LWFW to avoid RMS damage - 986 Forum - The Community for Porsche Boxster & Cayman Owners

violametallic-S- · 09-20-2009, 09:19 PM

If you have a sprung clutch with a LWFL combo, then the sprung clutch takes in all the vibrations. Thats what ive been reading lately.

Side note, where would one get a underpully you speak of? 10hp gain?

jaykay · 09-20-2009, 09:29 PM

I am running an underdrive pulley now......the one I have is from Mantis racing in Canada. I am sure there are others. I am told it gives +7hp.

violametallic-S- · 09-20-2009, 10:06 PM

Quote:

Originally Posted by jaykay

I am running an underdrive pulley now......the one I have is from Mantis racing in Canada. I am sure there are others. I am told it gives +7hp.

Did you notice a difference?

jaykay · 09-21-2009, 05:59 PM

I desnorkled and put the pulley in at the same time.....so I did feel like the engine had been opened up a bit and was more responsive. The awesome sound from the intake while on the throttle helped psychologically aswell. I am going to look to coming up with an intake tract with no resonance chambers in the search for more sound..

I have seen a dyno showing +5 for the snorkle so that + 7 from the pulley theoretically gives +12!

Your accessories turn slower of course (If I recall correctly...20%). Parking and at full lock my power steering pump will wine. Buzzing around in the power band of the engine at the track all day can damage the power steering pump so slowing it down is a benefit.