[zFrostyy]

Was there an earthquake during the dyno? How the hell did you manage to get a loop-de-loop on the dyno?(yellow)

[kern417]

probably wheel spin

[FSociety]

Originally Posted by Vapeconj

What's the difference between the N55 PS2 and the M2 Specific PS2. Why would one opt for the N55 specific one when keeping your core cost 3k instead of 1k for the regular N55 PS2.

What changes were made to triple the cost of keeping your core. I'm trying to decide here what the best option is and while I was highly considering this option it seems kind of ridiculous to be triple the price to keep your stock core.

My main concern is that I want to keep my stock turbo just encase and I haven't seen any real world info yet showing why one would purchase the M2 specific PS2 over the N55's?

If I'm mistaken and it's completely different please correct me and I would love to learn why but I'm just confused and want to make a decision as Dinans Big turbo seems like a good investment as of now due to the warranty and known stability of the turbo and OEM feel.

Please tell me something that'll explain why the core charge is 3k vs 1k on the M2 PS2 vs the N55 PS2. Pretty sure if I'm not mistaken they are the same stock factory turbo from bmw.

Thanks for the information in advance hope to hear back!

Originally Posted by Vapeconj

Anyone know why?? @PureTurbo ? Anyone else have some insight as to maybe why?? Is it just an ///M tax?

Originally Posted by zFrostyy

Was there an earthquake during the dyno? How the hell did you manage to get a loop-de-loop on the dyno?(yellow)

I'm betting is JB4 the way it manipulates, seen it in my car and other friends car.

Originally Posted by kern417

probably wheel spin

Definitely not, this is an example of piggyback tricking the ECU

[kern417]

Originally Posted by FSociety

Definitely not, this is an example of piggyback tricking the ECU

how would that affect the dyno readings? i've seen weirder things than that before from wheel spin. wheel slips, rollers keep moving, then tire catches and keeps moving up.

[PeterPure]

Originally Posted by Vapeconj

Anyone know why?? @PureTurbo ? Anyone else have some insight as to maybe why?? Is it just an ///M tax?

The reason for this is very simple. The M2 turbofold is slightly different from the regular 235 turbofold. And M2 spare turbofolds are not easily available on the used market. So new turbofolds are being bought from bmw to modify them into pure st2 units. And bmw charges big money for them. Pure is just passing on the cost of that to the customer that decides to keep their stock turbofold.

So if you want to keep your stock turbo just go and look for a used or cheap new turbofold that you can buy and set that one to Pure. But you wont find many so probably end up buying a new one from bmw and will pay the same.

Hope that explains.

[kern417]

so it is ///m tax, just from bmw's side.

[Arnold_Powers]

Originally Posted by jtodd_fl

Hasn't the M2 been out like a couple months? How can we give it the reliability nod quite yet? Heh.

(Me too, by the way.)

because the n55 won engine of the year i believe twice ?

[velociti]

Originally Posted by brooke1972

wow..

There are many, many folks with a Pure Stage 2 turbo on their N55. So even though there are, or seem to be, very few people with a PS2 on their M2, the turbo is sound, and there are multiple tuning platforms for it, including BM3 and MHD. There's also this guy
who is putting down 436/565 FBO on 93oct with a custom BM3 tune. Until people are out of warranty, I wouldn't expect to see too many of these builds...

[Soofy]

Originally Posted by brooke1972

Any other reviews or updates on this??

Here is some ps2 N55 results with different mods and fueling

and http://f30.bimmerpost.com/forums/sho....php?t=1383965