Nicholbry

I would definitely have to do some temp readings before commencing with a fuel rail design. I can just see my butt in a court room with me, my attorney who's drunk because he knows he's gonna loose, and my only friend at this point - my dog - sitting in the bench. The remaining benches - vacant. On the other side of the court room - the entire 928 Rennlist clan smelling like charred hair with smoke stained faces yelling profanities in every language known to this website.

I haven't looked closely at the OEM design yet with this in mind, but I think there is an open area (where the foam typically goes) that, if left open, would assist in ventilating the part. Furthermore, I believe the only two places the part makes contact with the fuel rail is at the bolt connections on either end. An insulated grommet could be used there to settle the concerns of heat and provide a little more elevation for venting. Again, I haven't looked at it close enough yet since my car is out in Cali getting a rebuilt engine in. I'll be sure to investigate it though.

That would also be an ideal place to FINALLY give a model designation to our engine bay "928". Am I right?.

Randy V

Nobody's actually driven a car with this cap to see how hot it gets?

Odd.

Erling G-P

Mmmmm, I drove mine today, but forgot to check when I got home...

Hope to find out one of the coming days.

Cheers,
Erling

Nicholbry

I think that, although the concerns for heat are valid, we often overemphasize it. Keep in mind that there is no metal contact with this part that might add conducted heat. The oil fill neck is, of course, a high temp plastic so there isn't any conducted heat from it as there might be if it were a metal/aluminum/magnesium neck like some cars. The heat will only come from the peripheral heat generated in the environment. Will it get warm, yes, just like the aluminum strut brace, but it shouldn't be anymore of a concern than the metal clamps on our rubber hoses or the crimped ends of our lines which get much hotter due to their closer proximity to a heated component. To ease some concerns, the o-ring is commercially rated at a very high temp and will not degrade.

I don't know about the rest of us here, but I've never burned my hand from resting on the aluminum cross brace that passes along the same plane as the oil cap from a hot engine. We should not have any concerns, therefore, regarding the oil cap.

Keep in mind too that billet aluminum oil caps are a common aftermarket item available for most cars (BMW, Japs, Jaguar, Porsche 964, etc.). The heat associated with those engines are no less significant than the heat of our cars. If you still have concerns; just use it for show.

6.0-928S

It's metal. It's under the hood. IT WILL GET HOT.
So use a rag when you open it! What's the big deal? Actually aluminum fuel rail covers would help wick heat away from steel fuel rails. Think about it!
I got mine. I like it. If I'm opening my oil cap chances are I'm putting oil in & I have a rag nearby. I'll use it so I don't burn my dainty little hands.
Thanks Nick

Hammer

jthwan22

I got one too

Panzer9

I thought the same thing- the plastic filler neck won't conduct enough heat to burn you. The alum- brace only gets warm. Unless you've got pressurized oil splashing against the cap- not likely- should remain comfortable to the touch.

Giovanni

Plus you can powder coat it to match the other engine parts.

Btw, why asking the question twice Randy?

Nicholbry

Great looking engine bay jthwan22. The detail to the alpha/numerals over silver is spot on. Thanks for the feedback; it looks appropriate in there.

BTW, what did you use for intake tubes; they look smooth and sleek? What else do you have going on under there?

V8 Man

Hi Nicholbry and others !

How about an alu.fuel rail with cooling fins ? It can be anodized in what ever colour you`d like. OR..... would that alu.rail pick up so much heat from the engine bay to only make things worse ?
Just a thougt

The_Remora

Actually, early '87's (and cars prior to that I believe) have aluminum filler necks, not plastic, so more heat would be conducted. Not that I think thats a real problem, as 6.0 said, you use a rag when handling hte cap.

Nicholbry

Ketil, that will be something that I will be looking into as soon as I have my car back to do some temp readings. I don't think there would be much of an obstacle to overcome there.

V8 Man

COOL

hacker-pschorr

How many did Brendan buy?

Randy V

Because I've seen that a non-answer is actually an answer.

The clear answer here is that it gets hot - perhaps too hot to be accessed normally.

That's all.