yO

have a uk spec 89 535i and looking into turboing the m30 so naturally i have questions.

basically im looking to push 300bhp from the m30 lump. Im looking to build a reliable, usable 300hp engine for my trailer queen can this be done?

im a fabricator by trade so making the manifolds and piping is not an issue, but i need more info on the technical side of forced induction on this engine.

from wat ive read my standard internals should be ok for this, and i have thot i may be able to utilise the intercooler piping from a 525 tds (i have one and its 2'' piping, and obviosly designed around a 6cylinder e34 too) does that sound feesable?

what cr does my engine run as standard i forget, will i require a new head gasket to address cr for turboing??

also i think bosch green injectors would be best for this, am i right?

management wise wats my options? standard? chip? megasquirt? most chips seam to raise rpm limit im not so keen for a straight6 to do so.

many thanks for any questions u can answer!! never turbod a car before so learning as i go here.

yO

have a uk spec 89 535i and looking into turboing the m30 so naturally i have questions.

basically im looking to push 300bhp from the m30 lump. Im looking to build a reliable, usable 300hp engine for my trailer queen can this be done?

im a fabricator by trade so making the manifolds and piping is not an issue, but i need more info on the technical side of forced induction on this engine.

from wat ive read my standard internals should be ok for this, and i have thot i may be able to utilise the intercooler piping from a 525 tds (i have one and its 2'' piping, and obviosly designed around a 6cylinder e34 too) does that sound feesable?

what cr does my engine run as standard i forget, will i require a new head gasket to address cr for turboing??

also i think bosch green injectors would be best for this, am i right?

management wise wats my options? standard? chip? megasquirt? most chips seam to raise rpm limit im not so keen for a straight6 to do so.

many thanks for any questions u can answer!! never turbod a car before so learning as i go here.


If your motor is in good runnign shape the HG should not be an issue although it does not hurt to refresh it :D
2" is small for that motor on is tubing
stock cr is 9.0.1 excellent for boosting the M30:buttrock
for 300 rwhp the stock injectors are ok for 9-10 psi
management wise for the budget use go M/s....for complete control
I use DTA

ah ive spent ages looking at ur car!!!

quality build, how much more is required for 350 then? sorry just trying to work out wats doable for me!!

ok so standard injectors will run at 10psi thats good to know.


ok so maybe i use the tds tubing as template for 2.5/3'' tubing thats no problem.

thanks for ur help any other tips? thanks for leting me pick ur brain!!

ah ive spent ages looking at ur car!!!

quality build, how much more is required for 350 then? sorry just trying to work out wats doable for me!!

ok so standard injectors will run at 10psi thats good to know.


ok so maybe i use the tds tubing as template for 2.5/3'' tubing thats no problem.

thanks for ur help any other tips? thanks for leting me pick ur brain!!

get an adjustable fuel regulator....
make sure you run NGK plugs...:buttrock

I am running split second 4"MAF and FTC-1 piggyback for fuel/timing control. 42# injectors and a MLS I ran 24 PSI. The FTC-1 was fairly simple to wire and tune.