what works better? or do they work the same. i just put on a full exhaust and need to do some thing about the heat coming from the down pipe. and suggestions?
wrap will probably keep more heat in the down pipe which is what you want. the shield will probably just help prevent the heat from getting to other parts liek wiring. i dont know much on this topic but thats my .02
^yes. if you are running the car in the winter you will want to coat the dp then wrap it. as for the heat shield, as long as you are driving, and not sitting, there should be enough air coming through the hood scoop to push alot of the heat down and out...that is, at your current mod level.
Just beware of wrap, if you do maintenence yourself and you refill the trans spilling just a little gear lube on the wrap will soak in, and may catch fire! Not to scare you, but sometimes wrap is over-rated. A good coating is what the better idea is, but sometimes not in the budget!
so would it be a god idea to use some 1600+ degree pain t and spray the DP (to prevent rust) and the wrap it, and then spray again (to prevent wrap fprm absorbing stuff)?
Me thinks that would depend on the type of wrap you use. I would just spray it and bake it a couple of times rather than wraping it, but thats just me.
bake it? i was under the assumption that the high heat paint worked like normal spray paint. ie. spray on, let dry and re coat. is there a baking process required?
Its recommended for some, or you would have to install it without scuffing the paint off, and it's soft until baked. It all depends on the brand of paint.
use flame proof coating to avoid it ever burning off i forget who makes it, navarre champion has it, in a variety of colors!
i think that flame proof stuff might onyl be good for 1200 degrees. isnt exhuast, especially by the headers, hotter than 1200F?
yes our cars get substantially higher than 1200...i think you would be safe if you could get a 1600 degree coating
Well, paint and header coatings are completely different. If you want to keep the heat inside the pipe, you need to send the pipes out to Jet hot or swain tech to get a coating put on the pipe. Just painting it with high temp paint will do nothing for you. Not, if you were to use some header wrap, i would get the dei wrap sealing paint. The helps seal the wrap so it doesn't absorbe liquids. As for egt temp, I would say thast you would be at 1600 at full boost twards redline. So if you go jet hot, you would want to get the 2000 degree coating. Russ
^so are you saying putting the wrap and the dei paint on the downpipe would be sufficient as far as corrosion from water/salt goes?
No. Any time you wrap the pipes, you can take the life of the pipe and cut it in half (or more). The dei spay will not make it fluid proof, it will just be more likely to run off (water resistant). If you are concerned about longevity of the pipes, you will want to get them coated on the inside and outside. even if you coat just the outside, you still have moisture on the inside of the pipe the will corrode the pipe. Russ
