Best Heat Shield For Pontoons ?

[Jim Coleman]

The headers on my Arntz are within 2" of the footboxes where the pedals are located. I don't want Cobra hot foot. The original Arntz setup was a shield that was set off from the footboxes where air could cool the backside of the shield.

With today's technology there's bound to be a better way...

Suggestions ?

Thanks,

Jim

[66AC]

Jim: What are Pontoons? Do you mean the foot boxes? If so, there is a heat shield material with silver foil on one side and an adhesive on the other. As I recall from my build, this was sold in rolls. The silver foil was/is kind of waffle dimpled. My supply was from ERA. However I suspect that this is a rather ubiquitous material and is available from many sources of supply.

Additionally, my ERA has be fitted with the optional triangular wire vents which allows warm air from the header collector area to pass into the front wheel wells and relieves air build up in the engine compartment at high speeds. Also, optional ducting from the cold air ducts is aimed at the front disc calipers and rotor as well via a 3 1/2 inch "y" connector. This promotes air flow over the front disc brake assemblies. This was a common practice and there are some very old photos of this setup in the Getty photo archives particularly with the #7 427 SC race car.

[Jim Coleman]

I think Arntz called them pontoons, but they are better described as foot boxes. I changed the post.

Thanks,

Jim

[66AC]

Ok, makes sense Jim. I think the product is called Thermo-Tec adhesive heat shield. It is sold in sheets of 12" by 24" perhaps even larger. I see it on Summit, Jegs, etc. You may want to contact Pegasus racing to see if they have something else that they could suggest.

Thermo Tec makes quite a few products for heat protection, here is their link... https://www.thermotec.com/products/h...and-protection

[patrickt]

Originally Posted by Jim Coleman

With today's technology there's bound to be a better way...

Suggestions ?

Thanks,

Jim

You've got options. The "waffle steel" is good stuff, so is Thermaflect, and several others. They even have "stealth barriers" now. This is one of the many sites offering automotive thermal barriers: https://www.heatshieldproducts.com/a...ermal-barriers

[joyridin']

This is what I used on the inside and outside of the footbox.

Floor & Tunnel Shield II - Extreme Heat Shield | Design Engineering Inc

[Jim Coleman]

Thanks, guys

I'll get in touch with these folks and get something done.

Jim

[Blas]

Originally Posted by 66AC

..... Getty photo archives particularly with the #7 427 SC race car.

Could you please send a pointer directly to these wheel well vent photos? I would like to see some variations of what has been done already if anyone has them installed.
Winter project.... thanks
Blas

[66AC]

Originally Posted by Blas

Could you please send a pointer directly to these wheel well vent photos? I would like to see some variations of what has been done already if anyone has them installed.
Winter project.... thanks
Blas

Sure, I did a Google search of R Beazell Shelby Cobra driver and you will see in the Images a slew of photos, The Black and White up on jack stands of #7 is the one you want...

https://www.gettyimages.com/photos/s...shelby%20cobra

[HTM101]

Originally Posted by Blas

Could you please send a pointer directly to these wheel well vent photos? I would like to see some variations of what has been done already if anyone has them installed.
Winter project.... thanks
Blas

Blas,
Here are several shots of the wheel well mods I made.

[Blas]

Thanks to all.... looks like a good winter project. Does it add additional dust etc to the engine compartment in anyone’s opinion? I find the #7 up on jack stands photo but see no wheel well vents in that photo just the side vent. The link posted take me to some weird advertisement site.

Blas

[patrickt]

Originally Posted by Blas

Thanks to all.... looks like a good winter project. Does it add additional dust etc to the engine compartment in anyone’s opinion? I find the #7 up on jack stands photo but see no wheel well vents in that photo just the side vent. The link posted take me to some weird advertisement site.

Blas

It does not add a noticeable amount of dust to the engine compartment. But what you will find is that at stoplights, when your fans kick on, is that you can feel the heat billow out from the wheel well and down along the side of the car. Here's a pic of mine:

[HTM101]

Originally Posted by Blas

Thanks to all.... looks like a good winter project. Does it add additional dust etc to the engine compartment in anyone’s opinion? I find the #7 up on jack stands photo but see no wheel well vents in that photo just the side vent. The link posted take me to some weird advertisement site.

Blas

Possibly a tad bit more dust, as I opened a large area. I anticipated more dust and debris than actually occurs.

The modification has been a positive gain in heat management during slow speed driving.

[66AC]

Originally Posted by Blas

Thanks to all.... looks like a good winter project. Does it add additional dust etc to the engine compartment in anyone’s opinion? I find the #7 up on jack stands photo but see no wheel well vents in that photo just the side vent. The link posted take me to some weird advertisement site.

Blas

Do you see the round hose coming in from the upper part of the wheel well? That is probably connected to a "Y" from the fresh air system in the front nacelle. So it is an air introduction hose per se, not a vent. It is aimed at the top of the caliper and rotor.

[Blas]

66AC - it was the screen vent on the rear sections of the wheel well I was referring to in my post. But thank you for your time and effort.

HTM101 - very nicely done screen and surround. You should sell those things I will have difficulty in matching the same quality in what I fabricate...well done!

Blas