New 3.0 liter twin turbo in the E46?

[Matt986]

Does anyone see a reason why the new E90 twin turbo 3.0 liter engine thats going into the new 3 series coupe wouldn't fit into one of our better looking E46 models?

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[russ330]

They'd probably physically fit. Now getting the thing to work with the E46 is a whole different matter. Seems like a waste of money IMO. I'm sure the engine will be built on the edge of tolerances with very little to gain from an ECU that will be mission impossible to program.

'Sides the car's only 300 at the crank. You can get to that point with with a SC on your E46 and call it a day.

[redronin]

They'd probably physically fit. Now getting the thing to work with the E46 is a whole different matter. Seems like a waste of money IMO. I'm sure the engine will be built on the edge of tolerances with very little to gain from an ECU that will be mission impossible to program.

'Sides the car's only 300 at the crank. You can get to that point with with a SC on your E46 and call it a day.
:werd: or throw in an s54 (i use the words throw in lightly), at this point id be willing to bet its easier to get a hold of one of those than the new 335 engine.

[Oshin02]

Does anyone see a reason why the new E90 twin turbo 3.0 liter engine thats going into the new 3 series coupe wouldn't fit into one of our better looking E46 models?

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The twin turbo 3.0L engine that’s going in the E92 (coupe, not the E90 sedan) is the 3.0 from an E46 330i/ci. It's the same block/head but consists a lower compression (likely a thicker head gasket), a one stage intake manifold, and two sequential turbos along with there manifolds. If you really wanted to do the swap and had a 330i/ci, what you have to do is borrow those parts from the E92 along with the ECU. It would be a direct bolt up to the M54B30 motor mentioning that the twin turbo E92 motor is a N54B30.

[Activ3]

I was told that the turbos on the 335 motor are built into the manifold or something, so the only way to upgrade the turbos would be to chop them off, and have a special plate machined to mount a new one... The ECU will also be quite a problem, many companies had problems with MS45, which debuted in 04', imagine the difficulty of an 07' :yikes:

[dave12345]

its almost like they are building these cars so u CANT mess with the engine

[hammerfang]

its almost like they are building these cars so u CANT mess with the engine

thats probably true, bmw doesn't want to have to deal with warranty problems on a modded car, plus i hate to say it but the modders/tuners r not who bmw builds their cars for, its for the financially-well off individuals and these people really have no interest in modding their cars and hate it even more when they see a loud/flashy car wearing the same badge as them. so in the interest of the brand i can see it making perfect sense that bmw is trying to make it as hard as possible to mess around with the engine, thats just my opinion though

[arcticool]

thats probably true, bmw doesn't want to have to deal with warranty problems on a modded car, plus i hate to say it but the modders/tuners r not who bmw builds their cars for, its for the financially-well off individuals and these people really have no interest in modding their cars and hate it even more when they see a loud/flashy car wearing the same badge as them. so in the interest of the brand i can see it making perfect sense that bmw is trying to make it as hard as possible to mess around with the engine, thats just my opinion though

I agree that BMW will make it difficult- however I believe that this will nevertheless be the ultimate modders' car 1-2 years from now. The chip will be hacked and those turbos will be cranked up. Also, I would not bet that that engine is pushed to limits off the shelf, that's just not BMW style. They build em to last and with plenty of wiggle room. I'll bet this thing is *built* and can easily handle 400hp to the wheels. This will be the next 00-03 S4, just watch!

[arcticool]

thats probably true, bmw doesn't want to have to deal with warranty problems on a modded car, plus i hate to say it but the modders/tuners r not who bmw builds their cars for, its for the financially-well off individuals and these people really have no interest in modding their cars and hate it even more when they see a loud/flashy car wearing the same badge as them. so in the interest of the brand i can see it making perfect sense that bmw is trying to make it as hard as possible to mess around with the engine, thats just my opinion though

I agree that BMW will make it difficult- however I believe that this will nevertheless be the ultimate modders' car 1-2 years from now. The chip will be hacked and those turbos will be cranked up. Also, I would not bet that that engine is pushed to limits off the shelf, that's just not BMW style. They build em to last and with plenty of wiggle room. I'll bet this thing is *built* and can easily handle 400hp to the wheels. This will be the next 00-03 S4, just watch!

[Oshin02]

I was told that the turbos on the 335 motor are built into the manifold or something, so the only way to upgrade the turbos would be to chop them off, and have a special plate machined to mount a new one... The ECU will also be quite a problem, many companies had problems with MS45, which debuted in 04', imagine the difficulty of an 07' :yikes:

It would be easier to tune I would say. You can use such a thing as a piggy back ECU like the one from Apex'i called the SAFC. All that it does is change the air flow pulse that goes from the MAF to the ECU and tells it something different. If you take a FI car and mod it to boost a little more along with a little more fuel, its by far way easier to tune the FI for FI then a car that breathes naturally to force fed. I wish fanatics would research more on FI setups so the DIY's would awaken more......At least mechanically

[arcticool]

It would be easier to tune I would say. You can use such a thing as a piggy back ECU like the one from Apex'i called the SAFC. All that it does is change the air flow pulse that goes from the MAF to the ECU and tells it something different. If you take a FI car and mod it to boost a little more along with a little more fuel, its by far way easier to tune the FI for FI then a car that breathes naturally to force fed. I wish fanatics would research more on FI setups so the DIY's would awaken more......At least mechanically

Agreed. Probably 6 months after this thing comes out, there will be a GIAC X chip mod. Little more gas and crank up the turbos, all it takes is a chip. 50% more power for 500 bucks woohooooo!

[vmwerks]

mite46 will do it...

[nka203]

mite46 will do it...

haahha that guy's a god :bow:

[david05111]

BMW says that the 335 is more than capable of putting out higher numbers, they just said that they didnt have a transmission strong enough to handle the power in the standard 3 lineup.

[sheefo2k]

y go twin when u get get more power out of a single bigger turbo...

[arcticool]

y go twin when u get get more power out of a single bigger turbo...

Throttle response, and more low end grunt :thumbup:

[clean-m-tech330]

y go twin when u get get more power out of a single bigger turbo...


i would assume primarily for better driveability- with two turbos, probably sequential you get the low-end with one turbo and the higher end with the other.. just makes everything smoother- a larger turbo would be more ideal for a high horsepower car where low-end is sacrificed for a much stronger top end power band- just my thoughts...

[Oshin02]

I say that the E92 335’s will have a better market toward the tuner crowed then the M3’s will, due to it being offered force fed. It’s a new chapter which developed from the older brother 2002 tii’s……Can’t wait to see what the after market community will have planned for the 335’s…more technical modifications offered prior then what the E46’s had