A couple Gryphon questions, what tunes and octane?

[Jackpine]

Originally Posted by PHS79

For probably the last 6 months all that I have been running is 91 oct. Mainly because I found that I with 91 oct (100% gas) I have seen a 1.5 mpg increase, I went from a average of 15 mpg to 16.5 mpg.

Right now I am currently running my Edge on lvl2 because I didn't like the "lack of lowend" that lvl3 had. Granted the 1 full tank I did run lvl3, just to check mileage, and I got 17 mpg. But the "lack of low end" that the canned Edge tune seems to have, vs lvl2, is the only thing that concerns me about getting a performance tune. Granted the truck seemed a little funner to drive in lvl 3, once the rpms got above 2K or so, but from a standing stop it just seemed like the truck was a slug and didn't even want to move. Which leads me to another question:

Is there a BIG difference between the custom performance and the canned Edge lvl3? Also do Bills performance tunes have more low end power then the canned Edge?

I've never noticed any lack of power in the low end in my two 87 octane tunes. But, I don't really "stand on it" there either. The power curves ARE fairly low below 2000 RPMs though in any tune, I'd guess. And, I've never used my Level 3 tune, so I don't have any basis for comparison.

You'd really need to talk to Bill about this, and that may be difficult in the foreseeable future. He would not blow smoke at you. The trouble with tunes when upgrading is that they're $60 each.

Using your gain of 1.5 mpg with 91, you're seeing a 10% increase in gas mileage. If 91 octane costs 10% or less more than 87, you would be better off using it. My guess is though, the price increase will be more than 10%.

Still, 91 does give you more power than 87 due to the timing increase and the more controlled burn, so if power is the governing factor, go for it.

You could just about copy and paste this entire thread into an attachment you could include with your order form. If you make sure Bill knows what your driving goals are, he'll be able to write the tunes you want.

- Jack

[PHS79]

Originally Posted by JackandJanet

You could just about copy and paste this entire thread into an attachment you could include with your order form. If you make sure Bill knows what your driving goals are, he'll be able to write the tunes you want.

- Jack

Thanks for the idea, I am going to try and do that. I think the upgrade to the Gyphon and custom tunes will be my christmas present to myself

Thanks to both Jack and 88racing for the help!!

Paul