lt1 runs on ls1 computer using modded OPTI
Unless I was reading something wrong with my cal I have, the LS1 Camaro cal only had approx. 25 degrees of timing in the higher RPM/load range (higher KPA of Vacuum), which doesn't seem right to me, I can see that the LT1 has 30-32 degrees in what I would think is the same spot on the chart!!!
Mike
Last edited by Jditlfm; Mar 3, 2009 at 07:29 PM.
i also relized that you had hptuners.. i dont thou i have efi live. i was showing you where it was in efilive in hopes that it was similar in hptuners..
i guess if someone had both efi live and hp tuners they could change those settings using efi live, write them to the pcm and then read the pcm with hp tuners.. only problem is that any custom os may erase these settings.. and you would waste 2 vins...
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if you allready have hp tuners they may be able to make these changes for you. i have read they will swap 4l80e tranny segments for users. (in efi live the user can do this)
Getting the crank position from the cam is easy...from a math standpoint. The cam is turning 1/2 as fast as the crank, So its cam signal times 2 for crank position right? Or divide by 2, hell I cant remember.
Heres the rub I see, If you degree a cam, advance a cam, retard a cam, aftermarket crank that is NOT indexed. Natural cam chain and gear wear. What happens on decel with a worn chain? How do you KNOW where the crank timing is? I mean REALLY know? Is there a way to "synch" it when you get all the cam degreeing done? Does it matter?
Hey I am no Guru, Im just askin'.








