Octane Levels, Over 91

[SC_erritos]

I don't know about anyone else, but in Southern California, i haven't seen a gas station that has fuel over 91 octane rating. What does everyone else do in this situation? Just ignore the knocking and the detonations?

[s14driftingTX]

You can get race fuel to add to the 91 octane. It's 103 or 105 octane i think. Sunoco makes it in California. You could maybe try some of that octane booster that you can buy in a bottle at gas stations. What are you running that's detonating and knocking on 91 octane?

[drftn13]

i know im not in california,

but for drift days we just go to the airport and buy 20 litre jugs of avgas,for street driving we have 98 alost everywhere,
but 91?? are you serious??
there is no way i would even think about putting that in my car.
and car companies say nz has low octane fuel??
(s14 sr20det/high mount t3/t4/.9 bar boost street/1.3 bar boost drift/550 cc injectors/gtr fuel pump/link ecu)

[SC_erritos]

I've seen STi owners forced to go back to the dealers b/c they're getting pings (mainly b/c the sti takes 93 min.), and the dealers are being real sheists about reflashing/mapping? the ECU's.

Maybe i'll just get a evo8MR? ahah.

[SC_erritos]

yeah, the highest was 91, unless i travel like an hour out of my way into the desert, AND it's still 2.39 a gallon. Crazy huh? We're *Censored**Censored**Censored*. Or just opec.

[nissanguy_24]

i believe the Evo runs more boost then the STI not your solution to your ping issue.

[drftn13]

dammmm thats cheap!!!!!!!!!!!!!!!!!!!!
our petrol is $1.30 for 96 per litre

and there is 4 litres in a gollon thats $5.20 per gallon nz dollars then times that by 2 to get us dollars that makes our gas $10.40 per gallon!!!!!!!!!!!!!!!!!!!!!!!!!
correct me if im wrong but from that you guys are lucky ashell!!

[nissanguy_24]

Originally posted by drftn13
dammmm thats cheap!!!!!!!!!!!!!!!!!!!!
our petrol is $1.30 for 96 per litre

and there is 4 litres in a gollon thats $5.20 per gallon nz dollars then times that by 2 to get us dollars that makes our gas $10.40 per gallon!!!!!!!!!!!!!!!!!!!!!!!!!
correct me if im wrong but from that you guys are lucky ashell!!

Curious.. whats your minimum wage over there? in US dollars if you dont mind.

[drftn13]

its staggered by age,
up till 18 its $5 nz
over 18 its $8.50 nz

us is just a little over double nz $$ last time i looked

whats the minimum there?

[nissanguy_24]

Originally posted by drftn13
its staggered by age,
up till 18 its $5 nz
over 18 its $8.50 nz

us is just a little over double nz $$ last time i looked

whats the minimum there?

so about 4.25 dollars an hour? american. Here i think federal minimum wage is around 5.50 or so. each state is allowed to set a wage higher though. California is 7 dollars an hour us.

this is kindof going off topic, but i just wanted to get an idea for price per what you pay for. Whats your average octane rating too?

[drftn13]

every station has 96 and 91
in the north island most bp and mobil have 98

[Emagdnim]

gas out here is about 2.39 a gallon for 96 octane.

Cam 2 is about 3.90 a gallon for 102-103 octane.

you really don't need high octane if your not runing high compression. Comperssion is usally dictated by stroke and piston head desgin. The longer the stroke the more comperssion that takes place. Compression isn't the only thing that effects your octane requirement but it is certinly what effects it the most

[SC_erritos]

by the time i fill up (on something higher at pasadena) and come back home, 1/4 of my tank is already gone. =T. TOo bad they don't have bp near cerritos.

[P1STON2ROTARY]

Originally posted by SC_erritos
by the time i fill up (on something higher at pasadena) and come back home, 1/4 of my tank is already gone. =T. TOo bad they don't have bp near cerritos.

heh yea unfortunately. Sorry lol, i wish i could have factored in cerritos.

[Chas]

ive seen 97 pump out east.

[SC_erritos]

Originally posted by Emagdnim


you really don't need high octane if your not runing high compression. Comperssion is usally dictated by stroke and piston head desgin. The longer the stroke the more comperssion that takes place. Compression isn't the only thing that effects your octane requirement but it is certinly what effects it the most [/B]

uhh who's lost?
<---- this guy. but thx for the info. (not carsmart yet)

[Feint]

Around $1.02 per liter for 91 craptane.Seriously,why are they allowed to sell so low? And to think that 91 is the highest here on average,with 87 being the lowest ocatane sold out here.Everywhere else besides the west seems to sell nothing below 95,but they also pay nearly double(the trade off).

I've heard about the aviation fuel trick before.Mixing some av gas with pump.Never done,but I heard it the fuel reeks when it's being burnt off.

[S13_Steve]

i know a high octane pump thats 103 octane in San Diego..... its near the navy base used for subs and military vechicles but u can also get ur car the same octane

[Emagdnim]

Originally posted by SC_erritos
uhh who's lost?
<---- this guy. but thx for the info. (not carsmart yet)

No problem, I'll explain . Stroke is the distance the piston travels up and down. When the piston is at the bottom of its stroke(the furtherest point from top dead center) it has pulled in all the gas and air into the combustion chamber and is about to start to move back up. Since the combustion chamber is air tight all the gas and oxygen gets compressed as the piston moves up. This is how comperession ratios are figured, say 10:1 compression means that before everything is compressed it will have 10 times the mass that it has when fully compressed.

Basicly a high comperssion engine needs high octane fuel in order to avoid detination.

[SC_erritos]

thx 8-)

[Chas]

Originally posted by S13_Steve
subs and military vechicles

Which both run on Diesel

[allblackS14]

i put 103 in every week...cost me 4 bucks a litre tho

[Unclever Name]

SC_erritos, there is a gastation in Orange county that sells race fuel. it is like 101 octane or something. its off El Toro, if u knwo where that is. i dont know the price anymore though cuz i moved out of that area. if u would like, i can find out where exactly it is and how much it is. just PM me or post back telling me u want to know. kudos

[SC_erritos]

IS IT LIK E A 76? (if u know the address, that would be good..) thx.

[AtroXR7]

there are ways to make your own homemade octane booster, search online. Its gotta me easier for most ppl to mix there own additives than trying to buy 110 fuel and mixing it all the time.
just run some net searches, i know the info is out there
I have 94 readily available if i needed it here in ohio and I dont even run a boosted car so i dont know the details for ya.