[maxwell600]

I would think a TT I6 would have a bit more power than 300 stock. I would figure that the block itself is capable of 300hp with it being a 24 valve. Then with a twin turbo setup, push that total power to 400. What gives? Is the inline six less capable of power output than a V6 setup, with the focus being on strength of the block?

Love the N54 regardless!

[maxwell600]

Originally Posted by maxwell600

I would think a TT I6 would have a bit more power than 300 stock. I would figure that the block itself is capable of 300hp with it being a 24 valve. Then with a twin turbo setup, push that total power to 400. What gives? Is the inline six less capable of power output than a V6 setup, with the focus being on strength of the block?

Love the N54 regardless!

EDIT: Talking about stock from the factory :P

[Continue5]

Not sure if troll or heavy drug usage ..

[JStang]

[maxwell600]

Originally Posted by Continue5

Not sure if troll or heavy drug usage ..

Shall I explain?
Look at the V6 from lets say.... the new Mustang. 305hp. So technically speaking, it has more power at the flywheel than the 335i's N54 which is 335i (not mentioning power curves and such.) Now I know the power on the N54 can simply be raised by raising the boost, but lets pretend for the moment that the engine was without turbos, essentially an N52. My point being, why does the engine not produce more power? I understand again the difference in size, one being a 3.0, the other being a 3.7 (mustang), but does that really make that much of a difference?

[Rotorocious]

[JStang]

Originally Posted by maxwell600

Shall I explain?
Look at the V6 from lets say.... the new Mustang. 305hp. So technically speaking, it has more power at the flywheel than the 335i's N54 which is 335i (not mentioning power curves and such.) Now I know the power on the N54 can simply be raised by raising the boost, but lets pretend for the moment that the engine was without turbos, essentially an N52. My point being, why does the engine not produce more power? I understand again the difference in size, one being a 3.0, the other being a 3.7 (mustang), but does that really make that much of a difference?

.7 Liters does make a big difference.

[maxwell600]

Originally Posted by Rotorocious

da holy spirit got her!

[Simple5]

Hrmmm...

[maxwell600]

Originally Posted by JStang

.7 Liters does make a big difference.

Thank you for the answer.

[techwhiz]

Complicated question.
Yes you could get 300HP from a N/A N54 if you had a different cam profile, etc.
The engine is tuned for long term reliability with the turbos.

You trade reliability for HP.
Also part of the 300HP-300 ft/lbs of torque, comes from the time of introduction.
When the 335i was introduced the M3 with the inline 6 only made 350 HP. Now if you are trying to sell a performance model (M3), you can't make the 335i faster can you?

So there are a variety of reasons why the 335 is 300/300. None of the reasons involve pure HP potential.

[maxwell600]

Originally Posted by techwhiz

Complicated question.
Yes you could get 300HP from a N/A N54 if you had a different cam profile, etc.
The engine is tuned for long term reliability with the turbos.

You trade reliability for HP.
Also part of the 300HP-300 ft/lbs of torque, comes from the time of introduction.
When the 335i was introduced the M3 with the inline 6 only made 350 HP. Now if you are trying to sell a performance model (M3), you can't make the 335i faster can you?

So there are a variety of reasons why the 335 is 300/300. None of the reasons involve pure HP potential.

Holy shit thank you for the awesome answer! Didn't even think about the cam profile.
Too bad forums aren't like reddit, being able to upvote posts/comments..

[Continue5]

170 bhp without turbos.. that's a long ways away from 300, without turbos I just don't see it.

[maxwell600]

Originally Posted by Continue5

170 bhp without turbos.. that's a long ways away from 300, without turbos I just don't see it.

Exactly. That's my point. Why that low? But it was answered. Cam profile and such.

[mrbillytalent]

OP's gonna flip when he see the "miniscule" out put of the v12 twin turbos...

[maxwell600]

Originally Posted by mrbillytalent

OP's gonna flip when he see the "miniscule" out put of the v12 twin turbos...

But I'm not talking about the N74 lol.

But yes I agree, should be a 8-900hp engine all fucking day.

[Continue5]

For one the cylinder head flows poorly in contrast to say a s54 from the e46 m. It also doesn't have Valvetronic because of the turbo which would make a difference in a NA environment. I'm sure there are other reasons and such but not it would not be worth it at all.

[nitehawk]

Originally Posted by techwhiz

You trade reliability for HP.
Also part of the 300HP-300 ft/lbs of torque, comes from the time of introduction.
When the 335i was introduced the M3 with the inline 6 only made 350 HP. Now if you are trying to sell a performance model (M3), you can't make the 335i faster can you?

So there are a variety of reasons why the 335 is 300/300. None of the reasons involve pure HP potential.

Bingo, Probably the biggest reason of them all. Factory detuned, same story when you look at a 911 vs Cayman.

[Lunatic Fringe]

That and there's only so much a standard 3-series chassis can handle. Tune only 335i's overwhelm the factory suspension big time. If i could do it again, I would have started with mods to improve handing and then added power. Did it the wrong way round, but you live and learn

[NoTempoLimitN54]

Originally Posted by nitehawk

Bingo, Probably the biggest reason of them all. Factory detuned, same story when you look at a 911 vs Cayman.

And just like the Cayman (up until recently anyway) we don't get a limited-slip differential either... Just to make sure the higher profit M3/911 stays king.

The N20 is a 2.0 liter I-4 single turbo and produces 240 HP. So that implies that the N54 3.0L TT I-6 is capable of producing 360 HP with stock levels of reliability.

[Jeff@TopGearSolutions]

They could make 300 HP out of this engine N/A. That's not a hard feat.

They wanted the twin turbo's so you could have maximum torque at 1400-1800 RPM. You can't do that without turbo's or a huge V8.

Keeping the displacement low and adding turbo's they were able to achieve huge torque numbers at very low RPM. while keeping good gas mileage without going to a V8.

[Bluesun]

Originally Posted by Lunatic Fringe

That and there's only so much a standard 3-series chassis can handle. Tune only 335i's overwhelm the factory suspension big time. If i could do it again, I would have started with mods to improve handing and then added power. Did it the wrong way round, but you live and learn

This doesn't get talked about enough in the context of tunes. Now that I'm running an E85 mix, the rear suspension just sorta gives up under heavy accel. I'm seriously considering my next mod being suspension upgrades.

On that note, does anyone have a recommendation on where to start with suspension upgrades?