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most compression on pump gas?

Discussion in 'General Tech and Maintenance' started by SkyGuy, Feb 20, 2007.

  1. SkyGuy

    SkyGuy mankind can be stupid.

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    what is the highest compression i can go to and still run premium pump gas? ive heard everything from 11:1 all the way up to 13.5:1. nobody seems to have a clear answer.
     
  2. SkyGuy

    SkyGuy mankind can be stupid.

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    well ya i forgot to put in without your ecu changing your timing due to your engine knocking. but thanks for the response. i wasnt looking to go much higher then 11:1 but 11.5:1 is good for what ten ponies comparied to 11:1?
     
  3. powerdriverh22

    powerdriverh22 Senior Member

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    there are some running 12.5 on pump....but id say 12 is enough
     
  4. mac_24_seven

    mac_24_seven I trained Trogdor to pWn

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    The higher the compression, the better the tune you MUST have in order for it to run worth anything...

    Plus, the higher compression you have means shorter engine life.. And thatsnever a good thing.
     
  5. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    12.5:1 on 91 octane and 13.0:1 on 93 octane without pulling timing like an idiot- source: personal experience on the dyno and GOOD tuning.
     
  6. civicious

    civicious FüK-VTEC VIP

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    I was running 13:1 a couplea years ago on 93 without any problems other than my usual 'everything I touch dies'...


    it's all in the tune.
     
  7. civicious

    civicious FüK-VTEC VIP

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    wow, someone's cranky today.
     
  8. 97hatch

    97hatch ?

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    some one has been cranky for a few days now





    you can go 12.5 on 91 and 13-13.5 on 93 like calesta said im runing 13.5 on 93 as we speek
     
  9. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    I guess none of the people I've worked with have been professionals huh?
     
  10. 97CTR

    97CTR Senior Member

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    Nope Cal you don't know what you are talking about. You should have just let blanco build it for you over the net. He can read a manual better than anyone.
     
  11. turbo sol

    turbo sol I need some ligaments!!!

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    hahaha! hell yeah, that cat is mad smart...
     
  12. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    :shrug:
     
  13. turbo sol

    turbo sol I need some ligaments!!!

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    aww... you hurt his feelings...
     
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