what does everybody use for fuel 87-89-91-93-94
09-15-05, 01:21 AM
#52
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Originally Posted by homebrewer
The only way I can figure out this one is that your car's timing is advanced of the stock setting. But if that were the case, then you'd be detonating on 87 octane.
Consequently, I have to call baloney on your statement.
Another quick comment, its amazing how many people have accelerometers and dynamometers in stalled in their asses. The only valid way to test a power improving theory is to put it on a dyno and take a reading or take to to a 1/4 mile track.
There was another poster in another thread who stated he felt a 1 HP increase by doing something different with his car. I almost died of laughter.
Consequently, I have to call baloney on your statement.
Another quick comment, its amazing how many people have accelerometers and dynamometers in stalled in their asses. The only valid way to test a power improving theory is to put it on a dyno and take a reading or take to to a 1/4 mile track.
There was another poster in another thread who stated he felt a 1 HP increase by doing something different with his car. I almost died of laughter.
Im not claiming any HP gains. i havnt track tested it. very little is done to my car. intake exauhst, removed PS and AC.
Im just saying that when i have a full tank of 87, i have a hard time scurt'ing 3rd(few and far inbetween). Now when i run a full tank of 91, i can almost consistantly scurt 3rd. I just got 12 gallons of 112 today for 18 dollars. I will run my tank damn near dry, and pour all of that in. Perhaps there will be less power or maybe more. i will just have to wait and see.
Im just sayen what i feel. maybe its in my head, sure.. but if it is, i think im gunna run higher octane all the time because my head is making me drive better somehow- if im able to peel out in 3rd more consistantly, and it feels faster.
Like another poster said it feels as though it revs up quicker, and smoother. id have to agree with him.
09-15-05, 01:54 AM
#53
I am the stig.
Marshall Brain has the answers...
http://auto.howstuffworks.com/question90.htm
Non-turbo rotaries have a relatively low compression ratio which means they can use lower octane with less risk of detenation. Think of the lower octane not as cheaper, but as more volitile... and the differences between "regular" and "premium" gas are some additives and corporate marketing.
HSW also mentions heptane and octane, which have 7 and 8 carbon atroms chained together respectively. Heptane is volitile while octane is rather stable. The octane rating is an artifical scale that gives a "what if" presuming you had x% octane and y% heptane. 87 octane gas would be like running 87% octane and 13% heptane.
(Source: Paraphrased from memory, from Modern Marvels: Gasoline)
Here's a link to wikipedia.org on the subject.
http://en.wikipedia.org/wiki/Gasoline
-Twofer
http://auto.howstuffworks.com/question90.htm
The octane rating of gasoline tells you how much the fuel can be compressed before it spontaneously ignites. When gas ignites by compression rather than because of the spark from the spark plug, it causes knocking in the engine. Knocking can damage an engine, so it is not something you want to have happening. Lower-octane gas (like "regular" 87-octane gasoline) can handle the least amount of compression before igniting.
The compression ratio of your engine determines the octane rating of the gas you must use in the car... [meaning] ...a higher compression ratio and requires higher-octane fuel. [Taken a bit out of context... just read the whole article.]
The compression ratio of your engine determines the octane rating of the gas you must use in the car... [meaning] ...a higher compression ratio and requires higher-octane fuel. [Taken a bit out of context... just read the whole article.]
HSW also mentions heptane and octane, which have 7 and 8 carbon atroms chained together respectively. Heptane is volitile while octane is rather stable. The octane rating is an artifical scale that gives a "what if" presuming you had x% octane and y% heptane. 87 octane gas would be like running 87% octane and 13% heptane.
(Source: Paraphrased from memory, from Modern Marvels: Gasoline)
Here's a link to wikipedia.org on the subject.
http://en.wikipedia.org/wiki/Gasoline
-Twofer
09-15-05, 06:16 AM
#55
Lives on the Forum
Originally Posted by rx7kid4ever
did you ever use race gas????
if so you would no it smells like candy yes or no???it is the same thing for 86 race gas!!!!!!!!that is what i was saying 
Sorry, I call your BULLSHIT on "86 race gas" unless you can show proof.
I think the place selling you this crap is bending you over pretty good.
-Ted
09-15-05, 06:43 AM
#56
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Originally Posted by RETed
No, I don't use that ****, cause most of it is LEADED, and kills spark plugs and O2 sensors.
To me, it does not smell like "candy" - yes, I do no[sic] what race gas smells like.
Sorry, I call your BULLSHIT on "86 race gas" unless you can show proof.
I think the place selling you this crap is bending you over pretty good.
-Ted
To me, it does not smell like "candy" - yes, I do no[sic] what race gas smells like.
Sorry, I call your BULLSHIT on "86 race gas" unless you can show proof.
I think the place selling you this crap is bending you over pretty good.
-Ted
10-06-05, 05:27 PM
#60
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Originally Posted by kontakt
The NA was made to run 87 RON
Originally Posted by kontakt
which by linear approximation (can't find a formula) is about 83-84 AKI or R+M/2.
http://en.wikipedia.org/wiki/Linear_approximation
Dood if u use big werds like that then someday someone who really knows what it means is gonna pwn u.
10-07-05, 12:18 PM
#61
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Originally Posted by cardzrule
Where did u get that from?
linear approximation... WTF? lol
http://en.wikipedia.org/wiki/Linear_approximation
Dood if u use big werds like that then someday someone who really knows what it means is gonna pwn u.
linear approximation... WTF? lol
http://en.wikipedia.org/wiki/Linear_approximation
Dood if u use big werds like that then someday someone who really knows what it means is gonna pwn u.
Also I got that it's tuned for 87 RON from these boards.
10-07-05, 01:32 PM
#62
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Originally Posted by kontakt
I am someone who knows what the word means jackass.
Teh forumla is R+M/2 and even I can work that and Im a jackass like u say, so whats that make u? rotfl
BTW I aint had AP nothin
Originally Posted by kontakt
Also I got that it's tuned for 87 RON from these boards.
FYI thats not what teh manuel sez
10-07-05, 02:02 PM
#63
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Originally Posted by cardzrule
lol no you aint.
Teh forumla is R+M/2 and even I can work that and Im a jackass like u say, so whats that make u? rotfl
BTW I aint had AP nothin
Link?
FYI thats not what teh manuel sez
Teh forumla is R+M/2 and even I can work that and Im a jackass like u say, so whats that make u? rotfl
BTW I aint had AP nothin
Link?
FYI thats not what teh manuel sez
I can't link something I read a long time ago, search. Does the manual specifically state 87 R+M/2? if not, it's a Japanese car... they use RON.
Do I need to make you a graph?
Edit: The reason there isn't a formula that I could find to convert between the two is that one is Research value, the other Research + Measured / 2. In order to convert, you would need M, but you knew that, right?
Last edited by kontakt; 10-07-05 at 02:06 PM.
10-07-05, 02:08 PM
#64
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Originally Posted by kontakt
Does the manual specifically state 87 R+M/2?
https://www.rx7club.com/showpost.php...0&postcount=42
Originally Posted by kontakt
Do I need to make you a graph?
10-07-05, 02:12 PM
#65
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No, it means that whoever provided me with the information that it was tuned to 87 RON is stupid. It doesn't say anything about my calculus ability, which is up to par. And my knowledge of the term 'linear approximation' is also correct. Looks like the only thing that makes me stupid is that I occasionally repeat misinformation, which we're ALL guilty of.
10-07-05, 02:30 PM
#66
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Originally Posted by cardzrule
So if teh manuel does specifically state it does that mean ur the one who is stoopid? lol
https://www.rx7club.com/showpost.php...0&postcount=42
No thanks I dont need no graph to tell me what everybody knows cept 4 you lol
https://www.rx7club.com/showpost.php...0&postcount=42
No thanks I dont need no graph to tell me what everybody knows cept 4 you lol
10-07-05, 02:38 PM
#67
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Originally Posted by bcool
If you didn't speak like an incoheirent jackass, your arguments would seem a bit more competent.
so ur sayin I would sound smarter if I called people a jackass or called people dumb like SOME people on this forum do? somehow that dont sound rite 2 me
10-07-05, 02:43 PM
#68
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Originally Posted by cardzrule
ur right but Id rather b dum then be a pozer who acts competent by using fancy werds and math forumlas
so ur sayin I would sound smarter if I called people a jackass or called people dumb like SOME people on this forum do? somehow that dont sound rite 2 me
so ur sayin I would sound smarter if I called people a jackass or called people dumb like SOME people on this forum do? somehow that dont sound rite 2 me
And calling people stupid is different than calling them dumb?
I'm sorry that you're trying to make yourself feel better about how poor your math skills are by making derogatory comments about mine.
Edit: by the way... linear math is some of the easiest out there.
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