Best solution for an SR tank full of 89 octane?

[K2Ska311]

What's the best course of action, octane booster? Minimal boost untill refill?

[Valley]

no boost until refill and stay in the lower rpm.

[9240sx]

Well how much boost you running??If its stock boost there sould be no problem.

[virus77]

why risk it, just run off boost and in the lower rpm's untill the tank is almost empty and fill her up with high octane, shouldnt take more than a few days, about 2 days in my case if it was a full tank.

[JDMEnthused]

eh.. Octane boost might be the cheaper way out of it.. you can increase your octane by purchasing octane booster for a few dollars and it wil treat a surprisingly large amount of fuel.

my .02 cents.. i mean either one are really good but.. its really just up to you.

[180fan]

don't boost till it's gone.

[Fenvy]

match down the fuel tank

[574-240sx]

Don't dillute it anymore by peeing in it. Do any stations around you carry 110/114 octane, I know its late in the year but you could get lucky.

these links may help http://www.ls1tech.com/forums/...torco http://evo.jedinite.com/toluene.html

[Silverbullet91]

Put some octane booster in AND keep outta of the boost (low rpm) unitil the tank is near empty.

[RobDET]

Drain it...

[GripR]

Drain it...

[K2Ska311]

Ended up draining it down to like 1/8 and filling it with 93, gonna wait till half and fill it again till i start boosting. Thanks for replies.

[RobDET]

Even 1/8th of a tank of piss water + 7/8ths of 93 should be ok if you are running anything near stock. If you are running 14 PSI on a T25 with a sidemount i would worry but other than that you are probibly fine.

[travisn]

i think the easiest thing to do would be to de-pressurize the fuel system in the engine bay, and use a connector to hook the rubber line up into another line and put it in the gas tank of another car, turn your ignition into the on position and the cars fuel pump will pump it out. and no, you wont burn your pump out bc what do you think it is doing when you are driving down the road? just remember to leave enough in the car to get to the gas station...

[RobDET]

Only problem there is that the fuel pump only runs for a few seconds when you first turn on the ignition switch. You could hold it in the on position but that's not good for the starter, you could pull the starter fuse (if there is one) I siphoned mine to get gas for my High MPG car right after the hurricane.

[Nismo_Freak]

I would have just retarded timing about 2 - 3 degrees and ran around on stock boost with a light foot.

[travisn]

so you say that your fuel pump doesnt run when your car is on? it only runs for a few seconds because it reaches pressure, if it never reaches pressure it will continue to pump, ie, if it is pumping into a bucket...

[Nismo_Freak]

so you say that your fuel pump doesnt run when your car is on? it only runs for a few seconds because it reaches pressure, if it never reaches pressure it will continue to pump, ie, if it is pumping into a bucket...

No, there is no fuel pressure signal on the entire car. It is reliant upon ECU switched control.

You will need to hardwire the pump, or turn the CAS to get the fuel pump to remain on.