Quote:
Jake,
All the 2.8l BMW's need to be seperated between '98 and '99. In the Z3 the chassis is the same but there's enough of a change that they should be considered different motors with different wire harnesses and different stock ECU's. In the sedan this is where the e-36 and e-46 part ways, again with different wire harnesses and ECU's. There's also the fact that the double VANOS has more potential as it's continuously variable verses the off/on nature of the single VANOS and has a larger range of adjustment. Should be worth at least 10hp from talking to someone who built one up for USTCC, and that's before really optimizing it.
James
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James,