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pokeybritches · 12-13-2010, 11:20 PM

It's a Vortech supercharger kit. I'm glad someone is finally making some FI options for the N52, but there are a lot of drawbacks. First, the N52's crank is cast and not forged, so to run higher boost levels you will need to tear into the engine internals (beyond the abilities of the average weekend mechanic, so add in professional install and the cost of the new crankshaft). The block is a concern because it's magnesium/aluminum, and the kit will require water/meth injection. The tank will take up trunk space, and it's yet another fluid level to worry about and refill. I don't remember what the ZF and GM transmission specs are, but I do know one is limited to 290 lb-ft of torque and the other is ~320 lb-ft according to the thread. They cited these links:

http://en.wikipedia.org/wiki/GM_6L50_transmission

http://www.motor-talk.de/forum/aktio...hmentId=681806

Stage 1 will run about 3 psi, which is not enough boost to run with a Z4M. Stage 2 is going to be greater (they say ~6 psi).

Would I buy this kit if I had an N52 Z4? Probably. But it's not a kit for everyone, and it won't "murder" any M car. Props to the developer for taking the time to R&D it, and I hope he gets a good return on the investment.

12-13-2010, 11:20 PM	#3
pokeybritches Colonel 479 Rep 2,782 Posts Drives: ESS/G-Power Z4M, VF Z4, 996tt Join Date: Sep 2009 Location: Los Angeles iTrader: (12) Garage List 2006 BMW Z4M [10.00] 2006 BMW Z4M [8.50] 2003 BMW Z4 3.0i [9.00]	It's a Vortech supercharger kit. I'm glad someone is finally making some FI options for the N52, but there are a lot of drawbacks. First, the N52's crank is cast and not forged, so to run higher boost levels you will need to tear into the engine internals (beyond the abilities of the average weekend mechanic, so add in professional install and the cost of the new crankshaft). The block is a concern because it's magnesium/aluminum, and the kit will require water/meth injection. The tank will take up trunk space, and it's yet another fluid level to worry about and refill. I don't remember what the ZF and GM transmission specs are, but I do know one is limited to 290 lb-ft of torque and the other is ~320 lb-ft according to the thread. They cited these links: http://en.wikipedia.org/wiki/GM_6L50_transmission http://www.motor-talk.de/forum/aktio...hmentId=681806 Stage 1 will run about 3 psi, which is not enough boost to run with a Z4M. Stage 2 is going to be greater (they say ~6 psi). Would I buy this kit if I had an N52 Z4? Probably. But it's not a kit for everyone, and it won't "murder" any M car. Props to the developer for taking the time to R&D it, and I hope he gets a good return on the investment.
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