Transmission tuning with HP tuners and LS engine swaps.

Really nicely built/restored willies with a late model 5.3 swap showed up for some trans tuning. The factory calibrations for these transmissions like to hold off on a downshift alot longer then you really want sometimes, also the shift firmness properties and upshift at wot scheduals really need a little work to make feel right. A little time with HP tuners and we are much happier with how the trans operates. Also this swap used an on off electric fan arangement where the factory fan was a pulse width modulated assembly. So anytime the fan was commended the poor 30 amp relay got a seriouse HZ workout. By modifying the PWM tables to command 100%duty cycle when we wanted the fan on got that problem taken care of and allowed the realy to operate properly.
Super nice truck

331 stroker motor tuning

Here we have a 331 stroker motor nestled in the engine bay of a ’65 Mustang that was brought here for some tuning and sorting out. Setting up the carb, dialing in the timing, and adjusting air and fuel mixtures make it a much better runner now.
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Mustang GT tuning

A freshly rebuilt engine in this Mustang was needing some tuning to compensate for the better flowing heads and intake that the factory ECU just can’t compensate for. We ordered and installed a Megasquirt Plug n Play kit and performed the tuning all in house; making this Mustang ready to ride.
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1968 Dodge Dart GTS

In for some timing and carb adjustments is a super cool and clean ’68 Dart; 340 4 speed car. A properly spec’d carb, jetted and calibrated for the engine, and some distributor work made a nice, easy to drive car that now runs as good as it looks.

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Roush Stage 2 tuning

We had a car dealership up near Seattle contact us regarding our tuning services for a Roush Mustang they had traded in. Someone had installed an Edelbrock E-Force supercharger; but never had it tuned and never included a tuner. Immensely underpowered and running poorly; we retuned the vehicle with an SCT tuner and made it into a reliable, power making machine.

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2009 Dodge Challenger R/T


This awesome Hemi Orange Challenger came down to us all the way from Spokane, WA to have some issues worked out. IMG_0123

After having a Stage 3 cam from Comp Cams installed; the factory MDS was causing loss of power and performance. We created a tune file for the vehicle disabling the MDS and were able to tune the Hemi to make power to an impressive 6390 rpm as opposed to the 5200 rpm limit when we first got it.


After making a strong 403 horsepower run on the dyno; the customer was happy with the results and the car is going to be turning heads with its new lumpy idle and howl from the Corsa exhaust out the back. Under the hood shows the custom painted engine cover in classic Hemi orange.



Mustang Mach 1 tuning

This Mach 1 Mustang is equipped with a Procharger and was tuned via a “canned” tune. Although that would’ve been good enough for some; this customer has his sights set on crushing the 1,320; so long tube headers and a custom dyno tune were on the work order.

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Custom tuning

Here at Fast Specialties the 1750SE Mustang Dyno is the heart of our tuning capability. When it comes to performance evaluation we believe this machine to be head and shoulders above other machines on the market. Our modified 4 post lift allows the dyno to accept long bed and dually trucks without pulling the rear wheels. It will handle and record over 2000whp and statically absorb 500HP, basically whatever you can throw at it, and while running a car for a HP number is fun, its the machines ability to simulate load, maintain steady speeds, and readout torque in real time that makes it such a powerful tuning tool.

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The dyno gives us the ability to control the testing environment, but you have to be able to manipulate the car to realize any true performance improvements. Here at Fast Specialties we utilze a wide range of tuning systems. SCT, Diablosport, Megasquirt, Holley, Fast, Accell, and a slew of others. Is your car carbureted? If so we have you covered there as well. Holley modular carbs, Edelbrock/AFB, Weber, Solex, Mikuni, 1 carb, or multi carb, turbo charged/supercharged blow-through or draw-through, e-85, propane, or pump gas, again, you name it and we have probably tuned it.


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2007 Ford Mustang GT500 Super Snake Check Engine Light

This gorgeous 2007 GT500 Super Snake arrived last week with the check engine light on and multiple codes stored in the system.  Upon inspection found the electronics on the throttle body causing multiple codes.  This car has a Kenne Belle Supercharger fitted by Shelby.

After extensive research we have discovered the Kenne Bell throttle body does not come with any of the electronics, just the throttle body.  After receiving a new factory throttle body from Ford and removing the sensors and installing on the Kenne Bell throttle body this beauty is roaring again.  Customer had lost their initial SCT X4 tuner, so we installed a new one and we still had the original tune from their prior visit a couple years back.  Programmed the new tuner with the previous tune and this amazing car now puts down  690HP to the wheels.