed to do that. I guess somone mentioned that the motor runs at the edge of knock, thats where it prefers to run due to direct injection. Now the head is a fast burning head, so it does not REQUIRE high timing. So like, on an old iron two valve timing might need to be 25 degrees, on ours 5 would be good. The reason the timing is set high, then have timing pulled is due to the flame front properties. Depending there might be a need for higher spark advance depending on cam degree etc.
Now that makes sense to me! And if you look at the 07 (colder plug) and 08 (hotter plug) tables that I posted over on the HPTuners site you will see that in one of the spark advance tables that most of the cells are 0 for the hotter plugs.
__________________ #118042 11/18/06 GXP Mean Darkside loaded wo On-Star
MODS: ED IC Pipes, Dejon IC, Magnaflow Catback
~~~~~~~~~~~~~~~~~~~ Pontiac builds excitement... Saturn has rethought it's image...
The time has come for the enthusiasts... NASSOA
Founding Member - Recording Secretary - Northeast ~~~~~~~~~~~~~~~~~~~
It does pull timing, but its designed to do that. I guess somone mentioned that the motor runs at the edge of knock, thats where it prefers to run due to direct injection. Now the head is a fast burning head, so it does not REQUIRE high timing. So like, on an old iron two valve timing might need to be 25 degrees, on ours 5 would be good. The reason the timing is set high, then have timing pulled is due to the flame front properties. Depending there might be a need for higher spark advance depending on cam degree etc.
So realistically where are we on the tuning front. With this swap are you comfortable enough with the amount of options you have to actually tune? Do you feel confident that you are running a safe tune?
My car is staying stock for the summer but winter might be a good time for a turbo swap. Prices on Daves site make it hard not to buy a kit now.
As I see it the wall right now is how to run over 23psi at length without going into limp mode. As set up now, using my manual boost controller with wester's race tune and all mods, I've gotten initial boost spike to 27psi settling to 25psi at 7000. No knock or knock induced ignition retard, just lambda retard because its an early 07. I don't need alky or water injection, I need a way to run overboost without limp mode. My IAT2-reg solution works, but driveability suffers. Lyndon Wester has no tune solution because he doesn't have a car modded to Chris's or my extent to dyno and tune.
__________________
Dave at www.DEJONPOWERHOUSE.com
Currently running 311 rear wheel hp with 16g kit at 25psi
Stocking Dealer for HP Tuners VCM Suites and Wester's tune ~~~~~~~~~~~~~~~~~~~ NASSOA
Founding Member #6 ~~~~~~~~~~~~~~~~~~~
Now that makes sense to me! And if you look at the 07 (colder plug) and 08 (hotter plug) tables that I posted over on the HPTuners site you will see that in one of the spark advance tables that most of the cells are 0 for the hotter plugs.
So what's your recommendation for an old 07, change to the 08 table? with or without plug change?
__________________
Dave at www.DEJONPOWERHOUSE.com
Currently running 311 rear wheel hp with 16g kit at 25psi
Stocking Dealer for HP Tuners VCM Suites and Wester's tune ~~~~~~~~~~~~~~~~~~~ NASSOA
Founding Member #6 ~~~~~~~~~~~~~~~~~~~
What would the differeance be in a old 07 vs a newer one. Where is the cut off point?
Also Dave did you start replacing anything after the dyno of over 350? Reason I'm asking is that teh GM buildbook I have suggests a couple of upgrades with teh LNF motor after I think it was 350 I got it at home I would have to double check before I stick my foot in my mouth.
Location: Rosamond, CA - Home of Willow Springs Raceway
The LNF has a build book? I thought that book was on how to build the LSJ?
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2007 Cool GXP with Darkside Top, 5 spd, Ebony Cloth, Monsoon with Single CD, Sport Pedals, XM, A/C
Mods - Solo Street/Race Exhaust, K&N Drop-in Air Filter, EDAL
So what's your recommendation for an old 07, change to the 08 table? with or without plug change?
Well I have an old 07 with the new plugs and the old tables and I can tell you that with the new hotter plugs that the 08 tables are much smoother. I still don't understand why the TSB does not tell them to update the tables. Drop me a PM if you want me to email you the stock 08 tune so you can take a peek since the HPTuner folks don't want to approve it for the archive over there.
__________________ #118042 11/18/06 GXP Mean Darkside loaded wo On-Star
MODS: ED IC Pipes, Dejon IC, Magnaflow Catback
~~~~~~~~~~~~~~~~~~~ Pontiac builds excitement... Saturn has rethought it's image...
The time has come for the enthusiasts... NASSOA
Founding Member - Recording Secretary - Northeast ~~~~~~~~~~~~~~~~~~~
Location: Rosamond, CA - Home of Willow Springs Raceway
Quote:
Opps sorry I miss quoted there. Your right there. But it does have LNF info. Such as which parts sould be replaced when achieving a certian HP.
I didn't know there was any LNF info in there at all. That's pretty cool.
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2007 Cool GXP with Darkside Top, 5 spd, Ebony Cloth, Monsoon with Single CD, Sport Pedals, XM, A/C
Mods - Solo Street/Race Exhaust, K&N Drop-in Air Filter, EDAL
As I see it the wall right now is how to run over 23psi at length without going into limp mode. As set up now, using my manual boost controller with wes
