That's cool.I just wanted to make sure, that why I posted on here.I have been given wrong info before when calling the tech line.Thanks for your help.

I called there today and talked to some one in the tech department and they said it would not work.

I just found out it is a 3.9.Will it still work?

Will the U7146 Predator work on a 2004 V6?I am selling it and I am not sure if it their car is a 3.9 or a 3.8.

how would 91 be safer?My tuner only has a tune for 87 or for 93 octane

2004 Mustang Gt 4.6 2 valve U7146 93 octane tune.Is it okay to use 92 octane?

What kind of HP numbers?Would it do any better with 89 octane on that tune.

Anyone?

What is the 87 Economy tune the is in the predator?Is if for performance or is just a tune for better fuel mileage?

So it's percentage then.Makes sense, thanks!

So say I was at 13:1 A/F If I went rich .5 that would put me back into 12.5:1
right?

Thanks for clearing that up for me.I was wondering.

I want to add a little fuel in the 4K-7K range.I was wondering how I would do that in the predator.I manual says negative value adds fuel, but on the screen it has lean stock rich.Do I move towards the rich or toward lean to add fuel?

I see that Diablosport claims 20 RWHP on premium and 15 RWHP on 87 octane.Any one ever confirm that on a dyno?I've heard it is more like 6-9 RWHP.

Have you done that before?I don't know why the manual makes so many things complicated.