Dyno'd my Cayman S before and after an IPD plenum install. - Page 2

Jim Michaels · #21 (**permalink**) 06-04-2008, 10:33 PM

From the hp scale on the left, the race plenum (green) seems to have provided an average of 7.8 hp gain from 5k rpm to 7k rpm, while the other plenum (red) provided an average of 5.5 hp gain over the same rpm span.

Method: I used my clear plastic scale to estimate hp differences at 5.0k, 5.5k, 6.0k, 6.5k, and 7.0k rpm. Admittedly a pretty rough estimate. The red plenum just doesn't add anything at the 5k and at 7k measuring points, while the green plenum does. I would have tried to do the torque gains the same way, but the vertical scale is just too small.

Thanks for posting the dyno results.

**CCC4321** · #22 (**permalink**) 06-05-2008, 12:13 AM

Quote:

Originally Posted by gmorat

I ran a 2:13.3 on config 13 at Buttonwillow, which is down from my best of 2:17.5 pre quaif dif(or P.Q.D as it will be known from now on

).

How much was the IPD plenum, how much was the lSD and how much was the Pagids(I only ran the fronts with poterfields on the rears)? Hard to say but the one thing I noticed more than anything is how much easier the car is to drive with the slippy diff. Kick *** stuff indeed. Thanks to everyone for all of this.

G.

GMorat
When are you going to come out with the rest of us at some POC events?
They are usually cheaper than the other track day groups, as it is a club.
Three days at California Speedway for $425, Speed Ventures shared the weekend and charged over $800. We have a group of 5 or 6 from the CC. that come out regularly.

gmorat · #23 (**permalink**) 06-05-2008, 12:19 AM

Quote:

Originally Posted by CCC4321

GMorat
When are you going to come out with the rest of us at some POC events?
They are usually cheaper than the other track day groups, as it is a club.
Three days at California Speedway for $425, Speed Ventures shared the weekend and charged over $800. We have a group of 5 or 6 from the CC. that come out regularly.

How do I sign up! I can always be swayed by discounts.

G

**CCC4321** · #24 (**permalink**) 06-05-2008, 09:41 PM

Quote:

Originally Posted by gmorat

How do I sign up! I can always be swayed by discounts.

G

::Porsche Owners Club::

They also have a link on the front page of the Cayman Club.

**lkl777** · #25 (**permalink**) 07-09-2008, 01:29 AM

I just posted on my install without the larger throttle body and very noticeable differance. And that is being mild Greg is a cool cat. Even though I did not buy from him he is working with me. I'd lay my 383 stroker on the table if it did not do what I said it did. Hope you have better gains than I with the larger system. I know I had to get a solid 5 hp at the wheels maybe a tad more check the thread out. And the next time you talk to Greg tell him Col Lambert said hey. Sent him some pic's of my old RUF and a few other beasts