Pictures from weekend @ Willow Springs, too hot - questions... |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
Pictures from weekend @ Willow Springs, too hot - questions... |
siverson |
Jul 12 2004, 04:00 PM
Post
#1
|
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) |
siverson |
Jul 13 2004, 01:18 AM
Post
#2
|
Advanced Member Group: Benefactors Posts: 2,448 Joined: 5-May 03 From: San Diego, CA Member No.: 654 Region Association: Southern California |
> What kind of ducting setup does your cooler have?
Pretty simple. Here's a picture. It's sealed pretty well all the way around (on the exhaust/trunk side), but inlet isn't forced in (can bleed around the edges). > I think most guys recommend AN-16 lines for 3.6 applications that see track use. Not sure about that. I thought -16 would be overkill, but now in retrospect I wish I had done that just so I wouldn' t have to consider it. > but it would be a good idea to run synthetic oil I am running Mobil 1 10/30. Maybe something heavier would work better... ? I am actually beginning to suspect it has more to do with DME programming than anything. I'll find out this weekend, it's dyno day for PCA San Diego. One crucial peice of information I left out is that the engine start to occasionally ping when hot, and I think that just makes the problem worse... > and keep an eye on the gauge in case it ever goes beyond 250... That's the problem! Where I am supposed to look down on the big track at Willow Springs?!?! As soon as I had a chance to look at the gauge and it was getting too high, I knew I had to pull off then because it would be another 1.5 minutes until I had a chance to look again (ok, ok, 2.5 minutes later (IMG:style_emoticons/default/smile.gif) )! -Steve |
Lo-Fi Version | Time is now: 10th June 2024 - 11:50 AM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |