which octane to use with b16?
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From: atlanta, ga, usa
which octane to use with b16?
someone recently told me it was ok to use 87 octane on my 1st gen jdm b16...has anyone had any experience with this? gas it getting pretty damn expensive lately..and it would be nice to save 2 bucks per fill up
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From: Long Island, US
Re: which octane to use with b16? (thekori)
I have only been running 93 (occasionally 91, but only when I cant find 93 or better). Tried a tankful of 89 once, and the car ran like crap, so I doubt I'll do that again.
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From: Bad Newz Kennels
Re: which octane to use with b16? (wtang01)
I use 93 and 94 when I can find it..nothing less then 93!
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From: OuT tHERE, TN, USA
Re: which octane to use with b16? (ejprimo)
I've heard about 91 being the highest octane at Cali pumps. I would drop a half gallon of C12 in before every fillup out there. I am sure race shops domestic or import will have race gass. Its probably everywhere out there. I know several places here in Memphis that sell it including a dirtbike shop.
Re: which octane to use with b16? (Phat_Optimo)
i'm putting together my b16a with ctr oversized pistons and milling the head w/ an oem head gasket and am not sure about what my comp. would be but what octane should i run in that... 91 is the highest here in vegas besides race gas... can i just put 91 then octane booster? TIA 
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From: Gresham, Oregon, USA
Re: which octane to use with b16? (92boostn'hatch)
I would go with the highest octance that you can get tho a B16 will probably run on 87, 91+ is just better, VTEC motors like higher octane... If your motor is at all internally built then I wouldn't use low octane gas no matter what... I agree with Phat_Optimo... Mix if your gonna use low octane... or if you want spend $10.00 a gallon and get some straight C14 or C16... haha j/k f- that... let's see you probably have around a 10 gallon tank so (10gallons)x($10.00)=$100.00 to fill yoru car up... SCREW that... I would only do that for a race motor that you're trying to make streetable... 14.0:1 compression??? 
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From: Sacramento area, CA
Re: which octane to use with b16? (Kataku2K3)
I am running 87 on mine, With good results. If you are not pinging
or detonating, there is no need to run the higher grade. Higher octane gas
is just a stabler gas that is more resistant to burn,less likely to preignite.
or detonating, there is no need to run the higher grade. Higher octane gas
is just a stabler gas that is more resistant to burn,less likely to preignite.
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From: Eindhoven, Netherlands
Re: which octane to use with b16? (thekori)
Sunoco 94. That stuff was 100% responsible for about .3 sec difference in the 1/4 mile for me (compared to 93 mobil).
I have over 100 timeslips for my car in one summer and I can tell you exactly what was responsible for any variation in the times (went from 15.4 to 14.3 during the course of a summer).
I'm not sure if it's just the octane though...they probably put some other stuff in it, or they underrate their octane.
I have over 100 timeslips for my car in one summer and I can tell you exactly what was responsible for any variation in the times (went from 15.4 to 14.3 during the course of a summer).
I'm not sure if it's just the octane though...they probably put some other stuff in it, or they underrate their octane.
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From: Midwest, USA
Re: which octane to use with b16? (Bryant)
here's an accurate answer for you. first, what it says in the factory helms manual for the b16:
so what does RON mean? a RON rating of 95 is equilvalent to 91, according to a quick search on yahoo:
edit: image link fix
[Modified by keebler65, 8:03 PM 3/6/2003]
so what does RON mean? a RON rating of 95 is equilvalent to 91, according to a quick search on yahoo:
There are two basic octane measuring methods, the Research and Motor methods, plus some derived versions like AKI (Anti Knock Index) and Pump Posted octane numbers.
The Motor rating came first, is a more severe test and represents engines under high load, full throttle conditions. It’s usually abbreviated to MON (Motor Octane Number).
The Research method was developed to represent engines under lighter load, part throttle conditions more like those commonly found in road vehicles. It’s abbreviated to RON (Research Octane Number) and is usually a higher number than the Motor rating.
The AKI or Pump Posted number is the average of the MON and RON ratings for a given fuel. The AKI is a better indicator of the fuel characteristics, when only one octane number is advertised.
Fuel type MON AKI or PP RON
Unleaded: 82 87 91
Premium unleaded: 86 91 96
You need to know which octane rating is meant when the manual says "use 95 octane". To reduce consumer confusion over different octane numbers, the USA passed laws so that AKI is the octane rating shown on pumps at gas stations. Commonly-available fuels are 87, 89 and 91 AKI octane.
So let us hope the manual means the RON rating must be 95, which means you're OK using premium unleaded with a 91 "at the pump" rating.
The Motor rating came first, is a more severe test and represents engines under high load, full throttle conditions. It’s usually abbreviated to MON (Motor Octane Number).
The Research method was developed to represent engines under lighter load, part throttle conditions more like those commonly found in road vehicles. It’s abbreviated to RON (Research Octane Number) and is usually a higher number than the Motor rating.
The AKI or Pump Posted number is the average of the MON and RON ratings for a given fuel. The AKI is a better indicator of the fuel characteristics, when only one octane number is advertised.
Fuel type MON AKI or PP RON
Unleaded: 82 87 91
Premium unleaded: 86 91 96
You need to know which octane rating is meant when the manual says "use 95 octane". To reduce consumer confusion over different octane numbers, the USA passed laws so that AKI is the octane rating shown on pumps at gas stations. Commonly-available fuels are 87, 89 and 91 AKI octane.
So let us hope the manual means the RON rating must be 95, which means you're OK using premium unleaded with a 91 "at the pump" rating.
edit: image link fix
[Modified by keebler65, 8:03 PM 3/6/2003]
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From: Riverside, CA, US
Re: which octane to use with b16? (thekori)
always use the lowest octane possible before predetonation or pinging. Anything more is just a waste and can even cause more pollution and dampened performance. In short, always use what the manual says.
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From: Midwest, USA
Re: which octane to use with b16? (Aeka GSR)
always use the lowest octane possible before predetonation or pinging. Anything more is just a waste and can even cause more pollution and dampened performance. In short, always use what the manual says.
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From: Midwest, USA
Re: which octane to use with b16? (altoid)
thats odd my d16a6 syas the same thing and who knew 9.1:1 cr required 91 octane, thats crazy 
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From: Buffalo, NY, USA
Re: which octane to use with b16? (keebler65)
sry to bring this thread back alive, lol but when im taking a roadtrip in my Si, I used 89 since i won't go over 4500 rpm on the highway anyways. In the city, I used 93 just because of the stop, go, and vtec.
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