Camshafts..

[spooner_dee]

Bmw has only one camshaft or two?

Which is better for aftermarket, One Designed with moderate duration (244 degrees) and lift (9.5)

Or Designed with moderate duration (252 degrees) and lift (10.2)

both are priced the same 749 on bavauto. whats the difference between the two, both promise better low end and top end power.

[Soldo]

if its DOHC, it means that there are TWO cams!
The E30's came with single cams sixes!

[spooner_dee]

Originally Posted by Soldo

if its DOHC, it means that there are TWO cams!
The E30's came with single cams sixes!

lol so what are e36 engines 97 328i?

[Soldo]

haha, they're Dual cam bro!

I'm pretty sure all BMW's went DUAL in the early-mid 90's!

[spooner_dee]

Originally Posted by Soldo

haha, they're Dual cam bro!

I'm pretty sure all BMW's went DUAL in the early-mid 90's!

great so thats like 1400-1500 for cams alone, lol what about the numbers i posted? anyone know what the deal is with that?

[Soldo]

haha, ya, cams are pricey, but remember you get 2 of them!

And if you've ever seen 6cyl cams they're HUGE, so you can sorta understand the pricing!

[fletch]

97 328i/328ic uses M52B28 engine and it's a DOHC
DOHC is more stable&reliable than SOHC but some Mercedes engine are SOHC for saving weight

following M52B28 is 1998+ version yours is 94-97 version which not much different..
Item/Measurement M52B28
Vehicle 328i
Number of Cylinders 6
Layout in-line in-line
Installation30° inclined right
Coolant liquid
Crankcase/Block Material aluminum
Crankshaft one-piece
Main Bearings 7
Weight (kg) 180
Valve Layout DOHC
Camshaft Drive simplex chain
Camshaft Bearings 7 each
Valves per Cylinder 4
Cylinder Center Distance (mm) 91
Displacement (liters) 2.793
Bore/Stroke (mm) 84/84
Stroke/Bore Ratio 1.0
Piston Speed (ms) 15.4
Valve Timing (IO/IC) 6°atdc/54°abdc
(EO/EC) 47°bbdc/17°atdc
At Valve Lift (mm) ER-ER
Valve Lift I/E (mm) 9.0/9.0
Connecting Rod Length (mm) 135
Connecting Rod Ratio r/l 0.31
Compression Ratio 10.2:1
Fuel Norm-Sup Plus LF
Power Output (bhp@rpm) 193/5500
Power per Liter (bhp/liter) 69.10
Power/Weight Ratio (kg/bhp) 0.93
Torque (mkg@rpm) 28.5/3500
Torque per Liter (mkg/liter) 10.22
Mixture Preparation fuel injection
Maker Siemens
Designation DME MS42.0
Ignition integrated
Ignition Advance map
Generator 12 V/1260 W
Supercharging - -
Miscellaneous Double VANOS, KD
Year of Introduction 1998

[propr'one]

Spooner D. luckly, you (and I) have m52's. Although i believe shriek makes aftermarket camshafts for our cars, they're pretty pointless. Get some s52 cams, and swap those in. I dont have them in my car, but from the reasearch i've done, i should. The s52 cams came on 96+ m3's. A lot of my owners crash their cars / upgrade their cams. They go for about 350 USD shipped on www.bimmerforums.com

fletch, how does a car built in 96/97 use a 1998 engine? does my 99 have a s54? cause that would be sweet

[spooner_dee]

Well im gathering a list of parts to upgrade along with the mother of all which is the supercharger.

The main engine list is as follows.

Underdrive pulleys

Fuel regulater

Cams

super charger which comes with injectors, software, intercooler, intake and all hardware.

remus exhaust, possible headers.

Install an aftercooler (goes on after supercharger and cools the air even more using water/antifreeze mixture along with air cooling)

My question is basicly are cams worth it? will i see or notice anything at all?

The main goal is to get a good boost of HP (hence the super charge) but stay reliable

[propr'one]

yes, get the s52 cams man