The gas engine catalysts I work with are rated to a steady state working temperature of 950C, and the exhaust gas itself is almost always higher...so if that tells you anything...

 

I messed around with cruise AFR and timing to try and get it down and never made much progress going through a big range of values. Sensor package really wasnt good enough to do WOT testing with that. 18 or so degrees of timing at 11-11.5 AFR.

 

I guess I am glad I got the Super Alloy exhaust valves then.

 

I put the inconel ly6 valves in last time I had my heads apart. They seem to do fine, I guess.

 

Mine are the Ferrea Super Alloy.

 

This is back on the table. Looking at twins again.

 

Good. Twins are nice.

 

Wheatley is convincing me a single will do it. S400SX-76R 1.10 76/92 T4

From forced inductions.

 

Yea youre gonna be bored so fast with that turbo

But than again no turbo that makes the top end you want will spool as fast as you want. Pretty sure I sound like a broken record by now

 

Has anyone here ran twin borg warner efr turbos? It looks like agp makes a kit for an gen 5 Camaro with those, they may be worth talking to just to get an idea.