M10 turbocharing

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#1
M10 turbocharging

Can the M10 4-cyl be turbocharged or supercharged. If so, is it worth doing? Thanks. [scratch]
 
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epj3

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#3
Yes it can, and it is worth it. Extremely easy to fab everything up yourself, it'll last forever too. You can pretty much use any turbo you want which means cheap cheap cheap. Probably a little cheaper to do FI on an M10, get the ECU mapped and everything, than it is to do an engine swap to something like an M50 or S50.

There are people who get an easy 200+ rwhp out of an M10!! That's more than the E36 m3 stock (to the wheels anyways) M10 is the bulletproof 4 cylinder, as the m30 is the bulletproof 6 cylinder (of that era anyways).



That's from a guy's turbo'd M10. That's WHP as far as I know.
 

epj3

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#6
hatchman088 said:
it ownt be cheap but its possible, and for the price it would cost i would suggest an engine swap if you can do it
That dyno - it cost the guy no more than 2k to do the entire thing, including intercooler and all.
 
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#7
I am all for Turbo charcghing an M10. Someday I would like to turbo one of two M10 engines I have sitting in my shop.

Bmw did turbo charge a 2002 with an M10 2.0 in 1974. If you could find that exhaust manifold it would make things easier, since the manifold is meant for a turbo.

I would also use an engine from a 1977-79 320i. 1979 was the last production year of the 2.0 M10, after that they only made the 1.8. And those years of a m10 also has a double row cam timing chain instead of a single chain. Also use a good aftermarket fuel injection system like the Motec or similiar brands.

The bottom end of the M10 is really strong. If you start building serious horsepower and boost you will probably want to beef up the bottom end. If you want to go real radical you can cut the 8 counter weights off the crankshaft, have it re-balanced, through some after market connecting rods in it, and then it should handle a lot of boost and power.

Just my opinions. I want to play with an M10 someday when I got the money. Be fun to have an old school 8 valve 4 cylinder bmw blow away the new rice rockets.
 
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#10
I had a header on my last 318i, and bigger injectors, and a K&n air filter... that car ran real good.

You will need to replace the header unless it was designed for a turbo. Headers wont stand up to the massive amounts of heat generated by the turbo. I have seen headers on small block chevies turn red just from a person trying to get there truck out of the mud. Granted they were racing there engines for minutes on end... but it was still cool to see the headers turn that bright red/orange color. THis truck had no turbo on it either, just a naturally aspirated 350 v8.

You are also going to have to find were you can run a pressurized oil line from the engine to the turbo. Turbos have to have lubrication. As I said BMW did make some factory 2002 turbo's, so that leads me to believe there are ports on the engine somewhere to run oil to the turbo. I just dont know where they are at.
 
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#13
A subaru WRX apparently...JapCrap. Its the factory unit in japan market STi's. Its an $1,100 turbo for a fairly decent price...just dont wanna waste $$ on something that wont work...
 


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