[switlikbob]

Originally Posted by BruceM

No sir. That's for the track for me. To truly take advantage of that setting, I would have to drive too irresponsibly for public roads. Which I very much look forward to doing in another setting

As I said above, I was getting wheel spin off and on all the way through 2nd and 3rd with traction control on. I also look forward to comparing performance with it off, for sure. Seems to me that all else being equal, wheel spin would increase when the ecu isn't sensing spin and cutting power...

Oh come on Bruce, you can can keep it "slightly responsible".
I just feel like the traction control, even in Sport + mode, is a bit restrictive compared to having traction control completely off. I know it's WAY better than some of the past TC systems from BMW, but still a bit too nanny-like for my liking.

Originally Posted by Stage IV

I think a 50 (near top of 2nd gear) to 100 run would be a nice indicator of pulling power if you can find a safe stretch. Love to hear your impressions on that.

I agree

Actually, we should be using vbox results for gauging performance increases, not a dyno.

[BruceM]

[QUOTE=switlikbob;21401797]Oh come on Bruce, you can can keep it "slightly responsible".
I just feel like the traction control, even in Sport + mode, is a bit restrictive compared to having traction control completely off. I know it's WAY better than some of the past TC systems from BMW, but still a bit too nanny-like for my liking.

Of course it is. The "restriction" is meant to save our asses, and/or the asses of those on the road with us.

Over the years, I've learned that it's best for me to get my ya-yas out on the track, as opposed to cowboy-ing too much on public roads. As it is, I probably push those limits too much still, but at least my record is decent and I haven't hurt anyone.

I got into this M2 by totaling my e36 M3, which involved spinning out on a highway on-ramp, banging off a guardrail, and doing at least a 540 down an embankment to the highway itself, ending up with the back end of the car sticking into oncoming traffic. The turf plume I was sending up from the embankment probably alerted drivers enough to avoid a collision. But it was a sobering experience.

The weird thing was that I wasn't racing anybody, was on a ramp I had been on basically daily for years, etc. It was cold and raining, but not iced up that I could tell. But a second after I squeezed the throttle I started spinning, and didn't stop until I had finished the path I described. Nasty. Still cannot reconstruct what happened. I had certainly done way worse stuff than that before and not had a problem. But I have no desire to risk anything like that again on public roads. On the track, unless it's wheel to wheel, I can run much closer to the edge and still feel reasonably sane.

[switlikbob]

[QUOTE=BruceM;21401867]

Originally Posted by switlikbob

Oh come on Bruce, you can can keep it "slightly responsible".
I just feel like the traction control, even in Sport + mode, is a bit restrictive compared to having traction control completely off. I know it's WAY better than some of the past TC systems from BMW, but still a bit too nanny-like for my liking.

Of course it is. The "restriction" is meant to save our asses, and/or the asses of those on the road with us.

Over the years, I've learned that it's best for me to get my ya-yas out on the track, as opposed to cowboy-ing too much on public roads. As it is, I probably push those limits too much still, but at least my record is decent and I haven't hurt anyone.

I got into this M2 by totaling my e36 M3, which involved spinning out on a highway on-ramp, banging off a guardrail, and doing at least a 540 down an embankment to the highway itself, ending up with the back end of the car sticking into oncoming traffic. The turf plume I was sending up from the embankment probably alerted drivers enough to avoid a collision. But it was a sobering experience.

The weird thing was that I wasn't racing anybody, was on a ramp I had been on basically daily for years, etc. It was cold and raining, but not iced up that I could tell. But a second after I squeezed the throttle I started spinning, and didn't stop until I had finished the path I described. Nasty. Still cannot reconstruct what happened. I had certainly done way worse stuff than that before and not had a problem. But I have no desire to risk anything like that again on public roads. On the track, unless it's wheel to wheel, I can run much closer to the edge and still feel reasonably sane.

Wow BruceM , I have a VERY similar story regarding my e36, driving to work in the rain, my car spinning out, hitting guard rails, and being totaled. Much like you, I was NOT doing anything crazy (although I definitely did really crazy things with that car). It turned out that the inside of my rear tires were bald (due to camber) and I didn't know it. Karma is a bitch!

I do know what you mean about safety on the public roads, and I agree. However, I live in an area where there are some very lighly traveled roads, and I am not afraid to shut off the TC and have some fun.

[gavinsan]

Originally Posted by BruceM

Congratulations on your clairvoyance. But the M2 is still a better balanced car than the M4. Traction is not the only problem with the M4's balance. I am confident that a few track days and some decent tires will teach how to modulate the throttle and maximize power to the ground at 10/10ths. Plus, these cars are rarely driven at 10/10ths. Anything below that and even boosted M2s will still be more fun and easy cars to handle.

I appreciate what you are saying but if you read back what you wrote


"I am confident that a few track days and some decent tires will teach how to modulate the throttle and maximize power to the ground at 10/10ths."

This is still a compromise which detracts from the balance of the car , having to drive the car without being able to aggressively get on the power out of corners etc ..

I am just apprehensive that tuning the engine is a benefit and to make the car more effective especially on track i wonder if the money could be better spent elsewhere ie brakes , suspension

[BruceM]

Originally Posted by gavinsan

I appreciate what you are saying but if you read back what you wrote


"I am confident that a few track days and some decent tires will teach how to modulate the throttle and maximize power to the ground at 10/10ths."

This is still a compromise which detracts from the balance of the car , having to drive the car without being able to aggressively get on the power out of corners etc ..

I am just apprehensive that tuning the engine is a benefit and to make the car more effective especially on track i wonder if the money could be better spent elsewhere ie brakes , suspension

Yes, I understand, but what I also said in a subsequent post that "balance," unless the suspension is truly overpowered, is more about how a car reacts when traction is lost than about the ratio of hp and torque to suspension components. I do not believe that the Dinan set-up overpowers the suspension in some fundamental way--I was losing traction on straight-ahead WOT pulls. Instead, the car's basic "balance" will prove up to the increased power, that is, its characteristics at the limit--the way it reacts to loss of traction--will remain M2-like. Therefore, the trick will be to get better rubber, and modulate the throttle differently from a stock M2...but the power won't change the M2 to an M4. The difference in power may be gone, but the other, positive, differences will remain. We will see soon enough....

[gavinsan]

Originally Posted by BruceM

Yes, I understand, but what I also said in a subsequent post that "balance," unless the suspension is truly overpowered, is more about how a car reacts when traction is lost than about the ratio of hp and torque to suspension components. I do not believe that the Dinan set-up overpowers the suspension in some fundamental way--I was losing traction on straight-ahead WOT pulls. Instead, the car's basic "balance" will prove up to the increased power, that is, its characteristics at the limit--the way it reacts to loss of traction--will remain M2-like. Therefore, the trick will be to get better rubber, and modulate the throttle differently from a stock M2...but the power won't change the M2 to an M4. The difference in power may be gone, but the other, positive, differences will remain. We will see soon enough....

Sounds exciting

[No Boost]

Snooze fest here lately. (Im)patiently awaiting folks to return their cores so I can get my fucking turbo already...sorry, St Patrick's happy hour booze ranting. Dinan_Engineering , you're playing right into the California "we're laid back and proud of it" stigma. Move your ass

[switlikbob]

Snooze fest for real. Who has more personal experiences with this setup? I am so close to pulling the trigger, but I've heard just as many neutral experiences as gooud ones. I've really yet to hear anyone be "blown away". Please share guys 😀

And my train of thought is that if I do get the p2 package and I'm not happy in the long term, at least I'll have supporting hardware for a well developed flash tune when it becomes available.

[bi0hazard]

Originally Posted by switlikbob

Snooze fest for real. Who has more personal experiences with this setup? I am so close to pulling the trigger, but I've heard just as many neutral experiences as gooud ones. I've really yet to hear anyone be "blown away". Please share guys ��

And my train of thought is that if I do get the p2 package and I'm not happy in the long term, at least I'll have supporting hardware for a well developed flash tune when it becomes available.

I have yet to see a great review, whether seat of the pants, dyno or 1/4 mile. A simple $300 sport tuner will give you $hitload of torque for fun. Personally, Id want to see some serious hp numbers or better yet actual 1/4 mi time improvement to spend that kind of $$.

[No Boost]

Originally Posted by switlikbob

Snooze fest for real. Who has more personal experiences with this setup? I am so close to pulling the trigger, but I've heard just as many neutral experiences as gooud ones. I've really yet to hear anyone be "blown away". Please share guys 😀

And my train of thought is that if I do get the p2 package and I'm not happy in the long term, at least I'll have supporting hardware for a well developed flash tune when it becomes available.

There was one M3/4 owner who rode shotgun and was truly impressed by his buddy's M2....something along the lines of "should've come from factory like this, feels faster than stock M3/4, on par with ZCP M3/4"....it could be in this very thread. As for supporting hardware, the exhaust with resonator delete is a fantastic jumping off point...top notch quality and sound and racecar looks...as for the CAI, it's an intake. Better than stock, obviously with increased sound. What else do you want?...if stage 4 targets 5 psi over stock with daily driveability and matching warranty, it's most likely worth it for me...only caveat is that the sport tuner targets 4 psi for shit tons less money, granted heat soak is inevitable during warm conditions. It takes a quoted 1.5 hours to install the stage 4 box compared to 30 seconds for sport tuner. That speaks volumes.

[Bimmer28312]

Here it is guys, I've had the turbo upgrade for about a month or so now. Initially I was reluctant to give my opinion because I was very underwhelmed on power increase that I thought something was wrong. Well it's not.. I can feel the increase in power up too around 3.5/4k rpm but it's definitely not night and day. I've been trying to get on the dyno. It the only dyno shop around me has been booked up on days on available. But I don't have any leaks and all hardware​ is on appropriately.
Soo... I have a couple of options here. 1. I can return my dinantronics which was $1800 (personally not worth it) and run jb4 for now.
2. If do choose to remove it go with a real flash and use BM3 and j 4 together. This would give me more options to upgrade like PI and e85 etc.
3. I could just be happy with what I have and enjoy this awesome car. Hopefully I can get this on the dyno before the 20th which is when I have to make my decision.
So there it is guys

[bi0hazard]

Bimmer28312:

Honest review, thank you.

As an alternative to dyno, also consider just taking it to the track. If your 1/4mi speed is 118-120mph, then you know it's working well.

B

[BruceM]

Wow. My experience is almost diametrically opposed to that of Bimmer 28312. For me, the car drives very similarly to stock up until about 3500, then is seriously different between maybe 4 grand and redline, with the sweet spot about 4500-6500. It is definitely more than the Contis can handle. My set-up includes a Pure inlet and a Fabspeed DP, and those went in the same time the P2 did. But those two can't have caused this difference on their own.

[Bimmer28312]

I also have Dinan exhaust, supporting Dinan mods for the turbo, and vrsf dp.

[No Boost]

Originally Posted by bi0hazard

Bimmer28312:

If your 1/4mi speed is 118-120mph, then you know it's working well.

I agree with this assessment. If C&D performs an instrumented test, it should trap that....5-7 mph over stock, 1-2 higher with a DP.

[Bimmer28312]

Weather hasn't been great here in NorCal. I'll see maybe next weekend

[Bimmer28312]

As requested, I'll log a few runs today and post for you guys.

[switlikbob]

Originally Posted by Bimmer28312

As requested, I'll log a few runs today and post for you guys.

Bimmer28312 How did those runs turn out?

[auf Deutsch]

Looking at mid April for my turbo to ship....ordered late January. Keep that in mind when planning on upgrading.

[Dinan_Engineering]

Originally Posted by auf Deutsch

Looking at mid April for my turbo to ship....ordered late January. Keep that in mind when planning on upgrading.

PM Incoming...

[DrKevM5]

Originally Posted by auf Deutsch

Looking at mid April for my turbo to ship....ordered late January. Keep that in mind when planning on upgrading.

Ditto. I dropped mine off Feb 3rd. Just informed that turbo won't be in until late April. Looks like I'll be missing the first track events of the season. Ridiculous.

[auf Deutsch]

Originally Posted by auf Deutsch

Looking at mid April for my turbo to ship....ordered late January. Keep that in mind when planning on upgrading.

My dealer ordered a turbo on 1/26 which was shipped out on 3/22. This should be mine as that is the date I ordered it. They ordered their next turbo on 2/28 which would make for a mid April delivery. Either they are confusing orders or I am getting bumped for some reason. I do know that they were planning on ordering a stage 4 kit for their demo M2.

Regardless, Dinan is still adhering to their 8 week lead in this particular case. I'm emailing my dealer wanting a satisfactory answer.