G/B for Underdrive pulley on CaymanClub

[jderiansf]

Originally Posted by Gary in BR

Do they make a underdrive pulley for the 2.5?

I have never seen one for sale or tested on this engine?
Does anyone know??

If there is one made have you seen a dyno?

Afaik, it will work.

Before the site went down, there was a post about it being available (or compatible) with a 986.

Most h.p. figures were in the 12 to 15 at the wheels. Its underdriven by 16%

The main reason for 987's to change it is to slow down the power steering pump, to avoid overheating the p.s. fluid during extensive track time.

Jason

[Gary in BR]

I tried an internet search to find the underdrive pulleys manufactures website but i could not find anything.

Does anyone have a link?

[idheaton]

here you go....


http://www.bbiautosport.com/

[Gary in BR]

BBI has a nice looking site but I did not see anything about the underdrive pulleys.

I must have in my back up brain.

[jderiansf]

Its a new product, and I don't think the site has been updated yet.

Jason

[JP-s-in st. louis]

Originally Posted by Gary in BR

BBI has a nice looking site but I did not see anything about the underdrive pulleys.

I must have in my back up brain.

Gary....Be Careful! The underdrive pully IIRC will give you more boost and if you are already at 6SI that may put you over the top. I will check with IA on my kit tomorrow

[Gary in BR]

The pulley will effect the boost on the turbos??

[JP-s-in st. louis]

No never mind just theSC unless the turbos are running on a belt system..... I honestly do not know much about the systm you are running. i would check with your guy first though on that.

Also have you done the plenum yet?