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      09-19-2023, 04:16 AM   #1
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Franken F55 turbo for N55 EWG is here (kinda)

On pre -order but it's actually finally coming.

http://https://frankenturbo.com/FrankenTurbo-F55-for-BMW-EWG-N55-p543440859

I'm surprised there is no marketing blurb, isn't it meant to be unique?

Better flowing manifold and lower EWG's?

What's the ceramic coat option pertain to, an internal lining?
What would benefits be.

Is this a stage 1.5 or more like a 2?

What will spool be like.

Experts weigh in!
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      09-19-2023, 11:57 AM   #2
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http://https://frankenturbo.com/FrankenTurbo-F55-for-BMW-EWG-N55-p543440859

I'm surprised there is no marketing blurb, isn't it meant to be unique?
There's a lot of discussion on their FB group but nothing is proven yet.

Better flowing manifold and lower EWG's?
Yes, the manifold is unique and flows more that the other options out there.

What's the ceramic coat option pertain to, an internal lining?
What would benefits be.
Its a coating on the manifold to keep temps down.

Is this a stage 1.5 or more like a 2?
This is supposed be a stage 3 turbo similar to the pure 750

What will spool be like.
They claim spool to be similar to a PS2 so 3700-3900 RPM
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      09-19-2023, 06:22 PM   #3
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Thanks, not for me personally then!
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      09-19-2023, 11:26 PM   #4
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Quote:
Originally Posted by 3t3p View Post
Thanks, not for me personally then!
If you're looking for stock like spool, check out the Shuenk N55+. It's a 1.5 turbo capable of about 500WHP on ethanol.

https://shuenk.com/N55-Upgrade-Turbo...rms-p532281276
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      09-19-2023, 11:32 PM   #5
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Quote:
Originally Posted by NEWTRON View Post
If you're looking for stock like spool, check out the Shuenk N55+. It's a 1.5 turbo capable of about 500WHP on ethanol.

https://shuenk.com/N55-Upgrade-Turbo...rms-p532281276
Did any forum members ever post Dynojet numbers and logs with the N55+ and ethanol?
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      09-19-2023, 11:44 PM   #6
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Quote:
Originally Posted by ZM2 View Post
Did any forum members ever post Dynojet numbers and logs with the N55+ and ethanol?
Not that I have seen. Most of the guys on the facebook group are E series owners.
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      09-20-2023, 03:31 AM   #7
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Ah that's the product I was thinking of and got it confused with the F55 announcement.

The N55+ also has higher flowing turbofold? (if that's what it's called?!).

It would be like the pure 500 and a bit above dinan big turbo?

Installation looks more involved however than straight drop in nature of Dinan?

Last edited by 3t3p; 09-21-2023 at 02:35 PM..
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      09-20-2023, 10:53 AM   #8
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Sub'd for updates
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      10-08-2023, 12:09 AM   #9
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Quote:
Originally Posted by ZM2 View Post
Did any forum members ever post Dynojet numbers and logs with the N55+ and ethanol?
Piece of info by searching and asking a guy on their FB group, N55+ turbo and M235, Dorch stage 2 hpfp, stock lpfp. Looking good. Hitting 20+psi boost@3500rpm, and carrying to redline. 7k miles already no issue.
And it looks like he's running another revision street aggressive map hitting 25psi for torque. 0.0#

Only log I could find:
https://datazap.me/u/235-4-me/log-16...lU7hg4rxPLFOOM
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Last edited by ericlr1225; 10-08-2023 at 12:22 AM..
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      10-08-2023, 09:52 AM   #10
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Quote:
Originally Posted by ericlr1225 View Post
Piece of info by searching and asking a guy on their FB group, N55+ turbo and M235, Dorch stage 2 hpfp, stock lpfp. Looking good. Hitting 20+psi boost@3500rpm, and carrying to redline. 7k miles already no issue.
And it looks like he's running another revision street aggressive map hitting 25psi for torque. 0.0#

Only log I could find:
https://datazap.me/u/235-4-me/log-16...lU7hg4rxPLFOOM
Interesting. Only 25whp more than my TTE460, Dorch Stage 1, and E50.
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      01-08-2024, 06:58 PM   #11
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Quote:
Originally Posted by 3t3p View Post
Thanks, not for me personally then!
Me either and this is true for most of our M235i power goals. Pure500 or the shuenk N55+ Dinan turbo and even the pure stage2 is sufficient.
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      01-08-2024, 07:13 PM   #12
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Quote:
Originally Posted by ericlr1225 View Post
Piece of info by searching and asking a guy on their FB group, N55+ turbo and M235, Dorch stage 2 hpfp, stock lpfp. Looking good. Hitting 20+psi boost@3500rpm, and carrying to redline. 7k miles already no issue.
And it looks like he's running another revision street aggressive map hitting 25psi for torque. 0.0#

Only log I could find:
https://datazap.me/u/235-4-me/log-16...lU7hg4rxPLFOOM
That's impressive indeed but the pure500 should be able to do the same. The pure 500 is probably more reliable option plus it's cheaper. PURE is tried and true going to pull the trigger on pure 500.
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      01-08-2024, 07:15 PM   #13
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Quote:
Originally Posted by ZM2 View Post
Interesting. Only 25whp more than my TTE460, Dorch Stage 1, and E50.
Full e85 should get similar numbers?
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      01-08-2024, 07:26 PM   #14
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Quote:
Originally Posted by F22_HADES View Post
That's impressive indeed but the pure500 should be able to do the same. The pure 500 is probably more reliable option plus it's cheaper. PURE is tried and true going to pull the trigger on pure 500.
There's no way pure 500 will be able to do the same. The pure 500 is the old ps1 with a modified (likely clipped or a reprofiled design, they say it is larger but I don't see how that's possible without porting the exhaust manifold larger which they don't specify is required so likely you don't have to do it and thus there is no way the turbine can be bigger) exhaust turbine. Other than that the factory turbo fold remains the same. This will likely mean it will be able to flow more at the top end compared to the old ps1 and perform similarly to the TTE460 which also has a modified (and likely clipped) exhaust turbine.

But neither of these turbos will likely be able to flow enough exhaust gas to hold 20psi + to redline, especially not with the stock exhaust manifold and the tiny turbine wheel.

In terms of reliability how do you know the pure 500 will be more reliable than the n55+ there is no data to back this assumption up. Firstly the old pure turbos (ps1 and ps2) were so reliable because they reused the stock bmw/borgwarner CHRA - and borgwarner is a billion dollar company with a crap ton of money and engineers behind rnd leading to some of the best turbos in the world and turbos used by OEMS. That's why pure's old turbos were so reliable, because they reused already tried and trued CHRA's made by BW. The new pure 500 is brand new made from the ground up for pure by who knows - but it is likely made in China by the few turbo companies over there just like the n55+ is. This means the new pure 500 has zero reused parts (asides from the exhaust manifold) and therefore reliability will be an unknown just like the n55+. The thing pure has going for them is their excellent reputation for taking care of their customer, so if it does fail then you know it will be warrantied. Other than that you can't simply say it will be more reliable.

So the pure turbo name has a good reputation, but this turbo certainly isn't tried and true - atleast not yet because it is relatively new.
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      01-08-2024, 11:23 PM   #15
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Correct, pure500 is just another ps1 with core change. I doubt it would reach close to 500whp.
N55+ is with modified exhaust manifold. I'm pushing above 550whp now. We will see soon when I'm done tuning and put it on the dyno.
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      01-08-2024, 11:28 PM   #16
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Quote:
Originally Posted by ericlr1225 View Post
Correct, pure500 is just another ps1 with core change. I doubt it would reach close to 500whp.
N55+ is with modified exhaust manifold. I'm pushing above 550whp now. We will see soon when I'm done tuning and put it on the dyno.
There's no core exchange fee with ps1 it's just like the vtt stage 1 now, you buy it and you get the entire turbo (minus the exhaust manifold) nothing to return.
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