Can I Run E85 On A 98 Pulp Tune

[The Bogan]

As per title and description, Im not sure if this would work as the extra fuel used in E85 compared to 98 PULP.

Looking at keeping fuel RON higher for track days to try and keep it ?safer?.

I usually put in a octane booster.

I run 800 cc injectors, Bosch 044 in tank and a Link ECU.

I would run E85 on a safe E85 tune if there was more than 1 place where I could buy it in Sydney, but alas there isnt, and Im not that dedicated to get 44 gal drums of the juice.

Thanks, Mark

[SimonR32]

No, the motor would run lean and probably do damage

[TiTAN]

mark if you have a Link G4, talk to yavus about getting a 2nd fuel map done for E85, that way you can switch between the two with a switch on the dash/in the glove box connected to the ECU (run the tank to empty and then fill with 85 and switch over the map)

[The Bogan]

Thanks mate, Caltex better hurry the puck up and start stocking E85

[The Bogan]

Yeah Unigroup is building me a new motor which should be finished soon so a switch between maps sounds the go when its getting retuned....

I must look into this further....until then octane booster is it then.

Happy Days

[STATUS]

just set it up as flex fuel, the G4 should have no issues.

[Rolls]

just set it up as flex fuel, the G4 should have no issues.

Surely for the flex fuel to work they need to do lost of dyno time varying the mixture to confirm the afrs are correct? Or do you mean essentially use one or the other.

Edited September 10, 2010 by Rolls

[TiTAN]

just set it up as flex fuel, the G4 should have no issues.

i thought they only supported the Siemens sensor for that? its possible but not cheap.

[STATUS]

Surely for the flex fuel to work they need to do lost of dyno time varying the mixture to confirm the afrs are correct? Or do you mean essentially use one or the other.

Link supports the seimens sensor, if a megasquirt can do it i reckon my calculator should be able to work it out

[STATUS]

i thought they only supported the Siemens sensor for that? its possible but not cheap.

you could also do it via a permanent wideband sensor, but sensor degradation over time would need to be monitored. A dead sensor would wreak havoc.

[scotty nm35]

you could also do it via a permanent wideband sensor, but sensor degradation over time would need to be monitored. A dead sensor would wreak havoc.

Using dual wideband sensors could work, but you are getting up there in cost. How much is the flex fuel sniffer sensor anyway?

It seems the sensor outputs a square wave of varying frequency. How many ecu's can take this type of input?

http://www.theturboforums.com/smf/index.ph...8727.msg1083049

[STATUS]

Using dual wideband sensors could work, but you are getting up there in cost. How much is the flex fuel sniffer sensor anyway?

It seems the sensor outputs a square wave of varying frequency. How many ecu's can take this type of input?

http://www.theturboforums.com/smf/index.ph...8727.msg1083049

Most Ecu's will work with a pull up resistor.

The sensor is not cheap but in the scheme of things $500 (max for new version, as old versions are unreliable) is not too bad for the convenience of filling up anywhere.

Im working with a ecu manufacturer at the moment to integrate the inbuilt diag so it will set off the engine light if it goes out of spec (same as in factory installs)

I will check that thread out now

[TiTAN]

model # 12570260

thats the new model yea?

[The Bogan]

http://e-85.com.au/e85-performance-fuel/

$500 is OK, Flex Fuel thingo sounds like its easy to install (not by me of course, I only fix things with hammers)

COMPATIBLE FUEL SYSTEM COMPONENTS: Because ethanol contains oxygen, it can form corrosive agents. Any water that enters the system can promote the formation of formic acid. Although this process takes a significant amount of time before damage occurs, the tank, pump, and lines should be either stainless steel or coated with a plastic material that is ethanol-compatible. All natural rubber parts that could be in contact with ethanol must also be replaced with synthetic and other materials.

From reading this they suggest a stainless/plastic fuel cell and replace all lines as well as it is corrosive, dont really want the rear of my boat looking like a A9X with a big arse stainless tank hanging low (though the extra volume of fuel would be welcome(suppose I could paint it black ?)), but meh, might ring around some places that fab tanks for a price.

More to follow.

Mark

[TiTAN]

skylines already use a plastic tank.

[The Bogan]

Yeah OK Im a idiot, was reading in anouther thread about fuel pumps and it said if it was a GTR it would have a plastic tank, so I ass umed that a GTS-T wouldnt.

Thanks man.

[JH32]

Digging up an old thread here, but I pulled my fuel tank on the weekend to give it a full clean out (gunk + BP98) and to replace the fuel pump with a Walbro 460LPH unit. I have a PowerFC with a BP98 tune.

Given the car will run lean with the E85, but also given I'm keen not to introduce BP98 back into the tank, I'm wondering whether I can fill the tank with E85 and drive carefully (i.e. no boost, minimal revs) to the workshop to get tuned? I know it would clearly be safer to get it towed but that might be a hassle with work hours etc. Obviously I don't want to cause any damage so if there's any risk of that even off-boost then I'll just have to get it towed but just looking for some thoughts or experience.

Cheers

[zebra]

Doubt it would even idle

[Piggaz]

Tow it.

[Dose Pipe Sutututu]

won't work, car probably won't even start.

gasoline stoich is 14.7:1

e85 is 9.7:1

you need alot more fuel to start the car or to even get it to idle