Seeing the bleeder in the hole there, i'm guessing that you'll put that aerogel under the manifold and secure it in place of the IMD.
I wish I had a piece of that stuff to lay on top of the SC and water pump.

 

Ah, but that is what I'm pondering! The intake manifold was very hot, so I couldn't try yet, but I want to put this under the IM, and over the SC. I work from home on Fridays, so I'll give it a shot tomorrow...

 

That's great Tony, please let us know if/how it fits under the manifold.

I think the ideal piece of aerogel for under the manifold would be shaped similar to the state of Connecticut...

...but the lower left corner would go straight out, and not at an angle, you would then be able to fit it in between the manifold and the SC outlet horn.

Sorry, kind of an odd reference, but it's the only thing I could think of that had a similar shape.

 

I don't imagine that it will be an easy fit... and not the perfect shape, but I shall try!

 

Yeah...me too...

 

The DFIC Aerogel blanket is darn near the right size/shape for the task at-hand - to go under IM, and cover the both the SC and rad hose. I was not able to do so, and think the only reason was because of the grey hardline off of the SC. I have this cut and capped, but not far down enough to allow for this shield to be slid-in...

So... if such a product were to be fabricated, there should be a provision for this line, and I'm thinking a slit, with overlap, or simply a hole (which would require IM removal though, well maybe not). Cutting the Aerogel is not a good solution because of the contents inside...

No cutting of the rad shroud, yet.

 

Thanks for posting Tony, too bad you couldn't get in there.
Are you saying that it's the correct thickness already? We would then only need one with specific dimensions and shape with no holes in it, right?

Man, I forgot about that PCV line, and it's not the easiest thing to access down there. This will require some more thought...

Both of your ideas would work, but if there is just a hole in the aerogel for that line, we could always pop the line out of the SC, put it through the hole and plug it back in. That would save removing the manifold.
As for the slit with overlap, that would definitely be easier to install.

 

I think the thickness will make for a tight fit in a couple areas, namely on the IC inlet side, but I think it could be tugged into place. Yes, popping out the hard grey SC line at the SC looks possible, but given the tight quarters, mabye not so easy...

The more I think about it, I feel that the majority of the heat imparted to the IM is from its direct connection to the head, as opposed to the SC heating the air the below it. My drive yesterday saw me in boost very little, yet the IM was very hot. Air mgt might, like with the modifications done in this thread, should help a little by putting some cooler air on IM, and by clearing this area's hotter air from "infecting" other components, like our beloved ICs...

I think I'll try to remove the rad shroud a la Dr. Phil. Here in CA I might need a stockish look come smog inspection time, and with that, I'll probably put back in the stock box, and all related plumbing... What Dremel cutters, wheels, grinders were used?

 

Is anything ever easy on this car?
Where the SC outlet horn wraps around the manifold is very tight, i'm going to try and find something to fit in between there to help keep the heat off that end of the manifold.

How sweet would a molded plastic(phenolic?) intake manifold be?

I think this is the bit I have in my Dremel...

http://www.dremel.com/en-us/attachme...=66357&I=66360
I pretty much just followed the flat of the shroud with it, I still need to smooth it up a little.

 

Cool, I think I've got that bit, thank you.

The more I think (once again) about this, I don't know if I want to cover the SC. In doing so, we then superheat it, which of course is not good. We want the SC to disperse heat, so I just want to focus on airflow there...

Thanks again for the bit photo!

 

You're welcome.

I hear what you're saying, we don't want to cover the SC and at the same time we don't want to stick anything to the bottom of the manifold.

 

Well, I've already done it! Cut up the Aerogel and installed it inbetween the manifold and the SC. No easy fit, or feat, for that matter. More details in the AM.

Phil "doing a Bradbury" Gandini

 

Dang! Look forward to the photo(s)... I was under the impression that the Aerogel material was like very small particles sealed within the stiched blanket. Thus my concern about cutting it (letting it out)... but then, I could be wrong. Either way, I applaud the effort! Thanks Phil.

 

How about an thermal barrier intake manifold gasket:

http://cgi.ebay.com/ebaymotors/89-93...QQcmdZViewItem

Yes it's for the Miata, but surely this idea would help another few %?

 

Anyone ever think of making a duct that seals under the IC then goes back and turns up to seal with foam against the bonet hood with a cut out Aftermarket vent hole to create a channel for the IC? Wouldnt air rush thru IC and be exhaled thru this duct continuously flushing the heat at speed?

 

Alex5: These have been discussed before--and my recollection is that the thicker the better-but there's not much room for thick ones, and they shift lots of things (fuel lines, etc) causing some alignment problems. I'd like to hear from someone who actually tried this, though!

Back to the Aerogel blanket. I cut mine up and it's 3 layers with a shiny Aluminized cloth, then a wierd bluish felt-like cloth and then the black cloth. I thought the black cloth was the one impregnated with the aerogel, but it could be the internal one.
As to the fit, unfortunately the manifold actually touches (!) the SC horn at toward the left end where the manifold starts tapering toward the bung at the extreme left end (I don't have graphic support at home, but will caption a photo as soon as possible.) Anyway, I had to cut the blanket around this area to make it fit between, so I don't have full coverage. This could simply be normal variance between cars and someone else might be able to slide the blanket in between across the entire manifold surface in their case. My thinking was that any amount of thermal barrier is a good idea although I may have created a hot spot for cylinder 1 (we'll see I guess). The blanket is held in place by my diverter and runs up the curve of the SC outlet horn to the clamps.

 

This is what M7 is bringing to market. Randy of M7 had one on his car at AMVIV to show people. There are a few photos of his car elsewhere here on NAM including this one: (I understand this is a prototype not the final product)

 

Do you think a piece of coated 16g aluminum plate would fit? I don't have a DFIC to make the fitment but if you could make a template out of poster board I could make 1.

 

In my case it's actually touching! I tried to fit a think piece of material and it caught. I'm not sure everyone's would be the same and there's a reasonable amount of space elsewhere but just at the one spot it's a no-go. This must have been a hotter spot on the manifold before, but my worry is that with the aerogel blanket elsewhere now, it might exaccerbate the situation.
I need one of those IR surface temp gauges to measure manifold temps on the outside, now. (Anyone have a recommendation?)

btw, does anyone know where the IATs are measured (location of sensor on manifold)?

 

There is no sensor that I can find. You can look at the wir diag. If you can find 1 Please let me know. For testing I use a hand held IRT.

Touching? The IC rests on the manifold? That can't be good.

 

#1: The OBD-II measures IATs for fuel and timing control--so there must be a sensor somewhere on the manifold. RealOEM diagrams show nothing, but they are very poor diagrams anyway, especially for details.
#2: the manifold is touching the SC horn underneath and toward the back--very hard to see without moving lots of parts and removing the shroud. The IC is not involved in this mod, btw.

 

The only way the IAT can be measured is the T-MAP to intake manifold. This is the only sensor.

When time permits I'll take a look at #2.

 

DrPhil, please post pics when you can.
As for the IAT sensor, i'm thinking the MAP in the front may pull double duty, as there are four wires coming out of the connector. It could also be a "calculated" number between the two MAP sensors.

I thought about trying some of this stuff from McMaster-Carr...
Paper

• Temperature Range: -425° to +1200° F
• Heat Flow Rate (K-factor): 0.21 Btu/hr. x in./sq. ft. @ 75° F
• Density: 8.7 lbs./cu. ft.
• Color: White

Fiberglass paper withstands high temperatures without shrinking or losing shape. Use it to insulate air furnaces, hot water tanks, and air conditioning ducts. Meets UL 94V0.
1/8"Thick 16"Wide 10 ft Long $23.96 Each #9323K21

 

It's possible that T-MAP stands for "temperature - manifold absolute pressure"? In that case it is as PARTSMAN says.
Anyway, I got 1 layer of the black fabric (the aerogel impregnated fiber from my recollection of talks with Peter/M7) between the manifold and SC this morning. 3 layers of Al reflector and insulator pad elsewhere.
No chance to drive this weekend, so will have to wait until Monday but that's to the airport... I will have to wait till Thursday for full pictures, sorry.

 

It is as Partsman says & the location is correct, however IATs that it displays on a scan are not actual temps. I looked at these temps with some medical equipment last July. It could be that the temps are an average over some period of time?????
Hey Partsman what do you think? Also the fiberglass paper is a great idea ( not to mention the cost ). I like it.....