Shhernandez74

[MENTION=174015]Summers22[/MENTION] that's right I guess I'll have to see what happens with mine lol. Another question (sorry I'm really new to this) why are we adjusting the timing? Is there a certain octane I should use with these tunes?

Bossgame

http://www.jegs.com/InstallationInst.../367-15051.pdf

Pdf of the manual on jegs. This is what I used.

Summers22

iTrader: (2)

If you adjust timing to the plus side (only AFTER) running a tank or 2 of higher octane gas, then it will increase performance. Do this with caution. Even though I only run 91 octane, my timing is only bumped by +.25 to stay conservative.

Shhernandez74

[MENTION=180917]Bossgame[/MENTION] thanks! That was definitely helpful!! [MENTION=174015]Summers22[/MENTION] what would happen if I adjust everything else except that timing? Would that be an issue of cause problems?

Summers22

iTrader: (2)

You can adjust everything else and not the timing, wont hurt a thing.

Shhernandez74

[MENTION=174015]Summers22[/MENTION] cool I'll go ahead and do that, I'll post my results. And thank you everyone else for the input!

08silverbullet

I'll post my setup here also.

2008 4.6 Screw
Running on lvl 2 with 89 octane
+ 10 for shift firmness all gears
+.50 on timing (again as summers said listen for pinging)
Set tire and axle size and now I have fun with it she has a CAI and a single chamber muffler dumped b4 the rear axle. I love it think I have her dialed in perfect just play with your settings until you find the ones you like. And don't be afraid to ask questions I was in your position almost a year ago when I got my Evo. Believe me I asked a ton of questions.

08silverbullet

So I emailed Bill at PHP last night and asked him about timing and octane this is what he wrote back to me today.

The canned Evo tunes are a touch conservative, so you should be able to add 2-3 degrees to the canned 87 Octane tunes without any concern at all. If you run 89 Octane, you can add up to 5 degrees.

It does not hurt the ECM to reflash it. I've reflashed test PCM hundreds, if not thousands, of times without incident. You shouldn't have any worries.

Now I haven't done this yet but almost everyone I've talked to swears by PHP and Bill so.

Summers22

iTrader: (2)

Please set your timing to plus 5 degrees and take a test drive and tell me how it runs. Now, Bill is 100000000000000000 times smarter than me, but I wouldnt trust that on my truck at all.

08silverbullet

I'm kind of nervous to do this lol I've read that a guy on another forum was running plus 4 on 87 with no problems