M52 Cat cams - high lift cams - m52 tuning

[jimbom30cab]

There is a lot of options here:

http://www.catcams.co.uk/acatalog/BMW_E ... ngine.html


I want something which idles ok and gives some extra push up the rev range.

It's for everyday weekend type fun driving, not the track

which would anyone recommend ?

Should i also then get a re-map, i've got a Danthe ECU at present?

Thanks M52 gods

[BMW_E30vert]

How much do a pair of these cams cost? ive got a m54b30 inlet and s50us exhaust cam but have just picked up a pair of second hand shricks so the others will be up for sale soon, cant help with a recommendation but here are some standard bmw cam specs:

M52 inlet- 228*@9mm lift
M52 Exhaust-228*@9mm lift

S50/52US inlet-252*@10.2mm lift
S50/52US Exhaust-240*@9.7mm lift

[jimbom30cab]

Thanks,

"m54b30 inlet and s50us exhaust cam"

that's a odd combo, i know nothing about these engines, is that a well known combo of cams?

thanks

[BMW_E30vert]

It is an odd combo, not quite the m3 US cams but better than stock m52

This would be the spec with the said cams-

Intake- 240*@9.7 lift
Exhaust- 240*@9.7lift

[jimbom30cab]

thanks man, worth thinking about that

anyone else cam'd up an m52 ?

[pacerpete]

Don't bother Jim. I am guessing two cams will cost the thick end of a bag. You may gain 10 bhp @7000 along with a crap idle.

[jimbom30cab]

Thank Pete, am thinking that way also

I'll go on a diet to reduce some weight, be cheaper

[Cook318IS]

I went for american m3 S52 cams, managed to pick them up for about £300 - £350 if i remember correctly. The cost of cat cams or shrick put me off a little bit. I'd recommend a live map if you do get cams, I'll do mine if my exhaust ever stops blowing. If you do decide on cat cams i'm pretty sure rally prep are a dealer for cat cams (http://www.e30zone.net/modules.php?name ... le&u=25649 might be easier to phone them though)

[DanThe]

You would be much better off putting that grand towards a proper 3.0 build, which is a different animal altogether

[jimbom30cab]

Now you got me thinking there Dan, I remember you did that build recently, it was proper nice. Thanks. Do you remember the thread to wet my appetite

by the way, I'm going to get a team of crack test drivers together off the zone to do a e30 engine mod road test......basically me Phil and Rob. The line up is

2.7 m20
2.8 m52
3.5 m30

all have some off the shelf mods

top gear style write up with videos

[jimbom30cab]

Ok,daft question I know but can the m52 be live mapped, as I know the DME 1.3 can't which is an iterative read/write process