Sleeps 4 at 120

...and a Bosch BPV too.

BPV definitely helps spool between shifts, and I swear there is a performance increase with the single pass IC. I get some surging now though, which never happened before. Seems to happen when coming off WOT.

I'll post some pics later. Now to get the front bumper back on...

Will Ng

I seem to get some surging coming off WOT...perhaps it's not qualified as surging, but releasing WOT and dropping 1.4 bar down to 1.2 bar, the car seems to accelerate a bit. I've only noticed this after removing the crankcase vent from the airbox. Perhaps the mixture needs adjusting.

Check your CIS decceleration valve is operating properly. Also check that the BPV is holding vacuum.

Sleeps 4 at 120

My BPV is plumbed to where the decel valve used to be. Which hose is the crank case breather?

Will Ng

The crankcase vent hose is in reference to the MC engine. It's the hose from the valve cover hose Tee, to the hose barb at the back of the CIS air horn.
If you were standing in front of your car, this hose is to the right of the decel valve hose connection on the air horn.
Mine is plugged off, and I vent to atmosphere.
My car is otherwise stock. With no blow by, I'm getting a bit more air into the engine. I assumed the closed loop setup can compensate. I may be running a bit lean in open loop WOT, and perhaps that may be the cause of my slight surging.