Modern BMW 3-Series turbo inline-6 power for an older 3-Series

[torreira]

Pictrures and. video below
LINK: http://www.bimmerboost.com/content.p...p-with-I-Drive

[ST1G]

He couldn't get a steering wheel that hasn't been in an accident?

[Julien]

so freakin' cool

[Roysneon]

It's cool, but to me that's more of a chassis swap. When you move all the wiring and everything related to it to a new car, that's not so much what I call an 'engine swap'. Still really cool to see the engine sitting in the bay, but if that's what it takes to make this work I'd rather just keep my e30 an e30 and put an s54 in it.

[F34R]

Chassis swap aside...the n55 swap is perfection. Light and can make more power than the s54 with just a tune. Some nut will pave the way for a e30 swap with proper management.

[Dozyproductions]

what's the weight compared to s5x?

[CorvallisBMW]

n55s are amazing, but i'd rather have the n20. It weighs less and still makes more hp and torque stock than a tuned s52.

[F34R]

what's the weight compared to s5x?

The N54 is the twin turbo predecessor to the N55 single turbo(twin scroll design). The n55 weights 45ish lbs less than the N54 with the heavy cast manifold for the twin setup. The twin scroll makes the same amount of power as the twin turbo setup and with turbo mods it was making over 400hp while racing for the South African team.

N54 weighs in at 430lbs so the N55 is roughly 385lbs and the N20 is 304lbs

[Dozyproductions]

thanks f34r. Not bad numbers, and the n20 even better. I'm guessing a chassis swap would be required for that to happen?

[Wanganstyle]

The N54 is the twin turbo predecessor to the N55 single turbo(twin scroll design). The n55 weights 45ish lbs less than the N54 with the heavy cast manifold for the twin setup. The twin scroll makes the same amount of power as the twin turbo setup and with turbo mods it was making over 400hp while racing for the South African team.

N54 weighs in at 430lbs so the N55 is roughly 385lbs and the N20 is 304lbs

N54 twin turbo manifolds are very light.

They integrate the turbo housing;

Both turbochargers and exhaust manifolds of a n54 probably don't weight much more than 50 lbs.

I've had a set at my place- I'm sure someone has a set hanging out and can just weigh them.

As for power both are great; N54 makes over 450rwhp on stock turbochargers and fuel with downpipes and a boost up / remap


As far as the age old twin vs single turbo debate. ...

Oem twins is killer. I've had the same engine (2JZ) in NA, single turbo, twin turbo.

Parallel Twin turbo is the best all round powerband

[mrcheezle19]

I would love a n54 swap. JB4 and a a downpipe with new exhaust and you'd have a rocket. Hell do the RB turbos and then you'd really be flying. Someone really needs to make a path for these swaps.

[F34R]

N54 twin turbo manifolds are very light.

They integrate the turbo housing;

Both turbochargers and exhaust manifolds of a n54 probably don't weight much more than 50 lbs.

I've had a set at my place- I'm sure someone has a set hanging out and can just weigh them.

As for power both are great; N54 makes over 450rwhp on stock turbochargers and fuel with downpipes and a boost up / remap


As far as the age old twin vs single turbo debate. ...

Oem twins is killer. I've had the same engine (2JZ) in NA, single turbo, twin turbo.

Parallel Twin turbo is the best all round powerband

All the information I gathered was from a 1 series forum. Owner weighed the setups and gave the weight difference. Also info on the twin scroll power band vs the laggy twin turbo setup. That is why BMW went to a twin scroll/single turbo. Proven to make the same power with just a single turbo and twin scroll and proven to make a ton of power with a turbo upgrade and running stock management with a tune for the larger components.

N55 is the better engine over the N54, has a better power band, less lag and better economically.

Speculating vs their info you're just shooting from the hip.

That is why supra guys ditch two turbos in favor for a larger single turbo.

[3vilE30]

N55 is the better engine over the N54, has a better power band, less lag and better economically.

Not to mention the n55 is more advanced than the n54. N55 has direct injection and valvetronic while the n54 has neither. The only reason why there aren't many n55's make n54 power is tuning directed injection and valvetronic efficiently.

But we all know the real winner here.... N52>>>
;)

[Wanganstyle]

All the information I gathered was from a 1 series forum. Owner weighed the setups and gave the weight difference. Also info on the twin scroll power band vs the laggy twin turbo setup. That is why BMW went to a twin scroll/single turbo. Proven to make the same power with just a single turbo and twin scroll and proven to make a ton of power with a turbo upgrade and running stock management with a tune for the larger components.

N55 is the better engine over the N54, has a better power band, less lag and better economically.

Speculating vs their info you're just shooting from the hip.

That is why supra guys ditch two turbos in favor for a larger single turbo.

I don't think you actually read what I was trying to say: Have you ever touched the parts with your own hands?

****I had a pair of n54 twin turbos and exhaust manifolds on my shelf;
the total weight was not much more than 50 lbs for it all.***

The N54 turbines are very trick; extremely light weight compared to a 2JZ-GTE twin turbo setup

***(the 2j had traditional Iron cast manifold and bolt on iron cast turbochargers; the 2jz-GTE oem setup was about 80 lbs - I purchased 4x used sets to get 1x good pair of twins)***

N54 turbines with integrated hot sides

You can see that the exhaust manifold is actually tubular welded steel with a engineered heat shield



in 2009 I had a car with a 2JZ engine; this is the engine famous in MK4 supra Twin Turbo.
I drove it daily with both Twin turbo and Single turbo; I liked twin turbo (parallel) more than the large single.

[nando]

neat, but why? wouldn't it literally be cheaper to just buy an E9x 335i?

and automatic? ugh.

lol at the steering wheel - typical HakkenTT. I also like the smashed strut tower, and god knows what else crap he did to make that all fit together.