I put a new 6.0 in my 13 Tahoe a couple of years back. Exhaust question now.

[Charlie207]

What is the C/R on the hybrid 6.0?

 

[Marky Dissod]

What is the C/R on the hybrid 6.0L?

The Definitive Guide to LS Engine Specs and LS Engine Upgrades

We put everything you need to know about the Gen. III & Gen. IV LS engine family in 1 spot—from cam specs to upgrades & everything in between.

www.onallcylinders.com

LFA 6.0L Engine Specs: Performance, Bore & Stroke, Cylinder Heads, Cam Specs & More

From cylinder heads to the camshaft, here's a complete rundown of all the vital engine specs you need for the 6.0L LFA LS engine.

www.onallcylinders.com

LZ1 6.0L Engine Specs: Performance, Bore & Stroke, Cylinder Heads, Cam Specs & More

From cylinder heads to the camshaft, here's a complete rundown of all the vital engine specs you need for the 6.0L LZ1 LS engine.

www.onallcylinders.com

Both the LFA and the LZ1 have a 10.7:1 scr. Can still handle 87 octane if driven lackadaisically,
although performance MpG and long-term durability would of course be improved by 91 or 93.

 

[CTX-SLPR]

Wondering how much that can be mitigated for regular lightly loaded driving with the DoD delete cam. Still need hightest for towing I'm sure.

I believe they are pseudo-Atkinson cycle engines which have a lat intake closing so it bleeds a bunch of compression back into the intake as well.

 

[j91z28d1]

Wondering how much that can be mitigated for regular lightly loaded driving with the DoD delete cam. Still need hightest for towing I'm sure.

I believe they are pseudo-Atkinson cycle engines which have a lat intake closing so it bleeds a bunch of compression back into the intake as well.

yeah, it's the hybrid cam that allows/requires the higher comp. a standard cam you'd need 93. the hybrid ecm tune is super reactive to retarding timing too but hptuners hasn't defined the adjustment for burst knock and anything besides the basic timing maps.