[Martin_hbg]

Originally Posted by PeterM1

Does this work? Send me as many data points as you have and I'll keep updating it. As jbass mentioned lap times are useful as an indication of how hard the car is driven.

Full Coarse Sebring: 2.44's in the morning sessions while I can still drive it reasonably hard without overheating.

[UltraRacer13]

Originally Posted by PeterM1

Does this work? Send me as many data points as you have and I'll keep updating it. As jbass mentioned lap times are useful as an indication of how hard the car is driven.

I was running stock coolant. I am afraid to use mocool. Best lap 1:32- not very good- really bad tires.

[mid-corner fun]

updated

[mid-corner fun]

Originally Posted by jbass524

I am going to have a conversation with Andrew at AR about the relation between radiator, transmission cooling and oil coolers. He has a new radiator coming out and like Turkey. Mentioned this may not be the culprit. Harold at HP has data that says it is though.

Let us know how it goes. I had a chat w/Harold last year and he was confident at the time that his new radiator alone was sufficient to cool down MT cars.

[mid-corner fun]

Originally Posted by UltraRacer13

I was running stock coolant. I am afraid to use mocool. Best lap 1:32- not very good- really bad tires.

May I ask why? As long as you drain before winter (if it gets cold wherever you are) there's really no downside for using Mocool.

[jbass524]

Originally Posted by PeterM1

May I ask why? As long as you drain before winter (if it gets cold wherever you are) there's really no downside for using Mocool.

+1000

[UltraRacer13]

Originally Posted by PeterM1

May I ask why? As long as you drain before winter (if it gets cold wherever you are) there's really no downside for using Mocool.

I have read on quite a few other forums about how it forms a sludge and begins to block the flow. I am mobile this morning but I will post some links

[Turkeybaster115]

Originally Posted by UltraRacer13

I have read on quite a few other forums about how it forms a sludge and begins to block the flow. I am mobile this morning but I will post some links

Just lower your concentration of coolant then. There is still a difference between 50/50, and 30/70. Also 30/70 is sufficient for winter as most coolants at that concentration don't begin to ice up until the temp falls below -26F.

[Martin_hbg]

Originally Posted by PeterM1

updated

I should have mentioned I run stock coolant mix, stock engine and a lot of suspension upgrades.

[mid-corner fun]

Originally Posted by Martin_hbg

I should have mentioned I run stock coolant mix, stock engine and a lot of suspension upgrades.

thanks, chart updated. I'm leaving out engine modifications from the chart on purpose, even though boost is pertinent to this discussion I really don't want to turn this into a tune vs. no-tune (or even worse, which tune...) discussion. And as long as we're running on separate tracks we can avoid the best lap comparisons too

[UltraRacer13]

Originally Posted by PeterM1

thanks, chart updated. I'm leaving out engine modifications from the chart on purpose, even though boost is pertinent to this discussion I really don't want to turn this into a tune vs. no-tune (or even worse, which tune...) discussion. And as long as we're running on separate tracks we can avoid the best lap comparisons too

I think my number vs Peter's are interesting. Assuming we are running the car about the same, both using STETT stg II. I was in considerably warmer ambient temps, yet we had the same max temp (250). I can only assume the difference is that he is AT, which accounted for adding 10-20 degrees more of oil temp.

[mid-corner fun]

Originally Posted by UltraRacer13

I think my number vs Peter's are interesting. Assuming we are running the car about the same, both using STETT stg II. I was in considerably warmer ambient temps, yet we had the same max temp (250). I can only assume the difference is that he is MT, which accounted for adding 10-20 degrees more of oil temp.

you mean AT...yes, that could account for the difference. It can also mean bad news for me in 80-90F weather.

I'm trying to sign up for a 5/22 event, if it works I'll log water temps for the first time too although it's a new track to me so I have no comparison data (for oil temps).

[Turkeybaster115]

You guys should also consider writing if the run was with the heater on or not. That makes quite a difference. The heating core is located inside the dashboard. Once you turn it on, coolant flows through it, and A fan blows it. someone correct me if I'm wrong.

[Martin_hbg]

Originally Posted by Turkeybaster115

You guys should also consider writing if the run was with the heater on or not. That makes quite a difference. The heating core is located inside the dashboard. Once you turn it on, coolant flows through it, and A fan blows it. someone correct me if I'm wrong.

I turned off the AC and turned up the heater to 84F and it still reached 117C coolant temp after a few laps. Not saying it did not help at all, just that it did not help enough to keep it below 117C for me.

[UltraRacer13]

Originally Posted by Turkeybaster115

You guys should also consider writing if the run was with the heater on or not. That makes quite a difference. The heating core is located inside the dashboard. Once you turn it on, coolant flows through it, and A fan blows it. someone correct me if I'm wrong.

no doubt the heater helps. I had no need to run mine. (although I ran it Sunday when ambients were 47 degrees and raining!)

[Turkeybaster115]

Originally Posted by Martin_hbg

I turned off the AC and turned up the heater to 84F and it still reached 117C coolant temp after a few laps. Not saying it did not help at all, just that it did not help enough to keep it below 117C for me.

That may have more to do with the fact that you are running 50/50 OEM coolant, with no coolant additives. Those running distilled water + coolant additives had a dramatically different water temp range.

[mid-corner fun]

heater info added

[Turkeybaster115]

Originally Posted by PeterM1

heater info added

dude, you rock. I'll be adding my data after the 22nd, when I do my first all day track event.

[IN54NITY]

my $0.02. I think you need to add average lap speed, not just best lap time. I've also recently bought an AiM Evo4 datalogger (watch for a review of that on this forum), and I'll be logging water temperature as well. One other thing I'll add is I've been using the stock air filter this winter (keeping dual cones clean for summer/track), and I'm surprised how high I've seen DD oil temperatures get. Again, I think it's a plastic blanket affect. I'm going to take the plastic head cover off too.

[mid-corner fun]

Did you mean median? Average lap speed can be greatly affected by traffic. In LRP we had 10+ cars stuck behind a GT3 for 3-4 laps until he was blackflagged for ignoring the point-by flags. I'm not sure if everyone is willing to shift through their datalogs to clean the data up, I barely have time to overlay the datalog on top of my videos :-) We typically quote best lap times as that info is readily available by most (all?) datalog solutions.

Let us know what difference you see with the plastic cover off, the more metrics the better!

[UltraRacer13]

Originally Posted by aleckzandr

my $0.02. I think you need to add average lap speed, not just best lap time. I've also recently bought an AiM Evo4 datalogger (watch for a review of that on this forum), and I'll be logging water temperature as well. One other thing I'll add is I've been using the stock air filter this winter (keeping dual cones clean for summer/track), and I'm surprised how high I've seen DD oil temperatures get. Again, I think it's a plastic blanket affect. I'm going to take the plastic head cover off too.

Interesting. I ran the stock airbox at the track, thought it would be cooler that the DCI. I have no proof either way, just conjecture.

[jbass524]

Originally Posted by PeterM1

Did you mean median? Average lap speed can be greatly affected by traffic. In LRP we had 10+ cars stuck behind a GT3 for 3-4 laps until he was blackflagged for ignoring the point-by flags. I'm not sure if everyone is willing to shift through their datalogs to clean the data up, I barely have time to overlay the datalog on top of my videos :-) We typically quote best lap times as that info is readily available by most (all?) datalog solutions.

Let us know what difference you see with the plastic cover off, the more metrics the better!

Agreed but fastest laps are vital, as well as overall workload, as they help us understand the how hard you are driving. They should be compared to what a great driver does in the same car at the track so we can understand how hard you are pushing it. Seat of the pants and passing a GT3 RS doesn't do it.

I know it's lame and difficult to do but I don't know how else to measure the workload. Suggestions?

Without knowing if you're a similar or better/faster driver it's hard to assess the need for a stage 1 or 2 or if you even need to change your coolant to water. What works for you doesn't necessarily work for me. Many have been lured into a solution that wasn't really a solution for them because of this.

We have AT/MT, which is very important, and ambient temps but true workload isn't measured. Ideas?