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  #6289  
Old 05-21-2014, 07:55 PM
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What did you do to your WK today?

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Originally Posted by Strongjeff View Post
Diesel burns slower. Last time I checked 91 burns hotter then 87, its why you make better power and fuel mileage on a higher octane then a lower one. Burns hotter and gets a better burn over a lower rated fuel.

Higher octane needs more heat to light on fire. It doesn't necessarily burn hotter. As gas is compressed it heats up. When 87 is highly compressed it will explode before the spark plug goes off, a phenomenon known as detonation, that's when a higher octane is used. But to get any benefit out of it that fuel needs to be compressed more so that it can be burnt at a hotter temperature. On a stock motor, the 87 octane gas is not being compressed or "heated" enough to make it pre ignite and detonate.


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  #6290  
Old 05-21-2014, 09:40 PM
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Originally Posted by greenwayer View Post

Higher octane needs more heat to light on fire.

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Basically it burns hotter cuz of a higher flash point. And higher octane is designed to reduce knock not detonation.
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  #6291  
Old 05-21-2014, 09:46 PM
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Re: What did you do to your WK today?

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Originally Posted by Strongjeff View Post
Basically it burns hotter cuz of a higher flash point. And higher octane is designed to reduce knock not detonation.

Detonation is what occurs when the fuel is ignited before the spark plug fires. Knocking is the pinging sound produced by detonation. They are somewhat synonymous.


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  #6292  
Old 05-21-2014, 09:52 PM
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Re: What did you do to your WK today?

I used all of them. 87-89-91 and honestly 91 takes longer then what 87 does and 89 maybe a little longer. For me 91 has been great cause I have the bigger tires and makes it a bit heavier I get better gas milage when on cruise control . yeah when I get another vehicle I'll deff get a tuner with the 91 so it WILL be better
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  #6293  
Old 05-21-2014, 09:53 PM
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Quote:
Originally Posted by greenwayer View Post

Detonation is what occurs when the fuel is ignited before the spark plug fires. Knocking is the pinging sound produced by detonation. They are somewhat synonymous.

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Ehhh...okay touche bro. You got me there lol. So lets both agree 91/93 is better then 87 and that knock/detonation is bad. I hate it when it pulls timing cuz of it....
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  #6294  
Old 05-21-2014, 09:56 PM
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Originally Posted by Alex47er View Post
I used all of them. 87-89-91 and honestly 91 takes longer then what 87 does and 89 maybe a little longer. For me 91 has been great cause I have the bigger tires and makes it a bit heavier I get better gas milage when on cruise control . yeah when I get another vehicle I'll deff get a tuner with the 91 so it WILL be better
Longer to do what? But yeah a tune goes a long way. 91 is better suited in a higher comp engine then ours. 9.7 to 1 comp in our motors so in all honesty id say 89 untuned is best to run. With a tune go full 91 as the timing is adjusted to make use of the better fuel.
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  #6295  
Old 05-21-2014, 10:13 PM
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Not to change the topic but you guys need to go see the new godzilla movie. Epic awesomeness is epic. This version more then makes up for the failed 1998 movie lol.
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  #6296  
Old 05-21-2014, 10:14 PM
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Re: What did you do to your WK today?

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Originally Posted by Strongjeff View Post
Not to change the topic but you guys need to go see the new godzilla movie. Epic awesomeness is epic. This version more then makes up for the failed 1998 movie lol.
Not going to lie. I enjoyed the old version
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Old 05-21-2014, 10:15 PM
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Re: What did you do to your WK today?

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Originally Posted by Strongjeff View Post
Not to change the topic but you guys need to go see the new godzilla movie. Epic awesomeness is epic. This version more then makes up for the failed 1998 movie lol.
I haven't watched it but looking forward to it! Also xmen should be great! But Godzilla first will be AMAZING.
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  #6298  
Old 05-21-2014, 10:22 PM
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Originally Posted by Alex47er View Post

I haven't watched it but looking forward to it! Also xmen should be great! But Godzilla first will be AMAZING.
It is. I already have it. They stuck with the original design of godzilla but the cgi makes him look so much better
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Old 05-21-2014, 10:35 PM
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What did you do to your WK today?

Quote:
Originally Posted by Strongjeff View Post
It is. I already have it. They stuck with the original design of godzilla but the cgi makes him look so much better

There's a new Godzilla movie? Didn't know that, sorry not much into sci-fi


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  #6300  
Old 05-21-2014, 10:38 PM
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Re: What did you do to your WK today?

Quote:
Originally Posted by Alex47er View Post
I used all of them. 87-89-91 and honestly 91 takes longer then what 87 does and 89 maybe a little longer. For me 91 has been great cause I have the bigger tires and makes it a bit heavier I get better gas milage when on cruise control . yeah when I get another vehicle I'll deff get a tuner with the 91 so it WILL be better
Well you shouldn't really be getting better mpg with 91 vs 89 or even 87. You sure you ain't running a bit rich?



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