Suggestions for under bonnet cooling

Discussion in 'Mechanical - Engine, Gearbox, Exhaust etc' started by Mr Spoon, Aug 29, 2021.

  1. So the obvious answers are:

    Fit vents
    Fit ducts

    So, with that in mind, what have you done to lower your temps under the bonnet? Whilst I do not have a overheating issue, the engine bay has some extreme heat going on.

    Adding cooling should decrease intake temps, but apart from that and the feel better factor, reduce heat wear on components too.

    Any opinions?
     
  2. My intake is fitted down behind the wheel arch, and I have been through deep puddles/ heavy rain, with no problems, also the rubber sealer is removed from the scuttle panel, which I checked with a tissue, and yes it does blow away from the scuttle panel. I am running 360bhp, no overheating whatsoever on track.
     
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  3. I'm going to be wrapping my downpipe with heat wrap in an attempt to keep Bay temps down.

    I have toyed with the idea of fitting bonnet raisers which may help to let a little more air in/out at the rear which is the hot zone.

    You could also wrap some components with a form of heat shielding if that is a concern, I'm going to wrap the fuel line as a precaution on mine.
     
    Mr Spoon likes this.
  4. Well that's good to know. Do you not think the engine bay just feels significantly hotter than other cars you've possibly owned?
     
  5. I've never had a high powered turbo before so it's a difficult question to answer.

    It's definitely hot under there though, crazy after a stint on track!
     
  6. Overheating in my Meglio was never cured, until under my ownership, I discovered the fan was blowing the wrong way around!. Vents in bonnet/grills removed, never cured it, now I know why!!. I know of a couple of others with the same fault, so worth a check. The r26 get hot, but nothing is heat wrapped, and temperatures never rise above the second line on the gauge. I did check with a scan gauge, and after heavy track use, all was well. Heat wrap will help, I don't use it, as I have not got the need.
     
  7. You could remove the rubber bonnet seal across the back of the engine bay. Will allow air to pass through and exit more easily?
     
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