328i cam upgrade

[e21Mark]

I am using an M52/2.8 engine (single vanos) taken from an e36 328i and want to release some more power. I already have an M50 inlet and six branch exhaust manifold but also plan to fit camshafts. I know the US M3 cams work but I have opted for new cams from Cat Camshafts instead.

I am just unsure which is the best option to go for? The first spec below is the stock cam, with the 3 alternatives from Cat listed after.

I would like to achieve an output of 240 - 250bhp if possible.

Any help and/or advice would be much appreciated.

O.E.M.

230 / 231°

195 / 195°

9.00 / 9.00mm

0.15 / 0.45mm


1) 1304211

240 / 240°

203 / 203°

9.25 / 9.25mm

0.35 / 0.65mm
sport



2) 1304212

250 / 250°

212 / 212°

9.55 / 9.55mm

0.60 / 1.15mm
sport



3) 1304213

257 / 257°

220 / 220°

10.15 / 10.15mm

1.00 / 1.55mm
sport


http://www.catcams.co.uk/acatalog/BMW_E36320i__325i__523i__528i_Single_VanosM52_Engine.html

[Dave0321]

Holy thread revival batman!

Did you end up picking up a set of these cams?

[e30m3Mark]

I did. E21 has been and gone since then though.

[Dave0321]

I see the relevant name change!

What cam set did you get and how did they behave?

Was the idle still good afterwards?

[e30m3Mark]

Dave0321 said:

I see the relevant name change!

What cam set did you get and how did they behave?

Was the idle still good afterwards?

I just opted for fast road, lightened flywheel and 6 branch manifold. Idle was perfect and engine was nice and responsive. Well worth the effort.