Sneak Peek: Killer B Motorsport’s KILRB1
Those who race a Subaru know the name Killer B Motorsport. They likely have a number of Killer B parts on their car such as the engine saving Killer B oil pickup which replaces the failure prone OEM component. Aside from their oil related products, Killer B is well-known for their unique and highest performing Holy Header too. KILRB1 is the car all those parts were developed on and if you hurry, it can be yours.
The car is currently up on Ebay with the auction set to expire on July 22nd. There are so many go-fast, high-power, and reliability parts on this car- it’s ridiculous! As it was the development car for Killer B, it basically has every Killer B Motorsport part on it. We’re going to give you a little sneak peek of what some lucky buyer will get.
The Holy Header has a number of very important design features with material selection being the first using 321SS instead of 304SS. By using mandrel bent tubes, Killer B minimizes the number of weld joints which improves reliability. The merge collector is a cast piece, instead of fabricated, allowing for optimized design of the flow paths to maximize power. The wastegate placement is at a good angle to the flow to allow precise wastegate flow control. The Tial turbine housing is Swain Tech ceramic coated for thermal management and improved performance. Notice that with the low mounting location of the turbine, the downpipe coming off the turbine housing is nearly a straight horizontal pipe reducing back pressure. The downpipe transitions from round to oval to maintain flow area while maintaining ground clearance.
The turbo sits very low, and the exhaust dumps out behind the front tires resulting in very low back pressure. The header is also Swain Tech coated. Of course, KILRB1 has the high performance oil pan. A Mocal heavy duty scavenge pump is required for the oil drain due to the turbo being so low.