[Billfrombyron]

I bought a sheet of IM shield to make a heat shield for the lower part of the manifold.

They also have a preformed one, but I refuse to internationally ship something that is available locally.

I will be using the left over material to line the engine side of the Volant box.

Bottom line this stuff works, as advertised. Will it add power? No. Does it allow you to make better use of the available power? Yes.

My IAT still stays around 154f in the mid 90s temps right now here in Abu Dhabi. At wot the Volant box drops it to near ambient temp. My thinking is if I can shield the engine bay side(eventually doing the whole box) it should in theory read ambient temperature almost all the time.

The car no longer pulls timing when she gets hot, and it's made a hell of a difference in how she drives, without altering the tune in any way. I confirmed this theory via HP tuners data logs. Everything stays nice and consistent now so I can finally move onto final tuning and hopefully Dyno soon.

Basically after removing the intake manifold, you just create a template for the area you want to cover. I used an old pizza box.

Then wipe with 99% isopropyl alcohol to remove any residue. If you are doing a stock intake, remove the craptastic gm foam from the factory.

Next peel and stick the heatshield into place.

Use the edge tape to go over the exposed fiberglass and create an edge that will look nice and protect the heatshield.

Simple and straight forward.

-Byron

 

[AAIIIC]

No need to clearance around where the button-head cap screws are for the valley cover?

Pretty cool (pun!) that it delivers measurable results in your datalogs. Not sure when I'll need to have my IM off again - hopefully not any time soon - but when I do I'll give this a shot.

 

[Billfrombyron]

No need to clearance around where the button-head cap screws are for the valley cover?

Pretty cool (pun!) that it delivers measurable results in your datalogs. Not sure when I'll need to have my IM off again - hopefully not any time soon - but when I do I'll give this a shot.

No, there is still 1/8" gap above the button head screws. And it's been an awesome week!

It doesn't pull timing anymore when It gets hot, so I am able to keep it hammer down and while it doesn't add power, it does let you use every bit of what is available.

Also my mileage has improved. I don't know if this is due to the new lower port seals, or from the shield. I'm not complaining at all. Used to biweekly fill up, now 1 time per week. Same distance driven.

The real test is coming up this summer which is expected 54c plus ambient temps.

-Byron

 

[Billfrombyron]

Had some free time, so I added the remainder of the materials to the Volant air box to shield it from engine temps and hopefully lower my IAT somewhat.

It's working!

Went from 156f to 136f. Not the win I wanted, but a solid improvement.

I'm next going to add a heat shield to the intake tube. Hopefully that will get me closer to ambient IAT.

If that doesn't work, I'll add a single mister meth injection kit. If I can drop temps to ambient or below ambient, it's worth the cost, and cheap to run.

There are 2 ways to use meth. One is to add octane and timing, the other is strictly temp reduction. I'm shooting for temp reduction as I refuse to run a bleeding edge tune on my daily driver.

The additional heat shield on the air box has made a wonderful addition and above 3k rpm it's dropping to ambient. Previous setup would only drop to ambient at WOT.

Where practical I added the heat shield, for the other areas it's simple aluminum tape as it is quite reflective in its own right. The area against the wheel well arch didn't have enough clearance to install the barrier, so I just used the tape.

I am thinking about using the same tape on the tube and around the MAF to see what, if any changes occur.

I can now comfortably rest my hand on the intake after parking the car. Same with the air box. I also sealed the lid of the Volant box to ensure it's only drawing air through the ports.

-Byron