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2Addicts | BMW 2-Series forum Technical Topics N55 (M235i) Engine, Transmission, Exhaust, Tuning Enzo Performance N55 Turbo Package GROUP BUY INFO

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      02-20-2016, 02:23 PM   #23
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Quote:
Originally Posted by dd1981 View Post
Oh ya Pure stage 2 is more then you will ever need. Here is the link. Take into consideration this is a much heavier 335i as well and you see what it does on top end to the C7.

Do you know the other details of the car by chance? If he's running port injection or meth, etc?

Pretty impressive. Wonder if it's traction issues or the C7 is quicker at lower speeds? Or maybe the boost was limited at lower gears?

I always wondered if this one is real:

https://m.youtube.com/watch?v=ddifKHhjIVU

The Huracan one looks BS to me.
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      02-20-2016, 02:49 PM   #24
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Quote:
Originally Posted by Mywifes335
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Originally Posted by dd1981 View Post
Oh ya Pure stage 2 is more then you will ever need. Here is the link. Take into consideration this is a much heavier 335i as well and you see what it does on top end to the C7.

Do you know the other details of the car by chance? If he's running port injection or meth, etc?

Pretty impressive. Wonder if it's traction issues or the C7 is quicker at lower speeds? Or maybe the boost was limited at lower gears?

I always wondered if this one is real:

https://m.youtube.com/watch?v=ddifKHhjIVU

The Huracan one looks BS to me.
I'm pretty sure he's running meth
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      02-20-2016, 04:24 PM   #25
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Quote:
Originally Posted by Mywifes335 View Post
Do you know the other details of the car by chance? If he's running port injection or meth, etc?

Pretty impressive. Wonder if it's traction issues or the C7 is quicker at lower speeds? Or maybe the boost was limited at lower gears?

I always wondered if this one is real:



The Huracan one looks BS to me.
That I am not sure of. But if I had to guess hes running meth.
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      02-20-2016, 05:01 PM   #26
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Are you afraid of eventually passing the limit of the pistons and rods? The N55 engines don't have forged components like the N54 except for the crank.
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      02-20-2016, 05:01 PM   #27
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Anyone know if a ZF 8HP70/75 would be a plausible swap on the F22? I believe the transmission casing and dimensions are identical to the 8HP45 just with upgraded clutch packs internally. Just thats the route that will probably be needed (amongst other driveline beefing up) with that turbo.
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      02-20-2016, 05:07 PM   #28
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If your wondering about the Huracan and the mods. The description on the video explains all. Not sure how much more real anything in this video can get? :
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      02-20-2016, 05:23 PM   #29
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Originally Posted by EEBreh View Post
Are you afraid of eventually passing the limit of the pistons and rods? The N55 engines don't have forged components like the N54 except for the crank.
For what its worth, the only forged component of the N54 BMW listed in the technical manual was the crank. Pistons and rods were never mentioned bar to say they had been modified to withstand higher torque. People can take from it what they will.

"Pistons and rods

As with the cylinder head, the piston designs differ between engines. The N54 uses a special piston for compatibility with the direct injection system. The piston crown is modified to meet the mixture formation requirements.
The N51 engine uses a lower compression ratio and accordingly uses a different piston design. The N52KP uses the same design as the N52 engine.
The connecting rods on all of the NextGen6 engines have been stiffened with a thicker beam on the rod. This design has also been in production on the N52 since 6/06.

Crankshaft

The cast iron crankshaft is retained for the N52KP and N51. To accommodate the increased power output of the N54, the crankshaft is forged steel."


I know its been beaten to death, but I'm sure they'd have jumped on marketing the pistons and rods if they had been forged like they did with the crank.

But yeah, a forged piston and rod set would be a wise investment on an N55 running high boost.
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      02-20-2016, 05:33 PM   #30
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Originally Posted by PDU View Post
If your wondering about the Huracan and the mods. The description on the video explains all. Not sure how much more real anything in this video can get? :
Thanks for the clarification. I stand corrected. It's just that the Huracan is pretty fast out the box.

Did the Huracan driver let off then?
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      02-20-2016, 05:34 PM   #31
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Quote:
Originally Posted by allthatisntnow View Post
For what its worth, the only forged component of the N54 BMW listed in the technical manual was the crank. Pistons and rods were never mentioned bar to say they had been modified to withstand higher torque. People can take from it what they will.

"Pistons and rods

As with the cylinder head, the piston designs differ between engines. The N54 uses a special piston for compatibility with the direct injection system. The piston crown is modified to meet the mixture formation requirements.
The N51 engine uses a lower compression ratio and accordingly uses a different piston design. The N52KP uses the same design as the N52 engine.
The connecting rods on all of the NextGen6 engines have been stiffened with a thicker beam on the rod. This design has also been in production on the N52 since 6/06.

Crankshaft

The cast iron crankshaft is retained for the N52KP and N51. To accommodate the increased power output of the N54, the crankshaft is forged steel."


I know its been beaten to death, but I'm sure they'd have jumped on marketing the pistons and rods if they had been forged like they did with the crank.

But yeah, a forged piston and rod set would be a wise investment on an N55 running high boost.
So both N54 and N55s have forged cranks, correct?

Doesn't the S55 have uprated internals?
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      02-20-2016, 05:42 PM   #32
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Quote:
Originally Posted by Mywifes335 View Post
So both N54 and N55s have forged cranks, correct?

Doesn't the S55 have uprated internals?
"The crankshaft of the N55 is of lightweight design, at 20.3 kg it’s approximately 3 kg lighter than the crankshaft in the N54 engine.
The crankshaft is made from cast iron (GGG70). The counterweights are arranged asym- metrically. There is no incremental wheel installed on the crankshaft. The timing chains are mounted by means of an M18 central bolt."

That is the standard N55 variant. The one in the M235i does have a different crankshaft part number which has lead people to assume it could be forged. But there is no official confirmation to this. Either way, the N55 has proven itself to be an extremely robust engine with stock internals as evidenced by the pure stage 2 builds forum members have been running for 1000s of miles without issue.

The S55 is a fully forged engine.
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      02-20-2016, 06:19 PM   #33
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Quote:
Originally Posted by allthatisntnow View Post
"The crankshaft of the N55 is of lightweight design, at 20.3 kg it’s approximately 3 kg lighter than the crankshaft in the N54 engine.
The crankshaft is made from cast iron (GGG70). The counterweights are arranged asym- metrically. There is no incremental wheel installed on the crankshaft. The timing chains are mounted by means of an M18 central bolt."

That is the standard N55 variant. The one in the M235i does have a different crankshaft part number which has lead people to assume it could be forged. But there is no official confirmation to this. Either way, the N55 has proven itself to be an extremely robust engine with stock internals as evidenced by the pure stage 2 builds forum members have been running for 1000s of miles without issue.

The S55 is a fully forged engine.
How interchangeable are the S55 internals? Or should I start pulling Johnny Trans out of M4s and M3s and do a full motor swap?

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      02-20-2016, 08:30 PM   #34
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Quote:
Originally Posted by Mywifes335
Quote:
Originally Posted by allthatisntnow View Post
"The crankshaft of the N55 is of lightweight design, at 20.3 kg it’s approximately 3 kg lighter than the crankshaft in the N54 engine.
The crankshaft is made from cast iron (GGG70). The counterweights are arranged asym- metrically. There is no incremental wheel installed on the crankshaft. The timing chains are mounted by means of an M18 central bolt."

That is the standard N55 variant. The one in the M235i does have a different crankshaft part number which has lead people to assume it could be forged. But there is no official confirmation to this. Either way, the N55 has proven itself to be an extremely robust engine with stock internals as evidenced by the pure stage 2 builds forum members have been running for 1000s of miles without issue.

The S55 is a fully forged engine.
How interchangeable are the S55 internals? Or should I start pulling Johnny Trans out of M4s and M3s and do a full motor swap?

The S55 has the same exact bore and stroke IIRC so I couldn't imagine why the rotating assembly wouldn't be able to swap over to an N55. But no one will ever know until someone takes the plunge!
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      02-21-2016, 03:00 AM   #35
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Its with zf8 or manuel?
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      02-21-2016, 03:31 AM   #36
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Quote:
Originally Posted by Mywifes335 View Post
How interchangeable are the S55 internals? Or should I start pulling Johnny Trans out of M4s and M3s and do a full motor swap?

They should be fairly interchangeable, as BMW GENIUS mentioned, both engines share the same stroke and bore dimensions. S55 higher redline being a byproduct of the forged rotating assembly rather than wider bore/shorter throw. No one has done that to my knowledge, but 3rd party aftermarket components would probably be much better value for money. I can't see BMW S55 components being very competitive on the price front.

If you found a written off M3/4 with salvageable internals, the engine swap would be the worthwhile route rather than a component grab as labour for an engine rebuild would be higher than a swap anyway.

But using a turbo of the OPs size on an N55 will have to constitute some form of upgrading. I don't think a stock N55 would be that god-tier in terms of prolonged reliability running one of those. Plus the trans is probably less robust than the engine too - i.e it will encounter slip long before any rod failure occurs. But I'm sure Enzo will have supporting mods to accompany.
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      02-21-2016, 06:50 PM   #37
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Quote:
Originally Posted by Mywifes335 View Post
Thanks for the clarification. I stand corrected. It's just that the Huracan is pretty fast out the box.

Did the Huracan driver let off then?
Looks like he punched it thinking he would pass, realized he couldn't and let off. I had ZERO idea about the miscount until after I got home and reviewed the video. We even stopped and talked and during the conversation he didn't contest what I thought at the time to be a legitamite win. I posted it anyway for people to get the idea of how a stock frame upgraded turbo can perform with proper fueling.

Don't want to derail OP's thread which from the looks of it seems very promising!

Good luck on the new development!
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      02-28-2016, 10:58 AM   #38
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Have new news😉😛??
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      03-01-2016, 07:48 AM   #39
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Enzo Performance

We are cranking away guys, sorry for the slow updates. I will get some pictures up this week.
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      03-01-2016, 08:42 AM   #40
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Sorry if this has been covered but are you guys working on something for the M2? The above mentioned issues would seem to be mitigated (somewhat) by the n55/s55 hybrid internals would they not?
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      03-01-2016, 09:06 AM   #41
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Quote:
Originally Posted by jasonheaddinG View Post
Sorry if this has been covered but are you guys working on something for the M2? The above mentioned issues would seem to be mitigated (somewhat) by the n55/s55 hybrid internals would they not?
Hello Jason,

We absolutely have the M2 in mind. The N55 exhaust manifold bolt pattern should be the same which makes fitment of our kit possible.
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      03-01-2016, 02:05 PM   #42
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Originally Posted by Info@EnzoPerformance View Post
Hello Jason,

We absolutely have the M2 in mind. The N55 exhaust manifold bolt pattern should be the same which makes fitment of our kit possible.
awesome‼️ I will keep you guys in mind, I planned on keeping everything pretty much stock engine wise but that never works.....

I remembered reading about the gains you made with the 235 a while ago and was pretty impressed‼️
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      03-02-2016, 09:12 AM   #43
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Originally Posted by jasonheaddinG View Post
awesome‼️ I will keep you guys in mind, I planned on keeping everything pretty much stock engine wise but that never works.....

I remembered reading about the gains you made with the 235 a while ago and was pretty impressed‼️
We will be here The M2 has plenty of room to grow tune wise. Feel free to drop me an email chris@enzoperformance.com

Cheers
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      03-07-2016, 12:53 PM   #44
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Enzo Performance

Some updated components on the list. More boost requires more cool air, we fabbed up this monster for added efficiency. Also we have decided to go with Syvecs for engine management which allows us to have full control of boost, timing, traction etc.

Name:  Syvecs-test.png
Views: 2877
Size:  2.04 MB

Name:  Intercooler-for-Matt-Hollis-N55-Big-Turbo-_0000_9D6A0036.png
Views: 2821
Size:  1.55 MB

Name:  Intercooler-for-Matt-Hollis-N55-Big-Turbo-_0002_9D6A0025.png
Views: 2925
Size:  2.59 MB

Name:  Intercooler-for-Matt-Hollis-N55-Big-Turbo-_0001_9D6A0039.png
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Size:  1.40 MB
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