[CanadianM2]

Throughout the following days my beloved 2016 M2 manual 30k mile is going on the dyno stock & full bolt on BM3 tune

CTS Catless downpipe
VRSF Charge pipe
CTS Intercooler
MST/CTS Turbo inlet (have both haven’t
decided which one yet)
GFB dv+
AFE drop in
AFE oem intake duct

Using Esso 91 e10 and tuning with bm3 91acn to provide safest results with my provinces fuel quality.

Will be updating this post soon, just excited and wanted a place to share if anyone was interested 🙂

[SpaceJ]

Following 👍

[CanadianM2]

Unfortunately the “stock” run is going to be with all of the parts installed on the vehicle, so the baseline may be slightly inflated from the true stock numbers

[CanadianM2]

The results are in, with a datalog for the final pull on the 91acn file.. pretty in line with what I expected out of this car, and seems fairly typical for most stage 2 M2’s on lower quality fuel.

I may try the regular 91 file and see how it does but it’s the first snowfall of the year today of course so that will have to wait for now. I babied it home and only gave it one wot in 2nd gear around 3500rpm and it immediately spun and wheel hopped so I got out of it.. the catless downpipe is surprisingly tame and quiet with the stock non M perf exhaust, I love the way it sounds!

https://bootmod3.net/log?id=6542797a9c66d258c903abe0

[ThreeStripes]

Great datapoint. Thanks for sharing

[AmuroRay]

Nice. Is this with the turbo inlet?
What was really outside temp?

[CanadianM2]

Originally Posted by AmuroRay

Nice. Is this with the turbo inlet?
What was really outside temp?

Yeah we used the CTS inlet as it looked larger than the MST. It was around 1 degree Celsius at the time of dyno as well

[mike@x-ph.com]

thank you for sharing

[AmuroRay]

Originally Posted by CanadianM2

Yeah we used the CTS inlet as it looked larger than the MST. It was around 1 degree Celsius at the time of dyno as well

MST v2 or V1?

And the intercooler's performance is...not good. It's almost 50F higher (on a run up to 6000RPM) than ambient.

[ThreeStripes]

Originally Posted by AmuroRay

MST v2 or V1?

And the intercooler's performance is...not good. It's almost 50F higher (on a run up to 6000RPM) than ambient.

1* celsius… outside. That shop looks nice enough that air temp inside may not have been 1*.

[AmuroRay]

Originally Posted by ThreeStripes

1* celsius… outside. That shop looks nice enough that air temp inside may not have been 1*.

That’s 33F, the logs show 73-80F, which is almost 50 over ambient. So hopefully it was warmer, but the door was open so who knows.

[Kiddvegas]

Originally Posted by AmuroRay

MST v2 or V1?

And the intercooler's performance is...not good. It's almost 50F higher (on a run up to 6000RPM) than ambient.

I have this exact intercooler sitting in a box at home waiting to be installed. Do you think I should sell it and cop something else ?

[AmuroRay]

Originally Posted by Kiddvegas

I have this exact intercooler sitting in a box at home waiting to be installed. Do you think I should sell it and cop something else ?

Absolutely.

[CanadianM2]

It was MST V2 for whoever asked!

Update on the car, seems to me my HPFP can’t keep up with the S2 91acn file, so a Dorch S1 upgrade is possibly in order.

https://bootmod3.net/log?id=65440fc5fd77326f26c902be

Also about the IC, I was just looking at a log out on the street and 3rd 3000rpm wot until the 6500rpm in 4th gear it raised from 46-54 Fahrenheit. Ambient temp was approx 40 degrees

[VGSON]

Originally Posted by AmuroRay

Absolutely.

you have a 235 and we m2 guys have to be careful going with ones that are labeled "race"....They dont fit without modifying the brace in front of the radiator. Personally, I think a street intercooler that stays around 10deg above ambient is sufficient for most as most of us aren't hitting the race track for 30min sessions.

Also to OP...Yes a hpfp is a good idea. Our cars should have came with a Dorche stage 1 equivalent.

[CanadianM2]

That’s part of the reason I wanted a smaller upgraded intercooler, never had to cut a thing and had zero difficulty installing👍

And I agree about the IC. This car never sees more than one or two wot pull on freeway a every other drive, and spirited back road driving it stayed cool from my observations.
the cts logs are a huge improvement over my stock temps.

I will change my plugs, the previous owner claimed they were two year old plugs but not many km driven on them. What does everyone recommend for plugs?
My friend says to use the NGK 97506 but spark plugs are often highly debated

I think I will be ordering a dorch stage 1.5 as they discontinued the stage 1, BM3 doesn’t have an option for the 1.5 so I will have to ask them about that.

I am tempted to also get a flex fuel sensor to be able to have a little more power on demand with simply adding ethanol to the tank.
You would think the M2 would have a better hpfp from factory

[ThreeStripes]

Stock plugs are the move.

[AmuroRay]

Originally Posted by VGSON

you have a 235 and we m2 guys have to be careful going with ones that are labeled "race"....They dont fit without modifying the brace in front of the radiator. Personally, I think a street intercooler that stays around 10deg above ambient is sufficient for most as most of us aren't hitting the race track for 30min sessions.

Also to OP...Yes a hpfp is a good idea. Our cars should have came with a Dorche stage 1 equivalent.

You’re certainly not doing that on a CTS intercooler. It went up 8F in a 3000-6000rpm pull. Thats not going to get better when the weather gets warmer, or with more boost

You can absolutely get away with a MAD/VRSF/BMS 5” and be ok, all are better than the CTS.

[CanadianM2]

Originally Posted by AmuroRay

You’re certainly not doing that on a CTS intercooler. It went up 8F in a 3000-6000rpm pull. Thats not going to get better when the weather gets warmer, or with more boost

You can absolutely get away with a MAD/VRSF/BMS 5” and be ok, all are better than the CTS.

Maybe you are mistaken, in my previous post I said it went up 8F after two full gears, 3000-6500rpm.

[AmuroRay]

Originally Posted by CanadianM2

Maybe you are mistaken, in my previous post I said it went up 8F after two full gears, 3000-6500rpm.

I'm not mistaken, it's what I observed according to your log:

https://bootmod3.net/log?id=6542797a9c66d258c903abe0

Single gear, starts at 72F and goes to 80F.

No intercooler is going to be 100% efficient, and this idea that this intercooler (or most other ones) will regularly be with in 10F of ambient it not realistic. It realistically will be around 15-20F+ over ambient in anything around 70F and go up from there, so plan accordingly.

[CanadianM2]

Yes that’s indoors with one small fan blowing at the car haha, not a realistic driving scenario 😀 I did 8-10 logs driving the car and the IC worked as expected. Although I seem to having an unrelated isssue now 👍

I also posted two logs, you can see the IAT in that does not match the performance of the indoor with static air log

[AmuroRay]

Originally Posted by CanadianM2

Yes that’s indoors with one small fan blowing at the car haha, not a realistic driving scenario 😀 I did 8-10 logs driving the car and the IC worked as expected. Although I seem to having an unrelated isssue now 👍

I also posted two logs, you can see the IAT in that does not match the performance of the indoor with static air log

Did you actually look at your log? I’ll start this by saying that Intercooler is meh at best, and I stand by my recommendations to - Kiddvegas

Your street log shows you making basically 14psi (vs 16-17psi in the dyno log) so you likely ran it in comfort mode, but it still noted IAT increase towards the end of the run.

Next is the links I provided you in your prior thread where is shows in 30F weather, an increase of 17-20f+ over ambient. It only gets worse the longer the drive is, and the hotter it is outside.

https://f87.bimmerpost.com/forums/showthread.php?t=2049782

FYI my car can be literally at ambient for 10-15 mins of my drive (ambients in the 70s to 80s) but after driving for 10-15 mis, under and around 10F. Not everyone needs what I have but I would pay the same money on the CTS vs another option that performs better.