Type of gas?

[scheides]

Originally Posted by TalonTSiDude

How about 11:1 compression revving to 9k with a double shot of VTEC at 6k?

Exactly what I was getting at. That motor was designed for performance. When Honda was designing the S2000, it was originally intended to have 215-220hp and weigh xxxx lbs. When they got the road-version ready, it weighed about 150-200 lbs more than they thought it was going to. They had a target power-to-weight ration in mind, so they simply upped the anti and did whatever they could to get more out of the engine: i.e. less conservative tune, higher rev-limit, etc. Your average non-turbo car, (i.e. the ESI mentioned above) is not going to have such an aggressive tune on it from the factory, and will not care as much about higher octane gas.

On the flip side of this whole discussion, I have a friend that used to have a Volvo 850R (turbo). He always put 87 octane in the tank because it was cheaper & he claimed he didn't notice any difference--of course, the car was un-modified, and it was an automatic (but nice!).

Side note: Does the s2000 require premium (i.e. per manufacturer's spec)?

[Kracka]

Originally Posted by scheides

Side note: Does the s2000 require premium (i.e. per manufacturer's spec)?

91+ octane.

[Shotgun!]

Originally Posted by TalonFiero

yeah, when I first took the carburator apart I scooped some of the gooey gunk out with a screwdriver and lit it on fire. Smelled like we were roasting marshmellows. My entire intake manifold had a hard candy coating on the inside!

Melts in your intake manifold, not in your hand...

[unreal808]

Originally Posted by TalonTSiDude

Sugar won't do anything but clog the filter...urban myth.

That’s what I thought too, until I did a some work for the body shop, in witch someone put sugar / syrup mix in the fuel tank. The guy was luck though, I only had to replace the fuel pump, filter and injectors (V8), it ran ok, but it ran.
So I have your urban myth swinging. j/k

[Kracka]

Hmmm, maybe it depends on what type of filter? I saw this on that Mythbusters show and they never had any problems except a clogged filter in their testing.

[niterydr]

Originally Posted by CRAIG

I disagree. If your car is designed to run 87 octane then thats what you should run. I think that running a higher octance gas would hurt performance if its not designed to run with it.

And that goes right with what Chris said, assuming the qualities are equal of course. I have always wondered why you see N/A cars putting 110 in their tanks at the tracks and thinking its helping them? Is it? Or does it just smell faster?

CRAIG

N/A cars put in higher octane due to high compression and nitrous, not because it smells good, dumbass. How the fuel burns and the amount of time it takes to burn are a FEW properties and advantages/disadvantages of running 'higher' octane gasoline.
That being said, if the car is designed to run on 87, please burn 87.. adding 'extra' don't do shit but burn a hole in your pocket. The urban myths of 'liking your car' so putting in 'mid grade' or a tank of 'premium' just decreases the power of the car, under most circumstances. However, not all grades of gasoline are equal, and just because it has a higher 'octane' rating, doesn't mean its better. Doing some research into motor octane versus research octane of the specific 'race gas' you are going to run, can help 10 fold when it comes to tuning.
Welcome to the board Jcline, your lucky to get 3 tech posts per help thread, but you will have a 2 page thread within a week..

[unreal808]

I saw that one too I love that show. But sometimes they don’t always use the right process , like the time they shot a frozen chicken at a plane windshield , only later on come to find out that the plane didn’t have safety glass or what ever, like in a commercial air craft.

[TheBlizzard]

Originally Posted by niterydr

N/A cars put in higher octane due to high compression and nitrous, not because it smells good, dumbass.

Really, god I have been misinformed all this time but thanks Swanny for correcting me. But when did I ever say anything about high compression. You just said the exact same thing I said minus the ricer JOKE at the end. Dumbass.

CRAIG

[JET]

Originally Posted by niterydr

N/A cars put in higher octane due to high compression and nitrous, not because it smells good, dumbass...

Are you telling me you haven't seen the honda boys running race gas? V-tach luv's it, yo! Dumbass

Most people have a misconception about race gas, they think they will add a bunch of power by putting 110 in a regular car. That is BS. That is what Craig was talking about.