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  #1  
Old May 23rd, 2016, 12:23 PM
javelinadave
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Lets talk about HOT seatbox solutions

Took a good multi hour road trip to ExPo this past weekend and my beatbox got HOT, real hot. I'm hoping for an under the truck solution so my pretty painted seatbox doesn't need to be covered but if it does, so be it but I'm trying not to. I do NOT have a silencer just an exhaust pipe. What have you guys done for heat reduction both underneath and on top of the seatbox?
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  #2  
Old May 23rd, 2016, 12:57 PM
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Hot ass not good! My Ninety has a heat shield mounted directly to the exhaust pipe under the seat box. It does not look home-made but I'm not sure if it's factory. It's basically 2 pipe clamps spot welded onto a half-moon shaped sheet metal...it just clamps onto the exhaust pipe. Looks simple enough to fabricate one. I've also heard of people installing heat reflecting/insulating materials inside the seat box w/ some success.
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  #3  
Old May 23rd, 2016, 01:09 PM
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Have you looked into wrapping the exhaust?
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  #4  
Old May 23rd, 2016, 01:15 PM
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The entire seat box is hot or just parts?

If the seat box is hot I can only imagine what is going on in the battery box.
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  #5  
Old May 23rd, 2016, 01:24 PM
javelinadave
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Quote:
Originally Posted by JohnsD90 View Post
Have you looked into wrapping the exhaust?
I may fab up a heat shield or wrap it

Quote:
Originally Posted by bjf View Post
The entire seat box is hot or just parts?

If the seat box is hot I can only imagine what is going on in the battery box.
That's what I'm wondering too and why the post was made although I'm sure a battery under the bonnet gets just as hot.
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  #6  
Old May 23rd, 2016, 01:52 PM
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Quote:
Originally Posted by javelinadave View Post
I may fab up a heat shield or wrap it


That's what I'm wondering too and why the post was made although I'm sure a battery under the bonnet gets just as hot.
yeah, my gas RRC gets real hot under the hood(as all RRC tend to do)

But I'm thinking of getting this for the hood of the D90 and maybe under the floor panels and seatbox.
Eastwood X-Mat Underhood and Headliner 51x39x1/4


.
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  #7  
Old May 23rd, 2016, 01:53 PM
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Mike Barnett
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I had a similar problem when I drove to Texas for SCARR. I noticed that my battery box has an extra hole towards the front that pumps hot air from the engine compartment up into the truck. Plus the holes for the battery cables don't have the plugs they are supposed to have. I bought a hole plug for the empty hole but haven't had a chance to put it in yet. Pretty sure it will make a big difference, but I'll let you know.
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  #8  
Old May 23rd, 2016, 03:15 PM
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I had the same issue. Plug the seat box holes.
There are 2 LR heat shields for the exhaust on the 110 V8. I fabricated some new ones out of stainless using the original as a guide. I can post pics tonight if you are interested.
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  #9  
Old May 23rd, 2016, 03:40 PM
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Sure, pictures would be great.
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  #10  
Old May 23rd, 2016, 05:11 PM
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Any chance you want to fabricate another set? Mine blows hot air into the cabin like I had a heater on. I think it is more about radiant heat and the need to plug those holes though as It only blows hot air in when the windows are down - that indicates an air pressure element to me. That being said, I would really like a set of heat shields
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  #11  
Old May 23rd, 2016, 06:10 PM
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Wrap the exhaust in sections near the seatbox? Build heat shield to keep the heat off the box?
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  #12  
Old May 23rd, 2016, 10:37 PM
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I have not installed the stainless new fab ones. If someone want the original stock for a pattern for the forum let me know and I can send to you.
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  #13  
Old May 24th, 2016, 08:00 AM
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Quote:
Originally Posted by Reese_D90 View Post
I have not installed the stainless new fab ones. If someone want the original stock for a pattern for the forum let me know and I can send to you.
That's excellent.
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  #14  
Old May 24th, 2016, 08:22 AM
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I'd be concerned that the stainless will still absorb/transfer heat if it doesn't have some type of reflective covering on it...


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  #15  
Old May 24th, 2016, 08:31 AM
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I was thinking the same thing. Any suggestions? Maybe something used on headers?
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  #16  
Old May 24th, 2016, 08:31 AM
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Quote:
Originally Posted by Nomar View Post
I'd be concerned that the stainless will still absorb/transfer heat if it doesn't have some type of reflective covering on it... .
I was thinking rubber grommets and fab for use as heat shields.

Wait until you experience your first defender heat rash this summer Doc. .
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  #17  
Old May 24th, 2016, 08:49 AM
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Quote:
Originally Posted by 1of40 View Post
I was thinking rubber grommets and fab for use as heat shields.

Wait until you experience your first defender heat rash this summer Doc. .
Yeah, I'm definitely interested in keeping the heat OUT.
I don't have any heat shields under mine, except for the front one near the starter.
I think my plan will be something like Reese's shields with the Eastwood liner stuck to it to reflect.


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  #18  
Old May 24th, 2016, 09:18 AM
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I know you mentioned not covering up the footwell but the exmoor matting system drastically reduced the heat through the floor and seat box for me. My floor panels and tunnel cover are out of a later model and are insulated with a reflective foil type face.
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  #19  
Old May 24th, 2016, 09:54 AM
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Quote:
Originally Posted by Nomar View Post
Yeah, I'm definitely interested in keeping the heat OUT.
I don't have any heat shields under mine, except for the front one near the starter.
I think my plan will be something like Reese's shields with the Eastwood liner stuck to it to reflect.


.
A few summers back I had a 2 door 110 with a 3.5 with wrapped headers. I swear I never felt heat on the feet. Helps to be running just the bimini top all summer. Miss that truck.
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  #20  
Old May 24th, 2016, 10:08 AM
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Quote:
Originally Posted by Nomar View Post
I'd be concerned that the stainless will still absorb/transfer heat if it doesn't have some type of reflective covering on it...
Keep in mind the fact you have a lot of air flow, usually lots of air flow at the same time the exhaust is hottest. A relatively thin sheet of metal is going to have a lot of cooling from that air flow.

Will your shield heat up? Yes. Will it re-transmit some heat to your floorboards? Yes, but greatly reduced from direct exposure to the exhaust pipe.

Will a reflective coating make it more effective? Yes. Will it make a big difference? I doubt it (opinion.) Will the reflective coating be effective after it gets dirty? No. Will you clean the reflective coating on a regular basis? I doubt it (opinion.)

I need to post a picture of the heat shield I bought. It's actually some high temperature fabric on stand off brackets attached to the pipe. And yes, I can tell the difference.

Mike
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