run a small turbo (cheap build) on standard management?

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  1. run a small turbo (cheap build) on standard management? 
    #1
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    just to throw an idea out there, a lot of people will say this is utterly pointless and you should just fit another engine but I'm thinking if I start out small I can then increase size etc as I go along so bear with me here.

    I have an M52 323i.

    I have seen some build threads to turbo these to some extent but most people are going in wanting big guns loads of power straight away.

    My question is, if i get a cheapo ebay exhaust manifold, cheapo ebay intercooler kit, would it be possible to run a small turbo, say at about 5psi on standard ecu with a remap?
    Cheers, Jay

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    #2
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    unfortunately the manifolds on ebay are for left hand drive
    you would have to modify it and as people have found out its not easy
     
     

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    A cheapo eBay exhaust manifold will not fit - they are for the LH drive market & take so much effort to modify - they are no longer 'cheapo'.
    There is no 'bolt-on' solution to turbocharging a RH Drive BMW e36 6 cylinder.
    In theory, yes; a low pressure turbocharger would at-least run on the standard ECU (probably not very safely) but the costs of fabricating everything else required is considerably more than you might think.
    So atleast £2-3k for a few more unreliable horsepower - not that appealing really...
    Sorry to piss on your parade...
     
     

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    ok so a custom turbo manifold, I know someone who can weld stuff like that so shouldnt be a bug problem, but also would you necessarily need an intercooler if only running low pressure turbo?? to be honest I would be looking at simply,
    turbo,
    manifold
    exhaust
    intercooler
    oil cooler for turbo
    and remap.

    In theory the standard engine/injectors and ecu should manage this yes?

    In theory running low boost this should be possible? power wise im not really looking at making mahoosive power as I can always upgrade as I go but if I can get a turbo working on the system even if it's only a 20bhp gain
    Cheers, Jay

    Siamoto copy air filter + cold air feed, 328 exhaust, 12" steering wheel,
    17" BBS Alloys, strut brace, lowered on Raceland coilovers
    Olypus HU CD Radio USB AUX SD card, Alpine rear 6x9's, Sony front 5.25's, Phoenix Gold 10" sub + SPLX Amp,
    Projector indicators, 6k angel eyes, 4300k dipped beam, SMD 3rd brake light, smoked repeaters and tail lights, SMD number plate bulbs, SMD courtesy lights
     
     

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    Strictly speaking you wouldn't need an intercooler - although i would recommend one (even at low boost)
    The costly bit will be the exhaust mainfold - then custom downpipe & the rest of the exhaust - as virtually all of this will have to be custom made.
    Probably wouldn't even need an additional oil cooler - depends really on what you plan to use the car for? But, you'll need to find an oil feed to the turbo & then a return into the sump.
    The charge piping from the turbo compressor to the inlet manifold, will all have to be custom made, the cost of these parts soon adds up (believe me, i've done it)
     
     

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    straight pipes with silicone bends is probably the easiest way and running low boost shouldn't have much issue with them popping off I would imagine will be ok from turbo to inlet. I'm looking at making it a slow project, stockpiling all the parts I can before I start putting it all together. What size turbo would i want, obviously it's a big engine, I've done a lot of work with this kind of thing as I had a 306 turbo diesel so I have basic knowledge.....
    Cheers, Jay

    Siamoto copy air filter + cold air feed, 328 exhaust, 12" steering wheel,
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    Olypus HU CD Radio USB AUX SD card, Alpine rear 6x9's, Sony front 5.25's, Phoenix Gold 10" sub + SPLX Amp,
    Projector indicators, 6k angel eyes, 4300k dipped beam, SMD 3rd brake light, smoked repeaters and tail lights, SMD number plate bulbs, SMD courtesy lights
     
     

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    Use whatever size turbo you like.
    If you're restricting the boost to about 5 psi then most 'chargers will deal with that; no problem.
    Basically, the bigger it is, the longer it'll take to spool up & give you the boost - so with your application smaller should be better (but it's not that simple.)
    I think theres a sticky thread by Boostist on here that explains turbo compressor airflow maps in quite a bit of detail - so that'll help you decide.

    This link article may help you decide too:
    http://www.motorsport-developments.c...AF240.tech.pdf

    How deep are your pockets? Holset turbos are pretty good value.
     
     

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    hmm well I've got together a small list of parts definitely needed, is there anything missing? more detail can be added later!

    Turbo manifold,
    turbo,
    oil feed/return lines,
    a downpipe,
    charge pipe
    wastegate,
    blow-off valve
    intercooler
    exhaust system,
    engine management, chipped/tuned on rolling road
    engine cooling, bigger rad + fans.
    Cheers, Jay

    Siamoto copy air filter + cold air feed, 328 exhaust, 12" steering wheel,
    17" BBS Alloys, strut brace, lowered on Raceland coilovers
    Olypus HU CD Radio USB AUX SD card, Alpine rear 6x9's, Sony front 5.25's, Phoenix Gold 10" sub + SPLX Amp,
    Projector indicators, 6k angel eyes, 4300k dipped beam, SMD 3rd brake light, smoked repeaters and tail lights, SMD number plate bulbs, SMD courtesy lights
     
     

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    You are underestimating a turbo build. Its taken me almost 6 months to get a manifold built which im not entirely happy with. You're also trying to turbocharge what is possibly the worst engine. If you want more power turbo an M50. If you're going to turbo it then go the whole hog with injectors and standalone ECU. You'll need an oil cooler as well.
     
     

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    Quote Originally Posted by B3 Drift View Post
    You are underestimating a turbo build. Its taken me almost 6 months to get a manifold built which im not entirely happy with. You're also trying to turbocharge what is possibly the worst engine. If you want more power turbo an M50. If you're going to turbo it then go the whole hog with injectors and standalone ECU. You'll need an oil cooler as well.
    that's all well and good but as I said, I'm looking to build a low pressure not really aiming at massive power but something as a base I can build on should I wish to. I've always wanted to turbo a 6pot and admittedly I don't have the best base but want to work with what I've got. if it blows I can look at an M50 then! More than anything else I want a project to keep me busy! the devil makes work for idle hands.
    Cheers, Jay

    Siamoto copy air filter + cold air feed, 328 exhaust, 12" steering wheel,
    17" BBS Alloys, strut brace, lowered on Raceland coilovers
    Olypus HU CD Radio USB AUX SD card, Alpine rear 6x9's, Sony front 5.25's, Phoenix Gold 10" sub + SPLX Amp,
    Projector indicators, 6k angel eyes, 4300k dipped beam, SMD 3rd brake light, smoked repeaters and tail lights, SMD number plate bulbs, SMD courtesy lights
     
     

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