The power unit of the system...
The power unit of the system tucks under the dash to limit the space it takes up in the passenger footwell. This requires a reduction in glove box space but is conveniently accounted for with a new glove box liner unit, which easily slips into place and attaches like the factory unit.
Next, we wanted to keep the firewall as clean as possible. We lengthened the supplied high- and low-pressure lines before crimping them. This was done to allow routing of the lines behind the fender and to keep it hidden before reaching the engine. The same was done with new (suggested) heater hoses. We also picked up a $6.99 water pump bypass hose, which featured two 90-degree bends, and two heater hose splice connectors for $3.99 each. These 90s were mounted to the power unit and then to the heater hoses, and we gave the hose a tight turn that would not restrict water flow. Better yet, this keeps everything against the firewall and out of the way.
Hands-On Evaluation
Following the process and steps outlined in the instruction sheet, this installation isn't difficult. Every component fit where it was supposed to, such as the provided drier hard lines, which line up perfectly. The power unit snuggles up nicely under the dash, limiting its invasion of passenger footwell space. The supplied wiring is generous enough so that you can easily extend them to make connections onto the factory harness. Even the adjustments to the factory controls to connect the multispeed fan switch are simplified with a provided template.
The only outside tool you'll need is an A/C hose crimping tool. Also, we strongly urge everyone to go ahead and purchase a new heater hose. While you're at it, it's also a great time to drain and refill the cooling system. Finally, be sure to give yourself ample time for the installation. This isn't an afternoon project, and a modest level of wrenching expertise is required. Nevertheless, we have no doubt that this is an installation anyone can handle.
Last Word
Do it! There is no need to swelter in summer's worst any longer as you cruise in your street machine. While we didn't strap our 'Velle onto a chassis dyno to check for any power loss, we're proud to say that any loss would be minimal. With our unit on full-tilt skin-numbing mode, our 383 small-block will easily break the tire loose on command and get sideways in a hurry. Now that is undoubtedly cool!
 The driver-side dash air outlet...  The driver-side dash air outlet was shot with a coat of semigloss to provide a close match to our dash's level of shine. Because of the added controls, such as the convertible top switch, the outlet was then installed onto the steering column cover with two sheetmetal screws. |  The clean, simple attachment...  The clean, simple attachment of the air outlet is strong and secure. The direction louvers snap into place, and the provided flex-hose slides on and locks in place through a serrated edge on it. |  The underdash unit we selected...  The underdash unit we selected comes with three additional air outlets and was installed in a similar fashion. This setup provided a clean look with added continuity to the entire interior. |
 From the firewall side, the...  From the firewall side, the power unit pulls tightly against the inside edge and provides ample length for upcoming connections. The provided cover plate aligns easily. |  The supplied temperature-control...  The supplied temperature-control water valve must be installed in the return line from the heater to the engine for best results. We added one of our 90-degree hose ends to keep the unit tucked tightly against the firewall. |  This close-up reveals how...  This close-up reveals how the 90-degree-bent heater hose and splice connector keep hoses out of the way. |
 Once the lengths of the high-...  Once the lengths of the high- and low-pressure A/C lines were determined, we crimped them (thanks to Jason Scudellari at the SIM Tech Center). Make sure to lubricate and use the right size O-rings for each connection. |  The result of all the line...  The result of all the line and cable attachments is a clean, uncluttered look. All connections and lines are well away from any heat source as well. |  With only two electrical connections...  With only two electrical connections under the hood and an additional two in the interior, the job is pretty much completed. Add water, run the car, and check for any cooling system leaks. From there, add your favorite antifreeze and head over to your local shop for a complete evacuation and A/C recharge service. We are pleased with the system, and we're sure you will be too. |