P504 exhaust manifold - is it worth getting ceramic coated?
  • Register
  • Help
Results 1 to 10 of 10
Like Tree1Likes
  • 1 Post By jo proffi

Thread: P504 exhaust manifold - is it worth getting ceramic coated?

  1. #1
    Fellow Frogger! Pug72's Avatar
    Join Date
    Feb 2013
    Location
    Brisbane
    Posts
    281

    Default P504 exhaust manifold - is it worth getting ceramic coated?

    Hi allWhile I have the head off my 504, I am wanting to tidy up a few things including the exhaust manifold. It is the original cast manifold but just needs a tidy up.Is it worth getting it ceramic coated? Reading up on it, there are advantages of reducing under bonnet temperatures.Thanks

    Advertisement

  2. #2
    1000+ Posts jo proffi's Avatar
    Join Date
    May 2003
    Location
    sydney
    Posts
    8,369

    Default

    It will look better.
    Jo
    Wildebeest likes this.

  3. #3
    Fellow Frogger!
    Join Date
    Oct 2010
    Location
    Melbourne
    Posts
    899

    Default

    It has performance benefits when you’ve optimised pretty much everything else already.Keeps the heat inside the headers which keeps gas speed up and engine bay heat down.Also apparently pretty hard wearing, and often pretty colours.I would think for a cast header, it’s not quite as useful, as they already have decent thermal mass.For the prices I was quoted, I don’t really see a downside, even if it’s just bling.
    1984 505 Executive Auto

    206 GTi 180 - '804 Cat Cams, Jenvey DBW 48mm ITB's, Emtron KV8 ECU, HP Electronik PDM, AIM MXS Dash, Custom Wiring Harness. AST Camber Tops & Coilovers, -2deg camber hubs by Frogstomp Racing, 24mm Torsion Bars, AP Racing brakes, PeugeotSport Baffled Sump, Oil cooler, Quaife LSD, E85.

    Sandown - 1:31.5
    Winton - 1:40.2
    Wakefield - 1:13.5
    Phillip Island - 1:55.9
    Nürburgring - 10:23.ish (Fiesta ST)

    Previously, 2x 504 Wagon, 505 Wagon, 505 STi, 405.

  4. #4
    1000+ Posts FIVEDOOR's Avatar
    Join Date
    Jun 2011
    Location
    Brisbane Qld
    Posts
    19,784

    Default

    Mate of mine had it done for his E-Type Jag, both inside and out and apparently it improved scavenging, the crackling on trailing throttle was very noticeable on his car.
    Any day I wake up and don't have to go to work, is a good day
    Every day is a good day

  5. #5
    1000+ Posts PeterT's Avatar
    Join Date
    Jul 2000
    Location
    Castle Hill, Sydney
    Posts
    7,414

    Default

    Yes. My GTi6 pipes are coated and it's noticeably cooler under the bonnet and against the firewall.

    '92 205 Mi16
    '90 Mi16x4

  6. #6
    1000+ Posts Beano's Avatar
    Join Date
    Mar 2004
    Location
    Brisbane
    Posts
    2,984

    Default

    Having read all these replies, I want to do it to my own car !

    Dunno about doing it on the inside though....Jaguars are pretty over-engineered, but 504 exhaust headers are quite finely tuned. However when it is off, I would definitely give it a good reaming out to remove all that crud which will have narrowed the inside diameter. Don't breathe it in though....there may well be crud from when we had tetra-ethyl lead added to petrol.

  7. #7
    1000+ Posts Beano's Avatar
    Join Date
    Mar 2004
    Location
    Brisbane
    Posts
    2,984

    Default

    (Darned edit function not working again).

    The shop which does the ceramic coating may sand blast it first, though I'm not sure how they prepare the surface. In that case they can do the inside (and then leave it bare. Because a coating inside will reduce the diameter).

  8. #8
    Fellow Frogger!
    Join Date
    Oct 2010
    Location
    Melbourne
    Posts
    899

    Default

    The inside is where it's most useful in improving gas speeds and scavenging, the outside is mostly for bling.
    It will technically reduce the diameter, but the coating is measured in microns, not millimetres. That's not a realistic issue.
    1984 505 Executive Auto

    206 GTi 180 - '804 Cat Cams, Jenvey DBW 48mm ITB's, Emtron KV8 ECU, HP Electronik PDM, AIM MXS Dash, Custom Wiring Harness. AST Camber Tops & Coilovers, -2deg camber hubs by Frogstomp Racing, 24mm Torsion Bars, AP Racing brakes, PeugeotSport Baffled Sump, Oil cooler, Quaife LSD, E85.

    Sandown - 1:31.5
    Winton - 1:40.2
    Wakefield - 1:13.5
    Phillip Island - 1:55.9
    Nürburgring - 10:23.ish (Fiesta ST)

    Previously, 2x 504 Wagon, 505 Wagon, 505 STi, 405.

  9. #9
    1000+ Posts Beano's Avatar
    Join Date
    Mar 2004
    Location
    Brisbane
    Posts
    2,984

    Default

    Really ? Things have come along a way in the last few years....I am still thinking of epoxy powder coating.

  10. #10
    1000+ Posts bluey504's Avatar
    Join Date
    Oct 2010
    Location
    Dandenong Vic
    Posts
    1,247

    Default

    Pug 72 are you looking at the Jet Hot coating systems? All reports seem to be a thumbs up, as is the HPC. Have used various 'stuff' over the years and some just stop rust forming and others basically trap heat and burn out standard thin wall extractors.
    PeterT has the more hands on experience so give him a PM and ask what system he used.
    Brendan.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •