I have some info from HPC where they do a test on a 1600cc turbo mazda using there Hyper extreme they noticed some big temperature drops and actually gained a good amount of power on the dyno.

From what I have seen the coatings burn off, not flake off if your worried about your turbo etc.. They are actually very resilient will take a long time for that happen if you are using the correct coating for your application.

 

I just had my mani coated by http://www.performancecoatings.com. There's some good info on their site as well.

I think one of the main reasons for coating inside and out is to completely seal the part from any form of corrosion. And the prep is as important as the coating itself, so flaking shouldn't be an issue.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by V-SPEC 1 &raquo;</TD></TR><TR><TD CLASS="quote">Coating the inside of the manifold i think is good but, when the coating starts to peel out, and where is it going to? its going into your turbo and damage it. Even though the company said it has a lifetime warranty against flaking or peeling, it's going to peel out eventually.</TD></TR></TABLE>

The pigments in the colors are not able to with stand certain temps. That is why the silver color coatings are not rated as high as the black coatings. Choose the incorrectly rated coating and your ish is going to peel and flake.

 

hmmm havent really figured anything out yet. maybe we will have to do some resarch

 

This is a very informative thread. I'm learning a lot... keep it up, folks

 

when i was looking to get my parts coated...i decided to contact HPC. they told me that their black coating provides protection up to 2000 deg. one of the guys there told me that they do not coat the inside of a exhaust manifold or turbine because of the possibility of the coating chipping and running through the turbo and damaging things.

thats just what i was told by HPC

i dont think i would want to risk damaging my turbo by coating the inside.

 

I know alot of you are worried about the coating flaking off and going into your turbo, but if the material is prepped and the coating applied correctly then you should not have any problems with flaking. I have had it insalled on A car about 6-7 years ago A turbo 16V rabbit and we did the pistons,combustion cambers,valves,and exhaust ports and it still is running strong to this day on the same motor.

 

I had my old manifold jethot 2000 coated, along with the downpipe and the dumptube. Total cost was $300 bucks plus or minus. I didn't test it before hand, but i will say that under hood temps weren't that hot. with my new topmount manifold and downpipe which is all stainless, under hood temps are extreme. This winter i'm looking forward to sending off the manifold, downpipe and dumptube again, to have them coated.

I sold the above manifold aroudn 1yr after havign it coated, with over 8k miles on the setup. When the manifold was pulled off, the coating looked exactly the same as it did the day i had i got it back from being coated. The inside never flaked or chipped off. the stuff is pretty durable as well, I know i dropped a few sockets, flatheads on it and never knocked off any of the coating.

 

I am sending my stuff out to get treated too.
I wish the polished look stuff held up better. I need some bling. Black kinda kills the look of my bay, but I learned from mt ITR underhood temps can get sooooo severe and it takes forever to cool down and kills performance. It has to.

 

great 411

 

My question would be if they are willing to add layers the outside coating.

 

is a 2000 degree coating really needed?
Opinions on the temps of coatings for higher HP turbo cars?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by itr206 &raquo;</TD></TR><TR><TD CLASS="quote">is a 2000 degree coating really needed?
Opinions on the temps of coatings for higher HP turbo cars?</TD></TR></TABLE>

when i talked to jet hot, they said thier other coatings were only good to 1300 degrees, so i would think that for a downpipe and dumptube you could probably get away with a lesser coating, but for a manifold and turbo i wouldn't dare.


Also, question on those that have coated thier exhaust housings, are any of you scared about tolerances on the inside? the reason i ask is my GT35e turbo, seems to fill the exhaust housing pretty well, i'd hate to have it coated, to only see the blades hit the coating. I know the jet hot 2000 coating was pretty thickly coated. that stuff was tough, i had a small leak around my wastegate before i put some RTV on it, due to not retapping the threads and a bolt backing out, it leaked for a good while and the coating was still perfect. with the pressure of that leak, i would have expected that some owuld have came off.

 

I use Techline coatings, do it yourself, you have to be able to sanblast the parts, not glassbead.
Been using their stuff for 12-13 years.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by seen4ever &raquo;</TD></TR><TR><TD CLASS="quote">when i talked to jet hot, they said thier other coatings were only good to 1300 degrees, so i would think that for a downpipe and dumptube you could probably get away with a lesser coating, but for a manifold and turbo i wouldn't dare.


Also, question on those that have coated thier exhaust housings, are any of you scared about tolerances on the inside? the reason i ask is my GT35e turbo, seems to fill the exhaust housing pretty well, i'd hate to have it coated, to only see the blades hit the coating. I know the jet hot 2000 coating was pretty thickly coated. that stuff was tough, i had a small leak around my wastegate before i put some RTV on it, due to not retapping the threads and a bolt backing out, it leaked for a good while and the coating was still perfect. with the pressure of that leak, i would have expected that some owuld have came off.</TD></TR></TABLE>

when i had my turbine housing done.. They did not coat the inside of the turbine housing.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rhettster &raquo;</TD></TR><TR><TD CLASS="quote">I just had my mani coated by http://www.performancecoatings.com. There's some good info on their site as well.
</TD></TR></TABLE>

one of my good friends recommended me to go to them as well. he had his sti turbo coated by them and suggested i coat the exhaust side of my turbo. i'm not too sure what he had done exactly though. what did you have them do for you? and how long did they take to do yours? pricing?


would you guys say getting the downpipe coated is worth the money? or is it better just to thermal wrap?

 

HPC offers a 1600 degree option .I was thinking about that all the way around

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LiTtOGPiMp &raquo;</TD></TR><TR><TD CLASS="quote">

one of my good friends recommended me to go to them as well. he had his sti turbo coated by them and suggested i coat the exhaust side of my turbo. i'm not too sure what he had done exactly though. what did you have them do for you? and how long did they take to do yours? pricing?


would you guys say getting the downpipe coated is worth the money? or is it better just to thermal wrap?</TD></TR></TABLE>

the only real advantage to coating the downpipe is reduced underhood temps. it also reduces spool time.... remember turbos work on heat and pressure differentials. more heat and pressure before the turbo, less after

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by V-SPEC 1 &raquo;</TD></TR><TR><TD CLASS="quote">Coating the inside of the manifold i think is good but, when the coating starts to peel out, and where is it going to? its going into your turbo and damage it. Even though the company said it has a lifetime warranty against flaking or peeling, it's going to peel out eventually.</TD></TR></TABLE>

I though about this too but did the inside and figured if something is going to flake it would be the carbon build up, isn't that just as bad? what do you think?

Im going to get my ne EL mani done again soon

 

Im ready to send off my manifold and turbo housing..

I need the quickest turnaround, and i want the white coating..

anyone got a place?

 

theshodan coated my gt35e . i think it helps

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by andysila &raquo;</TD></TR><TR><TD CLASS="quote">Whats the difference between heat-wrap and coatings? Advantanges and disadvantages?</TD></TR></TABLE>

Interested too

 

heat wrap sucks. It smokes like a ****** when you install it.
Ill never use it again

 

how about these heat shields by DEI (http://www.designengineering.com/) or from coolrideproducts.com?

do you think blocking the heat from escaping through the hood would increase the under hood temps?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jordo@KAP &raquo;</TD></TR><TR><TD CLASS="quote">Im ready to send off my manifold and turbo housing..

I need the quickest turnaround, and i want the white coating..

anyone got a place?</TD></TR></TABLE>

i dont care about turnaround, i dont care about color, i just want to know who is doing the best coating and want to send a LOT of stuff out...

so whos the best?