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et's face it, there 's something magical about the sound a Hemi makes as all eight barrels on a brace
of AFBs begin moving air. The image that comes to mind is that crazy '70 'Cuda advertisement showing
the new Shaker in action; nothing is safe at full throttle. So, when Mike and Ray Staveski at Time
Machines Auto Restoration in Hudson, Florida, gave us a chance to experience Hemi power through fuel
injection, we jumped at the chance to go play for a morning. Of course, this was purely for objective
scientific reasons, not because we just wanted to drive a '70 Hemi Challenger convertible or anything
like that; just science.
Several years ago, Mike and Ray built this E-Body drop-top as a show car, complete
with a Chrysler V10 engine and AOD four-speed transmission. After all the accolades and awards, the
Staveskis decided to remake the Challenger again, going back to an old-school powerplant…in a new
way. The originally 318-motivated machine would get an infusion of elephant power, which would not
be too difficult since the V10 necessitated a Hemi K-frame anyhow.
The Hemi that ended up between the fenders is a stock '70 version
with the exception of a Lunati custom-ground camshaft and twin Holley throttle bodies. We covered
the basic injection outfit that Time Machines developed in conjunction with Holley in the March
issue ("Computer Controlled Hemi," p.60). The rest of the drive line consists of a
TCI-converter-equipped 727 Torqueflite coupled to a Gear Vendors overdrive unit, which in turn is
backed up by a Dana 60 with 4.10 gearing. The car rolls on Billet Specialties Vintec wheels
measuring 17x8 up front and 17x9 ˝ in the rear and wrapped in big BFG meats.
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The interior was also restored by Time Machines with parts from Year One and Auto
Custom Carpets. Like the horn button? That little touch is the hubcap center from a K-car (at least
somebody found a use for it). All told, Mike and the crew created a reliable Hemi driver that can
handle anything. We shot some photos, then Mike handed me the keys. I love it when a plan comes
together….
The Hemi uses a late-model starter, and a twist of the key hand the
engine up and rumbling with a mere three revolutions of the crank. Any Hemi, by its very nature, is
known for its throaty horsepower idle, but that custom Lunati Cam gave it an even more radical sound.
The converter is somewhat loose; putting the car into gear, it's easy to feel the rpm level climbing
before the car begins to really transfer torque and start moving. Soon, we were out cruising the back
roads of Florida's Gulf Coast. This included moving a large turtle out of the road early in the
journey (just so people know we aren't heartless media goons).
The engine tones were muffled by the pair of Flowmaster mufflers and, with the help of
the rebuilt suspension, the road felt smooth as silk. Of course, nobody owns or builds a Hemi car
just for comfort; we were aching to find out how the EFI unit compares to the standard carbs. From
a dead stop or low rpm range, the AFB-equipped originals tend to get a little flat while the fuel
starts moving through the engine (unless you're pretending to e Ronie Sox and sidestepping the
clutch at 4,000-plus). The benefits of fuel injection over a standard layout are smooth transitions
from idle to full horsepower, and adjustability for different driving styles by using the computer.
That said, and the car set for drivers like us, we put it to the big-
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toe test. Off the line,
application of the big toe to the accelerator pedal broke the tires loose without effort, and
the engine (being a Hemi and all that) hardly sounded like it was laboring.
The slow steady application of the pedal quickly and easily sent the car toward triple
digits. This level of speed was quickly multiplied by the Gear Vendors unit, which essentially turns
the three-speed 'Flite into a six-speed, if needed. Even with the 4.10 gears, the car was reasonably
tame. Trust me, with enough open highway, I would hate to guess the top speed in this thing. Let's
just say we ran out of road before we ran out of car.
Off the highway and back in traffic didn't present any problems. The updated cooling
system in the convertible kept temperatures comfortable. The Challenger is ahead-turner, no doubt
about it, but the engine was quietly loping away under the bonnet at 800 rpm, and there was no
hint of a rich condition. Driving back to the shop, I had to give this one a thumbs-up.
The truth is most of us, myself included, are "old school" guys. The fuel injection
technology can be a little overwhelming, and it does require a willingness to think outside of the
jetting box. However, this morning I became a believer in its benefits. Smooth idle, an excellent
acceleration curve, and good mileage based on the Gear Vendors box and responsible driving habits
make this a "have your cake and eat it, too" situation. Besides, I've spent enough time dealing in
carburetors over the years to know that once the word gets out on how well this hardware works,
we're all going to be tuning with laptops. Too bad this stuff isn't legal on Pro Stock engines.

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