E-85 and our Fuel pump

[Brian@Vossen]

I was wondering how well our fuel pump with upgraded injectors hold up with e85. Has anyone had problems with this in the past? Wanted to ask just in case and take precautions if needed. I plan on going full bolt on and then forced induction in the future. Looking into throwing in motor mounts and doing the Cobra Jet manifold as well.

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[Barrel]

Process is over 800rwhp on E85 with the stock pump and BAP. That would be pushing it pretty much to the max. Some guys are going to a Fore system now so they can push the numbers higher and not risk burning out the stock pump.

 

[UPRSteve]

I was wondering how well our fuel pump with upgraded injectors hold up with e85. Has anyone had problems with this in the past? Wanted to ask just in case and take precautions if needed. I plan on going full bolt on and then forced induction in the future. Looking into throwing in motor mounts and doing the Cobra Jet manifold as well.

You will start seeing issues with adding a BAP on the e85. For NA, your fine.

 

[beefcake]

like steve said, na should be fine, we usually like to see a stage 1 fuel system on power adder cars

 

[Brian@Vossen]

Thanks guys!

 

[Process]

You will start seeing issues with adding a BAP on the e85. For NA, your fine.

No issues at over 800whp. Thats about as far as the pump will go with 22v driving it on E85. This has been proven.

This being said, I'm still going to swap over to a dual pump setup shortly. Just got married so, mod budget, hmm, wonder where it went.

 

[dubster99]

No problems with my pump.

 

[UPRSteve]

No issues at over 800whp. Thats about as far as the pump will go with 22v driving it on E85. This has been proven.

This being said, I'm still going to swap over to a dual pump setup shortly. Just got married so, mod budget, hmm, wonder where it went.

Horsepower isn't really the the issue. It's the the mechanics of the fuel pump. E85 requires more so the pump is working harder. When you add more voltage to it, it can wear out faster.

A return style system like what Terry said will fix this no problem on boosted cars. Recommend it too!

 

[Process]

Horsepower isn't really the the issue. It's the the mechanics of the fuel pump. E85 requires more so the pump is working harder. When you add more voltage to it, it can wear out faster.

A return style system like what Terry said will fix this no problem on boosted cars. Recommend it too!

what happens when one of the pumps dies in a dual pump setup and you're on it? Boom.

Least with the bap, if it shorts the pump, car just shuts off.

I don't disagree with you that a dual pump setup is ideal. Just don't short change the jms fuelmax. It works quite well on these cars up until about 800ish wheel on E.

 

[Reds197]

what happens when one of the pumps dies in a dual pump setup and you're on it? Boom.

Least with the bap, if it shorts the pump, car just shuts off.

I don't disagree with you that a dual pump setup is ideal. Just don't short change the jms fuelmax. It works quite well on these cars up until about 800ish wheel on E.

Most of the aftermarket fuel systems only turn on the second pump under boost. This helps the life of the pumps.

I ran a BAP on my last 5.0 with zero issues but some had problems. The problem with a BAP is it can reduce the stock pump flow unknowingly. You run out of pump in the upper RPM's under boost and go way lean. The 15 is better out of the box (flow and fuel line are larger) than 11-14. Maybe it will be better. Time will tell.

Benefits to each but I have experienced less issues with fuel system on the coyote platform.

 

[Process]

Most of the aftermarket fuel systems only turn on the second pump under boost. This helps the life of the pumps.

I ran a BAP on my last 5.0 with zero issues but some had problems. The problem with a BAP is it can reduce the stock pump flow unknowingly. You run out of pump in the upper RPM's under boost and go way lean. The 15 is better out of the box (flow and fuel line are larger) than 11-14. Maybe it will be better. Time will tell.

Benefits to each but I have experienced less issues with fuel system on the coyote platform.

4000 miles under E85 and 800whp, so far so good. It's holding a solid high 7's AFR through the power band (I'm reving to 7800) under WOT.

I understand about how the fuel systems run a hobb switch for the second pump, but my scenario I described as during WOT when both pumps should both be on, and if one goes out.

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