[Misty]

been reading around bpc may be releasing a turbo kit? i read its for the n52 does that mean the n51 is left out?

[NeurotoxicSpork]

Were probably not left out, our engines are basically the same except our N51s have a lower compression ration and will probably take boost even better than the n52s.

[mmmnot]

Originally Posted by NeurotoxicSpork

Were probably not left out, our engines are basically the same except our N51s have a lower compression ration and will probably take boost even better than the n52s.

people haven't learned from the super charger drama, eh? there's one born everyday.

[Tom Droze]

Originally Posted by mmmnot

people haven't learned from the super charger drama, eh? there's one born everyday.

There are two of us born everyday, and the drama you speak of turned out to be non-supercharger related.

[sirantsE90]

Originally Posted by mmmnot

people haven't learned from the super charger drama, eh? there's one born everyday.

I'm with you dude. Makes no sense when bmw made a turbo variant capable of 450 going bpu. I'd understand if bmw never made the n54/55 but NA peeps needs to enjoy the motor for what it is.

Then again I love people with the time and balls fabricate and tune a new turbo setup.

Happy tuning all

[NeurotoxicSpork]

Personally, I'm completely happy with what my car is. Just stating that the n51 probably won't be left out. When I feel like going fast, thats what my 20 year old AMG is for.

[E91 M Sport]

Originally Posted by mmmnot

people haven't learned from the super charger drama, eh? there's one born everyday.

Originally Posted by sirantsE90

I'm with you dude. Makes no sense when bmw made a turbo variant capable of 450 going bpu. I'd understand if bmw never made the n54/55 but NA peeps needs to enjoy the motor for what it is.

Then again I love people with the time and balls fabricate and tune a new turbo setup.

Happy tuning all

I'll go ahead and file these away for some future claimchowder

[ZeroSum]

n51 will not be left out.

[Torgus]

Originally Posted by sirantsE90

Makes no sense when bmw made a stock frame turbo variant capable of 500whp going bpu. I'd understand if bmw never made the n54/55 but NA peeps needs to enjoy the motor for what it is.

This.

[Torgus]

Originally Posted by sirantsE90

Makes no sense when bmw made a stock frame turbo variant capable of 500whp going bpu. I'd understand if bmw never made the n54/55 but NA peeps needs to enjoy the motor for what it is.

This.

Not to mention it is highly unlikely the engine will handle boost half as well as the N54.

[Bob@BPC]

Just a show of hands, whos making over 400rwhp - 450rwhp (running less than 22psi) on 93 pump gas with out a turbo(s) upgrade or additional fuel system with out running meth or a single turbo with a piggy back and having to run a "backend flash" on a n54? BC this can be done with a turbo kit on a stock NA engine and not have to worry about finding e85 or filling up a meth tank or having to piggy back on top of a fuel system and on a tune setup.

[Torgus]

Originally Posted by Bob@BPC

Just a show of hands, whos making over 400rwhp - 450rwhp (running less than 22psi) on 93 pump gas with out a turbo(s) upgrade or additional fuel system with out running meth or a single turbo with a piggy back and having to run a "backend flash" on a n54? BC this can be done with a turbo kit on a stock NA engine and not have to worry about finding e85 or filling up a meth tank or having to piggy back on top of a fuel system and on a tune setup.

I do and so do plenty of others. What is wrong with a back end flash? It's free I mean you do have to tune a car somehow. 93 pump flash only stock turbos. No meth. No e85.

On top of that the n54 is built for boost. Hence why you see 600 and 700 whp on the stock block.

[Taskmaster]

I'm more of a N/A guy myself, but to each their own.

[tdavis42]

I will say I am really interested to see how far these guys can push this car!

I am not interested in a turbo version of my car but and interested in seeing someone else doing it.

Go BPC!

[Rodny]

I don't understand what's the deal with the 335 owners.
they keep posting on a 328 treads but is always negative comments.


Maybe there are some 328i owners posting negative comments on the 335 treads.

[E91 M Sport]

Originally Posted by Rodny

I don't understand what's the deal with the 335 owners.
they keep posting on a 328 treads but is always negative comments.


Maybe there are some 328i owners posting negative comments on the 335 treads.

Who knows man, maybe they secretly have a crush on us

[E91 M Sport]

Originally Posted by Torgus

I do and so do plenty of others. What is wrong with a back end flash? It's free I mean you do have to tune a car somehow. 93 pump flash only stock turbos. No meth. No e85.

On top of that the n54 is built for boost. Hence why you see 600 and 700 whp on the stock block.

He lies!!! Blatantly I might add

Engine/Drivetrain Modifications:
- Quaife LSD
- Spec stage 3+ clutch
- Spec single mass steel flywheel
- AquaMist HS4 Meth injection w/ Howerton TwinTank & dual .8 jets.
- MMP Inlet kit
- UUC SSK with DSSR
- 4 Bar TMAP sensor
- Helix front mount intercooler
- CPe charge pipe w/ Tial bov
- CPe catless 3 inch downpipes
- BMS oil catch can
- AR design stage 1 oil cooler
- Cobb AP
- Bren tune(switching to motiv)

[Torgus]

Originally Posted by Rodny

I don't understand what's the deal with the 335 owners.
they keep posting on a 328 treads but is always negative comments.


Maybe there are some 328i owners posting negative comments on the 335 treads.

Did I write something negative in this thread?

I agreed that had the n54 & n55 never been produced, turbocharging the N51/2 engines would make perfect sense, we also would of had it before now.

I mean go for it but you have to understand what you are getting: The n54 can sit at 450/500 all day long as it was built for boost. Is the NA engine going to handle double the hp & tq well as it was never designed for FI is a question to ask. At the end of the day you will be paying $$$ to only get to where a N54 is 100% stock with a tune on E85 also at the end of the day the N54 engine is the better building block for hp via FI. If you want to go FI there is an engine designed for FI from the factory for your chassis. This is my point that I was trying to get across.

Turbo charger the heck out of your N51/2 and enjoy.

Originally Posted by E91 M Sport

He lies!!! Blatantly I might add

Engine/Drivetrain Modifications:
- Quaife LSD
- Spec stage 3+ clutch
- Spec single mass steel flywheel
- AquaMist HS4 Meth injection w/ Howerton TwinTank & dual .8 jets.

- MMP Inlet kit
- UUC SSK with DSSR
- 4 Bar TMAP sensor
- Helix front mount intercooler
- CPe charge pipe w/ Tial bov
- CPe catless 3 inch downpipes
- BMS oil catch can
- AR design stage 1 oil cooler
- Cobb AP
- Bren tune(switching to motiv)

Which is installed but I am not spraying meth because I am not tuned for it. I can show you my blocked off bungs on my charge pipe if you would like or my empty meth tanks. My dyno in my sig is from over 3 years ago on pump 93. Plenty of people have made 400/450 on 93 and 1k in bolt ons(or less).

Here is one 424 whp / 503 wtq stock turbos pump 93 octane gas

[E91 M Sport]

Originally Posted by Torgus

Did I write something negative in this thread?

Bro it's very much implied from your statements but it's all good though, we're all enthusiasts here.

At the end of the day you will be paying $$$ to only get to where a N54 is 100% stock with a tune on E85...

100% stock with a tune on e85 Dude you're not "stock" when you change your fuel type and add a tune. Stock you're sitting at 300 whereas BPC is knocking on the 300 horsepower door normally aspirated.

[bimmerquick43321]

the difference is that a N52 turbo has a much better chance of keeping it's peak power for further in the rev range, than the n54/55 (with less torque down low as a trade off obviously)

I know you can change the turbo's on the N54 and make good power up top, but that's far from a few bolt-ons/tune...

Personally I was a non believer, but if a kit comes out that makes more than 400whp between 4000/4500 to 7000rpm for reasonable price and we see no reliability issues either, than sorry but would rather get that than an n54, unless as mentioned the turbos are upgraded on the n54

[harendre7201]

definitely interested in seeing how this pans out with BPC, was just getting around to the ESS SC but glad to see other options out there.
N51 guy btw

[Bob@BPC]

I can tell you this, we have had over 100 n54 cars hit the rollers here and I can tell you from what I have seen (SAE numbers or uncorrected) the 93 pump cars have yet to break 400rwhp. We built a rb turbo car not to long ago, on 15lbs of boost it made 420rwhp SAE on 93 through an auto. What we are trying to do is fill a void in the market for the N52 (which BTW has a FAR superior head design over the N54,S55, and so on) build something THEY WANT and not you, the n54 owner.

One last note, for those who want a cheap forged bottom end, the N52 head might swap onto the N54 short block we have a N54 long block to test.