Thread: What is octane? KR? Explained here.

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  1. #61 Re: What is octane? KR? Explained here. 
    Because Wet Leaves Hippo Machine's Avatar
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    Quote Originally Posted by 01gtprocket View Post
    Aboubt a week ago I see a no name truck pump gas at the cheveron . the same truck pumped at ampm... Then the very same day see him at the texaco.. I think gas is gas..
    This isn't true. Unless all of those places were independent, they couldn't be getting the same gas, plus there wouldn't be enough in one tanker to fill three gas stations...

    Each company (i.e. Chevron) refines their own oil, adding different detergents etc. Many people believe Chevron has better gas then other companies as well.

    Plus if the truck was "no name" how would you know it was the same one...


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  2. #62 Re: What is octane? KR? Explained here. 
    GTX Level Member tod1d's Avatar
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    is KR an issue for n/a engines?

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  3. #63 Re: What is octane? KR? Explained here. 
     

  4. #64 Re: What is octane? KR? Explained here. 
    GXP Level Member Tuner-Extraordinaire's Avatar
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    Quote Originally Posted by Hippo Machine View Post
    This isn't true. Unless all of those places were independent, they couldn't be getting the same gas, plus there wouldn't be enough in one tanker to fill three gas stations...

    Each company (i.e. Chevron) refines their own oil, adding different detergents etc. Many people believe Chevron has better gas then other companies as well.

    Plus if the truck was "no name" how would you know it was the same one...
    No.
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  5. #65 Re: What is octane? KR? Explained here. 
    The Blue One blueguy's Avatar
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    Quote Originally Posted by tod1d View Post
    is KR an issue for n/a engines?
    I had 8* of KR from the factory running on 87 octane, on a stock car with an intake/catback...which really do nothing but add noise.
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  6. #66 Re: What is octane? KR? Explained here. 
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    i've seen 16-17* on my n/a with 87.
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  7. #67  
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    Quote Originally Posted by Nixon View Post
    No.
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  8. #68  
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    Quote Originally Posted by DoubleBlown View Post
    i've seen 16-17* on my n/a with 87.
    Timing advance?

    I saw a 22-24 wot with 2* kr with headers on 94 octane. Go crappy 3800's.
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  9. #69 Re: What is octane? KR? Explained here. 
    The Blue One blueguy's Avatar
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    36* Timing with stock manifolds...

    And 91?

    Wheeeeeeeeeeeeeeeeeeeeeeeeee
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  10. #70 Re: What is octane? KR? Explained here. 
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    teh how?

    more importantly: teh why?
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  11. #71 Re: What is octane? KR? Explained here. 
    The Blue One blueguy's Avatar
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    11.8-12.0:1 AFR.

    It's a N/A motor.

    Mike has close to the same timing with a leaner AFR.
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  12. #72 Re: What is octane? KR? Explained here. 
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    Quote Originally Posted by matt5112 View Post
    Timing advance?

    I saw a 22-24 wot with 2* kr with headers on 94 octane. Go crappy 3800's.
    16-17* of kr
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  13. #73 Re: What is octane? KR? Explained here. 
    The Blue One blueguy's Avatar
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    Which is...possible?
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  14. #74 Re: What is octane? KR? Explained here. 
    GTX Level Member tod1d's Avatar
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    I'm going to install 180 t-stat and plog this weekend to see if that drops the KR. I see 5* of kr when speeding up. Overall just not fast enough with my mods and hope these new ones make a difference.

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  15. #75 Re: What is octane? KR? Explained here. 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    180ยบ is a waste of time and 10 bucks.

    Stock is perfectly fine.

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  16. #76 Re: What is octane? KR? Explained here. 
    GXP Level Member Tuner-Extraordinaire's Avatar
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    I ran 12.7 AFR and 35* WOT with no KR on 87 when i took the S/C belt off

    Low compression FTW.
    Whine with your Cheese?
    Stock+Self Tuned. Going for low 14's everyday.
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  17. #77 Re: What is octane? KR? Explained here. 
    The Blue One blueguy's Avatar
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    Quote Originally Posted by tod1d View Post
    I'm going to install 180 t-stat and plog this weekend to see if that drops the KR. I see 5* of kr when speeding up. Overall just not fast enough with my mods and hope these new ones make a difference.
    Are you running 87 still?
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  18. #78 Re: What is octane? KR? Explained here. 
    GTX Level Member tod1d's Avatar
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    thats what the pcm is tuned for

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  19. #79 Re: What is octane? KR? Explained here. 
    The Blue One blueguy's Avatar
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    No...pcms are tuned for higher octane. Go try 91 or higher. See if the knock goes away.
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
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  20. #80 Re: What is octane? KR? Explained here. 
    SE Level Member ms3206's Avatar
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    How much KR is considered bad? At WOT on the highway I have 6* of KR. Should I be concerned by this? 05 GTP 3.4 pulley, CAI, tuned pcm, colder plugs, and 180* tstat
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