turbocharging my e36 323 coupe m52b25

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  1. turbocharging my e36 323 coupe m52b25 
    #1
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    hi guys i have aquired a bmw 323 coupe on a p reg with the m52 b25 single vanos, it will be turning into a drift car but first i want to sqeeze more power from it, so i have decided to turbo it. (standard internals running 0.6-0.8bar)
    i have started collecting bits needed, so far i have a top mount turbo manifold and a hybrid t3 turbo (should be delivered next week), and i have ordered braided oil feed lines which should be here in the next couple of weeks

    But i am wondering how bigger intercooler i acually need? do i really need a big one (impreza fmic size) or would it be safer with a smaller one (ie a calibra turbo standard smic)

    i hope someone can help with this as i dont want to buy one and then have no use for it as im on a bit of a budget and dont really want to end up selling my 330d to fund it

    all help will be appreciated
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    Jackmcl's Car Details
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    Mitsubishi EVO intercoolers are generally quite inexpensive & easy to come by, would be perfectly adequate for the application that you're looking at. - If you can make it fit with the standard bumper?

    Is the top mount turbo manifold you've aquired specifically modified for the purpose?
    If it's the standard Log type manifold that you so often see for sale on eBay etc, then you may be dissapointed to find it'll most likely need some modification - most put the turbo into the cylinder head/valve cover as they're nothing more than an cheap built piece of kit for the American market (LH drive) and are meant to be bottom rear mounted (where the steering column is on RH drive models)
     
     

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    Quote Originally Posted by Jackmcl View Post
    Mitsubishi EVO intercoolers are generally quite inexpensive & easy to come by, would be perfectly adequate for the application that you're looking at. - If you can make it fit with the standard bumper?

    Is the top mount turbo manifold you've aquired specifically modified for the purpose?
    If it's the standard Log type manifold that you so often see for sale on eBay etc, then you may be dissapointed to find it'll most likely need some modification - most put the turbo into the cylinder head/valve cover as they're nothing more than an cheap built piece of kit for the American market (LH drive) and are meant to be bottom rear mounted (where the steering column is on RH drive models)
    ok mate il look out for one of those, im sure i can make it fit somehow and i bought the manifold from a mate who abandoned his project due to money probs, it does look like the £110 ebay ones, but i have a fabricating place about 3 miles from my house so if it needs to be modded thats no prob, il have to get it fitted asap as the turbo gets here to see if it fits and clears

    also just a quick question if you know about it, will my air mass meter be ok when running a turbo? or will that have to be upgraded?
     
     

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    Realistically you'll need a complete standalone engine management system - such as VEMS or similar.
    Running low boost it'll probably run atleast; but the fuelling will be all wrong - a big risk for the longevity of the engine.

    It's not as simple as bolting on a turbocharger and hey presto...

    Have a read through some of the other projects on this forum, there's a lot of info on there - much of the info is painfully intricate and may give you a bit of a headache!
     
     

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    I have had a word with my local tuning shop and they can map it so i wont need a standalone ecu which is good as i have no idea about them
     
     

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    Bit of an update i finally got my standard manifolds off after none of the bolts would budge, ended up chopping the old exhaust to wiggle them out.i have test fitted the new manifold and luckily it does just clear the steering joint but i do now need to get a adaptor fabricated to mount my turbo on as it needs to sit about 3" closer to the front of the car due to the size of the turbo.i will try get that made up tomorrow but i got a couple pics if the manifold fitted. Here they are
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    You do realise that you're going to be running circa 400 hp through standard management, it just wont work. AFM wont be good enough either.

    EBay manifolds are prone to cracking as well so i would look at reinforcing the welds.

    Are you lowering the compression ratio?

    Injectors?

    Oil drain?

    Top mount is not really a good idea for UK RHD cars
     
     

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    Quote Originally Posted by B3 Drift View Post
    You do realise that you're going to be running circa 400 hp through standard management, it just wont work. AFM wont be good enough either.

    EBay manifolds are prone to cracking as well so i would look at reinforcing the welds.

    Are you lowering the compression ratio?

    Injectors?

    Oil drain?

    Top mount is not really a good idea for UK RHD cars
    Yeah i know and im not expecting that with standard management but i want to get it done and once running i can do different management etc
    I am lowering compression with thicker headhasket
    Was looking to uprate injectors, fuel pump before getting mapped
    Oil drain? Do you mean the turbo oil return?
    And how come a top mount isnt good idea for rhd?
     
     

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    Sorry i misread that first bit mate. What management and afm options do i have? I have been told a standalone ecu but what would that entail? In wiring and complications
     
     

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    There physically isnt enough room unless you run without a headlight or remodel the arch. You maybe able to fit the turbo but what about the airfilter and any screamer pipes?

    Dont forget to brace the manifold/turbo.

    If you're looking for a cheaper engine management check out the WAR chip from Miller.
     
     

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