1998 E36 328i - bore out

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  1. 1998 E36 328i - bore out 
    #1
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    E36_turbo's Car Details
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    Hi all,
    I am thinking of boring out my cylinder from 2.8 to 3.2 and then fit the evos piston and ring, would this idea work ? does the crankshaft and ... different on 3.2?

    would boring out the engine causes the nikasil layer to go away? if yes do u know the block material , is it aluminum ? i know the later models are cast iron ( as i understood it is a small layer that has been applied inside the block but not sure if my block is nikasil or the layer inside it)

    Would you think this idea would work at all ?

    does any one know how much will it cost for bore out?

    Thanks
     
     

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    I'm a bit behind the times on this one but i would imagine you would have to fit new oversized piston liners to do it.Your best plan would be to speak to an engine recon firm to see how far you can re-bore it to
     
     

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    Best idea would be to swap to a 325 M50 iron block which can be bored.
    For evo pistons, you'd need to check the wrist pin, as I have a feeling you might not find a rod that would be the correct size at the wrist and big end to suit.

    M54 3.0 Crank fits though.
     
     

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    so if i bore it out to 3 , the pistion and rods from m3 should fit?

    do u know if my whole block is nikasil or just a layer of nikasil is on the internal combustion cube. i am confused by the whole nikasil thing

    I am not sure what material is my block made of
     
     

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    Quote Originally Posted by E36_turbo View Post
    so if i bore it out to 3 , the pistion and rods from m3 should fit?

    do u know if my whole block is nikasil or just a layer of nikasil is on the internal combustion cube. i am confused by the whole nikasil thing

    I am not sure what material is my block made of
    Yours is not Nikasil its after 1998 BUT one way to check...

    http://www.bimmerforums.co.uk/forum/...ost782108.html


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    You can go to 3l with m54b30 crank rods and pistons. Piston rings are rather expensive though and you have to be hoping the engines current bore still looks good.
    Any s50/2 stuff you'd want to use needs to be from the US or South Africa
    European s50 engines are completely different
    How much money do you have for the project and what do you want to achieve out of it? is it a race engine or street, na or forced.
    Cheaper just to put in a euro m3 engine.
     
     

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    Quote Originally Posted by kiwi328 View Post
    You can go to 3l with m54b30 crank rods and pistons. Piston rings are rather expensive though and you have to be hoping the engines current bore still looks good.
    Any s50/2 stuff you'd want to use needs to be from the US or South Africa
    European s50 engines are completely different
    How much money do you have for the project and what do you want to achieve out of it? is it a race engine or street, na or forced.
    Cheaper just to put in a euro m3 engine.
    Not South Africa-only the US......South Africa has the same engine a the Euro cars
     
     

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    Quote Originally Posted by Devil318is View Post
    Yours is not Nikasil its after 1998 BUT one way to check...

    http://www.bimmerforums.co.uk/forum/...ost782108.html
    mine is , all cars after week 6 or something of 1998 were not nikasil, mine is week 4 or 5 and checked the block against the image, it is nikasil.

    what i don't understand is that whether the whole block material is nikasil or just a layer which is applied to the bore.
    if it is the latter case then bore out should fix the issue and the engine will not longer be nikasil
     
     

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    Quote Originally Posted by kiwi328 View Post
    You can go to 3l with m54b30 crank rods and pistons. Piston rings are rather expensive though and you have to be hoping the engines current bore still looks good.
    Any s50/2 stuff you'd want to use needs to be from the US or South Africa
    European s50 engines are completely different
    How much money do you have for the project and what do you want to achieve out of it? is it a race engine or street, na or forced.
    Cheaper just to put in a euro m3 engine.
    well my point is to make the car stronger for track days and driffting . I am considering the bore out as it is safer than turbo charge .

    what do you think if i rebuild my head and reduce the compression ratio and then fit a turbo which should take me to around 320 or higher?

    would rebuilding a head be difficult and costly in ur view?

    what are the places that does custome gasket in the UK, does any know of any close to london or inside the london and how much they charge?

    I also appreciate if anyone has any figures for bore out cost
    thanks
     
     

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    You don't need custom HG, they already make mass-produced thick HG's for turbo'ed E36. You should easily see 350bhp from the engine, if you turbocharge it.

    But TBH, I don't think turbocharging it would be the best way to make it stronger. It will be more powerful, but defo not stronger than a N/A engine.

    Easiest way to gain some extra power would be to put the M54 3.0 internals into a 2.5 iron block. No boring needed, 84mm pistons in both engines.

    Then port and polish the head, M50 intake, free flow exhaust and remap, and you should be good for 250-260bhp.

    You'll have a stronger, bigger engine for a fraction of the price of turbocharging. Obviously, not as powerful, but not as expensive to build and run, either.
    There are only two products required to make the universe work properly: Duct tape and WD40. 


    If it moves (and it shouldn't): duct tape. 
If it doesn’t move (and it should): WD40.

    Everything else is just stuff.
     
     

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