Is my Murice running too hot? | FerrariChat
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Is my Murice running too hot?

Discussion in 'LamborghiniChat.com' started by SFchallenge, Aug 5, 2007.

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  1. SFchallenge

    SFchallenge F1 World Champ

    Jun 28, 2004
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    Jon Wijaya
    #1 SFchallenge, Aug 5, 2007
    OK, mine's a daily driver in the tropics but I do no more than 5krpm & keep below 90mph. It shows check engine light once in a while during idling but would go away once I drive it a little. Water/oil temp etc are always normal. My days are about 30 degrees Celcius while nights are about 25+/-.

    I have Larini sports exhaust (which is basically straight thru) & with the new Quicksilver quadpipes (again straight thru) I find that it's running way too hot now. It seems to be not so hot when I had the Larini Revolver tail pipes (has built in CATs)

    It's so bad now that the plastic license plate above is getting warped & when I touch the black plastic exhaust grille, it scotches my hand. Same as the area 20cm around it. I'm worried it'll start to melt the tail lamp wiring harnesses etc back there. Even the metal Lambo word @ the tail is hot.

    I know many earlier Ferraris up to 360s have this same problem & especially bad when they install Tubis etc.

    What's the best method to cool it? Shall I ceramic coat the exhaust pipes or use those heat wraps? My car has primary Cats. Maybe I should coat/wrap the headers too? I've read that wrapping headers can trap moisture & create more problem.

    When I had my Larini revolver tail pipes on, it doesn't seem to be that hot & I did a track day with it without issues & the license plate was never warped. I did see Murcies getting overheated on trackdays over Gallardos & the temp on Sepang track can be very hot.

    Are your Murcies running that HOT? I don't remember my Gallardo being that hot.
     
  2. Sportscarnut

    Sportscarnut Formula Junior

    Sep 12, 2005
    820
    #2 Sportscarnut, Aug 6, 2007
    Hi Jon,

    FWIW - I've got the MS Racing Stage II exhaust system (all 4 cats removed) on my Murcie. I know they heat wrapped the headers during the installation because of the extreme heat they give off (I was told this was a normal procedure), but the car runs at normal temperatures and the rear tail pipes are hot but no where near to the point that you describe. I live in Southern California near the San Gabriel Mountains where the temperature reaches 90 to 100 degrees on a regular basis in the summer months and so far I've had no over heating issues and no engine check lights. I drive my car 2 or 3 days a week averaging about 500 miles a month.

    Sounds like a great exhaust setup you have but your situation seems a bit extreme, have you asked an authorized dealer or the folks who installed the exhaust systems what they think?

    Good luck and keep us posted on your progress
     
  3. YellowMurci

    YellowMurci Formula 3
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    Mar 17, 2005
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    #3 YellowMurci, Aug 6, 2007
    Mine never ran that hot!
     
  4. 2NA

    2NA F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 29, 2006
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    Tim Keseluk
    #4 2NA, Aug 6, 2007
    Sounds like your engine is running at normal temp but that the pipes are giving off too much heat.

    It might be possible to fabricate small heat shields to deflect some of that heat away from problem areas but I can't say for sure from Minnesota.

    Both the ceramic coating (Jet-Hot) and the heat wraps are effective. The heat wrap is probably better but in the tropics you would likely have corrosion issues. The ceramic coating may help some but would require that you remove everything and ship it to where the coating is applied. Then you'd have to reassemble everything. There could be quite a lead-time.

    I like the heat shield idea (if feasible) because it wouldn't require as much disassembly.

    Perhaps a combination of approaches would be best.
     
  5. SFchallenge

    SFchallenge F1 World Champ

    Jun 28, 2004
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    Jon Wijaya
    #5 SFchallenge, Aug 6, 2007
    Thanks guys. I'm sending my car back to put back my revolver & observe. I'll most probably build two heat shields, one above the tailpipe & one inside the muffler area. Then heat wrap the muffler pipes since they don't get water & are not seen behind the grille.

    The Quicksilver Quadpipes sound amazing with my straight thru Larini sports exhaust pipes. Like Megaphones on V12, very very aggressive.

    I'll report back on the progress & thanks a lot for the replies!
    Jon
     
  6. pdisme

    pdisme Formula 3

    Oct 9, 2006
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    #6 pdisme, Aug 6, 2007
    Is it running normal otherwise? Maybe some sensors were removed and it's running too lean now? Has the engine temp changed at all?
     
  7. Ade

    Ade Formula 3

    Jan 31, 2004
    2,102
    UK
    #7 Ade, Aug 6, 2007
    I have a big bore Tubi on my Murcie, with 2 Cats in place (Euro spec , not 4 CATS like US spec apparently).

    Rear heat is very high, but nothing has melted or is close to melting as you describe.
     
  8. SFchallenge

    SFchallenge F1 World Champ

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    #8 SFchallenge, Aug 7, 2007
    Last edited by a moderator: Sep 7, 2017
    Yes, you raised a very good point on the lean part. I'll send my car in for a full system check after this & then the car goes for a paint touch up :)

    We've taken the exhaust apart & will be heat-wrapping part of the Larini system, giving some allowance from the joints to prevent breakage & I'm sure it'll run a little cooler.

    Here are some pics of the system. The Larini Revolver is lighter than the Quicksilver Quadpipes but the latter sounds real bad-boy ;)
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  9. pdisme

    pdisme Formula 3

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    #9 pdisme, Aug 7, 2007
    Do you have any vids of either exhaust on your car? I've started a Murci exhaust thread at http://www.*********.com/showthread.php?t=1470 and am trying to get clips from all available aftermarket exhaust systems; I've got one for the Gallardo pretty much complete but I find less Murci's with exhaust mods. A friend has the quicksilver on his Murci but not the quad pipes, I've never heard the revolver sound.
     
  10. SFchallenge

    SFchallenge F1 World Champ

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    #10 SFchallenge, Aug 7, 2007
    Sadly, I don't have a proper recorder. Those cheap digital cams don't get the most accurate recordings, I've done it before but the real thing sounds totally different. Our "Euro" pri Cats V12s sound very different from the Gallardos, a deep growl & with the Larini it's even better. My Quadpipes sound like 1.5-2x of a Stradale & it magnifies everything u do so up/downshifts are very audible from the well insulated cabin & when I get the timing wrong, everybody hears it :D

    I'm sure the full Quicksilver system sounds even "worse". Basically, IMHO loud doesn't mean it's nice. It's the tone & control, very much like choosing speakers.
     
  11. afiqmeister

    afiqmeister Karting

    Jun 28, 2006
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    #11 afiqmeister, Aug 7, 2007
    wow....hope you can post pics after you had fix the new exhaust system onto your car....wonder how it sounds like ?
     
  12. SFchallenge

    SFchallenge F1 World Champ

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    #12 SFchallenge, Aug 11, 2007
    Last edited by a moderator: Sep 7, 2017
    Hi all. I finally did the heat wrap on the "muffler". Sadly we didn't get a heat gun to do a pre & post temperature test. The heat wrap was flew in overnight from US called Thermo-tec & can withstand up to 2000F. Also used their clips to complete a nice clean look as well. I'll be adding a reflective heat shield just above the tailpipes & best of all, the boys ordered a carbon fibre number plate for me to replace the warped plastic plate

    A road test in hot noon shows that it's still very hot on the back area but the engine compartment is significantly cooler.

    I also lowered the car by 10mm (max for the front) overall & the steering feels "tighter" & slight improvement on a firmer ride. The factory springs are from Eibach while the shocks are Koni. Mine's an '05 MY car. The car looks more aggressive now with the lower stance :)
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  13. Sportscarnut

    Sportscarnut Formula Junior

    Sep 12, 2005
    820
    #13 Sportscarnut, Aug 11, 2007
    My exhaust looks just like the stock setup, two tail pipes. I wonder if four tail pipers would cause considerably more heat build up in that area?

    But it sounds like you're making progress :)

    Thanks for the update and by the way, my compliments on your choice of color for your Murcie :D
     

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