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Micah@OST

Ost Dyno Builds An N/a Forged '16 Scat Pack

Every now and again we build a car that deserves a complete thread dedicated to it. That's the case with this 2016 Scat Pack Shaker. The car arrived to us from New York with just 1,200 miles on the clock and the owner requesting a forged motor and many other performance parts.

 

For this car we decided on an OST forged 426 with custom rods and pistons. We bumped compression up to 11.1 and installed one of our custom ground "Rumbler" camshafts. We also installed a set of OST ported Apache cylinder heads with our custom spec'd valvetrain. This car will truly be another OST Dyno flagship build!

 

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We began by wrapping the car as we do every car. A quality job is of the utmost importance!

 

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A few hours later the motor and trans were on the ground.

 

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A couple hours after that and the entire motor was torn down to make ready for the OST 426 shortblock.

 

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More to come!

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Wow.... 1200 miles. Did you dyno it and get a base line number? Looking forward to seeing this one finished.

Finished by Sunday? lol

 

Just kidding.... :)

 

Stevo

 

Thanks, Stevo!

 

The car baselined at 419whp.

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Wow.... 1200 miles. Did you dyno it and get a base line number? Looking forward to seeing this one finished.

Finished by Sunday? lol

 

Just kidding.... :)

 

Stevo

Shipping on friday. :o

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With the motor all torn down we opened a pretty cool looking box that had been sitting in our shop.

 

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This box contained the OST 426 shortblock built from a brand new 6.4 block ordered from Chrysler. 

 

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On the engine stand ready for assembly.

 

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We then inspected the OST ported Apache heads and installed them onto the shortblock. You can see from the pictures below, not only do we port the intake and exhaust runners, but we also clean up the combustion chamber and remove the valve shrouding; essential on a high horsepower N/A build.

 

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Installed and ready to go! When going into a '15+ car, the '11-'14 passenger head requires two holes to be drilled and tapped in the rear to bolt on the EVAP solenoid bracket.

 

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As you can see, we've also installed the cam at this point. The specs of our "Rumbler" cam can be found on our website.

 

http://www.ostdyno.com/products/engine-components/camshafts/

 

With the camshaft and cylinder heads installed, everything was reassembled. The observant will pick out the 88mm TB and ATI underdrive damper. We also installed a ported 6.4 intake. More on this intake later.

 

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Now the motor is ready to be installed on the subframe and offered up to the car. Stay tuned!

 

 

 

 

 

 

 

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Now that the engine is completed we move onto the transmission. 

 

Our "Rumbler" cam is pretty potent and moves the powerband much higher in the rev range than factory. An aftermarket converter with a higher stall is a must. We turned to the only people we ever turn to for converters: SHR.

 

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The '15-'16 converters (and transmissions) are much different than the NAG1. Be careful not to spill any transmission fluid as it's around $45 a quart!

 

Wither everything back together on the ground the assembly was bolted back into the car.

 

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While the exhaust was off we gutted the cats and installed a wideband O2 bung and controller. We use the Innovate LC-2 for all our cars.

 

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Then we moved onto the rear of the car to install a set of solid subframe bushings. A pretty simple job and well worth it!

 

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And the finished product! Not bad for a couple hours of work.

 

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During the process, we learned that the '15-'16 cars need this upper ring removed from the bushing before the tool will fit properly.

 

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With everything back together we could now begin the tuning phase of this build. Be sure to check back for more updates!

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