[YouAreMyWorld]

Originally Posted by Dejan_

Are you an EWG car? Can't see description on the app?

Yeah between 5,000-6,000 that thing nosedives and fast. Honestly it's tough to get it to hold on a flash tune. Most flashes I've seen concentrate on low end and midrange and from what I've seen the harder you tune them down low the faster they fall up top.

What year and model car are you?

A proper flash tune is so much safer than JB4, it's almost disconcerting. Stock wise, hitting high-boost targets on pump gas, let alone shitty Vodka-esque 91ACN, in the upper-rev range consistently is asking for something to blow up. There's not enough octane/fuel to warrant doing such--it just isn't safe. Sure I could add meth and E85, but when you start adding meth as a fuel supplement instead of a fuel additive to account for cleaning up some timing corrections, you're at the mercy of said auxiliary controller. And should that controller malfunction.. so will your engine.. in just about the worst way.

Meth is great for when you're looking for a little more "oomph" & refinement, but not so much when you're trying to really stretch the limits and go beyond them. Any reputable tuner knows this and will take all of the aforementioned into account, that's why our mid-range is awesome, while our top end is extremely lackluster.

The amount of fuel/fuel octane & the stock turbo are by far the most limiting factors. How can one circumvent all of this? Upgrading the turbo, to put it bluntly.

As for which turbo version I have, I'm honestly not sure. Whatever came with the E-Series N55.

[FSociety]

Originally Posted by YouAreMyWorld

A proper flash tune is so much safer than JB4, it's almost disconcerting. Stock wise, hitting high-boost targets on pump gas, let alone shitty Vodka-esque 91ACN, in the upper-rev range consistently is asking for something to blow up. There's not enough octane/fuel to warrant doing such--it just isn't safe. Sure I could add meth and E85, but when you start adding meth as a fuel supplement instead of a fuel additive to account for cleaning up some timing corrections, you're at the mercy of said auxiliary controller. And should that controller malfunction.. so will your engine.. in just about the worst way.

Meth is great for when you're looking for a little more "oomph" & refinement, but not so much when you're trying to really stretch the limits and go beyond them. Any reputable tuner knows this and will take all of the aforementioned into account, that's why our mid-range is awesome, while our top end is extremely lackluster.

The amount of fuel/fuel octane & the stock turbo are by far the most limiting factors. How can one circumvent all of this? Upgrading the turbo, to put it bluntly.

As for which turbo version I have, I'm honestly not sure. Whatever came with the E-Series N55.

I definitely agree, but so can be said about Port Injection if it doesn't have a proper failsafe/controller too.

Meth is great just make sure you have a proper controller with failsafes and don't cheap out.
I know a few folks using meth just for cooling and a little extra running Boostjuice 49% meth/51% water.

Tuning should only be done with those running no less than 93 octane from TopTierGas station, seen those running Speedway/Raceway with shitty timing.
Thats why E85 is so great small amount of blends, increases octane for extra benefit.

[YouAreMyWorld]

Originally Posted by FSociety

I definitely agree, but so can be said about Port Injection if it doesn't have a proper failsafe/controller too.

Meth is great just make sure you have a proper controller with failsafes and don't cheap out.
I know a few folks using meth just for cooling and a little extra running Boostjuice 49% meth/51% water.

Tuning should only be done with those running no less than 93 octane from TopTierGas station, seen those running Speedway/Raceway with shitty timing.
Thats why E85 is so great small amount of blends, increases octane for extra benefit.

Exactly, that's when Meth is most ideal and recommended. So you can run a little more timing (safely), decrease corrections, maybe run 2-3PSI more and hold it in the higher rev-ranges. Unfortunately there are those that do not realize this and use Meth in a way that's just asking for trouble, unbeknownst to them anyway... or so you'd think.

How do you think I feel? Lmaoo, I'm stuck with only what's available; awful 91oct.. and not just 91.. California 91. Plus sprinkle in one E85 pump in the entire area, that's also 15 miles away.. yeah it's definitely not something I can put in regularly unless I'm in the area. Having 91 only wouldn't be as big of a deal if E85 pumps were more ubiquitous.

[harkes]

Originally Posted by FSociety

M2 & X4 M40 are definitely holding more than 15psi after 5500rpm with Bootmod3 only

See attachment, M2 and my log...

Same log I see my
3rd gear 6k rpm 16psi
4th gear attached
5th gear 6560 rpm 15psi

Shouldn't you be looking at MAP instead of Pre-throttle? They should be the same if throttle is 100% open though...

[Bmwscape]

sub'd. Would love to see my car make 450-500whp. Would make for a killer DD. Can't wait to see what competition brings!

[zinner]

Originally Posted by ronanz

PureTurbo quote taken from another site.....
.

It's possible that heat build up from a maxed out PS2 in a cylinder could add stress to a cylinder rings and cause a rod to bend where a different setup might not suffer.

[YouAreMyWorld]

Any updates of more people running this kit?

[YouAreMyWorld]

Just checking in again for any updates on people running this kit.

[yoandry]

Well. Seems all these turbo options are my second option as nothing has been really improve. PS2 is the way to go for now.

[Newguy123]

Originally Posted by zinner

It's possible that heat build up from a maxed out PS2 in a cylinder could add stress to a cylinder rings and cause a rod to bend where a different setup might not suffer.

Torque bends rods, It's all in tuning. The nice thing about the PS2 is it's capable of 550+ WHP at redline but spools like a stock turbo so you don't lose any daily driveability. The more tq a car makes down low the higher the cyl pressures resulting in more overall stress on the motor. As rpms increase cylinder pressures actually decrease. This is why it's a good and safe practice to tune a stock motor with a "ramp up" style boost curve vs giving it all the boost right away.

[SeanWRT]

Originally Posted by Jadar

There are a handful upgrades but I don't think anything definitive as far as action videos. Most that I have heard of upgraded are still testing and tuning.

I can only speak for the local to me X4 with a stage 2 ball bearing and he is ironing out his tune. His results should come up very soon but he will have to chime in on that. It will be interesting to see what they all do comparing to Pure since they set the benchmark.

I hope the N55 in that X4 is still in one piece

In all seriousness, update please.

[Jadar]

Originally Posted by SeanWRT

I hope the N55 in that X4 is still in one piece

In all seriousness, update please.

Haven't had one myself lol patiently awaiting as well.

[HKD126]

Originally Posted by Jadar

Haven't had one myself lol patiently awaiting as well.

Just saw it a few days ago... still on jack stands.

I told Alex as soon as we see real world numbers on the NOZ stage 2 turbo, I'll be first in line.

[Jadar]

Originally Posted by HKD126

Just saw it a few days ago... still on jack stands.

I told Alex as soon as we see real world numbers on the NOZ stage 2 turbo, I'll be first in line.

Ya it'll be nice to see what it puts out. He just has so many projects and the person tuning his car disappeared so that didn't help . He's working with Dzenno on a tune. It'll be fun to see an x4 tank fly around that's for sure.

[HKD126]

For sure.

Side note, I'm also talking to Jeff@Speedtech about his kit with an EFR 7064 instead of the larger 7670. It has the same outer dimensions so it should work with his kit. I think it may be a bit better sized for my goals of 450-500whp max. Might be a good alternative to the PS2 option once you figure in inlet, outlet, downpipe, etc. money wise. The 7670 just still seems too large for those not looking for 550-650whp. Anyone have thoughts on this?

[Insane435]

I am in for updates as well.

So as of now, we only have pure turbos stage 2 but, eventually there may be a speedtech turbo and a NOZ stage 2 ball bearing turbo?

I just want a turbo setup that is going to be reliable. I don't plan on running meth. I would like to run 93 and then maybe have the option to add fueling and run e85. My goal is going to be 500-525 wheel (EWG car). I believe the Pure stage 2 should be good for that range on pump correct?

[HKD126]

I highly doubt you will hit 500-525whp on PS2 without additional fueling. Probably around 430-450whp on 93.

[Insane435]

Originally Posted by HKD126

I highly doubt you will hit 500-525whp on PS2 without additional fueling. Probably around 430-450whp on 93.

Wow, 430-450 wheel seems a bit depressing. Maybe I should plan on adding the e85 support? I also want to dyno my car with the JB4 on map 01,2,5,7 before switching to BM3 and the bigger turbo. I feel like map 5 is probably pushing in the 360-370 wheel range. I could maybe hit 400 wheel on map 7.

[HKD126]

It sounds like for your goals you should plan on E85. I'm waiting to see what comes with the new EOS intake manifold. Granted I'm not looking to do port injection or anything, but it looks very interesting to say the least.

I still can't help but think this Speedtech kit paired with the EFR 7064 will give the PS2 one hell of a run for its money performance wise. I guess monitarily as well once you add in all the other bits that come with it.

[SeanWRT]

Pure Stage 2, as a hybrid solution, has been reliability proven and best bang for the buck in the N55 turbo upgrade market today.

But here is the thing: People are squeezing 2X as much power out of this little poor thing as it's engineered by Borg Warner to support efficiently, with no fundamental changes except for bigger wheels and bored out housing. And that's in conjunction with a manifold with small passages designed to quick spool a 300-350 crank hp turbo. At the end of day, hybrid turbo is compromised unit and a good thing to start off with as it should make easy money (comparatively speaking) for vendors, but just we shouldn't pushed this far with it.

Take a look at the B58 turbo. This is what a good turbo, from a manufacture perspective, look like to support, let's assume, up to 400-450 crank hp - the turbo has considerably bigger everything, paired with a freer flow manifold piping.

We've seen many full bottom mount turbo upgrade kit (as we're calling Stage 3 in N55 world) from many other platforms. N55 aftermarket should have one as well. Big thanks to ST, BB, Pure and other unknown vendors that's working on it. The days of tuning around 300hp supporting housing and manifold should be over.

I'm hoping for someone to not only offer something that's good for pushing power limit (650hp?) like ST is doing with this kit right now, but also make a full bottom mount kit optimized for factory fueling on pump gas - maybe a EFR 6758 based kit. That would be catering to budgetary market (savings from not upgrading fueling and meth) and those who value balance and streetability over crazy top ends.

[HKD126]

Got word back from Jeff@SpeedTech. He said the EFR 7064 will work with his kit no problem. Also spoke with Dzenno about it and he said he also highly recommends that turbo as well for a quick spooling, responsive daily driven street turbo for 450-500whp. I think I found my huckleberry.

[yoandry]

So $3800 for all these parts in the picture? What about no need for dp and all other staff that we FBO people have already.