325i turbo conversion

Discuss general engine, turbo and supercharger conversions in this section

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BimmerBoi
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Mon Apr 09, 2007 7:38 pm

whats involved and has anyone carried this conversion out?

is it a case of bolting a turbo on with the matching manifold, drill/tap oil return to the block and lower the compression of the engine with uprated head gasket?

any advice/links would be great :D
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blingsta
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Mon Apr 09, 2007 10:36 pm

Theres a few of us on here that have done this... oil feed from a T piece where oil pressure switch is, oils return drill and tap return pipe.... manifold to suit turbo and management system... I/C from a volvo fits well too... pm me your e-mail addy for pics.. :D
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BimmerBoi
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Tue Apr 10, 2007 9:04 pm

what sort of bhp figures do you chaps get from this conversion? what sort of budget would i be looking at to go turbo?

and lastly does the compression need to be lowerd? thanks :D
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blingsta
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Tue Apr 10, 2007 9:54 pm

If youve got the later engine then no lowering of the comp is needed, just the oversized H/G from bmw's would be enough.. BHP depends on your setup/turbo... mine hasnt been on R/R yet but was 200bhp with 240lb ft torque with the smaller turbo i had... :D
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Tue Apr 10, 2007 10:00 pm

It's difficult to compare the results we've all had from our various setups as we've all gone about it in such a different way.

For example, my setup makes 240lbft of torque, same as blingsta's, but also makes 270bhp which is quite a difference.
325i Twin Turbo (until 10am 01/12/07 :( )

www.air-in.co.uk free M20 exhaust and inlet flange
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blingsta
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Tue Apr 10, 2007 10:07 pm

strange that is !!! curious what my new figures will be though once mapping is complete
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BimmerBoi
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Tue Dec 30, 2008 9:48 pm

did you get yours mapped blingsta?
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1SXCBM
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Wed Dec 31, 2008 12:22 am

blingsta could you send some pictures to Mikool-Wetdriftaz@hotmail.com please? cheers :D
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