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Blckdak
Gen III
7/16/2001
14:29:43
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 Subject: Heat shield for Z-Tube
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Message:
Has anybody come up with or thought of a heat shield design for the Z-Tube. I've been tryin to think of some things but coming up with nothing. Anybody have an ideas?
Thanks
Erin
2000 CC 4x4 Sport
Magnaflow Exhaust, Z-Tube, Runnin AMSOIL
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Art
Dodge Dakota
7/16/2001
20:41:39
| RE: Heat shield for Z-Tube
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Message:
Ya im working on one myself just gonna do a half sheild to cover the engine side half and attatch it to the hose clamp where the filter clamps on the z tube,jus make it outa cardboard first for a template then outa some sheetmetal or aluminum,think I might jus take my template to a sheetmetal shop and get them to bend it up for me,they could make it nice and round
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albert
Dodge Dakota
7/17/2001
04:40:03
| RE: Heat shield for Z-Tube
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Message:
Thats what I did Art. I just made it long enough to wrap half way around the z-tube for support and made the bottom come over to the factory bolt used on the stock air box. I re-used the rubber grommet that is used on the stock box to hold it down. Then, I just used a zip-tie and connected it to the a/c line that runs along the fender. This setup works great and there is a noticeable difference.
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MACE
Dodge Dakota
7/17/2001
08:48:29
| RE: Heat shield for Z-Tube
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Message:
Question:
What is worse, heat or lack of air-flow?
Won't you're heat shields block air-flow to the sides of the fitler where I believe it is most critical to get air-flow?
Also, with the 4.7 and the rubber piece removed, with no heat shield, won't there be plenty of cool air coming in at cruising speeds, with the engine heat being pulled back towards the firewall?
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broeheem
Gen III
7/17/2001
14:47:55
| RE: Heat shield for Z-Tube
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Message:
I made a heat shield out of a plastic storage bin that I bought at Home Depot.
FIRST, THE INTAKE :
Starting with a rubber 3 1/2" coupler (w/ hose clamps), I put one end onto the TB, and the other onto a 90 degree 3" ABS elbow, turned DOWN about 5 degrees. Next, I attached a 13" long length of 3" ABS pipe to the elbow, after drilling a hole 2" from one end, and fitting a 2" piece of 1/2" ABS (for the PCV hose) and securing it with epoxy. Next was another 90 degree elbow - turned DOWN 45 degrees, and finally a 3" length of 3" diameter pipe, to which I'll attach the filter (I used a 5" Powerstack open-end filter from Intenseperformance). I made ABSOLUTELY SURE that all the interior surfaces were very clean.
SECOND, THE HEAT SHIELD :
I bought the bin (18" x 9") with an open top, cut one end off after making a cardboard template to match the contours of the inner fender, and "Dremeled" a 3 1/2" hole into the remaining end. I also had to cut a notch into the forward end to fit around the cruise-control bracket. To finish, I put the box in place, leaving the open areas facing the front, top and FENDER side of the engine bay, and inserted the end of the intake into the hole at the rear-facing end of the box, finally fitting the filter onto the intake from inside the box, and clamping down tight. This holds the box in place, and also keeps the intake itself from moving at all.
Careful measuring will make sure that nothing actually touches the engine or related parts (like the A/C tubes).
It now flows like crazy (although it is kinda louder than I wanted it to be). I also don't recommend removing the rubber flap next to the grille, because that will allow water to be fed directly into the filter, and I'm guessing that we ALL know what that will do to your engine.
Patriot Blue 2001 SLT Plus Club Cab
4.7L./multi-spd auto/3.55 LSD
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roger
Dodge Dakota
7/21/2001
00:32:11
| RE: Heat shield for Z-Tube
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Message:
Broeheem,
Do you have any pictures of your installed heat sheild. I made my own "Z tube" as you did. I'm looking for heat sheild ideas.
Roger
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Broeheem
Gen III
7/21/2001
19:29:12
| RE: Heat shield for Z-Tube
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Message:
Pictures have been sent....
It wasn't difficult at all, and I think that it does what it's supposed to do.
Good luck with your project!!
Patriot Blue 2001 SLT Plus Club Cab
4.7L./multi-spd auto/3.55 LSD
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sandman
Dodge Dakota
7/21/2001
21:32:54
|  RE: Heat shield for Z-Tube
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Message:
It is best to avoid mounting a heat shield to the object that you are trying to protect from heat. This is why exhaust manifold heat shields are bolted to the manifold or block and not the componets that they are protecting.
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Broeheem
Gen III
7/22/2001
00:55:08
| RE: Heat shield for Z-Tube
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Message:
Hmmm..... let's NOT try to isolate heat from our intake. It seems to me that it's a BETTER idea to block intake heat than NOT.
Anyone agree?
Patriot Blue 2001 SLT Plus Club Cab
4.7L./multi-spd auto/3.55 LSD
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nextgen
Dodge Dakota
7/23/2001
05:18:27
| RE: Heat shield for Z-Tube
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Message:
broeheem,
Could you send me the pics of the heat sheild if you get a chance. Thanks in advance...
Warbudy@attglobal.net
Tony
2000 4X4 4.7L SLT +
Jet Stage II, Z-Tube
Custom Exhust, Extang soft tonno
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Padre
Dodge Dakota
7/23/2001
08:15:42
| RE: Heat shield for Z-Tube
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Message:
Broeheem,
I too would like to see the pics of your heat shield. Thanks
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Broeheem
Gen III
7/23/2001
12:13:12
| RE: Heat shield for Z-Tube
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Message:
Padre, I sent you some pictures.
nextgen, your e-mail ain't working... I got the pictures back.
Patriot Blue 2001 SLT Plus Club Cab
4.7L./multi-spd auto/3.55 LSD
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MACE
Dodge Dakota
7/23/2001
12:49:38
| RE: Heat shield for Z-Tube
IP: Logged
Message:
Broeheem:
Did you get much run time without the heat shield to feel any improvements in performance with the heat shield?
BTW, could you post a url of your pictures or email me those pictures, would really like to check out your HS and engine bay.
Many thanks!
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Broeheem
Gen III
7/23/2001
13:08:33
| RE: Heat shield for Z-Tube
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Message:
I built the system all at once, so I can't really say if the heat shield makes much of a difference, but as a package, this system seems to have robbed me of just a little low-end, although it really comes alive at 3,000 RPM.
Soon, I'm gonna make another system to connect to the stock air-hat, and see if that gives me any more torque.
Patriot Blue 2001 SLT Plus Club Cab
4.7L./multi-spd auto/3.55 LSD
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greybeard
Gen III
7/24/2001
19:50:27
| RE: Heat shield for Z-Tube
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Message:
Guys,
The "real-deal"(from Intense peformance)Z-tube is coated with silver ceramic, so I'm wondering about the need for a heat shield?!? Ceramic tiles are what they use on the Space Shuttle, so I would think ceramic must be a superior heat conductor. P.S. No "put-downs" intended!
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Broeheem
Gen III
7/25/2001
12:01:38
| RE: Heat shield for Z-Tube
IP: Logged
Message:
The idea behind the heat shield is to control the temperature of the air being drawn into the engine, beginning at the filter (where the shield is located). The ceramic coating might tend to keep the air cool as it passes through the tube, but you must first start with cool air.
The heat shield is intended to help encourage air to flow from the fender-side of the engine bay.
Patriot Blue 2001 SLT Plus Club Cab
4.7L./multi-spd auto/3.55 LSD
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