Anyone Running Walbro 255 On E85

[Hahny]

I would like to know if anyone is running a Walbro 255 on E85 and what would be the maximum HP with this set-up? Thanks

 

[Boost231]

I would like to know if anyone is running a Walbro 255 on E85 and what would be the maximum HP with this set-up? Thanks

Friend of mine has. As for as max power that will very car to car.

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[Hahny]

Thanks Boost231. I just found out the other day that my local gas station is now carrying E85 and I am thinking about converting my fuel lines over to Teflon. That being said, I just replaced my old fuel pump over the winter with a new Walbro 255 and hotwire kit and I was hoping to keep this pump when I do convert the car over to E85. Just trying to save some $ considering the new Teflon feed/return lines are going to set me back about $500.00.

 

[DavzGN]

I've been running e85 for 3 years with stock lines with a Walbro 255. I did upgrade the soft lines outside and in the tank to E85 compatible lines. Still running the stock turbo and 22psi.

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[Hahny]

Nice! What line did you install inside the tank? Thanks

 

[gnmaster2004]

I ran 11.60 in a full weight GN with a 255 pump

 

[gnmaster2004]

Stock lines and 55# injectors

 

[DavzGN]

I used a fuel line from AutoZone. It may have been something like this.
https://shop.advanceautoparts.com/p...gclsrc=aw.ds&dclid=CN6g7JiH4d0CFY7cwAodiwIJuQ



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[Hahny]

I ran 11.60 in a full weight GN with a 255 pump

On stock fuel lines?

 

[Hahny]

I have read somewhere about guys running flex fuel sensor with E85, due to E85 being inconsistent from one location to the next. Are you all running a flex fuel sensor? Thanks

 

[gnmaster2004]

No flex fuel sensor TT 6.1 chip. Now running mid 10’s with Walbro 450

 

[gnmaster2004]

The E-85 in South Florida is mostly E-75. I have been running it for years @ 28# Of boost no knock 21degrees timing

 

[Hahny]

The E-85 in South Florida is mostly E-75. I have been running it for years @ 28# Of boost no knock 21degrees timing

Damn 28 pounds of boost and no knock...sweet

 

[DavzGN]

I'm running an SD2 chip with a flex fuel sensor so it adjusts timing and boost based on ethanol content

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[dank GN]

With a 255 pump I would really like to know what your duty cycle is like at 20plus lbs of boost. I can almost guarantee it’s above 95%. If anyone was replacing a fuel pump and know they are going to run e85 I would look a the walbro 450 or a detuchworks pump . I guess it’s just me and not like running on te hairy edge of something goin south . Also you it would be wise to go with at bare minimum 80lbs hr injectiors .

 

[dank GN]

I'm running an SD2 chip with a flex fuel sensor so it adjusts timing and boost based on ethanol content

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Have you zeroed out the timing to ethanol content section?

 

[DavzGN]

I'm running an SD2 chip with a flex fuel sensor so it adjusts timing and boost based on ethanol content

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Have you zeroed out the timing to ethanol content section?

No. I decreased the amount of boost it was adding but otherwise the ethanol tables were left as delivered

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[dank GN]

No. I decreased the amount of boost it was adding but otherwise the ethanol tables were left as delivered

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I would zero that out unless you like adding 4-6* of timing

 

[Hahny]

With a 255 pump I would really like to know what your duty cycle is like at 20plus lbs of boost. I can almost guarantee it’s above 95%. If anyone was replacing a fuel pump and know they are going to run e85 I would look a the walbro 450 or a detuchworks pump . I guess it’s just me and not like running on te hairy edge of something goin south . Also you it would be wise to go with at bare minimum 80lbs hr injectiors .

Yeah, I'm around 95% at 20 lbs of boost. I'm currently running 60 lb injectors along with a walbro 255 and was hoping to keep those when I convert over to E85, but you recommend 80's?

 

[DavzGN]

No. I decreased the amount of boost it was adding but otherwise the ethanol tables were left as delivered

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I would zero that out unless you like adding 4-6* of timing

The ethanol can handle the increased timing.

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