[Emilime75]

People have also installed small computer fans on the EKP to help keep it cool.

[stewbets]

Originally Posted by iqraceworks

You blew the 20a fuse? Those pumps are only supposed to pull 16amps max. I think the fuel pump controller should shut off at 18a......you might want to put a 20a fuse back in......it's protecting other components.

Never heard of a Walbro 450 blowing a fuse..strange.

Got any pictures of that eBay assembly and how you installed the pump?

I read about enough fuses blowing that it was my first thought when the engine cut off. Here are a few pics of the bucket. Both the top piece and pump bracket are simply snapped in place and the pump bracket was the perfect height for the 450. I didn't have to modify anything.

[stewbets]

Originally Posted by Emilime75

Is the Walbro 450 your only fueling mod, and you're now running full E85? I thought the fuel line had to be replaced because high ethanol content breaks it down, and additional fueling mods were needed for full E.

The fuel lines are fine for ethanol. It's not a bad idea to upgrade to larger ones for more flow, but I'm nowhere near that being a problem. The HPFP is something to monitor closely on e85 and the EKP is another weak link.

[_N54]

Just installed my BMP Stage 2 bucket less. Car idles and runs way smoother. It was obvious my stock LPFP was a bit on the weak side.

[mweisdorfer]

Originally Posted by stewbets

I installed my Walbro 450 today and so far so good! I bought a cheap fuel pump assembly so I could cut it up without feeling too bad while still having my car intact, and I was pleasantly surprised by this $50 eBay special. Instead of the pump mounting brackets being glued to the bucket, they simply snap in place making disassembly much easier. So, I made the crazy decision to not cut the bucket and simply swapped the 450 in. The hardest part of the job was probably getting the lock ring off the tank, but spraying WD-40 through the holes under the tabs made it much easier for my hammer and screwdriver approach. Anyhow, I drove to the gas station with my gas light on and put full e85 in the tank for the first time. And then my engine cut off on my first hard pull on the interstate. Unsurprisingly, the fuse for the fuel pump had blown. I replaced the 20A fuse with a 25A one and went out for some more pulls and logging. Everything looks good to me. Before when I was running between e40 and e50, my LPFP would dip into the 40's during a pull. Now on full e85 it doesn't dip below 60. I'm satisfied. Here's a 3rd gear pull from tonight:

https://datazap.me/u/stewbets/414whp...;data=11-20-21

I did t think you could go full E85 with a stage 2 pump. I thought a stage 2 pump allowed you to run e30 and e50 w/ out any hiccups.

On an older OEM LPFP running e30 is problematic. A new(er) OEM LPFP can run e30, but it's advised not to run e30 all the time.

I thought if you wanted to run full E85, you needed a stage 3 pump?

[Emilime75]

Originally Posted by stewbets

I read about enough fuses blowing that it was my first thought when the engine cut off. Here are a few pics of the bucket. Both the top piece and pump bracket are simply snapped in place and the pump bracket was the perfect height for the 450. I didn't have to modify anything.

Please post a link to what actual bucket you bought.

[stewbets]

Originally Posted by Emilime75

Please post a link to what actual bucket you bought.

Not sure why the price is jacked up now (they're also out of stock now), but I bought this one for $52:

https://www.ebay.com/itm/Electrical-...72.m2749.l2649

[stewbets]

Originally Posted by mweisdorfer

I did t think you could go full E85 with a stage 2 pump. I thought a stage 2 pump allowed you to run e30 and e50 w/ out any hiccups.

On an older OEM LPFP running e30 is problematic. A new(er) OEM LPFP can run e30, but it's advised not to run e30 all the time.

I thought if you wanted to run full E85, you needed a stage 3 pump?

I've been running ~e45 for the past 6 months on the stock LPFP, which I can only assume has 100k miles on it, and it has done just fine. A Walbro 450 is rated for 500+HP on full e85. Did you see my log? The 450 never dipped below 60 PSI.

[iqraceworks]

Originally Posted by stewbets

I read about enough fuses blowing that it was my first thought when the engine cut off. Here are a few pics of the bucket. Both the top piece and pump bracket are simply snapped in place and the pump bracket was the perfect height for the 450. I didn't have to modify anything.

How did you hook up the fuel hose that you have hooked to the Walbro? I see that one end is hooked to the Walbro, but is the other end clamped to a straight fitting that the OEM fuel fitting hooks too?

[stewbets]

Originally Posted by iqraceworks

How did you hook up the fuel hose that you have hooked to the Walbro? I see that one end is hooked to the Walbro, but is the other end clamped to a straight fitting that the OEM fuel fitting hooks too?

I used a 5/16" fuel rail to 3/8" barb straight fitting.

https://www.ebay.com/itm/133408791555

[mweisdorfer]

Originally Posted by stewbets

I used a 5/16" fuel rail to 3/8" barb straight fitting.

https://www.ebay.com/itm/133408791555

I don't see a line going to the Venturi ?

The videos & DIY's have fuel line like you have but a "T" on it. One side goes to the Venturi & one side goes to the fuel line. The Venturi dude should an E85 approved corrugated line going down to the Venturi.

[stewbets]

Yep, I'm not using the venturi in my setup. That's why I said it was crazy not to cut the bucket. But I figured it would be interesting to try it this way and see what happens. My thought process is that with the 2 return lines dumping fuel back into the bucket, I'll still be better off than going bucketless. Maybe I'm wrong. I'll be doing plenty of logging to keep an eye on things.

[iqraceworks]

Originally Posted by stewbets

Yep, I'm not using the venturi in my setup. That's why I said it was crazy not to cut the bucket. But I figured it would be interesting to try it this way and see what happens. My thought process is that with the 2 return lines dumping fuel back into the bucket, I'll still be better off than going bucketless. Maybe I'm wrong. I'll be doing plenty of logging to keep an eye on things.

I'm interested to see what you find out. I'm definitely not going to be plumbing in the Venturi...so I'm going to need to decide on just leaving the bucket like you did, or cutting the bottom out.

[Chris@VargasTurboTech]

That line will probably burst after some time if submerged in ethanol -I know it's rated for it, but doesn't seem to last. You can use nylon or Teflon based lines, if you don't have a source email me and I can help get you sorted.

[mweisdorfer]

Originally Posted by Chris@VargasTurboTech

That line will probably burst after some time if submerged in ethanol -I know it's rated for it, but doesn't seem to last. You can use nylon or Teflon based lines, if you don't have a source email me and I can help get you sorted.

Agreed any parts used to hook up to the Venturi & the fuel line to be E85 approved. Only certain materials are.


https://millee.org/submersible-fuel-hose-e85/

[Jeef]

just go with a drop in bucketed method... never had issues with one. can run full e85 on it without ever having to worry about using the right material hose etc. It saves a lot of time and time is money!

[stewbets]

Originally Posted by mweisdorfer

Agreed any parts used to hook up to the Venturi & the fuel line to be E85 approved. Only certain materials are.


https://millee.org/submersible-fuel-hose-e85/

What exactly are you agreeing with? You posted a link that includes 3 hoses that look like mine and 2 of them aren't even rated for fuel injection. And you have no idea whether or not my hose is e85 approved. Not a very helpful post.

Anyhow, my install kit is e85-approved. It was put together by a company that makes and sells fuel systems. I'm fairly sure they have a handle on what components will get the job done.

[mweisdorfer]

Originally Posted by stewbets

What exactly are you agreeing with? You posted a link that includes 3 hoses that look like mine and 2 of them aren't even rated for fuel injection. And you have no idea whether or not my hose is e85 approved. Not a very helpful post.

Anyhow, my install kit is e85-approved. It was put together by a company that makes and sells fuel systems. I'm fairly sure they have a handle on what components will get the job done.

I never said anything about your hose not being E85 approved or not. Idk if the hoses used in the two videos are or are not. I can make a reasonable assumption that the video produced by boost concepts shows fuel line hoses that are indeed E85 approved. After all E85/ walboro 450 pumps is part of the daily business.

[mweisdorfer]

Originally Posted by Jeef

just go with a drop in bucketed method... never had issues with one. can run full e85 on it without ever having to worry about using the right material hose etc. It saves a lot of time and time is money!

Yes, but you pay about $200-250 more for the pump. Why do that, if you can source the correct parts for pennies on the dollar w/ a little research & discussion.

There's plenty I can think of that could be done with a few extra hundred $$ in my pocket 😉

[stewbets]

Originally Posted by mweisdorfer

I never said anything about your hose not being E85 approved or not. Idk if the hoses used in the two videos are or are not. I can make a reasonable assumption that the video produced by boost concepts shows fuel line hoses that are indeed E85 approved. After all E85/ walboro 450 pumps is part of the daily business.

Chris was saying even some ethanol-approved hoses burst and then you said you agreed that the hoses need to be e85-approved. That's not what he was saying, so you're not agreeing with anyone. And then you posted perhaps the most unhelpful link possible to a website claiming to share e85 submersible fuel lines, but including products that are most certainly NOT approved.

When you buy a pump, it either comes with the filter and hose or you buy an install kit separately. There's no guessing or special knowledge needed. This isn't rocket surgery.

[stewbets]

Originally Posted by mweisdorfer

Yes, but you pay about $200-250 more for the pump. Why do that, if you can source the correct parts for pennies on the dollar w/ a little research & discussion.

There's plenty I can think of that could be done with a few extra hundred $$ in my pocket 😉

I totally agree with this. And equally as much as saving the money, I enjoy putting it together myself. This isn't for everyone, but I think it's fun.

[Saif2018]

Guys If im only gonna be using 93 octane fuel, at what stage should I be thinking about LPFP upgrade?