MikeN

Looks like this may be the hot ticket for when mine will need replacement.

From what I can seen each version from the Big 3 does not come with the upper metal ducts.......just the holes for them. I gather you can just drill out the rivets that hold the ducts in place on the old pan and retro them on to the new one? Don't want to leave them off.

Brent 89-GT

I have one of the first one 928 intl made. It is a nice piece, fit perfectly, no problems. My car did not have a belly pan at all so I did not add the upper ducts to my new pan. Like you mention the NACA style openings are there and I haven't had any problems not using the rest of the ductwork.

Robert_H

MikeN,

When I purchased my belly pan from 928 International, I asked if the other ducts were needed and if they were available. I was told that they weren't really necessary.

Rob

heinrich

I have 2 sets of ducts I'd sell.

Robert_H

heinrich,

I would be interested in one of the sets. How much would you like for them ?

Rob

Ed Scherer

Mike, that's exactly what I did. Drilled out the rivets on the old one and fit them onto the new one (from 928 Int'l). As I recall, I had to hacksaw just one tiny piece of the new pan off to get the old ducts to fit. IIRC, the holes were all predrilled and ready to go to fit the ducts.

BTW, I'll chime in with the rest of the crowd and say that the the aluminum pans are really nice.

Nicole

I've been told thes ducts direct air towards the motor mounts. That makes me wonder, if the mounts would last longer, if they were not exposed to as much heat...

tdelarm

I bought one of the orginals from 928 Int. some time ago and although I havent installed it, I did butt it up under the bottom and it seems to be a great fit.

Car has been in storage so when I pull (it-him-her) out I'll attach it.

It's very nice in quality.

Tim

MikeN

Thanks to all for the responses.......when I pull the old one I'll transfer the ducts over as I always believed these were a very good thing to have on a 928.......

dr bob

More than a few cars have heat shields around rubber components to protect them from exhaust heat. It's togh to decide on these whether adding a shield would save them from radiated engine heat, or shield them from cooling airflow provided by the ducts.

---

In a related discussion-- I need to replace the motor mounts on my Explorer. Should I use the Anchor mounts or the Genuine Porsche mounts?

This isn't the question it seems-- In the early '90's Ford had Porsche do some NVH work on the Explorer, and part of the recommended fix to a frame resonance problem included using 928 hydraulic engine mounts. In the Ford case it was designed to dampen frame vibration with the engine mass, rather than the other way around. Since then, Ford has worked with their own suppliers to get a hydraulic mount at a mass-market price point. So we have kinda come full circle...

Gretch

I don't see any difference between putting a ford part on a Porsche or putting a Porsche part on a Ford. A bit like putting a spoon full of sewage in a barrel of wine vs putting a spoon full of wine in a barrel of sewage....either way you end up with a barrel of sewage......

(he says, with his 30# ford fuel injectors installed re the SC kit)

Oh well, it was a comment made for entertainment purpose only....

jorj7

Gretch,


Yes, but they are Ford Racing fuel injectors, not a cheap,of unknown
origin, replacement part for a generic Ford.

jorj7

Mike,

I use the DEVEK aluminum belly pan. I would recommend it to others. It's
held up well and has protected the bottom of my engine on numerous occasions.
It also helps with the aerodynamics of the car, which is very important to me.
I use it without the ducts, and have not had a over heating problem, even
when averaging 145 mph for a 100 miles.

MikeN

Looks like the pan from 928 Spec. is black powder coat. Anyone got one of these??

Jim bailey - 928 International

Yes George the aluminum undertray was a good idea . When we found a 928 owner who was in the business of metal fabrication we persuaded him to make the 928 International undertray . His very professional approach and the capabilities of his firm allowed him to make a extremely nice reproduction including punched louvers . He also insisted that it be powder coat painted to resist corrosion . The end result is a much improved undertray yet the economies of scale allow us to sell them for only $225 . We are expecting a partial shipment of 15-20 more the first of next week . To see a photo click on the store below and look at new products .