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  1. Track Time Limited due to High CHT

    As you step it up, you will blow past 225F CHT. So be ready. Personally, 225F is no problem. I would suggest 240F as a functional track limit. Which you will also blow past as you get use to the car and hammer it. Because the cooling is so bad stock, the temp will climb very fast that it's...
  2. Track Time Limited due to High CHT

    That looks like a nice kit. However as mentioned in the older posts, I would suggest that you work on sealing as your next step vs. replacing parts. If you go back and spot your data point on the cooling curve I posted, you will see that you are well above (hotter) than my 50% sealing curve...
  3. Track Time Limited due to High CHT

    Yup, can be frustrating. It's not hard for the OEMs to do, but they have to sacrifice a few bucks to do it. This OEM ... seems unwilling. And thanks for the kind words 👍.
  4. Track Time Limited due to High CHT

    Thanks for reaching out to the engineers and posting info, JS23. Appreciate that. I have been severely distracted in regards to my track efforts and have yet to prove out my "final" cooling configuration. Definitely have learned a lot from the Forum and the modelling/testing I have done...
  5. Track Time Limited due to High CHT

    Talk about late in the game. Sorry to just respond, Ewheels. Lost track of this thread, as I have been distracted and haven't had a chance to prove out my final cooling mod on the track. On your question, the fan shroud resistance is not a big player. It increased flow through the radiator...
  6. Track Time Limited due to High CHT

    Thanks for the videos. I checked my log data and the fuel/throttle pull back occurs in the 6800-6900 range. I checked my tune file and it says max rpm limit in 6th is 7000 but not sure if this limit is modified by something. What rear tire diameter are your running? Per my calcs...
  7. Track Time Limited due to High CHT

    Yes, normal 6th gear the best I can tell. Others on the Forum have mentioned the same issue. And yes, 7th has limit waiting. I believe it’s the same limit as 6th, but I need to look it up. I have done 6400 in 7th to date with 305/30/19 tire. So still margin there. Once again, all my data...
  8. Track Time Limited due to High CHT

    Looks like good progress, GTP. Congrats. Better than the 240 numbers you were running before. Any idea on your oil temps? Hard to know the max/peak CHT unless you look at the right time or log the data. I log the data every session and review afterwards. And yes, typically for me, the max...
  9. Track Time Limited due to High CHT

    Great results @tosha. Congrats. I bet those sprayers are the ticket with the SC heat exchanger adding all kinds of heat.
  10. Track Time Limited due to High CHT

    Nice work@Tosha and thanks for sharing. For my panels, I stopped at the cardboard part. Just wrapped it with 3M HD duct tape and called it good enough. Couldn't manage all the aluminum cutting of 15-20 different pieces to fill all the gaps. So far, the wrapped panels are holding fine. Been...
  11. Track Time Limited due to High CHT

    Just curious how much you opened your grill relative to stock. I'm at +57% in area from OEM. Still trying to find time to install. Maybe next week. I believe GTP is in the range of +90-100% based on the areas he mentioned.
  12. Track Time Limited due to High CHT

    Oh boy 🙂 ... it's never ending. I'm with ya. My only advice is to just picture yourself as an air molecule and you will want to seal the entire cavity between the grill holes and the back surface/plane ... seal up every hole/opening/slit. etc ... all around the perimeter of the...
  13. Track Time Limited due to High CHT

    Just as a fyi ... I posted the same question on TrackMustangsOnline back in Sept 2021 ... just looking for help to understand what's going on. Received some good info and experience from Flyhalf, Bob, and others. But I think maybe the single most helpful post was #2 on this thread. Do you...
  14. Track Time Limited due to High CHT

    We all come at this a little differently. We have different perspectives, different concerns, different priorities, different goals, and a different risk tolerance ... but it's all good guys. So no worries. I think we all do have 1 goal in mind and that is to enjoy the car and the fruits of...
  15. Track Time Limited due to High CHT

    Regarding ..."Your goals never cool the car sufficiently. 235* is still probably 40* too hot." To add something to EFI's point (which is not necessary by the way because he is 100% correct in my opinion) but maybe to put an exclamation point I will add this ... a 195F CHT goal is totally...
  16. Track Time Limited due to High CHT

    A lot activity today. Let me add some mostly worthless info into the mix. I can't drive, so let me do some calculations 😂. @GTP, as promised ... I ran the calc's on the benefit of removing the stock GT water to oil cooler. Glad you pushed me to do it. It's an interesting study. See...
  17. Track Time Limited due to High CHT

    Very valid point, Scoots. Thanks. Didn't think of that. There is a risk there for sure. Reminds me of a friend in his C7Z did a little grass mowing at 70 mph. Punched a hole in the aux cooler in the front. Just have to drive slow and avoid off roading 😬🤔 🙄
  18. Track Time Limited due to High CHT

    Now that's a serious grille mod ... some heavy duty whittling. I did mine with a drill and dremel tool. Took a lot longer than 2 hrs. Change the units for me. Very tedious, especially when you are close to a "perfectionist"☹. My curse. You said you were serious and wanted a homer at the...
  19. Track Time Limited due to High CHT

    Danger depends on who you ask. Everyone has an opinion. My target is 235F or below. But I have run 250F for short periods. The ECU pull back limit for CHT appears to be 257F for my stock tune (244+13). But the calculated oil temps pull the raines back 1st, which is around the CHT 240-242F...
  20. Track Time Limited due to High CHT

    :) (dual purpose w/ no extra coolers). I agree that does sound a bit "impossible" on the surface ... but I guess we'll see in Aug. I will plot the data point on my graph and send it out, so all can tell me I should learn how to "calculate" 😂. Wrap+fluid helps the diff amazingly. I was...


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