GREGGPENN

After positioning the headers, I went around and shielded anything I could -- especially parts that were within about 1" of the headers.

One of the bigger obstacles was the oil cooler. With it's original orientation the hoses ran straight toward the secondary tubes before turning to go into the block.

After a bit of agonizing, I decided to cut/alter the mounting slots so I could turn the cooler 30-degrees counterclockwise (original direction shown in yellow below). This required that I hold the cooler while tightening. No big deal. As installed, it shouldn't turn counterclockwise while installing a new filter (by hand) and the mounting pins will still prevent it from rotating while removing old filters.



Then, instead of wrapping the hose to complete the sheilding process, I bought a piece of alum from the hardware store.
I made a shield to protect the hoses....





Here's a pic of it after mounting. I used the oil pan cooler stud and (originally) O2sensor wire bracket stud as mounting points.
(My O2 wire doesn't need the oil pan mounting point any more.)





I also wrapped the steering wheel damper with DEI cool tape...


And, covered the starter with a heat blanket....


And, wrapped the clutch hydraulic line....
(Though you can't tell in the pic, there's 2" between the line and the header tube.)

Marv02

I read somewhere wrapping headers or things next to the headers can be a fire waiting to happen.

If the wrap gets gas or oil build up on it so keep a close eye on it.

Oh yea Very nice headers I wish I could run headers I hate Ca Smog Laws.

GREGGPENN

Here's a couple of pics to show how (surprisingly) well the headers fit.

No issue with the #2 tube! Woohoo!!!


I pulled the fuel lines further away and insulated the AC/header blend box.



(This is mostly for TJM and the other VetteTech header owners.)

I'll get a topside pic of the driver's header later today.

gp

GREGGPENN

You're thinking of header wrap (which wraps around header tubes themselves.)

MK 82

Nice oven you built. It needs an insulating material on it.





Then, instead of wrapping the hose to complete the sheilding process, I bought a piece of alum from the hardware store.
I made a shield to protect the hoses....

GREGGPENN

I do have 2000-deg insulating tape on the side with the headers.

I know it's hard to see (being silver on a silver surface), but look again (pics 6 & 7).

MK 82

Putting an insulating sleeve over the hose itself would be much more effective. Allows more air to circulate.

GREGGPENN

I'm not convinced.

My shield is setup so air can run freely front to back. If a sock were on the hose(s), no air could get to the hoses since they would be covered.

enventr

beautiful job you really do nice work, but I would think about air flow. Back in 1970 I had a new charger r/t-(wish I still had it) I had made a similar bracket to shield the hose but I used asbestos (did not know then about the dangers of that material) but I believe it was cooler. It will be hard to prove unless you can somehow get a temp reading from a probe in that area. But great job as usual-you think out of the box. Will that get any air circ. from the fans?

GREGGPENN

Thank you.

The front (and length) of the shield is completely open for air to run thru. I do think it will get more air from above the crossmember than below it. Some air from the fans will make it down there (despite the GIANT brace running in front of the crank pulley).

Keep in mind the cooling for this piece is done by water circulating thru the base of the oil filter mount. (Actually, oil and water run thru a small radiator-like assembly at the base of the filter. That's the cooler.)

There's no real air cooling involved. Just need to keep heat from building up to be safe -- especially from the headers.

MK 82

What you have is better than nothing but a sleeve over the hose would be better and much easier to do. It was a nice fabricating job though.

LD85

Nice shield, you just gave me a new project to do! Thanks for the idea!

Right now, I just wrap mine with reflective heat wrap tape,

although my starter has the same wrap around shield like you show

BrianCunningham

Looks good, kind of like the factory motor mount shields


BTW You can buy firesleeving for the lines
That's what we used over at Lycoming.
http://www.aircraftspruce.com/menus/...0aeroquip.html

GREGGPENN

Glad it sparked some thought! One thing I did after posting these pics was to address my concern about fluttering.

Since the loose side was unattached, I was concerned that undercar turbulence might cause that loose side to "flutter". (And, by manually thumping the shield with my finger, I determined any rattle would be audible in the car.)

So, I did two things.

1) I put a rubber piece between the shield and the oil cooler angle bracket, then I screwed them together. (This is further up from the mounted point on that side.)

2) I drilled a hole at the top/front of the loose side. I used a zip-tie to wrap it around the block-to-cooler hose. After cinching it up, virually all movement was eliminated.

After thinking more about it this morning, I might remove that zip-tie and use an angle bracket to create stability for the outer side. I'm thinking that would be a better approach since it won't be pulled against (touching) the block-to-cooler hose. Direct contact is more likely to transfer the heat it's intended to shield.

======================================== ==============

Brian,
Thanks for the link. I'm surprise that shielding is so cheap. Spark plug socks weren't exactly free at the local auto parts shop! LOL (How would that shielding work/integrate with the hose clamps? Part of my choice to use a metal shield was to cover EVERYTHING in that area. I really wanted to shield the filter and cooler too!)

I kind of got the idea from looking at starter shielding. Besides the blanket I used, they also make a chrome "cover". It's pretty much the same kind of thing I made for the cooler with chrome plating. And, I don't think it even uses thermo tape/material.

My take is a metal shield (like this) is supposed to absorb the heat. And the layer of air between the shield and the object being protected becomes the "insulator".

TJM

Nice work but I agree with MK82.

It's a shield from the radiant heat , but could become a heat sink that stores heat as well? 6 of one or 1/2 doz. of another?

Either way I don't see it as an issue to loose sleep over. Oil lines have been coming out of that spot for Many Moons and I have never hear any issues at the track?

TJM

engle1147

Whom ever is doning you fabricating does some fine work. For its purpose that shield should work like a champ. Get that puppy all put back together.

GREGGPENN

So far, I've done my fabrication. Some things I've gone down new roads to complete. (O.K. most things.)

For people who think it will act like an oven, the pictures may not show how open it is -- especially on the top.

When a completely closed/sealed automobile is parked in the sun, temps rise about 20-30 degrees. If the "oven" affect is much smaller than that (considering the ends/top are open), I don't see my shield as having a negative affect -- especially since coolant and oil are both flowing thru the system. They're not sitting still. And, neither will the air behind the shield.

mgroshong

Very nice fit on that shield. But if i were to suggest anything it would be you put a small section of the sticky backed reflective heat tape on the side facing the header.

Unless i missed something, that's the only thing i could think of to improve it.

GREGGPENN

I refer you to post #6.

mgroshong

Ah, yes i clearly did miss that. Good stuff greggpenn.