DanC

I have an 07 cup with a rebuild in 09. Should I worry about this?

Glen

Should just be cars with the Twin Flap intake and it's the nut securing the resonance flap from what I understand. Another way to say it is the cars with the bigass pigeon swallowing sized throttle body...07 world challenge/ 08 cups on, it looks like. Not sure which street gt3's had it...

FFaust

What's the story about a kingdom that was doomed because of a missing horseshoe nail or something?

michaelmount123

Yes, the issue is with the twin flap engines. Each flap is secured with two hardened 3.5mm machine screws, and it's these screws that are coming out and causing all the carnage. They should be examined periodically. Tightening, then applying a drop of green wicking Loctite (specifically for use with an assembled fastener) is in order. Unfortunately, the intake has to be removed and disassembled to do this. To add insult to injury, as these screws loosen, the flaps won't open or close properly, so the torque curve suffers.

The letter from Porsche is interesting! What's the date on this letter? Does anyone know what Porsche's fix to the shaft/flap/fastener is?

Gofishracing

cstreit

"This can cause Loud Noises" ??? I BET it does.

Nizer

This sounds like the same issue behind the recall for '10-'11 RS's. Work Campaign 51.

"Porsche has determined that an intake air distributor may have been installed on your vehicle during production with a guiding shaft for the resonance flap that does not meet Porsche specifications. As a result the shaft may break and broken pieces may get into the intake duct or, ultimately, into the combustion chambers.

To prevent any damage from occurring, the intake air distributors on your vehicle need to be replaced."

Can anyone confirm?

Gofishracing

and I heard spark plugs are breaking but no warranty. Suggested replacement $150 ea.

ZSA Motorsport

yup. had to stuff $900 worth of RSR plugs in my rolex cup.
but i think we gained about 9hp or so. so it was worth it.


...not.

Nizer

Ditto. Heard they're made of unobtanium....

Nizer

Bump

mklaskin

I received my recall notice I'm the mail on Friday, campaign WC 51. I've scheduled my appointment for next week. I'll report back with as much info as I can.

michaelmount123

Soooo.... How do owners of dual flap Cup engines get a new intake air distributor at no cost? Seems as though there's a pretty good acknowledgement of the issue by Porsche with Campaign WC 51, and there's plenty of evidence of similar/same problem with Cup engines.

Does anyone have any experience with pursuing this sort of thing?

analogmike

good question!

I'm not going to ask for the tens of thousands of dollars damage the problem caused, but give me something to put in my new engine so it does not happen again. please.

ZSA Motorsport

NO SOUP FOR YOU!!! BACK OF THE LINE!