Mike Kopstain
New Member
This car is going to have torque... This car is going to launch hard... This car is just amazing. It's nice to see someone actually come through and get a project done.
What snout are you running? It looks like the shorter M62 snout and the keyed pulley was only used on that snout, but your pulley looks to large.
Boost bypass valve - I don't see one and listening to the motor when reving it I would assume it was omitted from the installation. From the aspect of fuel mileage and rod bearing wear, you're going to be in a lot better shape if you install some form of a vacuum bypass valve. For what it's worth, the M90 (Gen III) has a built in electronic/ vacuum bypass valve that you might be able to rig up. The electronic portion is only so the PCM can shutoff boost if needed; the valve is fully functional on vacuum only.
I will try to snap some pictures of my car later to give you an idea. In respect to rod bearings, there is a lot more strain on them at idle and low speeds when the blower isn't allowed to recycle air.
What snout are you running? It looks like the shorter M62 snout and the keyed pulley was only used on that snout, but your pulley looks to large.
Boost bypass valve - I don't see one and listening to the motor when reving it I would assume it was omitted from the installation. From the aspect of fuel mileage and rod bearing wear, you're going to be in a lot better shape if you install some form of a vacuum bypass valve. For what it's worth, the M90 (Gen III) has a built in electronic/ vacuum bypass valve that you might be able to rig up. The electronic portion is only so the PCM can shutoff boost if needed; the valve is fully functional on vacuum only.
I will try to snap some pictures of my car later to give you an idea. In respect to rod bearings, there is a lot more strain on them at idle and low speeds when the blower isn't allowed to recycle air.
What kind of exhaust are you running?
The exhaust sounds amazing and then you got that nice ZZZZZZZIIIIIIIIINNNNNNNNNNGGGGGGGGGGG to add to it, just amazing!