View Poll Results: Which lobe separation?

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  • 112 LSA

    5 71.43%
  • 114 LSA

    2 28.57%
Results 1 to 8 of 8

Help me decide?

This is a discussion on Help me decide? within the Internal Engine forums, part of the LSx Technical Help Section category; OK, I decided on getting a cam, however I can't really decide between 224/224 .581/.581 lsa ??? or 228/228 .581/.581 ...

  1. #1
    Leaving for Lackland soon
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    2000 Z28 M6

    Help me decide?

    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!
    Last edited by foshizl; 02-08-2008 at 04:31 PM.

  2. #2
    Junior Member
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    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

  3. #3
    Leaving for Lackland soon
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    thanks for that information, helps alot on the LSA... but now anyone think 224 or 228?

  4. #4
    Veteran 0rion's Avatar
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    98 Formula
    06 duramax

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

  5. #5
    member since may 2000 nhraformula's Avatar
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    black
    2000 nhra edition formula

    228/114
    2000 nhra edition formula
    a few bolt ons, 379 rwhp
    11.96 @113.25

  6. #6
    Member
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    NBM
    2002 Z28

    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.

  7. #7
    2 SS's are better than 1 Jays00ss's Avatar
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    NBM / Silver
    00 SS / 71 SS Elcamino

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

  8. #8
    Senior Member Bottesini's Avatar
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    2002 Z28 Camaro M6

    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.

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