A conversation with HPA on engine temps


Hi guys,

I phoned HPA yesterday, to order myself one of those Haldex controllers. 🙂

While I had Keir on the phone, I asked him if he had any thoughts on my 3.2 overheating on low-speed-hard-on-the-brakes racetracks. (such as Mécaglisse, here in Québec)

He referred to one of his clients, with a 500whp+ TT that had similar issues on race tracks. This client is known on the web as: ZillaMoto. I’m far lower at 360whp, but still these tracks are hard on the 3.2 engine. ZillaMoto had to install a huge scoop on the hood… Definitively a no-no for me. Too big, too Japanese. You get it.

zillamoto audi tt

zillamoto audi tt

Engine Compartment Temps

Searching the web, I came across a very interesting article that shows a way to get 20% decrease on ambient engine compartment air temperature… at no cost! Simple but effective: The OEM engine compartment trim (see picture below) seals the hood and firewall completely, keeping fresh air from coming in. When removed, it allows venting into the engine compartment at the low pressure area at the base of the Windshield. Steve from Modshack sells a “low trim” piece to replace the original. I will simply remove mine on track days.

Remove the trim and get your ambient engine air decreased by 20%

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About andre-martin hobbs

I started this blog just recently because I have so much fun modifying my MK1 TT... that I need to let the world know! And it's also a good reference when looking back at my mods. Ciao for now! Andre
This entry was posted in My Audi TT RS Project and tagged , . Bookmark the permalink.

4 Responses to A conversation with HPA on engine temps

  1. SafariTT says:

    This TT is really really ugly. Can’t comment more.

  2. andre hobbs says:

    Right, but 650 hp at the engine… 🙂

  3. Travis says:

    Why not keep the trim off at all times?

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