[ThreeStripes]

If I was octane limited to 91, I wouldn’t fool with the Pure500. That limited juice not worth the squeeze.

[AmuroRay]

Originally Posted by CanadianM2

Hypothetically if my custom tune (HCP) Stage 2+ DS15 M2 makes 400whp on 91 octane with perfect timing, what are my potential gains with
P500 & P750 and a custom tune from the one of the best tuners (HCP)

I am thinking if staying with the same 91 the P500 may offer me around 420-440whp mark & the 750 should net me around 460-470whp?

I found my dragy and ran a 10.22 60-100kmh in my 6MT and my wife claims it’s slow to be fair my MK7R does 100-200 in 7.9 on the same 91 (upgraded turbo) need my race car to be faster than the daily

On 91? I think I would be happy with 430-440whp on a P500 with the lower being more realistic. With the P750 - 480 seems very obtainable.

[VGSON]

If i was octane limited and wanted power…I’d spend $$ on meth injection..run your 91 and get port meth..

[ThreeStripes]

Once it cools off I’ll get numbers but I confirmed today that on E50 in 95* heat it’s as quick as a stock G80C

[M2guru]

Originally Posted by M2guru

I still have the hotside that has moved/shifted. I just sent the hotside that has the sticking wastegate to them to have them fix it. There are two things they'll have to fix, the flapper valve so that it doesn't stick and the arm of the shaft of the wastegate flapper that is visible on the outside - that broke through the weld and was shifting...I should have got a video of that.

When I take the current one off, I'll take a picture/video of what's going on.

Wasn't expecting to be the beta tester... :-/ Each time I take it off I think "I don't want to do this again soon" so I buy new gaskets to the tune of ~$120 (this time I used FCP for lifetime warranty). Shipping the turbo out was ~$70. Yes - at least I am not paying someone else to do it! I would be quite upset. As it is, I feel like this is the last time I'll be OK with having to swap because of what I'd say has been a bit of a poor manufactured / incomplete / untested product. So far, pretty happy with their willingness to send replacement parts and honor their warranty without any arguing!

Update: Pure turned my 750 turbine side around in a day after they received it and shipped it overnight back to me. This was great of them! I installed it and am ready for my next event (I think/hope!) at Road America in a couple weeks. Hopefully there are no more issues with it!

[johnung]

Originally Posted by TUDMG

Exactly.

I just don't see the appeal of that turbo, especially when it costs over $450 more all in for parts, and way more in labor costs compared to the Pure500. Not to mention Pure has a stellar reputation for customer service.

But so much of the N55 community seems to have been brainwashed by the company's false claims that their turbo "replicates stock responsiveness" and the Pure500 is simply a "refreshed [Pure] stage 1," which is absolutely ridiculous. It seems to be consensus on Facebook at this point that the N55+ is superior based on these dishonest claims.

The N55+ is good value imo, but based on the data it's just no Pure500.

Totally agree with you. The slick Marketing from Shuenk is just parroted over and over by their cult following who just blindly believe it. All that slick marketing of feature by feature implies that the turbo should be better. But actual Dynos prove that it is not!

[johnung]

Originally Posted by Shaq93

The top end drop off is the deal breaker for me. Although not ideal, I think I can deal with the slower spool. But losing 50 or more whp at the top of the rev range isn't compatible with my driving style.

FYI- It’s a lot more than 50hp. Shuenk’s own dyno using 93 octane shows their 55+ turbo peaking and then immediately dropping like a rock by 220whp in just 1100rpm.

[johnung]

Originally Posted by CanadianM2

Hypothetically if my custom tune (HCP) Stage 2+ DS15 M2 makes 400whp on 91 octane with perfect timing, what are my potential gains with
P500 & P750 and a custom tune from the one of the best tuners (HCP)

I am thinking if staying with the same 91 the P500 may offer me around 420-440whp mark & the 750 should net me around 460-470whp?

I found my dragy and ran a 10.22 60-100kmh in my 6MT and my wife claims it’s slow to be fair my MK7R does 100-200 in 7.9 on the same 91 (upgraded turbo) need my race car to be faster than the daily

The fact that so many guys are limited to 91/93 pump gas locally has made me pay more attention to performance of various turbos and mods needed for pump gas.

If Halim got your stock turbo N55 EWG RWD 400whp on 91, that’s pretty awesome. Halim got the M2 Pure500 using weak 93 449whp. So I gotta believe that he would approach that with your M2 P500 if your 91 quality is solid. Obviously the P500 maintains instant response and a plateau hp curve so that power is constant. When my P500 was first installed and just using a St2+ OTS 93 map I could definitely feel the instant response and the fact that the power stayed high, unlike the stock EWG turbo.

Most people are saying that the Pure750 is doing 500whp on pump gas. I’m waiting to see dynos to see if they are all really hitting that 500whp octane limitation or what deductions, if any, the dynos show for 91 vs 93, XDrive vs RWD and PWG vs EWG. The P750 is so large that they all may be pretty close to 500whp.

Now people are reporting delay/lag with the Pure750, but that can be a subjective thing. I’ve heard claims that the P750 only spools 300-400rpm slower than the Pure500. But delay is definitely there because people with the P750 all seem to mention it. I would expect delay because the Pure750 is so large that it can probably do ~650whp on full E85.

I’m very curious to see results from Pure600 installs. Pure claims the P600 has less lag than the P750, and rates the P600 at only 50whp less than the P750.

So I wonder if the P600 isn’t a better choice over the P750 for guys who are limited to pump gas. I’m just speculating here, but what if the P600 is large enough that it hits the same N55 octane limitation as the P750. That would mean that the P600 could have the same or close to the same 500whp performance using pump gas as the P750. But the P600 might have considerably less delay/lag than the P750.

Can’t wait for the first guy to install a Pure600 and dyno to end the speculation!

[M2MANDU]

Hi everyone, long time lurker but new to the forum. A few months ago I stopped by Pure Turbos and spoke with Jimmy and Ryan (thanks guys!) and long story short I ended up with a Pure 600. Turbo was installed about a month ago, and currently in the tuning process. That said, I should be finishing up sometime soon and hoping to get some dyno numbers for myself and everyone that may be curious. Will be scheduling a session at EAS shortly.

Tune is for flexfuel on bootmode, but I have been targeting anywhere between E50-E65. Car has your typical supporting mods, and full list below for anyone interested.

- Pure600, Pure Inlet, TurboSmart VR11 Dual Port, Dorch Stage 2, 200 Cell DP, 3.5 bar TMAP, VRSF Charge Pipe, ARM TIC pipe, CSF oil cooler, MAD 7 inch Intercooler, Eventuri panel filter -

[johnung]

Originally Posted by M2MANDU

Hi everyone, long time lurker but new to the forum. A few months ago I stopped by Pure Turbos and spoke with Jimmy and Ryan (thanks guys!) and long story short I ended up with a Pure 600. Turbo was installed about a month ago, and currently in the tuning process. That said, I should be finishing up sometime soon and hoping to get some dyno numbers for myself and everyone that may be curious. Will be scheduling a session at EAS shortly.

Tune is for flexfuel on bootmode, but I have been targeting anywhere between E50-E65. Car has your typical supporting mods, and full list below for anyone interested.

- Pure600, Pure Inlet, TurboSmart VR11 Dual Port, Dorch Stage 2, 200 Cell DP, 3.5 bar TMAP, VRSF Charge Pipe, ARM TIC pipe, CSF oil cooler, MAD 7 inch Intercooler, Eventuri panel filter -

Your post is music to my ears. Can’t wait to hear more. How is the lag? I’m very curious if it will be closer to the Pure500 with no lag or the Pure750 which apparently has lag, but not as bad as the old PureStage2. Who is tuning yours?

During tuning have you hit flow limits on your stock LPFP or stock fuel injectors?

You don’t need to go over E50. I dyno’d my Pure500 using E82 and E50 and the power difference was no more than 5%. Plus the more ethanol the more likely you are to hit the flow limit of your stock LPFP and stock fuel injectors..

A great upgrade is a Precision Raceworks Stage2.5v2 (Walbro 535) LPFP. Order it custom with straight through wiring with 6 feet of wire slack and the custom configuration that ZM2 ordered to prevent fuel starvation in high speed right turns with <1/2 tank.

Then upgrade to an ET3 Design Stage2 EKP to eliminate the BMW problems of overheating, scorching, melting. The LPFP wires are run directly to the 100A terminal block on the Stage2 EKP. This bypasses all of the problem areas.

Running ethanol the stock fuel injectors hit their max roughly around 520whp. Dorch sells the M5 S63 injectors. If you are using Bootmod3 are your tune base the BM3 config setting for the S63 injectors makes them run rich and throw a cell. The fix is to contact tech support and they can make adjustments inside the tune.

Hope this helps!

[M2MANDU]

Cheers and appreciate the insight! The lag isn't bad, but I would be lying if I said there wasn't a noticeable difference from the stock unit. But to an extent, that is to be expected. I am currently hitting boost target (22-23ish psi) at about 3500-3600 rpm. And as for my HPFP, LPFP, and injectors, I have not had any issues so far. WGDC has been anywhere between 82% - 87% range as well under full load.

HPFP has had no issues hitting target values, LPFP has never dipped, and my injectors have been good. That said, I did replace my EU6 injectors with another set recently as preventative maintenance. I will continue to monitor my LPFP though for any deviations.

Realistically, I am shooting for anywhere between 500-520whp all while trying to stay somewhat conservative in terms of the limits of the turbo. In hindsight, I should have just replaced my injectors with the S63 EU5 units for the additional overhead while I was in there.

That said, I will continue to post updates when I can!

[johnung]

Originally Posted by M2MANDU

Cheers and appreciate the insight! The lag isn't bad, but I would be lying if I said there wasn't a noticeable difference from the stock unit. But to an extent, that is to be expected. I am currently hitting boost target (22-23ish psi) at about 3500-3600 rpm. And as for my HPFP, LPFP, and injectors, I have not had any issues so far. WGDC has been anywhere between 82% - 87% range as well under full load.

HPFP has had no issues hitting target values, LPFP has never dipped, and my injectors have been good. That said, I did replace my EU6 injectors with another set recently as preventative maintenance. I will continue to monitor my LPFP though for any deviations.

Realistically, I am shooting for anywhere between 500-520whp all while trying to stay somewhat conservative in terms of the limits of the turbo. In hindsight, I should have just replaced my injectors with the S63 EU5 units for the additional overhead while I was in there.

That said, I will continue to post updates when I can!

Thanks for the reply. What fuel are you using for the numbers that you mentioned? Who is your tuner? Bootmod3 or MHD?

[M2MANDU]

Not a problem! That data provided is off E55. Currently on Bootmod3 being tune by Cary Jordan.

[socalm2nual]

Is anyone using the B58TU pump with their pure 500? It seems to be a good option for those of us that have to worry about smog.

I believe it takes some fabrication to make the pump fit correctly though… however there is a shop that seems to make the necessary changes, and test fit it before sending it over.

[AmuroRay]

Originally Posted by socalm2nual

Is anyone using the B58TU pump with their pure 500? It seems to be a good option for those of us that have to worry about smog.

I believe it takes some fabrication to make the pump fit correctly though… however there is a shop that seems to make the necessary changes, and test fit it before sending it over.

The modifications are pretty straigh forward, you can see a few videos on YouTube.

[Joestotn]

Originally Posted by socalm2nual

Is anyone using the B58TU pump with their pure 500? It seems to be a good option for those of us that have to worry about smog.

I believe it takes some fabrication to make the pump fit correctly though… however there is a shop that seems to make the necessary changes, and test fit it before sending it over.

Does it give you the headroom for what the p500 would need on pump gas or a light E-mix? I thought b58tu was about 10% over the n55 pump? Am I wrong on that?

[AmuroRay]

Originally Posted by Joestotn

Does it give you the headroom for what the p500 would need on pump gas or a light E-mix? I thought b58tu was about 10% over the n55 pump? Am I wrong on that?

I thought it was closer to the DS1 - I know it's enough for full send on pump and E40 mixes on HMD.

[Joestotn]

[QUOTE=AmuroRay;31442157]I thought it was closer to the DS1 - I know it's enough for full send on pump and E40 mixes on HMD.



Stock turbo though or with the p500? Really that's been my hold up. Between the turbo and fueling upgrades, I could throw that money at an m4. I just like the smaller platform of the 2 series.

[AmuroRay]

[QUOTE=Joestotn;31442511]

Originally Posted by AmuroRay

I thought it was closer to the DS1 - I know it's enough for full send on pump and E40 mixes on HMD.



Stock turbo though or with the p500? Really that's been my hold up. Between the turbo and fueling upgrades, I could throw that money at an m4. I just like the smaller platform of the 2 series.

I can't remember, but I remember the tuners in the UK, WGMotorwerks were using it on a few of their builds. You used to be able to see the posts on Facebook without an account, but now you can't.

I know that it's flow was very close to a DS1 from what was shown:



https://f30.bimmerpost.com/forums/sh....php?t=1676672

[ZM2]

[QUOTE=AmuroRay;31442700]

Originally Posted by Joestotn

I can't remember, but I remember the tuners in the UK, WGMotorwerks were using it on a few of their builds. You used to be able to see the posts on Facebook without an account, but now you can't.

I know that it's flow was very close to a DS1 from what was shown:



https://f30.bimmerpost.com/forums/sh....php?t=1676672

I can say from my TTE460 and ethanol experience that's there's no way the B58TU pump would support the BM3 Stage 2+ maps and E40-50 with a P500.

Those are the old DS1/2 flow rates before I worked with Chris Dorch and Halim @ BM3 a few years ago to test increased flow parameters for the DS1. I was having drops outs with E40-50 and Chris & Halim successfully upped the flow of the DS1 via software settings & the BM3 drop down to make the OTS 2+ map work with E40-50 and my TTE460, which did 478whp on my setup.

Sure you could make the weaker B58 pump work with less ethanol & boost, but then what's the point of the turbo upgrade?

[johnung]

Originally Posted by ZM2

I can say from my TTE460 and ethanol experience that's there's no way the B58TU pump would support the BM3 Stage 2+ maps and E40-50 with a P500.

Those are the old DS1/2 flow rates before I worked with Chris Dorch and Halim @ BM3 a few years ago to test increased flow parameters for the DS1. I was having drops outs with E40-50 and Chris & Halim successfully upped the flow of the DS1 via software settings & the BM3 drop down to make the OTS 2+ map work with E40-50 and my TTE460, which did 478whp on my setup.

Sure you could make the weaker B58 pump work with less ethanol & boost, but then what's the point of the turbo upgrade?

[QUOTE=Joestotn;31442511]

Originally Posted by AmuroRay

I thought it was closer to the DS1 - I know it's enough for full send on pump and E40 mixes on HMD.



Stock turbo though or with the p500? Really that's been my hold up. Between the turbo and fueling upgrades, I could throw that money at an m4. I just like the smaller platform of the 2 series.

Over time I ended up getting all of the upgrades necessary to run full E85. But you really can get most of the power by upgrading to a Pure500, a Dorch Stage 1.5 HPFP and using E50 fuel.

That fuel configuration on an N55 EWG RWD should hit 500whp. An N55 EWG XDrive dyno’d at 486whp using E50. Allowing for their 4% drivetrain difference, the RWD calculates to 506whp.

[AmuroRay]

From what's posted by the B58 guys, the TU pump Is 23% more than stock, the DS1 is 36%.

The Tu pump is really good for California people who can't upgrade the HPFP without a flash option which the TU pump allows

It functiona just like the stock HPFP, and can be tuned in relatively the same way. Yes, absolute headroom will be lower.