Boost Controller: GReddy PRofec-B

We hit the dyno with 6 boost controllers and a ball valve.

http://images.sportcompactcarweb.com/tech/0207scc_boostcontrol04_s.jpg

PRofec stands for Pressure Offensive Controller. What that means we're not really sure, and we don't care. The PRofec-B is really good. GReddy's "basic" model features a dual solenoid design similar to the Blitz SBC i-D. The solenoid assembly is somewhat bulky, but mounts easily enough in the engine compartment. An additional pressure signal must be brought to the back of the control unit in the cabin. Our tester came housed in a translucent blue case, which lets you see all the electronic bits inside. When lit up at night, it looks like a cross between a UFO and a holiday ornament. Basic black is available for a few bucks more.

Where the PRofec-A must be trained in the ways of your turbo, the B model comes out of the box smart. GReddy specifically recommends this unit for sequential cars and problem cases. Straight-away boost is responsive, though further tuning can be made with the balance dial. High and low boost each get their own dial, all of which normally sit flush, and pop out for adjustment. Toggling between high and low boost is accomplished either by the mode button on the control unit, or through the use of GReddy's optional wireless remote switching system. Mount it on your steering wheel, shifter, key chain or girlfriend.

Controller: GReddy PRofec-B
Pro: Super simple, works great.
Con: Sensitive knobs.
Cost: $420 in black, $399 in blue, remote switch: $128.
Source:
GReddy Performance Products Inc.
(949) 588-8300
www.greddy.com
Aesthetics: Looks like a Xmas tree ornament.
Ease of installation: Yes.
Clarity of instructions: Fine. Available on Web site.
Features: High, low boost, adjustable response.
Performance: Grrrreat!