330hp vortec crate motor timing issues

[hog]

So you disabled the stock referenced FPR thats part of the spider inside of the plenum?

Interesting.

thanks

peace
Hog

[Age08]

I didn't disable it. I just put a external one on the return line at the tank which basically
renders it useless after 65psi. Which I am now running a lot higher above that and the external fpr I am using
has now manifold reference line so it just maintains set value, I believe all the new ls stuff that use the
returnless fuel systems run the same way by not have a manifold vacuum reference.

[joecar]

Correct, the returnless systems run an un-referenced FPR in the tank.

[EagleMark]

12 to 1 AFR would be fine on Gasoline, but lean for E fuel from most pumps...

Then there's issues with Wide Band setup, it's a Lambda controller converted to AFR... give up the AFR and go Lambda and shoot for .84

[Age08]

So I had a chance to run it with the changes, but I'm still getting 8 degrees retarded @ WOT I forced 32 degrees on the timing table.

Heres a copy of my log, and tune file Log_0027.efi 5.7BLazer_sd.tun

[hog]

As soon as you hot WOT the KR starts. Hmmmm....

peace
Hog

[Age08]

Is there a pid to log raw knock sensor data for the 411?
If it was dentition that knock retard would be coming in more so during
Part throttle cause it runs a lot higher timing and learner,

[joecar]

Try GM.KNCKCNT.

[Age08]

The gm.knckcnt pid doesn't work for my truck,
I tried chaning the burst knock min coolant temp to 140 And also slightly desentize the knock sensor multiplier after comparing it a LQ9.
I am down now to 1-2 degrees retard under WOT.
Now I got another issue my trans holds first gear until the motor hits the rev limiter then shifts.

Log_0007.efi5.7Blazer_sd.tun

[joecar]

Move the WOT 1->2 MPH and RPM parameters both down and see if you get the shift... then move one of those up to get the shift at the MPH or RPM you want.