[AmuroRay]

Originally Posted by ///MPhatic

I'm on the BM3 Stage 2 91 octane OTS map (but use 93 exclusively) and the car is faster for sure, but I also feel like there is more lag. Also, the car isn't any more fun to drive, it's just faster. I'm wearing 280 treadwear Yokohama V601's in 255/35 & 275/35 and don't get any more grip than stock really.

Supporting mods are: Fabspeed catted down pipe, Mad Dad charge pipe, and CSF intercooler

Have you checked your logs or connections to see if there is a boost leak?

[///MPhatic]

Originally Posted by AmuroRay

Have you checked your logs or connections to see if there is a boost leak?

Not yet, the car sleeps in temps under 42°. The connections look good, but will have to be completely undone to check properly, and I plan to do that with the BP and DV in the Spring.

But as I said before, I don't suspect a boost leak, I suspect that I'm just more sensitive to the boost change difference vs stock than most guys, having driven the car for 2 years without mods, then doing all the Stage 2 stuff at once.

[AmuroRay]

Originally Posted by ///MPhatic

Not yet, the car sleeps in temps under 42°. The connections look good, but will have to be completely undone to check properly, and I plan to do that with the BP and DV in the Spring.

But as I said before, I don't suspect a boost leak, I suspect that I'm just more sensitive to the boost change difference vs stock than most guys, having driven the car for 2 years without mods, then doing all the Stage 2 stuff at once.

Still, there shouldn’t be any lag, or the perception of it

[///MPhatic]

Originally Posted by AmuroRay

Still, there shouldn’t be any lag, or the perception of it

Originally Posted by AmuroRay

Still, there shouldn’t be any lag, or the perception of it

You keep saying that, but I've seen it reported many times (something I found out after going S2, not before). I'm not going to argue with you about it, which seems to be something you like/want to do, but the feeling is there for sure. I'll also say that I'm 52, not 15, and have had a host of sports cars that I've modified, including several turbo cars, and I know lag when I feel it.

Going stage 2 made my M2 feel like it had a slightly bigger turbo, and with that slightly bigger turbo I got increased lag, much like going from the 12A on my Conquest TSi to the 16G. Modifying the boost alone, like flashing my WRX and STi with an AccessPort, never increased the feeling of lag, but decreased it.

I'll get to the bottom of it when it's warm outside.

[AmuroRay]

and it should be the same with the M2. I’ve flashed and UN flashed my tune plenty of times. You’ll find out for sure in the summer.

[Alexk9]

Originally Posted by AmuroRay

Have a dyno?

[AmuroRay]

Originally Posted by Alexk9

Attachment 3067888

SAE? STD? Even with SAE (approx 2.2% correction) that’s still 388/390whp
And how much power was made at redline? This is really good, looks like you carry power very well past 6000rpm which is where these cars struggle.

[Alexk9]

Originally Posted by AmuroRay

SAE? STD? Even with SAE (approx 2.2% correction) that’s still 388/390whp
And how much power was made at redline? This is really good, looks like you carry power very well past 6000rpm which is where these cars struggle.

I am not sure if it is SAE or STD. I assume the power number would have been similar regardless. I did the dyno when it was about 50 degrees outside and thank you!

[AmuroRay]

Originally Posted by Alexk9

I am not sure if it is SAE or STD. I assume the power number would have been similar regardless. I did the dyno when it was about 50 degrees outside and thank you!

Do you have the runfile?