HP2 Sport Dyno runs

[Deans BMW]

Thought you all might enjoy this. Chris's Dyno typically reads conservative.



Mobil 15/50 Synthetic oil from the first start, engine seems bullet proof, full throttle break in.

[SergioK]

140hp? Umm... is this a stock HP2S or one he fiddled with?

And why is he doing this with triple digit temps outside?

[Steve Carlton]

Wow! What is that, 20-25 hp over stock? That thing has to be a rocket.

[IvanTT]

Originally Posted by SergioK

140hp? Umm... is this a stock HP2S or one he fiddled with?

And why is he doing this with triple digit temps outside?

To make it realistic /seem as if it is at the track senario.
High temp and high humidity = least amount of o2 in a given volume of air. This is what it is like in say....Daytona typically.

Train like you fight. Fight like you train.

[shreddr]

throw that tricked out R12 on the dyno and see what it reads

[Deans BMW]

SergioK, that is the HP2 Sport that San Jose races, very tricked out.

There is a big difference between a motor that you just build for peak HP as in a drag racer and one that has to race lap after lap on a very hot track like when they raced at Infineon with an air temp of over 100F. Heat management becomes a real limiting issue with an Air Cooled engine.

The San Jose Bike is lighter than stock as well.

[YellowRacer]

I wonder what the true HP is...

[Dr. Curve]

154 HP at the Crank. Bravo for this stellar effort from the Premier American San Jose BMW Racing Team. Still more can be done however and I bet Chris is already making plans. Lighter valve train, ceramic coating where needed, hyper mist injectors, variable length intake track, ect.