Picked up my 95 C2 yesterday from the dealer, new: clutch kit, 90k service, rs pulley update, kinematic lever update, sport oval tips, etc. and dreaded de carbonizing issue due to very closed ports. I had the mechanic remove the engine insulation sheet as it was drooping anyway. What a great difference! Much cleaner and clearer sounds now, but still conservative around town. But above 5k rpm really amazing, a highly reccomended modification the next time your engine gets removed.

 

ArticFox,

Season's Greeting.

Do you have the Motor Sound Package?

Thanks,
FastMaz

 

I have the motorsound air box cover, a k&n filter and the large oval tips...

Happy Holidays

 

I really don't see logic in removing the engine insulating blanket. More heat and noise into the cabin? If you want more of the mechanical noise, you can accomplish this by removing the engine tray. That removal actually has a positive benefit.

The "drooping" can be cured easily with a can of Pliobond, a couple of small battery brushes and some pieces of cardboard to wedge the insulation into place till the glue has cured.

 

Mike,

What is Pliobond and where do you buy it?

Rich

 

Rich,

Pliobond is an industrial adhesive. Used a lot in the aircraft industry. I like it better than the 3M products for these type of applications like installing weather strip, rubber edging, etc. Tough as nails.

You can buy a one pint can #09-28100 Pliobond Pint from Aircraft Spruce on line. They are at www.aircraftspruce.com. Also buy a few of the #09-21400 glue brushes (3/8" wide) and/or #09-21500 glue brushes (1/2" wide).

The glue brushes are small and easy to maneuver

 

It's 1000% better than before without this piece and perfectly logical IMHO

 

Rich,

Sorry, meant to hit spell check and hit send instead.

Anyway, use the glue brushes to maneuver the glue into place. Put it on thick, cause the insulation blanket will soak it up. Have some solvent handy in caase you drip or throw a couple of old towels over the engine. Wedge some pieces of cardboard in between the top of the engine and the bottom of the insulation. The cardboard will keep the insulation up against the sheet metal and in a few hours the glue will cure.

Nothing will cause the insulation to droop again. The factory must use an adhesive that is affected by the engine heat.

 

I agree with you. On my race car I have removed obviously all these things and while the noise I like as well for the use that I have it for, the heat in the summer months is noticably higher. I can't imagine in a stop and go traffic in the summer... Furthermore when I took out the rear seats there was no further insulant behind them either...so the results are self explanatory. YMMV

 

Arctic,

The folks here can decide for themselves about this, I'm sure. I always scratch my head and do a reality check about ripping someting out that Porsche, or any other manufacturer, engineered into a product and paid money to install. They HAD a reason (or reasons) for this insulation. Do you know what it was?

Certainly the engine under-tray qualifies as an item that had dubious value, but the removal has been well discussed here. Not sure about the insulation blanket between the engine bay and cabin.

But, since you are sure that the result is "1000% better than before without this piece and perfectly logical IMHO", perhaps you'd like to start a fund to indemnify those that follow your advice and suffer some unintended consequence?

 

I just based my call off of my research and the head porsche mechanic who said it was perfectly fine to remove. He said I would achieve my desire for more engine sound and the heat cabin/transfer issue was very minimal. I would also never rip out parts without considerable research and other expert opinions, did not realize I needed to indemnify this course of action.

Cheers to all for the holidays

 

Arcticfox003

Which dealer did you use for your service? Just curious!

 

Did he have to drop the engine to do this removal? Thanks.

Erick

 

Kim,
I'm going to start a support group for you. You've got it bad, man!!!!!!!

Oh wait, you've already got one..... :-)


Robert