on a stock tune, in the high octane table, why does the timing drop to 23 * at 4800 RPM at wide open throttle? This is on a 1999 WS6. It seems like you would want to hold the timing constant....
Thanks

 

I'm not sure why, but I think GM puts that in all their cars. I have a friend with an LT1 and LT1 edit that had the same question the other day...

 

I believe GM did this at peak torque to prevent kr.

 

I believe GM did it at peak torque to prevent having a higher peak torque from the factory.

 

I like the torque theory... perhaps that's why smoothing out my timing gave me way better torque gains, than horse power.

Oh Another User - nice Avatar man I laughed pretty hard when I saw that! Nice!

 

I did a lot of work on that Avatar. I'm glad somebody appreciates it! Thanks!

 

This very well could be, but I still think part of the reason is that GM wanted a "safe" tune b/c they couldn't tune each individual vehicle. At peak torque cyl. pressure will be the highest so they pulled a little timing as a safety net.

 

Both ideas make sense to me.

I love the SD avatar, too! BTW, is your homepage down, Another_User?

 

The peak torque idea makes a lot of sense to me, thanks. Any other imput guys?

-Chris