Piedmont Custom Motorsports had a dyno day today so I took the Firefly down to see how much difference the tune made.
Last time the numbers were 357.80 and 336.60 HP and torque respectively, not bad on a stock car with 15K on the clock.
Today's numbers were 372.94 and 341.71, a gain of 15 HP and 5 lb/ft respectively. Adding in the estimated 16.5% loss from the automatic driveline gives me 446.6 HP and 409.2 lb/ft at the crank. This squares with the fact I put up better numbers than an unmodified Boss, which is rated at 444HP at the crank. It also verifies what the seat-of-the-pants dyno suggested, that the tune made a noticeable difference.
I think I like it.
Getting There
10 months ago
4 comments:
Good to see you're catching up...
http://mcthag.blogspot.com/2013/04/what-i-did-today.html
Ha ha. How many cubes does it take you to do that again? ;)
Thanks for dropping by McThag!
Careful, the ricers started that HP/L stuff... You don't wanna end up with a book shelf on your trunk lid and a 47 speed transmission!
All in all I am constantly amazed at how modern cars perk up with a quick fiddle of the code without any loss in mileage or drivability.
One thing about the new Mustangs I do hate though, that damned headrest! No matter what I do, that thing keeps smacking the back of my head. It's a deal breaker for a car I'd otherwise be happy buying. Which kinda sucks since the Camaro and Challenger are kinda bloated.
Ta da! Tilting headrests!
http://www.mrt-direct.com/11a100.html
I have a set (first mod I made, in fact) and they make all the difference. Of course the new ones have tilting headrests from the factory now.
Post a Comment