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      06-20-2017, 07:17 AM   #45
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Quote:
Originally Posted by SYT_Shadow View Post
Update:

We are at 87F today at watkins glen, running the car double duty as usual with oem gts software.

Zero issues. It shifts exactly the same as when it is cold. We're running it an entire hour at a time

This is the hottest I can run, it's too hot!
I was also at the Glen this past weekend (black E90 M3) and had issues with both high coolant temp warnings and a laggy DCT. Great to hear the do88 kit is paying off, I'll definitely be looking into it in the future.
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      06-20-2017, 07:42 AM   #46
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Quote:
Originally Posted by eternallx View Post
Did you change the Dct fluid during the cooler swap or you just replaced what you lost?
I didn't replace the fluid yet, that'll be when I change the seal. Just replaced what was lost.

Very little is actually lost. I just filled up the new radiator with fresh fluid and connected it
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      06-20-2017, 07:48 AM   #47
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Quote:
Originally Posted by jfo122 View Post
I was also at the Glen this past weekend (black E90 M3) and had issues with both high coolant temp warnings and a laggy DCT. Great to hear the do88 kit is paying off, I'll definitely be looking into it in the future.
No way! That's awesome.

I'm the instructor that came up to you while you were gridding and congratulated you on the PFC BBK.

My brother and I are #199 or #200. That weekend we were in the white E90, #199

We were very impressed with the cooling kit. DCT allowed us to redline every single gear nonstop as you can shift in the middle of a turn. Besides, we are running OEM GTS software which is extra aggressive and creates more heat.
Usually we consume 1/4 of a tank per session, but with the DCT we were at 1/3 given the extra abilities the high rpm running provides.
I consider it is impossible to drive at higher rpms than what we did this track day or to beat on the DCT any more than we did.

No warnings or issues of any sort running in red and black groups back to back for 1h at a time. The dash temp needle was at 3/4 of the way

If you ever run into us again let us know. We run around with a laptop and coding cable and would have installed the GTS software on your car had we known who you are.


By the way, don't feel too bad about overheating. My student was running a 6MT GT3 997 in blue group and managed to get high oil temp warnings and had to back off. My 6MT E92 M3 with all stock radiators runs 10 seconds faster than the GT3 with the same tires and does not overheat. The DCT probably would, but we're comparing 6MT vs 6MT.

So yet another icon falls. I've heard an incredible amount of bullsh1t on these forums of M3 driving GT3 fanboys who claim they need no mods for the track. Back in the real world, the GT3s have modded suspension, control arms, flywheels, clutches, diffs, cooling, brake rotors...

Last edited by SYT_Shadow; 06-20-2017 at 08:06 AM..
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      06-21-2017, 07:57 AM   #48
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Quote:
Originally Posted by SYT_Shadow View Post
No way! That's awesome.

I'm the instructor that came up to you while you were gridding and congratulated you on the PFC BBK.

My brother and I are #199 or #200. That weekend we were in the white E90, #199

We were very impressed with the cooling kit. DCT allowed us to redline every single gear nonstop as you can shift in the middle of a turn. Besides, we are running OEM GTS software which is extra aggressive and creates more heat.
Usually we consume 1/4 of a tank per session, but with the DCT we were at 1/3 given the extra abilities the high rpm running provides.
I consider it is impossible to drive at higher rpms than what we did this track day or to beat on the DCT any more than we did.

No warnings or issues of any sort running in red and black groups back to back for 1h at a time. The dash temp needle was at 3/4 of the way

If you ever run into us again let us know. We run around with a laptop and coding cable and would have installed the GTS software on your car had we known who you are.


By the way, don't feel too bad about overheating. My student was running a 6MT GT3 997 in blue group and managed to get high oil temp warnings and had to back off. My 6MT E92 M3 with all stock radiators runs 10 seconds faster than the GT3 with the same tires and does not overheat. The DCT probably would, but we're comparing 6MT vs 6MT.

So yet another icon falls. I've heard an incredible amount of bullsh1t on these forums of M3 driving GT3 fanboys who claim they need no mods for the track. Back in the real world, the GT3s have modded suspension, control arms, flywheels, clutches, diffs, cooling, brake rotors...
I'm already running the GTS DCT tune, but thanks for the offer! I usually run at Summit and VIR, but will definitely be heading back to the Glen next year. I'll be sure to keep an eye out for you going forward.
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      08-20-2017, 03:47 PM   #49
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Quote:
Originally Posted by SYT_Shadow View Post
It just blew my mind... here I am installing a radiator that is twice the size on the DCT car... and the 6MT has 1/3 or half of its little radiator covered!

I'm going to remove the bumper and tear that piece of metal right off.
Do you have any pictures of the offending piece of metal? I'll be tracking my 6MT when I get one so I'll be looking to improve the cooling of all systems at some point.
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      08-21-2017, 07:01 AM   #50
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Quote:
Originally Posted by Pistonheed View Post
Do you have any pictures of the offending piece of metal? I'll be tracking my 6MT when I get one so I'll be looking to improve the cooling of all systems at some point.
No pics, but if you bend down and look at the radiator in the passenger side of the car you'll see it clearly
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      08-21-2017, 11:02 PM   #51
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Quote:
Originally Posted by SYT_Shadow View Post
It just blew my mind... here I am installing a radiator that is twice the size on the DCT car... and the 6MT has 1/3 or half of its little radiator covered!

I'm going to remove the bumper and tear that piece of metal right off.
Quote:
Originally Posted by SYT_Shadow View Post
No pics, but if you bend down and look at the radiator in the passenger side of the car you'll see it clearly
Exactly what I was wondering.

Appreciate all data you've been reporting back

DIY's in all your threads you've contributed

Nice to see some activity on forum side again
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      09-29-2017, 02:41 PM   #52
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Update after 2017 season:

So, we've (my brother and I) put 20 double track days (=40) on the car this season. The car runs for around an hour at a time as our run groups are consecutive every time.

Regardless of the temperature outside it was impossible to overheat the oil/water or DCT. Trust me, we tried

The DCT with OEM GTS software works flawlessly every shift. You can redline 6x a lap and still have zero issues.

This year we only ran sticky street tires (NT01, R888R, RE71R). Next year we'll run some R1's so I'll update again.

For the record, we are both PCA instructors and run in red/black, the two fastest PCA groups.
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      09-29-2017, 06:16 PM   #53
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We have the same build man lol. I did csf
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      09-29-2017, 06:37 PM   #54
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Quote:
Originally Posted by 8600RPM View Post
We have the same build man lol. I did csf
You know what they say about great minds
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      09-30-2017, 07:51 AM   #55
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Quote:
Originally Posted by SYT_Shadow View Post
Update after 2017 season:

So, we've (my brother and I) put 20 double track days (=40) on the car this season. The car runs for around an hour at a time as our run groups are consecutive every time.

Regardless of the temperature outside it was impossible to overheat the oil/water or DCT. Trust me, we tried

The DCT with OEM GTS software works flawlessly every shift. You can redline 6x a lap and still have zero issues.

This year we only ran sticky street tires (NT01, R888R, RE71R). Next year we'll run some R1's so I'll update again.

For the record, we are both PCA instructors and run in red/black, the two fastest PCA groups.
Thank you for the review! we have a few sets of the do88 cooling packages here about to go on some of our own cars! glad to hear they are doing a great job! for the price its hard to beat!
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      09-30-2017, 09:14 AM   #56
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Awesome thread. Thank you SYT_Shadow
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      09-30-2017, 11:50 AM   #57
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Quote:
Originally Posted by SYT_Shadow View Post
It just blew my mind... here I am installing a radiator that is twice the size on the DCT car... and the 6MT has 1/3 or half of its little radiator covered!
The temp on the 6mt is a guesstimate without a
gauge.
Has anyone actually checked the temp with a larger cooler installed or with the cover plate removed?
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      01-02-2018, 01:17 PM   #58
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Did the upgraded power steering cooler make a difference? No more boiling/splatter?
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      01-02-2018, 01:38 PM   #59
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Quote:
Originally Posted by magus4286 View Post
Did the upgraded power steering cooler make a difference? No more boiling/splatter?
I installed the BW reservoir on this M3 as well so no issues. I imagine this would work with the stock reservoir but I didn't want to deal with the way inlet and outlet are reversed
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      01-03-2018, 06:57 AM   #60
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DO88 DCT cooler fixed all my shifting issues, definitely a very worthy upgrade.
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      04-14-2018, 08:04 AM   #61
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How does the do88 oil cooler compare to the CSF oil cooler? I already have the CSF oil cooler but my oil temp still nearly got to the 3/4 mark on track. I'll for sure be upgrading to their DCT cooler (do88).
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      04-14-2018, 09:37 AM   #62
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I am also on the CSF kit. curious about the difference.

looks very similar.
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      04-14-2018, 09:40 AM   #63
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Quote:
Originally Posted by Warpig12354 View Post
How does the do88 oil cooler compare to the CSF oil cooler? I already have the CSF oil cooler but my oil temp still nearly got to the 3/4 mark on track. I'll for sure be upgrading to their DCT cooler (do88).
I've only seen the do88 one

It may be comparable. The dct one is not as the do88 one has like 50% more surface area
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      04-14-2018, 10:11 AM   #64
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Here is the CSF kit:
http://www.bimmerworld.com/Cooling/C...r-Package.html
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      04-14-2018, 12:36 PM   #65
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Quote:
Originally Posted by rhyary View Post
It's a nice kit for sure, and from my favorite vendor

The ps, oil and water ones look similar. It's the dct that really is different between both
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      06-21-2018, 01:34 PM   #66
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2018 Update:

The car can run an hour at a time with slicks and 85F temperature

One of the best mods we've done to the car
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