06-03-2020, 02:29 AM | #1 |
New Member
11
Rep 15
Posts |
F90 Thermostat
Trying to get feedback from anyone is using a racing thermostat for the F90 was told by Troy and George that its helping our cars stay alot cooler any feedback would be great.
|
06-19-2020, 09:26 AM | #6 | |
Lieutenant
461
Rep 524
Posts |
Quote:
https://www.ecstuning.com/b-hamburg-...37586885-90c~/ |
|
Appreciate
1
gtenedio348.00 |
06-19-2020, 03:39 PM | #8 | |
Captain
366
Rep 804
Posts |
Quote:
You guys are aware that the car has an electronic thermostat as well as an electronic water pump flow controller. What i'm trying to say is that this "thermostat" snake oil some people sell is pointless. https://f90.bimmerpost.com/forums/sh...45&postcount=7 |
|
Appreciate
0
|
06-19-2020, 03:44 PM | #9 | ||
Lieutenant
461
Rep 524
Posts |
Quote:
May just install the wmi system and see how that does with different nozzle sizes and meth mixtures before therm install. |
||
Appreciate
0
|
06-19-2020, 04:32 PM | #10 | |
Captain
366
Rep 804
Posts |
Quote:
|
|
Appreciate
0
|
06-19-2020, 04:48 PM | #11 | ||
Lieutenant
461
Rep 524
Posts |
Quote:
|
||
Appreciate
1
BMWDriverX365.50 |
06-19-2020, 05:02 PM | #12 |
Captain
366
Rep 804
Posts |
|
Appreciate
0
|
06-19-2020, 05:16 PM | #13 |
Captain
366
Rep 804
Posts |
Yeah it seems that BMW probably tops off the coolant every oil change to hide that the car is boiling the coolant off, I was under the min line by a good 6-8oz. My engine has been off for 4 hours and was still pretty hot but not boiling, when i opened the cap some steam coolant still came out. You don't pay attention to something like this and a few hard pulls and bye bye motor.
Last edited by BMWDriverX; 06-19-2020 at 06:58 PM.. |
Appreciate
0
|
06-19-2020, 06:52 PM | #14 | |
Perennial PFC
336
Rep 1,274
Posts |
Quote:
It's hard to believe a car as technically advanced as the M5 has no driver warning when the engine coolant level drops below the minimum level. We have an oil temp gauge, but only, I assume, a warning light when the engine coolant becomes too hot? Is there a warning light for engine water temp? |
|
Appreciate
0
|
06-22-2020, 12:22 PM | #15 |
New Member
11
Rep 15
Posts |
Mo from DME spoke to George and told us to insatll the 90C because it is helping keep these cars 15C cooler so I will be installing mine today will let you guys know how its goes.
|
Appreciate
3
|
06-22-2020, 02:40 PM | #17 |
Captain
366
Rep 804
Posts |
|
Appreciate
0
|
06-22-2020, 05:08 PM | #18 | |
Perennial PFC
336
Rep 1,274
Posts |
Quote:
|
|
Appreciate
0
|
06-23-2020, 09:08 AM | #19 | ||
Lieutenant Colonel
1414
Rep 1,564
Posts |
Quote:
Quote:
Normal operating temps with stock thermostat were 221-225F, hitting peaks of 230ish in stop and go traffic in AZ summer when 116+ out. I use the torque pro app and have dedicated Android phone mounted just monitoring coolant temps, I still have PTSD from when I was a kid and trying to keep my E21 from overheating in AZ summers. Switched out to the 90c thermostat, temps immediately dropped to constant 208-210, in sport mode and when a certain throttle threshold is met, the computer takes over drops temps to constant 195-199F. Doesn't matter if it is 70 or 110F out. So changing the thermostat will drop the temps but not to claimed 90c unless the computer has activated the heating element in the thermostat and this is only done when certain criteria is met. Would be interesting if this is something tuners can tweak in the DME. Even in F90, the computer does not have complete control over thermostat, only partial control as it is still based off a wax motor. The electrical connection to it is for the heating element, when the computer wants it can activate this heating element to open it thermostat more during period of higher throttle/rpm/boost or sport/M modes. I did notice a slight performance difference with the thermostat, I would think this would be even more pronounced on the much higher output of the S63TU3 and add extra protection again pre-detention at the higher boost pressures. I checked out the newtis on this for the F90, looks to be easier to do then on E70 thanks to different water pump design making it much easier to access thermostat bolts, guessing around 6 to 8 hours for average DIY'er taking their time, I would not rush anything on a 120k+ ride. Filling procedure is the same as it was for the E70, you HAVE to have the vacuum filling unit and must activate the vent procedure after or looking at a sweet 30-50K repair bill for new engine. I used FCPeuros vacuum kit, worked excellent and was amazed how easy it was, pulled in exactly the amount of coolant needed and after vent procedure only had to add less then a 1/4 cup of coolant. Vent procedure can take 15-20min, you have to have low beams and hazards on during, have a proper 15+ amp charger hooked up during procedure. Last edited by Sophisticated Redneck; 06-23-2020 at 01:35 PM.. |
||
06-23-2020, 04:25 PM | #20 |
Major
348
Rep 1,237
Posts |
as mentioned, this is a 6-7 hr job
__________________
.
|
Appreciate
0
|
06-23-2020, 04:51 PM | #21 | |
Captain
366
Rep 804
Posts |
Quote:
|
|
Appreciate
0
|
06-23-2020, 07:58 PM | #22 | |
Lieutenant Colonel
1414
Rep 1,564
Posts |
Quote:
A good indicator of air trapped in the system on the original S63 & N63 was the horrible racket the turbo coolant pump would make. The S63TU3 has an updated pump design so it may not do this anymore but something to be on the lookout for of just in case you ever hear strange screeching/rattling noises after turning off the engine as the pump runs for quite awhile when the engine is off. |
|
Appreciate
1
BMWDriverX365.50 |
Post Reply |
Bookmarks |
|
|