Bmr4life

Doesn't matter. I'm pretty sure the OP wasn't racing a 5.0. A 2010 is still a 4.6L so that's no different. Even if the car had 3.73, it was still stock and a tuned auto with 3.31s should beat that with that being the worst case scenario for the OP. If he's a manual, he'd do even better. A CAI with a proper tune makes a huge improvement versus stock.

AMChrisRose

Yeah, regardless - I'd be willing to bet that this is completely a tune issue. I think that if you were to get a good aftermarket mail-order custom tune, you'd notice a night/day difference in horsepower/torque, throttle response, mileage, driveability, etc.

Give our tuning specialists over at Bama Performance a call if you'd like. They can write you a killer set of custom tunes (Street, Performance and Race) for whatever octane fuels that you're running and your style of driving. Plus, you'll get Free Tunes for Life, in case you every need any updates for future modifications.

Hope this helps! Let me know if you have absolutely any other questions, whatsoever!

Chris

Nuke

The 20" wheels, unless super-expensive for low weight, probably added about 25-50 lbs of rotational mass. The decrease in drivetrain losses from the UDP's and aluminum DS (neither one ADDS crank HP; they simply reduce loses) are being negated by the new loses from the wheel weight. 20" wheels have always been a sore spot for many; either looking like *** or zapping power or both. I'll take less metal ands more rubber any day.

And then there's your tune issue...!

SeVeReDiStOrTiOn

Don't think he has an aluminum DS

csmoore88

Thanks all! I am truly grateful for this forum and your input. U have saved me headache and money. Now, I bought and installed a sss Adrenaline axle back. I feel a significant increase in torque in low end. The car I mentioned was a 2007 gt . However, I was wrong about mods, as I learned it had a cervini (functional)) ram air hood and frpp stingers. Still, that is not enough to overcome a car equipped and tuned the way mine is. I value your input on the wheels but. I must concede on this issue because I like them enough for a small loss in power. I know that is counter intuitive as it is counter productive. But they look great and I don't have the means for ultra lite right now. I guess I will order my bama tune today, as well as the 4'10 gears from frpp. Enough of my babble, thanks mfers you are the most valuable tool to people like me. Maybe one day I can give advice too. Lol

Bmr4life

I hate to have to tell you this but axlebacks do absolutely nothing for power.

Swoope

yep,

wheels and tires.

beers

csmoore88

OK. Bmr, although I appreciate your condescension, I am compelled to disagree. After significant research I have learned that running straight pipes makes the car run too lean, risking valves being burnt. Evidently(and I have NEVER claimed to be mechanically inclined), the inlet/outlet of fuel and air is a complicated symbiotic relationship. It all works together with specific ratios and mixtures. (14.7:1) I believe. Anyhow, when there is no back pressure the fuel is expelled too quickly from the combustion chamber causing less combustion/power. The fuel is not burnt as efficiently AND there is already too much air to fuel. This also presents a problem concerning proper pressure (both positive and negative) for the cam overlap. So, if you insist on patronizing me while I try to learn this magnificent car, please leave me be. The others on this forum are helpful and friendly enuf. Without you. The difference in power is certainly there, I would know, I drive her everyday. Thanks mfers.

Bmr4life

The freak are you talking about? All I said was axle backs do nothing for HP. Its well known man. No one's being condescending, lighten up.

I re-read what you posted. I don't think you know what axle backs are. Axle back refers to the muffler portion of our exhaust. The part behind the axle, nothing else.

I'm really trying to understand what I said that cut you so bad. Was its the "your tune is ***" line? That was not directed at you, it was directed to your tune which can easily be corrected. Perhaps I should have said "your tune is not optimal". Sorry either way.