all you m20 guy, take a look

[kyleN20]

http://cgi.ebay.com/ebaymotors/E30-BMW-M20-turbo-manifold-adaptor-304-stainless_W0QQcmdZViewItemQQcategoryZ33742QQitemZ8 036539715QQrdZ1

looks like about the simplest way to turbo a m20, who knows how good the flow through stock m20 manifolds are, but it doesent look to tough.

kyle

[E34-520iSE]

Look good - we'd have to move the battery tray though! Aren't E30 exhaust flanges 3-bolt, and E34 flanges 4-bolt? Might be something to check out before ordering!

Cheers,

Shaun

[nariusb]

http://cgi.ebay.com/ebaymotors/E30-BMW-M20-turbo-manifold-adaptor-304-stainless_W0QQcmdZViewItemQQcategoryZ33742QQitemZ8 036539715QQrdZ1

looks like about the simplest way to turbo a m20, who knows how good the flow through stock m20 manifolds are, but it doesent look to tough.

kyle
He doesn't give any details like hp increase etc. I wonder if you'd loose the AC with the istall?

[kyleN20]

it doesent increas horsepower, the turbo you mount to it adds horsepower. this is a way you not mess with your old dual manifolds and have a turbo bolt up to it, not only that, but have it be a top mount turbo, as for the e30-e34 bolt up issues, i thought that all m20 shared the manifolds, weather it be a 3er or a 5er. if i had a e30 or a e34 and i had serious plans to turbo it but was on a slight budget id buy it, hell even if i wasent on a budget i think id rather do this then have the turbo so inaccessable, but i dont know much about the turbo game so i could be wrong.

kyle

[kyleN20]

isnt your bat. under the rear seat?

[E34-520iSE]

i thought that all m20 shared the manifolds, weather it be a 3er or a 5er.

kyle Yeah I thought that too. I've just binned an E30 M20B20 manifold and it had three bolts on on the outlet flange. An E34 M20B20 manifold has four bolts.

HTH,

Shaun

[Torque]

isnt your bat. under the rear seat?no. all m20s and 91 m50s had it under the hood.

[nariusb]

So with 1989 525i I would have to relocate the battery under the seat? Also this would abstruct the access to oil filter

[E34-520iSE]

You'll still be able to get to the oil filter, can't see any problems there!


Cheers,

Shaun

[Zeuk in Oz]

stock m20 manifolds

My manifold is 1 piece for all 6 cylinders and has a 4 bolt flange.

Would probably have to change the manifold.

[kyleN20]

wow, i dident know there were so many variations, i know that my old e30 had the same dual manifold, and the parts car was the same deal, and i think the a 1990 525i i testdrove had dual manifolds, i assumed this would work, maybe only for e30s, but i would take it for a project e30 maybe

[M20Turbo]

Not sure if you would get the air flow you would want with this setup. I do like the turbos accessability on top, I would be curious to see all hooked up.

[kyleN20]

you ought to try it, what kind of manifold are you running now?

[mancini_mark]

How about a supercharger?

http://www.machschnell.com/superchargers.html

Rare, but simpler. Not cheap, but has MAF conversion & I get to keep my headers!

mark

[kyleN20]

for that money id rather have TCD do it, cost about the same, more horsepower
http://www.turbochargingdynamics.com/tcd_registry_BMW.htm
heres a vid of it running
http://video.google.com/videoplay?docid=-618633171053590874&q=tcd

[M20Turbo]

kyleN20, Sorry for the delayed responce, went skiing. Korman did the turbo on my car and I have one piece exhaust. I tried to find a pic of it off the car but the best I could fine was an 4 cylinder exhaust from Korman. http://www.kormanfastbmw.com/turbos.htm
BTW I did have to move the battery to the rear seat. Because of where the turbo attaches below the exhaust, I had to move the oil filter as well. I would be interested to see how the 535 comes out. Keep me posted!