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  1. #26
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    Is this really the same exact engine? No physical differences?

  2. #27
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    Click here to enlarge Originally Posted by BlackJetE90OC Click here to enlarge
    Is this really the same exact engine? No physical differences?
    Nothing in a press release or report states otherwise... it really is somewhat hard to believe.

  3. #28
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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Am I the only one concerned that eventually the different between a BMW 320, 325, 330, 335, will just be what software BMW puts on it? I knew it would head this direction. F'ing turbo bull$#@!.
    good for people that knoww stuff like this

    as long as the base modcel is really cheap, there's absolutely no reason to get the top one lol

  4. #29
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    I just thought of this though. BMW will most definitely have a much more strict warranty policy. So a lot of people probably wouldn't be getting tunes out of fear.
    Honda CBR 1000RR, Superbike Supply, Arrow, HRC, BMC, Lee's Cycle, Galfer, EBC, Revzilla, AXO, Dainese, Scorpion Helmets

    Honda Grom, most fun you'll ever have on 2 wheels.

  5. #30
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    For those wondering why BMW doesn't remove the turbos to lower cost:

    In non-turbocharged form, this motor wouldn't make close to what it is making in the 320i. It would require a lot of changes to make a motor designed to be turbocharged make a decent amount of power in NA form. This adds to the R&D costs of a car that BMW plans to sell (relatively) cheap. It would also mean that the engine would be different to produce, adding to the cost of manufacturing. Also, car manufacturers have to get the engine approved to sell. A different engine means a different approval. However, if it's the same engine then it should fall under the N20 umbrella and not cost them anything more to approve for sale. At least that's my understanding of it.

    Finally, still being turbocharged with great margins to add power, the 320i is a prime candidate for BMW to release a power kit or whatever it is they're calling it now. $1200-$2000 or so to add anything from 20-40 hp would be my guess. It wouldn't cost them more than 30 minutes on one of their coding machines.

  6. #31
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    Click here to enlarge Originally Posted by Brey335i Click here to enlarge
    the 320i is a prime candidate for BMW to release a power kit or whatever it is they're calling it now
    Yep, another money grab.

  7. #32
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    Believe it or not, it appears that the N20 in 20i's and the N20 in the 28i's are somewhat different. I was looking for tunes in that market, and it seems that tuned 20i cars can't even reach the stock 28i cars. Smaller turbo maybe?

  8. #33
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    Click here to enlarge Originally Posted by Sorena Click here to enlarge
    Believe it or not, it appears that the N20 in 20i's and the N20 in the 28i's are somewhat different. I was looking for tunes in that market, and it seems that tuned 20i cars can't even reach the stock 28i cars. Smaller turbo maybe?
    But why doesn't BMW state that? Or why can't we figure this out?

  9. #34
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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    But why doesn't BMW state that? Or why can't we figure this out?
    No clue. But these cars entering the US market is a good thing, unlike European tuners, people like Terry can tell us what's going on with these engines.

  10. #35
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    We'll find out. Right now, all info points to the same thing. If it is, well then, wow.

  11. #36
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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    It didn't and doesn't though. When I had my M3 with bolt ons there wasn't any N54 on pump gas anywhere near it. So this "spanked" comment is stupid.
    Maybe back in the day, but today N54's are running 450whp with bolt-ons, so I'm afraid your FBO M would indeed be spanked. e85 is pump gas.
    700 and change

  12. #37
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    Click here to enlarge Originally Posted by The Ghost Click here to enlarge
    Maybe back in the day, but today N54's are running 450whp with bolt-ons, so I'm afraid your FBO M would indeed be spanked. e85 is pump gas.
    Ya these days maybe with E85 but not straight 91 octane and that still isn't running with evenly a modded boosted S65 so...

  13. #38
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    Looks like I found my next DD when the fusion dies
    Click here to enlarge
    ESS 6XX kit

  14. #39
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    2 out of 2 members liked this post. Reputation: Yes | No
    Well ho may concern, the 320 no20 hás a different engines and piston rather than 328 n20
    the compress ratio in 28 n20 is lower than 20n20.due this reason the 28 could run with more turbo booster psi.

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    Click here to enlarge Originally Posted by Weyne Click here to enlarge
    Well ho may concern, the 320 no20 hás a different engines and piston rather than 328 n20
    the compress ratio in 28 n20 is lower than 20n20.due this reason the 28 could run with more turbo booster psi.
    Please show the specs and details where you got this from?

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    1 out of 1 members liked this post. Reputation: Yes | No
    F30 328i has N20B20 engine. For a first time this type of motor was introduced in 2011 on a BMW X1. 328i has four cylinder turbocharged engine with an amazing direct injection fuel system of BMW TwinPower turbo technology. N20 has optimized VANOS variable camshaft timing and Valvetronic system. The engine block is made by aluminium which makes it lighter than the classic old steel one. From 2011 to now BMW offer N20B20 engine in four of their models: BMW 328i (F30), BMW Z4 sDrive28i, BMW X1 xDrive28i and BMW 528i (F10). This are some stock details around N20:


    Cylinder’s diameter : 84 mm
    Stroke in the cylinder: 90.1 mm
    Compression ratio: 10.7
    Volume of engine: 1995 cc (~ 2.0L)
    Power: 180 kW (245 hp)
    Max power in: 5500 rpm

  17. #42
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    There are 2 different 320i N20 engines
    Different regions will get different ones.


    The "low compression" version is very similar to the 328i except for the Turbos
    The standard version has a different head for higher compression and different turbos.

  18. #43
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    Thinking about getting one. 36mpg...

  19. #44
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    different diff and different Gearbox to 328i
    Also 28mm drive shafts against 35mm 328i shafts
    Brakes are smaller too

  20. #45
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    PN for 320i propshaft w/automatic gearbox:
    26 11 7 609 365
    PN for 328i propshaft w/automatic gearbox:
    26 10 7 632 653


    The diffs are definitely different cos the final drive ratio is different.

  21. #46
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    Click here to enlarge Originally Posted by Weyne Click here to enlarge
    There are 2 different 320i N20 engines
    Different regions will get different ones.


    The "low compression" version is very similar to the 328i except for the Turbos
    The standard version has a different head for higher compression and different turbos.
    Yes but where is the source for this info?

  22. #47
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    BMW oem maintenance manual,if you have aces for those Manuel ,you could find your self

  23. #48
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    Click here to enlarge Originally Posted by Weyne Click here to enlarge
    BMW oem maintenance manual,if you have aces for those Manuel ,you could find your self
    So post a pic or scan?

  24. #49
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    1 out of 1 members liked this post. Reputation: Yes | No
    Click here to enlarge O NOOOO I just baught my $52k 328 xi Click here to enlarge Click here to enlarge

    lol but nah on a serious note there are a lot of ppl that will buy the car and tune it right of the bat, rimz drops, u know more show custom appeal for those I guess the 320 is a great starting point cause u dont have to pay for things u gonna change anyways ... then there ppl like me where I will change things on da car but slowly and way down the road so for me having all those things of da start kinda works out better ...

    overall I'm sure there few more things involved then just tuning and at the end of the day if u start adding up all the options and standard things on both cars the prices should come pretty close to each other so I doubt anyone will have regrets going 1 way or the other just a matter what u lookin for out of the car ...

  25. #50
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    Click here to enlarge Originally Posted by pkdesigns Click here to enlarge
    Click here to enlarge O NOOOO I just baught my $52k 328 xi Click here to enlarge Click here to enlarge

    lol but nah on a serious note there are a lot of ppl that will buy the car and tune it right of the bat, rimz drops, u know more show custom appeal for those I guess the 320 is a great starting point cause u dont have to pay for things u gonna change anyways ... then there ppl like me where I will change things on da car but slowly and way down the road so for me having all those things of da start kinda works out better ...

    overall I'm sure there few more things involved then just tuning and at the end of the day if u start adding up all the options and standard things on both cars the prices should come pretty close to each other so I doubt anyone will have regrets going 1 way or the other just a matter what u lookin for out of the car ...
    Welcome. You should start a thread on your car.

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