Notices
ScoobyNet General General Subaru Discussion

Ceramics vs heat wrapped stainless

Thread Tools
 
Search this Thread
 
Old May 16, 2020 | 08:33 PM
  #1  
MarkRF's Avatar
MarkRF
Thread Starter
Scooby Regular
 
Joined: Dec 2019
Posts: 174
Likes: 39
From: UK
Default Ceramics vs heat wrapped stainless

I’ve been waiting for a set of ceramic coated headers from RCM for 5 weeks now with no definite ETA apparently due to a holdup at zircotec due to current circumstances.

Im keen to get the car back together but really want the headers fitted before the engine goes back in so I’m now considering alternatives.

Are the ceramic coated headers actually any better than the equivalent stainless headers with heat wrap? Bearing in mind the ceramic coated versions are twice the price at £1100.

Last edited by MarkRF; May 16, 2020 at 09:13 PM.
Reply
Old May 16, 2020 | 09:30 PM
  #2  
Steve Whitehorn's Avatar
Steve Whitehorn
Scooby Regular
iTrader: (13)
 
Joined: Jan 2002
Posts: 4,036
Likes: 20
From: Kent
Default

Originally Posted by MarkRF
I’ve been waiting for a set of ceramic coated headers from RCM for 5 weeks now with no definite ETA apparently due to a holdup at zircotec due to current circumstances.

Im keen to get the car back together but really want the headers fitted before the engine goes back in so I’m now considering alternatives.

Are the ceramic coated headers actually any better than the equivalent stainless headers with heat wrap? Bearing in mind the ceramic coated versions are twice the price at £1100.
Yes they are better. Because the wrap tends to trap moisture that weakens the headers. However the main factor in durability is the grade of stainless used which tends to be T304 which is not that durable. Or buy expensive KillerB headers or I should say exhaust manifolds which are T321 grade stainless which are better quality.

So on my track car i have two options. A one off purchase of KillerB headers or treat headers a bit like clutches and brake pads - as a consumable item. So that is the route I have taken.

So don't expect them to last forever, wrapping or ceramic coating will improve their performance. But wrapping are more likely to shorten their life.

I run GT spec 2 Wrapped and expect to replace them every few years.
Reply
Old May 16, 2020 | 09:50 PM
  #3  
MarkRF's Avatar
MarkRF
Thread Starter
Scooby Regular
 
Joined: Dec 2019
Posts: 174
Likes: 39
From: UK
Default

Thanks for that reply Steve - that’s always been my understanding with wrap.. it’ll shorten the life of the pipe.

Ive got my down pipe wrapped and pretty much changed my mindset into it was now a consumable and will need changed at some point as you say.
Reply
Old May 16, 2020 | 09:56 PM
  #4  
Harryr34's Avatar
Harryr34
Scooby Regular
iTrader: (9)
 
Joined: Sep 2006
Posts: 1,724
Likes: 30
From: London
Default

I used Thermo Met recently, glad I did as the quality of their work is amazing, prices reasonable and a very fast turnaround. original plan was to go for zircotec but they quoted a 6 week lead time before the lockdown.


Reply
Old May 16, 2020 | 09:59 PM
  #5  
MarkRF's Avatar
MarkRF
Thread Starter
Scooby Regular
 
Joined: Dec 2019
Posts: 174
Likes: 39
From: UK
Default

Harry,

one alternative I’ve considered is getting the stainless headers from RCM and having them coated myself - do you mind me asking what sort of money was in what you had done? Pm me If you prefer. The stainless version come in at around £600 so that gives me around 4-500 to work with getting them coated it could be an option.

to be honest if I could just get a decent estimate of when I’d have them it would make the decision far easier.
Reply
Old May 16, 2020 | 10:08 PM
  #6  
Harryr34's Avatar
Harryr34
Scooby Regular
iTrader: (9)
 
Joined: Sep 2006
Posts: 1,724
Likes: 30
From: London
Default

Originally Posted by MarkRF
Harry,

one alternative I’ve considered is getting the stainless headers from RCM and having them coated myself - do you mind me asking what sort of money was in what you had done? Pm me If you prefer. The stainless version come in at around £600 so that gives me around 4-500 to work with getting them coated it could be an option.

to be honest if I could just get a decent estimate of when I’d have them it would make the decision far easier.
PM sent
Reply
Old May 17, 2020 | 08:07 AM
  #7  
IainMilford's Avatar
IainMilford
Scooby Regular
15 Year Member
Liked
Loved
Community Favorite
iTrader: (15)
 
Joined: Jun 2008
Posts: 3,927
Likes: 91
From: In the garage
Default

Originally Posted by Harryr34
I used Thermo Met recently, glad I did as the quality of their work is amazing, prices reasonable and a very fast turnaround. original plan was to go for zircotec but they quoted a 6 week lead time before the lockdown.

I saw a post on FB showing thermo met and it appeared to give amazing results re: the surface temperature, would be something I’d consider in the future!

I run RCM’s magma wrap on my car and other than tidying it up occasionally have never had a problem and it copes well with high EGT’s. Things to consider though is that my car lives in a garage and still runs the engine undertray so not a lot of moisture gets in there and if it does it easily gets burnt off.



Reply
Old May 17, 2020 | 08:54 AM
  #8  
Mperregil's Avatar
Mperregil
Scooby Regular
15 Year Member
Liked
iTrader: (20)
 
Joined: Jan 2007
Posts: 693
Likes: 7
From: Poole
Default

How much will it cost to do a set of RCM headers and up pipe with thermo met?
Reply
Old May 17, 2020 | 10:46 AM
  #9  
MarkRF's Avatar
MarkRF
Thread Starter
Scooby Regular
 
Joined: Dec 2019
Posts: 174
Likes: 39
From: UK
Default

Good feedback guys, thanks for the replies.

Ill get a quote for getting the stainless versions done by thermo met- I’m sort of expecting it will be more overall to have it done than the ceramics but if I get a good lead time and the results are better I don’t mind that. I think anything up to £500 is a fair price?

my only concern is that the lagging may increase the size of the pipes to the point clearance may be an issue?

Last edited by MarkRF; May 17, 2020 at 10:51 AM.
Reply
Old May 17, 2020 | 11:07 AM
  #10  
stonejedi's Avatar
stonejedi
Scooby Regular
iTrader: (51)
 
Joined: Jan 2008
Posts: 7,439
Likes: 149
Default

My lot when i got it coated by Zircotec for my project build,still looks as good today....





.SJ.

Reply
Old May 17, 2020 | 04:52 PM
  #11  
Vxr2010's Avatar
Vxr2010
Scooby Regular
10 Year Member
Liked
 
Joined: Oct 2015
Posts: 2,429
Likes: 298
From: Herts
Default

i have one car with the downpipe wrapped and one with it is standard and no wrapping at all , they are both sports cats , plus i had wrapped headers , does it keep the engine bay a bit cooler yes, does it make a big difference no , would i do the wrapping again no
Reply
Old May 18, 2020 | 08:59 AM
  #12  
stockcar's Avatar
stockcar
Scooby Regular
20 Year Member
Liked
Loved
 
Joined: Mar 2002
Posts: 6,839
Likes: 427
From: north east
Default

Zircotek had a major fire last year and this caused a massive issue with already long lead times............

bear in mind that RCM headers and (better IMO) matching Harvey Smith 'trick' up-pipes are available at more cost effective pricing
Reply
Old May 20, 2020 | 04:31 PM
  #13  
MarkRF's Avatar
MarkRF
Thread Starter
Scooby Regular
 
Joined: Dec 2019
Posts: 174
Likes: 39
From: UK
Default

Originally Posted by stockcar
bear in mind that RCM headers and (better IMO) matching Harvey Smith 'trick' up-pipes are available at more cost effective pricing
Would have happily bought from you going by your reputation on here but couldn’t get hold of you so went elsewhere.

Quote came back from thermomet in good time coming in at £650 (assuming inc vat) and a 1-2 week lead time.

Here is a picture of one they’ve previously done with surface temp reduction quoted at 70-80%

http://dmitrij-sribnyj.com/blog/ther...own-on-scr-brz







Last edited by MarkRF; May 21, 2020 at 08:31 AM.
Reply
Old May 21, 2020 | 08:39 AM
  #14  
stockcar's Avatar
stockcar
Scooby Regular
20 Year Member
Liked
Loved
 
Joined: Mar 2002
Posts: 6,839
Likes: 427
From: north east
Default

odd, we have tried to maintain someone in the office most days since this virus thing kicked off and have certainly kept up with emails...........
Reply
Old May 21, 2020 | 03:00 PM
  #15  
BrownPantsRacing's Avatar
BrownPantsRacing
Scooby Regular
iTrader: (6)
 
Joined: Oct 2010
Posts: 8,701
Likes: 128
From: Herts & Bucks
Default

Originally Posted by stockcar
odd, we have tried to maintain someone in the office most days since this virus thing kicked off and have certainly kept up with emails...........
I've never had an issue getting hold of you, even in these weird times.
Reply
Old May 23, 2020 | 01:22 PM
  #16  
joe v3sti's Avatar
joe v3sti
Scooby Regular
iTrader: (8)
 
Joined: Dec 2011
Posts: 3,244
Likes: 23
From: yorkshire
Default

Just buy RCM products from AS Performance, they are better priced anyway.
wrap them with DEI titanium againfron ASPerformance.

if you wrap them properly. Wrapping all primary’s individually. With a good overlap and lock wire done with the correct tool every inch.
They will last years with no problem what so ever.

The problem with wrapping is most people are crap at it. 2no 50ft 2” wide rolls will be needed to do headers and a down pipe. With a couple of Meters spare.

I think the last headers and down pipe I wrapped took 4hours
Reply
Old May 23, 2020 | 02:49 PM
  #17  
IainMilford's Avatar
IainMilford
Scooby Regular
15 Year Member
Liked
Loved
Community Favorite
iTrader: (15)
 
Joined: Jun 2008
Posts: 3,927
Likes: 91
From: In the garage
Default

Originally Posted by joe v3sti

if you wrap them properly. Wrapping all primary’s individually. With a good overlap and lock wire done with the correct tool every inch.
They will last years with no problem whatsoever.
Agree 👍
Reply
Old May 24, 2020 | 02:05 PM
  #18  
Kaosone's Avatar
Kaosone
Scooby Regular
 
Joined: Aug 2018
Posts: 631
Likes: 88
From: Southampton, UK
Default

DEI do a silicone spray sealant for exhaust wrap to prevent it holding moisture...

https://www.designengineering.com/hi...g-spray-black/
Reply
Old May 26, 2020 | 10:03 AM
  #19  
BrownPantsRacing's Avatar
BrownPantsRacing
Scooby Regular
iTrader: (6)
 
Joined: Oct 2010
Posts: 8,701
Likes: 128
From: Herts & Bucks
Default

Originally Posted by Kaosone
DEI do a silicone spray sealant for exhaust wrap to prevent it holding moisture...

https://www.designengineering.com/hi...g-spray-black/
Don't use that. I've heard nothing other than bad things from spraying the wrap. It seems to make it all fall apart in record time. If you fit it, tie it correctly and leave it it's much better.
Reply
Old May 26, 2020 | 10:17 AM
  #20  
Kaosone's Avatar
Kaosone
Scooby Regular
 
Joined: Aug 2018
Posts: 631
Likes: 88
From: Southampton, UK
Default

I like the look of that rigid foil sheet stuff, seems like it’d lash to headers fairly easy with some metal ties & removes all the issues with wrap...
Reply
Old Jun 7, 2020 | 03:02 PM
  #21  
daveriley123's Avatar
daveriley123
Scooby Regular
iTrader: (1)
 
Joined: Apr 2014
Posts: 244
Likes: 1
From: bolton
Default

You have removed the transport bracket before fitting
Reply
Old Jun 21, 2020 | 04:57 PM
  #22  
MarkRF's Avatar
MarkRF
Thread Starter
Scooby Regular
 
Joined: Dec 2019
Posts: 174
Likes: 39
From: UK
Default

Just closing this one off.

I was very interested in the thermomet lagging and considered wrapping either Roger Clark stainless manifolds or Fuji racing - which both seem identical. However I was assured by RCM I’d have the ceramic manifolds in due course.

After 10 weeks they’ve turned up and I fitted them this weekend. Quality seems very good, the finish on the coating seems excellent - it’ll be interesting to see how it holds up.

pics as always;







​​​​​​​
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
johnnybon
Subaru Parts
11
Jun 21, 2020 04:55 PM
gooner 1
Wanted
5
May 25, 2011 07:22 PM
Terminator X
General Technical
8
May 29, 2010 05:33 PM
Ian
General Technical
4
Mar 14, 2008 02:17 PM
chrome
Drivetrain
1
Jan 18, 2004 11:02 PM




All times are GMT +1. The time now is 12:08 AM.