how much timing you running at WOT with zero KR?

 

...on my Radix blown L33 5.3 @ 9.9:1 and no KR and just barely reaching 6 psi boost.

 

12, but I still have other kr issues which I might add, I believe is in direct correlation to the compression ratio. I will get kr if I snap the throttle and let off...0% to 80 or 100% for just a "blip"...but if I floor it from a stand still...no kr. I have lots of kr in the low speed/heavy load area. I do have a WB o2 but haven't finished hooking up to see how my timing and ve are doing at WOT with afr in consideration. That 12 degrees is with race or pump gas.

nevertheless...12 with no kr. I'll see kr at 14 for sure. My compression is an estimated 10.2ish maybe just maybe a 10.5...5.3 heads(shaved .010) on the 6.0L

oh yeh...8psi of boost

 

14-15 on the LQ9 with cam and radix. 0 KR. I think there is room for a few more ticks in my case. 8psi using the 2.9".

 

keep me tuned in...your running over 10:1 compression?

 

i've managed to program them to run over 20º on SS trucks when the IAT is under 100 with no KR*. i have the logs to prove it. one of the trucks has a 2.8 pulley also. by the end of a run the IAT's will creap to around 150 or so and i have it pulling the timing to down around 15-17 if i recall.

 

10.2:1 CR and 8.5psi running 93 octane. 18-20* timing in 80-90* weather and a bit less when its really HOT. 90% om my KR shows up on WOT downshifts or under loads accellerating at low rpms.

 

Stock kit 7 lbs boost 2001 5.3 9.3 comp ratio 91 octane 17-18 deg / 103 VP race gas 22-23 deg
small pulley 10 lbs boost / 11-12 deg 91 octane / 17-18 deg 103 octane / 21-22 deg with 109 VP race unleaded.

 

oh yeh if it was a race of all races and one shot to show my stuff, I'd definitely want to take advantage of the low IAT, some high octane, and the meth and get a 20* run. But for the most part of everyday driving I can't seem to keep that kr away at 15 or even 14 on a real hot day. Something is amiss in my setup...I'll get it. It should be as BigTex's descirption is...18* unless it's F-ing hot out.

 

in order to have alot of timing like that you need to run a really well worked over IAT table. one thing i've noticed in tuning a radix truck is that if you have one with a small pulley on it the downshift you'll always get some kr*. if you program it out you'll lose some on your driving in the time that you're in the same range, but not under the same load. a radix with a small pulley will actuall make up to 5psi of boost before the trans makes the downshift.