Thx Tom/Mike. I HAVE just purchased a new X-flow. However, it's the same spec as the existing (advertised 135 hp, real world, subtract 40 hp). Mine was smoking a bit, leaking a bit, etc., so I purchased a refurbished X-Flow from Craig Chima. It MITE have a few extra ponies over the existing engine as it was blueprinted, ported/polished by a Crossflow specialist who does racing engines. We'll see.
IF I was going to upgrade, I'd have bought the 185 hp BDR engineCraig's putting in his Caterham rebuild (See for-sale section). I talked to him abt it ($10K vs $3K for what I bought). It was tempting (the ultimate sleeper se7en). But I don't have $10K and I love my little underpowered car. Can you drive flat out everywhere:)?
Hopefully all the current ice/snow will be gone by April, when it's set to be installed. His shop is abt 4 hours from Cincy.
As to competing w/your uber se7ens at the track, I am thinking abt zip tying my se7en grill onto my 414 hp M3 and passing it off as a se7en.
Mike M.