Which Gears Are Best For My Roush Mustang?

427RStangg wants to know: “In my s/c Roush, what gear ratio would you recommend? I have friends who say that 4.10 gears are way too steep for my car? It’s a manual.”

When choosing aftermarket Mustang gears (or any aftermarket mod), it’s important to consider what type of driving you do/want to do with the car, how much power you currently make, and how much power you intend to make.

Aftermarket rear-end gears are designed to get you off the line faster, so you’re going to burn through first gear (and second… and third…) much more quickly than with your stock gears. This isn’t as much of a hassle with an automatic transmission because you aren’t the one shifting, but if your Mustang is a stick and you do any kind of driving in a city or heavy traffic, you’d be wise to avoid the steeper ratios. Considering your pony is already super charged, I would have to side with your friends and recommend the 3.73 gears; they’ll give you the extra kick off the line that you want without making driving a chore.

When installing aftermarket gears, it’s always a good idea to get a bearing kit and replace the shims, bearings, and other items that wear out over time. This will complete your rear-end rebuild and make sure you keep that rubber burning for a long time.

3 Weeks Left: Hot Cars, Hot Girls, and Free Food!

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The 2010 AmericanMuscle car show is almost here! In just 3 weeks, you could be hanging out with hot girls, surrounded by awesome Mustangs. If that’s not enough to interest you, when you register you’ll get free food, a free swag bag, free raffle tickets for thousands of dollars of prizes, and an awesome car show t-shirt (also free!).

Our model shoot prank angers 10,000 Facebook fans!

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Earlier this week, we had the pleasure of hosting our smokin’ hot AmericanMuscle 2011 calendar shoot (featuring the AM girls) right outside my office door! The warehouse doors were plastered with warnings: “Photo Shoot In Progress – Do Not Disturb!” Yeah… right…! As many of our Facebook fans know, we’ve been giving a behind-the-scenes look at the daily happenings at our headquarters. However, when I put my job on the line and leaked THIS photo of one of the sizzling hot models, here is what our female Facebook friends had to say:

Why does my Mustang put down less HP than Ford advertises?

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From time to time, someone will ask us “Why does my car put out 290 horsepower on the dyno if it was rated at 300 horsepower stock?”  Dyno results can be confusing for anyone who hasn’t read up on the topic.  How can the same car put down different numbers just because the dyno manufacturer isn’t the same?  These answers are simple much easier to understand if you know how a dyno calculates or measures horsepower and torque.

August Ride of the Month Winners

Grand Prize Winner: Ron’s 2009 Bullitt!

Wheel style & size: 18 x 9  and 18 x 10

Tire brand & size: NT555   255/45 & 285/40

Ron’s Mustang Bullitt has an impressive list of modifications. An Edelbrock E-Force Street-Legal Supercharger has bumped his dyno numbers up to 427RWHP and 396 RWTQ. With a Dynotech 3.5″ aluminum driveshaft, a BMR driveshaft loop and 4.10 Ford Racing gears, Ron’s making the most of all that horsepower. In order to help him harness all that power, the Bullitt now features a Steeda adjustable panhard rod, a CHE K-frame brace with Q-Limiters, BMR billet lower control arms, and Koni Yellow shocks and struts.

Ron hasn’t neglected his Bullitt’s appearance for the sake of performance, though. He’s added sequential tail lights and satin tail light trim, plus a chrome surround for the rear panel and a blackout panel. DG window louvers, smoked front turn signals with stealth bulbs, and SHR lower grille inserts round out his exterior mods. In terms of the interior, the ’09 features Autometer wideband air/fuel and boost gauges on an SOS double gauge pillar mount.

Name That Part and Win Answers Revealed!

Congratulations go out to Rasiel Sabido, who won our Name That Part and Win contest! Rasiel’s name was drawn from a pool of everybody who guessed all six of the parts correctly, and he’ll get to choose one of the parts below as his prize. Not sure if your guesses were correct? Check our handy answer key below to find out! Click each picture to see what part it is.

The 5 Best Roads to Drive Your Mustang On

Here at AmericanMuscle, most a few of our employees have “less-than-perfect” driving records. This is probably because we’ve been on the lookout for the darkest, fastest, highest roads in the US; and sometimes this calls for a little bit of “spirited driving”! During our search, we stumbled upon these 5 roads that were just begging for us to lay down some fresh rubber:

Number 5. Florida’s State Road A1A Scenic and Historic Coastal Highway

Image Courtesy of byways.org
Image Courtesy of byways.org

There’s no questioning that the southern Florida coast is one of the finest spots in the country for beach bodies!  And by beach bodies we mean both classic/vintage and brand new Mustangs!  For years, it has been a landmark “cruising” spot for all automotive enthusiasts–every car imaginable can be seen on this stretch of road from Key West through Jacksonville.  Whether you’re cruising in 4th gear or burning the tires at every stop light, it’s hard to find a better road to drive on.

4.) Montana’s Beartooth Highway – The All American Road

11,000 feet above sea level and chiseled into mountain terrain, you’ll find a high performance enthusiast’s dream!  This two hour scenic drive has plenty of potential for Mustang drift footage for those brave enough to try.  Montana’s US Highway 212 has the most amazing twists and turns through what seems to be walls of snow and rock.  Make sure to check with the ranger’s station before taking on this voyage, as it has been known to snow even in the summer.

Name These Mustang Parts and One Could be Yours!

Everybody loves a challenge, and we have one for you guys! Below are cropped images taken directly from the main website picture of six different parts. If you guess all six of them correctly, you could win one. The rules are simple, all you have to do is find the pictures the images shown below were taken from and fill out the entry form before midnight on July 28th. Each entry with all six pictures listed correctly will be entered into a drawing. The winner of the drawing will get to pick one of the parts below as their prize, and will be announced on the blog on July 30th. Good luck!

Official Contest Rules

  • All entries must be made using the form below, and submitted before midnight on July 28th.
  • All correct entries will be put into a drawing to determine the winner. The winner will get to select one of the parts as their prize.
  • You can submit multiple entries, but please don’t send the same entry more than once.
  • Please submit a link to the page where you find the picture of the part on the website.
  • Parts are numbered 1-6, clockwise from top left.
  • This contest is open to US residents only.

Everything You Need To Know About Your 94-04 Mustang’s Exhaust

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Ok guys, heads up – I’ve broken this article down by exhaust component to cover as many of our common Mustang exhaust questions as possible. If there’s a question you have that isn’t answered here, then you know what to do! (If you’re scratching your head right now – the answer is call/email us!) You can also check out our tech article on Understanding Mustang Exhaust Systems if you need a refresher or some basic info.

How does an aftermarket exhaust improve my car’s performance?
I’m sure many of us are familiar with the “air pump” analogy – that is, an engine is essentially a big air pump, and the faster we move air into and out of the engine, the more power it will make. Therefore, replacing your factory exhaust with a larger, freer-flowing aftermarket exhaust can improve horsepower and torque.

What’s the difference between long-tube and shorty headers and how do they help my car?
Long-tube headers can also be called full-length headers, and require a shorty mid-pipe, oxygen sensor extensions, and a tune. Stock manifolds restrict airflow, especially on 2-valve engines. Tuning is required because long tube headers relocate the oxygen sensors further down-stream than factory, so a tune is necessary to compensate for the delay in response. For all you track-rats out there (or anybody who’s looking for a little extra kick from your pony) – long tubes are the way to go. Shorty headers are a direct replacement for your factory exhaust manifolds and do not require additional parts or tuning. Power gains differ between the two as well; long tubes will see the most gains in the mid-low to mid-high RPM range, while shorty headers will see their biggest gains in the mid-RPM range. Shorty headers are a great upgrade for your daily driver, but long tubes are best if you’re going for all-out performance, on the street or the strip. Another option for your Mustang headers is ceramic coating, which is more durable than chrome, and absorbs heat better.