bigdpro21

Ok so for christmas I'm goin to be getting: a steeda cai, bama tune, accufab 84 mm throttle body, 4:10 gears, a stainless works retro catback chambered exhaust with an off road x pipe, and an oil seporator for my 2012 auto mustang gt. what kind of 0-60, 1/4 mile, and hp/torque increases should I see?

Thanks

Defiant 5.0

You should dyno and time to let us know.

RCE EATR

with the mods you listed with good traction, you should see low 4 second 0-60, low 12 second quarter mile times, and you should be at around 415whp.

bigdpro21

I saw the 4:10 gear vid on American muscle and it said it went from 0-60 @4.3 stock to 0-60 @3.9 with the 4:10's
I guess this isn't accurate?

Five Oh Brian

I believe you'll be around 405 rwhp and 375 rwtq with those mods. With proper traction (i.e. drag radials), I would expect a decent driver to see 0-60 mph in the high 3's and 1/4 miles in the high 11's.

We'll be curious to hear from you after you get it dyno'd and run it down the track to see how close our guesses are!

RCE EATR

You would need a lot of traction to hit 3.9... Most likely not going to do that on street tires on the street... Drag radials maybe. Or really wide really nice street tires.

5LHO

You know what? I'd ****-can that entire plan and hook up what you have. The issue with this car is it can't put down the power it has.

I'd go with an upper control arm of your choice, then lowers and/or relo brackets.

With a Roush upper alone, I punched out a hair over 4 seconds to 60, on the PZero summers, in winter. With the factory upper, the wheelhop and spin made it difficult to break 5 seconds, a couple times out of 10.

Once you get this thing stuck down, then tune it and you'll be laughing. I threw a Procal tune on there and some ancient drag radials that would barely hold a 1.9 60 foot and ran mid 12s at 112, 3.73 car. This thing, as is, has, I think, a fair shot at hitting 11s on a drag slick; we're gonna try next season.

That's my recommendation, FWIW.

Five Oh Brian

My '07 GT automatic coupe made 393 rwhp and ran 0-60 mph in 3.7 seconds. 60' times in the 1.65 to 1.70 range. 1/8 mile in 7.5 @ 92 and 1/4 mile in 11.8's @ 114. A 5.0L automatic with 20 more rwhp should be able to match (or better) that with proper traction.

GrabberBlue5.0

If you're looking for a good 60' time you need to address the suspension and tire before power and gears. The throttle body is not needed. The gears with the auto are a little much. I say get a converter with a good tune.

bigdpro21

What upper/lower control arms would you guys recommend?

GrabberBlue5.0

BMR makes good stuff.

5LHO

Depends what you can stand for noise, vibes and streetability. The upper is the biggest noise maker. Roush upper for quietest. Anything else will be noisier but, may be more effective.

Poly on the lower arms for a street vehicle, max. Going heim or delrin will beat you about the head and shoulders daily. Quietest arms are the GT500 ones found on, well, GT500s and Brembo pack Mustangs. They aren't actually too bad for a factory piece. They have pretty stiff, fairly small bushings in them and heavy duty sleeves. Downside is they are pretty heavy, comparatively more flexy than tube-or box style arms and don't locate as well as poly or other bushing styles.

If you want a straight-line shooter, relocation brackets for the lowers can really help, however, they will negatively affect handling and braking on a non-lowered application.

Whatever you get, make sure you can lubricate the bushings via a grease fitting, to keep them alive long-term and prevent squeaks.

Five Oh Brian

Automatics don't need aftermarket control arms nearly as bad as the manual trans cars as the torque converter effectively absorbs energy that would otherwise result in axlehop in a manual car. Get a good tune and drag radials. Then get steeper gears and/or a stall converter and you'll have an 11-second ride.

AMDanBailer

That's an awesome Christmas list! Your 12' GT will be an animal with those mods.

I agree with Five Oh, You should be right above the 400 RWHP horsepower mark with that set up and can definitely expect to break into the 11's with good driving and some traction! If you're looking to cut into the 3's with your 0-60 time, you're going to need some LCA's and a Radial would help, however it can be achieved without it.

I hope this helps. Let me know if I can be of any assistance or if you have any questions! Our Mustang Experts are here Monday-Friday from 9AM-9PM EST and Saturdays from 9AM-5:30PM EST. If you want to hit them up, their number is 866.727.1266.

Merry Christmas and Happy Holidays!

-Dan