U7146 Mustang GT 87 Economy Tune

EVOLVEDNOTTAMED · Post by **EVOLVEDNOTTAMED** » Mon May 16, 2011 3:31 pm

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

EVOLVEDNOTTAMED · Post by **EVOLVEDNOTTAMED** » Fri May 20, 2011 12:29 pm

Anyone?

Post by **mikel** » Fri May 20, 2011 2:30 pm

it is a performance tune for low octane, mileage will be similar to other tunes.

EVOLVEDNOTTAMED · Post by **EVOLVEDNOTTAMED** » Mon May 23, 2011 10:11 am

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

cruizer · Post by **cruizer** » Sun Jun 05, 2011 11:59 am

My 2003 GT runs better on 89 or 90 octane with the 87 tune. We have only 91 octane here so not sure how the 93 tune will work with that...

GP-SE · Post by **GP-SE** » Tue Jun 07, 2011 10:02 am

http://www.diablosport.com/index.php?mo ... lay&pid=55
GT 15 rwhp 15 ft/lbs (87 octane)

Running 89 or 91 would help if you get detonation with 87 octane, if you don't get detonation then it wont help, and can hurt performance since, 89/91 need a "hotter" spark to combust compared to 87. (it takes more heat for 89/91 to ignite compared to 87)