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P0217 "engine coolant over temperature" P0430 "catalyst system efficiency below threshold on bank 2" And a cool bit of video where a guy is tracking his late 60s classic Mustang. So the P0217 does not seem to match the temperatures he recited above? What coolant temp trips that code? 250?

Toward the end, he says: 200 oil temp. (that's nothing) 190 differential 220 CHT (again, that's nothing for on track) Does Whipple power fall off at such low temperatures?

Cheap Kenda tires - wow, you can hear them screeching and howling on every turn. Heat - The Mustang did not go into limp mode or anything, but in the commentary afterward, he said the power was down, as he was not able to accelerate much more than the red Mustang in the video and it did not...

First you have to remove the three pins (not sure why they did not take these out at the factory or why they are installed in the first place). This is a GT 500, but it is the same, and shows in detail how to to remove the pins.

LMR installed a Whipple on their Dark Horse with a manual Tremec and took it to Motorsports Park Hastings in Hastings, Nebraska. I don't know what the temperatures are, but everybody is in shorts and T shirts (EDIT - 71 degrees). It is also not a serious shakedown run. It looks like they are...

Mounted today. Drove home at 47 degrees. They were fine, even when pushed a little. Of course, this was 47 degrees. We'll see what happens when it is colder. Hopefully no cracking or sliding to my death. Since I ran PS4S on my Audi for years including wintertime, without having any...

I read online, however, that combustion temperature is "hundreds" of degrees lower. I do not know how they test that. However, ethanol vaporizes at 172 degrees, way lower than gasoline, and vaporizing removes heat (this is how sweet cools off our bodies). I am pretty sure that ethanol is...

Actual race cars (for realsies) on slicks seeing CHT of 275-280. :shock: The 275 maximum is with a new, dual pass radiator. The CHT with old radiator hit 280, and they had to back off. https://trackmustangsonline.com/threads/darkhorse-r-mustang-challenge-car-58.20657/page-16#post-329759

Low 200s? Road race guys in Mustangs are seeing 270, 280 oil . . .

One guy on a Corvette forum anecdotally reporting that he noticed a 10-15° increase in oil temperatures on the road course after switching back to 93 octane. https://www.corvetteforum.com/forums/c6-tech-performance/3107335-cooling-effect-of-e85-on-the-road-course.html . . . but the he later...

I am not an engineer, but I am having trouble trying to figure out whether there is any relationship to exhaust system temperatures and the temperature of oil or coolant.

Yes, it would be more noticeable there, but I was wondering whether it would be a better fuel for HPDE days, especially in the summer. A typical day is 25-30 minute sessions 5 times for the day. Mustang drivers often complain about overheating problems once they become better drivers. I am...

25 horsepower going from E30 (434) to E85 (458). Note that running E30 on the stock tune already picks up power. This car does not have headers. They also did not raise the rpm limit.

Can you feel the difference that installing headers made? It will be about that much again. Are you willing to run E85? Then a tune will pick up quite a bit more. Did you get rid of the 2.25" restriction in the exhaust? The stock exhaust reduces to 2.25" right before the resonator (you can...

Then it looks like the answer is no, confirmed by Jonyxz actually using them in real life. I had thought maybe they would be too tall.

Alright, alright, let's not start that one in this thread. It went pages in the other. :crackup:

Would they throw off the factory ECU, though?

By any chance, have you had a chance to watch this guy's testing of summer and winter tires on cold pavement at 24 and 26 degrees Fahrenheit (-3.3 and -4.4, for you Canadians)? Unfortunately, he did not test all seasons, but the results of what he did test were ironic...

That's not the point of the video, but, well, continue to ignore it and miss the point of this thread. 🤔 The information is all there for you if you ever change your mind. :idea:

https://www.mustang7g.com/forums/threads/michelin-ps4s-cracked-and-ruined.172848/ Any cracking? Could you chime in on this other thread?