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View Full Version : DIY Heat Wrap DownPipe


CalBoyTex
06-22-2007, 10:11 PM
tools
-Spray Bottle- fill with water makes it easier than a bowl.
-Bowl of water-room temp
-Heat wrap- I prefer Thermo Tec ive been using that heat wrap on my rx7 works like a charm and never had any problems with it..
-High Heat Paint(optional)-seals the pores and protects from moisture.
-GLOVES!(very important!)-the wrap is a fiberglass-like material, and can irritate your hands as you are installing it.
-Snap Straps-home depot sells them and most automotive stores do aswell, these straps will help secure the beginning and the end pieces of the wrap.
-needle-nose pliers handy for twisting the ends back of the snap straps. (like a can of spam)



1.ok First off, your going to need to take off your downpipe. Very easy 4 bolts.

2. Give your DP a bath. When you are driving your DP collects so much crap from the road.. its grose.. oil and what not grime. The heat wrap needs to stick to the DP and not this Grime and Oil.

3. Spray your heay wrap with a water bottle. Do NOT SOAK!!! A nice quick spray does it nicely, or do it the hardway and dip it in water. Start wraping at the Flange that bolts up to the turbo. Overlap 1.4 of each layer in a very tight spiral. Make sure You are pulling the Heat wrap to make it tight. you can actually use painters tape along the way down to help secure it. Like every 10 times i wraped down the DP I would put a tight ring of Painters tape around just for a tight fit. **Make sure the only metal showing is the flanges on the beginning and ending of the DP. Cover the whole thing**

4. Once you have wraped your DP Get your Needle Nose Pliers and the Snap Straps and put one on the beginning of your heat wrap. One In the Middle(just for mental security reasons) and one where the DP connects to the end of the DP.

5. If it feels tight, then you did it right. Then Lightly Spray the DP again with a water bottle so the Fibers of the heat wrap stick to the DP. Let it sit in the sun or a heat lamp

6. Once the DP is Completly Dry!, spray with Hi-Heat paint, which seals the pores and protects from moisture. This is optional but i Highly reccomend it! Dont over spray, just make sure its enough to do the job. Let this also sit for an hour-to hour and a half.

7. Reinstall your DP!



This should take maby 3-4hrs including the standing time of having things dry. This is very efficent. I felt a little bit of improvemt in my acceleration. Nothing fantastic but still better safe than sorry. The colder your engine components are the better flow you will gain. Heat wrap is also useful for DP's that rattle against the sub frame.

hahnaroo
06-22-2007, 10:48 PM
Nice! I wish i had this earlier. The PM you sent me i never recieved and ended up doing it wrong. Ill go at it again in the future.

CalBoyTex
06-22-2007, 10:59 PM
Nice! I wish i had this earlier. The PM you sent me i never recieved and ended up doing it wrong. Ill go at it again in the future.

really? thats the 2nd pm ive sent someone that never got it.. hmmm...

CalBoyTex
06-23-2007, 12:29 AM
sticky maby?

ChongivityAct
06-23-2007, 12:44 AM
did i forget to mention i love you?

CalBoyTex
06-23-2007, 04:27 PM
no you didnt and please dont. lol

ChongivityAct
06-23-2007, 04:54 PM
i was not talking to you!

CalBoyTex
06-23-2007, 06:22 PM
^Lier! :P

trick000
06-25-2007, 02:02 AM
+2 on high temp sealant. I've read that some people have had their thermotec wrapped header or downpipe catch on fire when they had an oil leak. The wrap actually acted as a wick because it absorbed oil. The sealant should help prevent that.

Meat
06-25-2007, 10:41 AM
What, no pics!?!

J/P, good write up though.