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  1. 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...
  2. 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...
  3. 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...
  4. 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.
  5. Track Time Limited due to High CHT

    Nice [email protected] 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...
  6. 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.
  7. 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...
  8. 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...
  9. 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...
  10. 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...
  11. 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...
  12. 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 😬🤔 🙄
  13. 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...
  14. 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...
  15. 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...
  16. Track Time Limited due to High CHT

    Thanks GTP👍 . Just a few quick thoughts, its a bit late in the day. If you can get all the temps to behave on the 1st shot, you would be in very select company. Not many or if any have done that on a dual purpose street/track car hammer on the track. But that's a great goal and I hope you...
  17. Track Time Limited due to High CHT

    What CHT, oil, and trans temps did you run at limp mode? There is a big cooling thread that you can navigate to investigate all the options for the auto trans. But if you are looking for a drop-in, these are the only trans coolers I have found (maybe others, not sure). 1. Mishimoto (the one...
  18. Track Time Limited due to High CHT

    948 is a very big HX and seems like a good fit for the oil cooling. But you do have to carry the weight around. Can you get by with something smaller?? Not sure, have to test or at least run some calc's. Note: Neversatisfied has a slightly smaller oil cooler (setrab 650) which should be...
  19. Track Time Limited due to High CHT

    Thanks for the update. It's better than before the mods, so progress made 👍 . Looks like your measured oil temp is close to the calculated. Maybe 5F lower or a bit more. Your CHT data point plots right on the "98% sealed" curve. If you don't find any significant remaining radiator perimeter...
  20. Track Time Limited due to High CHT

    Glad it makes sense and is helpful👍. On the tips for sealing, go to post #96. That should get you started. The only thing I would change is the part A = 50% and part B is 50%. After I sealed the front and instrumented the system, it turned out that the front leaks are bigger than I...
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