For sale, used VAC Motorsports vanos hub upgrade. No known issues, came out of an S54 that dropped a valve or broke a piston which destroyed the block, head and bottom end. We sourced another engine and are parting this one out now. The engine was in a racecar and had less than 2 weekends on it (100 miles or less maybe?).
From VAC's website:
"Our VAC S54 Vanos Hub is designed as a direct replacement for the fragile BMW OE Vanos Hub which typically fails due to a broken drive pin. The VAC Hub has an Upgraded Drive Pin design, which is larger in diameter, as well as more material on the outside wall of the pin. In addition, the hub is made from 4340HT Billet Bar and heat treated to the same BMW OE Rockwell Hardness spec. The upgraded design is not only significantly stronger, but the larger diameter Drive Pins also minimize the huge clearance (approximately 1mm) that was in the original design by BMW, and reduces the clearance to 0.2mm. This is critical in helping greatly reduced or eliminate the VANOS noise.
Also, this upgraded design eliminates the need for modifying the Pump Ring or having to buy a replacement, which further saves you money!!!"
$550 +pp fees shipped in the US
From VAC's website:
"Our VAC S54 Vanos Hub is designed as a direct replacement for the fragile BMW OE Vanos Hub which typically fails due to a broken drive pin. The VAC Hub has an Upgraded Drive Pin design, which is larger in diameter, as well as more material on the outside wall of the pin. In addition, the hub is made from 4340HT Billet Bar and heat treated to the same BMW OE Rockwell Hardness spec. The upgraded design is not only significantly stronger, but the larger diameter Drive Pins also minimize the huge clearance (approximately 1mm) that was in the original design by BMW, and reduces the clearance to 0.2mm. This is critical in helping greatly reduced or eliminate the VANOS noise.
Also, this upgraded design eliminates the need for modifying the Pump Ring or having to buy a replacement, which further saves you money!!!"
$550 +pp fees shipped in the US
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