After reading a few posts about blown engines, I'm a little worried about my tune. I am running a RWTD tune with timing set at 17*. My A/f is good (WBC), but now I'm thinking about the timing. I always run Amoco 93 and it runs great with no audible detonation. I am seeing 13lbs of boost on the stock eaton. I have 15 and 17 degree tunes from James, maybe I should run the 15 degree tune? Or is 17 degrees safe with no pinging and good A/F?

Thanks, scared in Fla.

 

If your not pinging there is no problem. If your that worried step back to your 15 tune.

Rich

 

I have never heard any pinging at all. How many others here are running 17 or more?

 

19 degrees on my street side ....21 on my race....

 

Ouch!

 

lol...I wouldnt worry about 17 degrees too much, especially with a wideband for added protection to monitor air fuel.

 

Chesster- I'm running the 17* RWTD tune as well. In the last few days the temp has dropped and the L has turned into a beast! No detonation yet but I'm running alchy injection. I have the same mods as you but I'm seeing closer to 12psi.....what did you do to your airbox?

 

in the 20's on my race tune

 

Ported eaton 15-16psi, 18* timing, 93 oct. I run that untill it get's below 50* and then I run 16* of timing. A/F stays 11.6-11.8 for pump gas ( 93oct )

 

17* street tune on 91 octane and 20* race tune with the good stuff. Got to love high elevation.

 

16deg here on 93oct, if use 91 octane she'll ping on the top end and I bump it down to 15deg.

I accidently found out what too much timing was on my truck, 20deg on 93oct, I plug the tip of a spark plug off while at WOT..