Help me decide?

**foshizl** · 02-08-2008, 03:19 PM

OK, I decided on getting a cam, however I can't really decide between 224/224 .581/.581 lsa ??? or 228/228 .581/.581 lsa ??? I am also torn between 112 and 114 lsa whats the difference... as far as drivability power and sound go?
any info would be great!

**Olde Skoole** · 02-08-2008, 04:11 PM

EFFECTS OF CHANGING LOBE SEPERATION ANGLE (LSA)

Tighten (smaller LSA number)/Widen (larger LSA number)

Moves Torque to Lower RPM/Raise Torque to Higher RPM

Increases Maximum Torque/Reduces Maximum Torque

Narrows Power band/Broadens Power Band

Builds Higher Cylinder Pressure/Reduce Maximum Cylinder Pressure

Increase Chance of Engine Knock/Decrease Chance of Engine Knock

Increase Cranking Compression/Decrease Cranking Compression

Increase Effective Compression/Decrease Effective Compression

Idle Vacuum is Reduced/Idle Vacuum is Increased

Idle Quality Suffers/Idle Quality Improves

Open Valve-Overlap Increases/Open Valve-Overlap Decreases

Closed Valve-Overlap Increases/Closed Valve-Overlap Decreases

Natural EGR Effect Increases/Natural EGR Effect is Reduced

Decreases Piston-to-Valve Clearance/Increases Piston-to-Valve Clearance

**foshizl** · 02-09-2008, 02:13 AM

thanks for that information, helps alot on the LSA... but now anyone think 224 or 228?

**0rion** · 02-09-2008, 02:30 AM

being an M6 car I'd do a 228 on a 112

**nhraformula** · 02-09-2008, 05:28 AM

228/114

**Jumper** · 02-09-2008, 05:53 AM

I have the 228r on a 112lsa , my car is an A4 and it drives great! You should have no problems being a M6 car. Just get a good tune and the car will drive fine.

**Jays00ss** · 02-09-2008, 06:01 AM

I would go 228 with a 113 if you are undecided.

**Bottesini** · 02-09-2008, 10:33 AM

Just throwing in another option I like my 226/228 with 112 very streetable in an M6 I don't think you will have any trouble with either of your cam choices and of the two I would pick the 228.