tiiger

Added a Pro-clip phone mount, and replaced the corner lights with clear ones. Normally I don't care about "clear corners" but with the Meteor Grey Metallic, I thought they'd look nice. I like 'em.

A432

Another data point for those watching this....I've been through 3 sets of HJS 200 cell cats on the 987.2 3.4L (the 3rd set are on now and fine but only street driven)
The issues I had on the track weren't CEL related but center core movement from heat during hard track sessions. I dynoed them and they made a whopping 4hp/5ft.lb.
Regarding maps and CELs, I ran them with 3 maps, stock, COBB 93 octane and COBB custom dyno tuned and all didn't CEL. (COBB is CARB EO'd) D-660-92
The reason I still run them on the street is I do like the slight sound improvement/light weight vs. going to a valved exhaust and they seem stable/reliable in the lower temp. street environment.
If you are in a state that now follows CARB visual rules, the other benefit is you can have them installed on stock headers by Cantrell or Carnewal and they pass the visual.

vrhooptie

Changed the AOS and large AOS hose on my 2009 Cayman. Been noticing some white smoke at startup randomly and idle would fluctuate a bit more than normal. Changed the hose because I suspected that I cracked it when I changed my shifter cables. Leaned on it briefly and heard a crack but couldn't see anything.

4 days in and no more smoke woohoo.

FlipE

You have two hoses running over the top of the engine and I only have one on my 2011 Cayman. Anybody know why?

Stash987

Those aren't hoses, they are the shifter cables. Going to assume you have a pdk, right?

A432

Oil and angle Last batch of M1 5w-50, will probably move to higher Moly/lower Calcium next time
(aggressive use in Southern warm weather)
9A1 Stock Drain Bolt 37 ft.lb / Filter Housing 19 ft.lb, use towels surrounding the area and some sort of glasses, it tends to come out fast and splash. (use funnel under both to minimize)

FlipE

Suggest you fab a steel piece to place between the upper cross-shaft and lower roller of each race jack. I'm not trusting any hydraulic jack to hold up a car on which i'm working. I took the top part of a cross-pin jackstand and cut arcs in the bottom end to fit over the lower roller. I'm 200 miles from my shop just now, so no photos...

FlipE

Bingo! PDK.

For decades I have been dealing with Lotus cars and am ignorant about many things Porsche.

Fortunately ignorance is curable. Thanks!

The Duke

Thanks for your insight on this topic. I was unaware of the "center core movement" phenomenon.

I'm contemplating moving to headers with HJS 200 cell cats for both street and HPDE use. I do not believe that NJ follows CARB visual rules, but one day I may move to a state that does, so this is just one thing that I will need to keep in mind.

Is your "4/5 hp" quote from HJS 200 cell cats within an OE exhaust? If not, this is a significantly lower number than the quotes I've heard from others.

Dave in Chicago

Spring is coming! Winter 18’s off, and summer 19’s back on. I missed them.

The 19’s with PS4S’s just feel a little more integrated on my ‘05 BS. 😊

A432

Thanks, I'm not under the car with the floor jacks, they're only to tilt the front up toward the drain plug afterwards which gets the last 1/2 quart oil/residue.

A432

YW. I watched multiple manifolds with HJS 200 cell cats get tested and the numbers were always very close.
My take on that is the catalytic brick effectively dampens any scavenging effect of the primary length/collector and becomes the limiting factor.
Look at Soul's numbers for theirs, very conservative and similar to what I got (I actually saw a little more)
It's very easy to inflate dyno numbers if someone wants to show impressive gains. Who is doing the test matters.

Regarding the failures of my HJS 200 cell cats, the car was being pushed very hard in competition (Auto Club Speedway/Willow Springs etc. 140+ speeds) and
it's possible for lighter DE work they would have lasted longer. (mine failed at ~20 track days)
Given that, I'd still run stock or catless for track work.

The CARB issues are sadly spreading and seeing how NY seems to follow CA craziness, not sure how long you have
edit: A quick search shows NJ is now a CARB state, maybe they simply haven't instituted the visual yet, not sure.
My current 200 cells are so I can keep legal/sound/light weight on the retired track R, now canyon cruiser. (titanium aft of the manifold)
The car is now fully CARB compliant for visual/DME with the 200 cells in the stock manifolds, catback, EVO intake and an EO'd COBB flash in the DME.

NAMR6MT

Jake Raby has always said that catted headers don't belong on the track because they aren't up to the task of extended continuous WOT.

Zach L

Fixed that... with the factory pan, the last 1/2 quart always remains in the pan.

Zach L

Most of the power figures you've heard are likely for aftermarket headers using 200-cell cats, not 200-cell cats in the factory headers. That was part of the reason I wanted to dyno them vs race headers with all other variables being the same, by a person/company not in the business...to clear up all this seller-provided data. Now that I think I've found a solution for running race headers, I may never get around to dyno'ing any 'sport' headers.