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Tunnel Plate Heat Shield?

 
Old 01-08-2019, 06:25 PM
  #1  
drewkeen
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Default Tunnel Plate Heat Shield?

I have been reading up on this. I see there are options from ceramic coating, to precut insulation to DIY solutions.

I just want to cut down a bit of the heat coming from my tunnel into the car. It is not a daily driver so I do not need the best thing available, just something to help with the heat.

I have seen that some of the DIY solution have an adhesive that isn't high temp rated and have fallen on the exhaust creating a fire hazard. I do not want this either, but think that the pricing on pre cut kits is a bit on the high side.


Anyone have a recommendation on a type of heat insulation that will hold up in this environment and not be overly expensive?
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Old 01-08-2019, 07:11 PM
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Originally Posted by Yello95 View Post
I got an Elite Engineering thermal abs of steel tunnel plate years ago and it made a big difference in cabin temperature and body control....well worth the cost in my opinion...
I don't have one yet, so no real review, but this is the very unit I intend to buy when the time comes.
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Old 01-08-2019, 07:19 PM
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Originally Posted by 'Shifter View Post
I don't have one yet, so no real review, but this is the very unit I intend to buy when the time comes.
one of the best functional mods I have done so far, in addition to sway bars, shocks, heat extracting hood, exhaust, blackwing air filterand a few other for looks only mods.....
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Old 01-09-2019, 09:42 AM
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The Elite Engineerimg product is probably the best known.
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Old 01-09-2019, 10:48 AM
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Thanks for the replies.

I'm thinking of buying DEI 050502 heat shield and putting this on the tunnel plate. Has anyone else done this? We're you happy with it or did you end up buying the larger plate with ceramic coating?
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Old 01-09-2019, 12:41 PM
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I don't have the 'elite' plate. I'm sure it's a great product. But if you drop the exhaust and remove the OE plate, I recommend you insulate the tunnel above and alongside the torque tube. The TT gets very hot since it connects the engine and tranny. It's well worth the extra effort. I did mine with inexpensive products .... as well as the tunnel around the exhaust. The heat reduction has been dramatic. 90% improvement. Just my $.02.

Last edited by jost6453; 01-10-2019 at 04:21 PM.
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Old 01-09-2019, 02:42 PM
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Originally Posted by Yello95 View Post
I got an Elite Engineering thermal abs of steel tunnel plate years ago and it made a big difference in cabin temperature and body control....well worth the cost in my opinion...
Originally Posted by Vetteman Jack View Post
The Elite Engineerimg product is probably the best known.
Agree 100% with both of these guys. I was skeptical but purchased it. That along with insulating the interior with Cool King aluminum backed foam made a WORLD of DIFFERENCE in cabin temps during the summer.
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Old 01-09-2019, 10:31 PM
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Originally Posted by jost6453 View Post
I don't have the 'elite' plate. I'm sure it's a great product. But if you drop the exhaust and remove the OE plate, I recommend you insulate the tunnel above and alongside the torque tube. The TT gets very hot since it connects the engine and tranny. It's well with the extra effort. I did mine with inexpensive products .... as well as the tunnel around the exhaust. The heat reduction has been dramatic. 90% improvement. Just my $.02.
Please share which " inexpensive products " you used and how you installed them.
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SG Lou (01-21-2019)
Old 01-10-2019, 12:20 AM
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Originally Posted by jrprich View Post
Please share which " inexpensive products " you used and how you installed them.
It's been years ago so I can't remember exactly what I used. But I know I applied a dynamat-like material to the tunnel first. Then I applied a foil-faced closed cell 1/4" foam (like you can get at Home Depot). Both have adhesive backing. I just cut them in strips .... maybe12" wide, snaked over the TT and applied to the tunnel. Easy to do. The whole project cost maybe $100.

Last edited by jost6453; 01-10-2019 at 12:23 AM.
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Old 01-10-2019, 06:55 AM
  #10  
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Originally Posted by Yello95 View Post
I got an Elite Engineering thermal abs of steel tunnel plate years ago and it made a big difference in cabin temperature and body control....well worth the cost in my opinion...
I agree, very effective.
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Old 01-10-2019, 12:19 PM
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I got an Elite Engineering thermal abs of steel tunnel plate years ago and it made a big difference in cabin temperature and body control....well worth the cost in my opinion...
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Old 01-10-2019, 02:13 PM
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Make sure you get the one with the thermal blanket. I added one of the plates without the thermal blanket and I still can't park my iphone in the console without it overheating. The plate did stiffen up the suspension a bit. I'm just sorry that I went cheap and did not add the blanket
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Old 01-10-2019, 02:17 PM
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Originally Posted by KAGEY228 View Post
Make sure you get the one with the thermal blanket. I added one of the plates without the thermal blanket and I still can't park my iphone in the console without it overheating. The plate did stiffen up the suspension a bit. I'm just sorry that I went cheap and did not add the blanket
Mine has the blanket.
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Yello95 (01-11-2019)
Old 01-11-2019, 10:05 PM
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I've been thinking about adding this on my '04 Z06 track car.

How hard is it to remove the exhaust system on a 15 year old car with 35,000 miles?

Last edited by Keppler; 01-11-2019 at 11:32 PM.
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Old 01-11-2019, 11:49 PM
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Originally Posted by Keppler View Post
I've been thinking about adding this on my '04 Z06 track car.

How hard is it to remove the exhaust system on a 15 year old car with 35,000 miles?
Not difficult at all if you can get it up on a lift...



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Old 01-12-2019, 09:12 AM
  #16  
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Originally Posted by jost6453 View Post
I don't have the 'elite' plate. I'm sure it's a great product. But if you drop the exhaust and remove the OE plate, I recommend you insulate the tunnel above and alongside the torque tube. The TT gets very hot since it connects the engine and tranny. It's well worth the extra effort. I did mine with inexpensive products .... as well as the tunnel around the exhaust. The heat reduction has been dramatic. 90% improvement. Just my $.02.
the torque tube doesn’t get hot because it’s “connected to the engine and tranny”.

it gets hot because there’s an exhaust 1” away that runs it’s entire length.
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Old 01-12-2019, 10:41 AM
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Originally Posted by ~Josh View Post

the torque tube doesn’t get hot because it’s “connected to the engine and tranny”.

it gets hot because there’s an exhaust 1” away that runs it’s entire length.
Belive that if you want. So you are saying the exhaust radiates heat to the plate, and it radiates heat to the TT such that it reaches 150 degrees? Right. On the other hand, the front of the TT is mounted to a hot engine and the rear to the tranny. The TT is a perfect heat conduit. Try insulating just the underside of the plate and let us know how that works. That was my first attempt at heat reduction and results were disappointing. Crawl under the car after a spirited drive and place your hand on the TT just in front of the tranny. Let us know how long you can keep your hand there.

Last edited by jost6453; 01-12-2019 at 11:46 AM.
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Old 01-12-2019, 11:18 AM
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Originally Posted by jost6453 View Post


Belive that if you want. So you are saying the exhaust radiates heat to the plate, and it radiates heat to the TT such that it reaches 150 degrees? Right. On the other hand, the front of the TT is mounted to a hot engine and the rear to the tranny. The TT is a perfect heat conduit. Try insulating just the underside of the plate and let us know that works. That was my first attempt at heat reduction and results were disappointing. Crawl under the car after a spirited drive and place your hand on the TT just in front of the tranny. Let us know how long you can keep your hand there.
The elite engineering plate I have has the insulating material facing the exhaust

And I don’t need to “believe that if you want”... I’ve forgotten more about the inner workings of the c5 than you’ll ever know.

Here’s a picture from last night of the bearings I pressed on for my transmission.

Have you built your own engine, transmission, torque tube, and differential yourself?


The radiant heat in the tunnel is due to the exhaust that runs in the channel.

Believe whatever else you want.
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Old 01-12-2019, 11:23 AM
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Wrap your exhaust. See how that changes the heat felt in the center console. Night and day difference.
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Old 01-12-2019, 11:44 AM
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Originally Posted by ~Josh View Post

The elite engineering plate I have has the insulating material facing the exhaust

And I don’t need to “believe that if you want”... I’ve forgotten more about the inner workings of the c5 than you’ll ever know.

Here’s a picture from last night of the bearings I pressed on for my transmission.

Have you built your own engine, transmission, torque tube, and differential yourself?


The radiant heat in the tunnel is due to the exhaust that runs in the channel.

Believe whatever else you want.
I'm impressed. Have you ever taken an engineering course on thermodynamics and heat transfer? Let me know how the 'hand test' works out. I have to admit that heat was not such a big deal on my '02 coupe but a complete insulation of the tunnel made a whopping difference on the '11 GS .... so I went back and did the '02 also. I can keep candy in the console on each vehicle.
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