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      07-17-2011, 11:12 PM   #89
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Drives: 2008 E90M3
Join Date: Jan 2009
Location: Daly City -4- Work///Camarillo is Home

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2008 BMW E90 M3  [3.80]
Originally Posted by Roman@ESS View Post
Drew’s VT3 project build is the end result of our work over the past 2 years to design a low compression option for the S65 motor. This design will allow the S65 to run 10:1 CR which will allow the use of higher boost safely on pump fuel. A requirement in our design process was the ability to use the OEM Alusil cylinders in order to achieve OEM oil consumption levels, cylinder noise and engine longevity. The only way we feel to do this is to keep the stock displacement and use a custom made Mahle Alusil spec piston that will allow a factory seal by using the OEM BMW piston rings. This requires a motor that is in perfect working condition as we use the original block and cylinder machining. We do not sleeve or bore out the motor for this upgrade as this will compromise the Alusil cylinder seal quality. As an added precaution we also upgrade the rod and main bearings to add another level of safety to the design.

Outside of the motor we have designed a custom fuel delivery system that will allow proper fueling for the elevated levels of boost we will run and a custom belt drive system that retains the factory tensioner. The combination of these upgrades will allow the Vortech V3 supercharger to make 700+ HP on our existing VT2 hardware while retaining OEM quality drivability to the vehicle.

Originally Posted by DLSJ5 View Post

That is about as perfect as it gets in describing the VT3 build process and your approach. This is going to be A LOT of fun, looking forward to seeing you at Targa Trophy next weekend.
so that's when the debut will be

so anxiously awaiting the numbers and everything
- Jason P
:Have: 08 E90M3, Varis VRS Front Lip, LS3, ESS Supercharger, Arqray Exhaust, Neez Wheels
:Want: VRS Carbon GT Wing & Cooling Bonnet, LCI Taillights
:Videos: EnvyRidesTV, GPR 1, GPR 2, GPR 3, ///MFEST