wanted to get some feedback from everyone? i bought one and not impressed so far...... i heard a few good things about Hemifever but and again not excited.

 

Which tune are you using? 87 octane? 93 octane?

It woke up my 5.9 by quite a bit at partial throttle. I didn't notice a whole lot of improvement at WOT at low speeds, but any partial throttle at low speeds and WOT at highway speeds both noticeably improved.

It woke my wife's little 4.7 V8 right up in all areas.

 

What seems to be the issue?

 

I run the mid octane tune and love it! Gave me the extra umph i wanted in the bottom/mid range.

Keep in mind these are tuners, they can only do so much.

 

after i did the hughes intake the truck ran great, from idle right on up. the money i spent on the intake was worth it. i did the tuner after the intake manifold swap. on the low tune, no difference expect my gas mileage going down which i did not like. i then ran the high octane tune which coat me a arm and lonf for fuel and gas mileage was still down and not much gain at all. the mid octune seems to do nothing as well with lower octane. i EXPECTED the programmer to do something.... i see no gains. wide open throttle i feel a difference since it revs higher but nothing else....

 

Hughes intake?

FI Air-Gap?

If so, you re-located your IAT.. you'll be better off with a new tune.. it makes a difference.

 

How many miles have you put on it so far?

 

i have the 93 octane tune and use mid grade gas and i went from 13mpg to 16mpg and a noticeable HP gain. she really picks up good when passing someone.

 

Did you tell Hemifever that you had the Hughes intake and the other upgrades? If not, talk to him, you may just need an updated tune. A tune that works the best for the stock kegger isn't going to work the best for the air gap.

 

I don't really notice anything down low but it pulls great once the rpms pick up.