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siverson |
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Advanced Member ![]() ![]() ![]() ![]() Group: Benefactors Posts: 2,448 Joined: 5-May 03 From: San Diego, CA Member No.: 654 Region Association: Southern California ![]() ![]() ![]() |
I spent the weekend at the NASA event at Willow Springs. It was pretty fun, and a very fast track - 125 on front stretch, about 105 or so on the back stretch. Turn 8/9 right at about 90/100 mph. Yowzers. I had never driven on that fast of corners before.
It think it was about 105 degrees out too, and my car started to get too hot in the afternoon sessions. I actually had to stop the 20 minute run sessions early. I was quite surprised by this, as I had previously been concerned that the car is running too cool on the freeways. Hmmm... I'm running a 3.6 with a front mounted Mocal cooler that's 20x6x2 or so. Another 914 there had a 4.0 (from a 3.6) with the factory C2 cooler under the rear trunk AND a front mounted cooler that was 16x6x2 or so. I think my DME programming might still be a little off (too lean) contributing to the heat. I'll have to check it out. Does anyone have any real world experience with the GT engine lids? Do they really make a cooling difference? Anything else to consider besides fuel/timing and engine lid before I start cutting away for a second cooler somewhere? -Steve Attached image(s) ![]() |
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siverson |
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#2
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Advanced Member ![]() ![]() ![]() ![]() Group: Benefactors Posts: 2,448 Joined: 5-May 03 From: San Diego, CA Member No.: 654 Region Association: Southern California ![]() ![]() ![]() |
An update for everyone who was wondering what the result was. Took my car to the dyno a couple weeks ago, and it turns out my Autothority chip was -way- off for the modifications I had, and the car was running dangerously lean and had a strange power curve.
So, that's my best hunch as to why I had such high on track temperatures. Rather than throw more money at the Motronic with a custom chip, I decided to get this... Vrooom! Busy with moving and work right now, but should have it put together in 3-4 weekends... -Steve Attached image(s) ![]() |
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