Looking for 650-750whp on E85! This setup is actually on a turbo 3800 (I am using it in a forced induction application) that currently makes 500whp on 93 pump gas. Currently have an in tank Racetronix pump with a rewire.

Was piecing together a setup with a beefier in-tank pump and a Boost-A-Pump but Im worried about adding more points of failure since the only failures I ever had on this car were fueling related. Been looking at multiple different kinds of in line pumps from Magnafuel, Aeromotive, and Bosch. Looking to maybe go overkill to avoid fueling issues all together so Ive been looking to piece together an Aeromotive (or similar) fuel setup and this is getting expensive FAST after factoring in all of the filters, AN lines, etc!

Was looking at something like the Aeromotive A1000 and have been assuming it would do 700whp pretty easy on E85 but the setup is just so damn expensive. Ive done some ghetto math using calculators and Im pretty sure the A1000 or the in tank pump on a Boost-A-Pump would be sufficient enough to feed that much E85.

Ive got a buddy that is recommending I just throw a Bosche 044 in line with my current pump saying it will be plenty for 700whp on E85. This route seems to be the cheapest. After a quick Google search and looking around the internet it seems like there are a decent amount of setups (imports and domestics) doing 600whp or so with either a walbro 255 or their cars stock in tank pump AND a Bosche044 on E85.

Another recommendation Ive gotten is the in tank fuel pump out of a 2006+ flex fuel vehicle F150. Ive been told its upwards of a 300-335lph pump but I cant find confirmation on that. Can find these decently cheap used and could run dual pumps and be set.

Lastly, the most viable solution I think is to run dual in tank Walbro 255s.

What are you guys running? Thoughts?

Ive also got this thread in the fuel section but moderators you can delete that thread if you want to.

 

bump, im interested too, i like the idea of twin pumps for cheap and flex fuel, and 670 LPH

 

Anyone?

 

I would say externally mounted parallel a1000's with individual pre-filters will give you a good amount of headroom with your goals. The reduced demand on each pump will increase the life of each pump and you will have headroom to upwards of 1000whp if so requiring. Also it is better to have a parellel set-up so if one pump fails, you will still have a decent amount of pressure, as opposed to a series set-up, where if one fails, the flow is SEVERLY effected and catastrophic damage is VERY likely

 

once again though, your talking about a healthy chunk of change with a pair of A1000's. These F-150 pumps, for a pair totaling 670lph, can be had for about the same as twin in-tank walbro 255's

 

OP, you need to be able to flow about 900 rwhp worth of gasoline to support 700 rwhp on e85. 2 Walbros will do it or single big external pump. The stock feed and returns must both be replaced as they are too small and will not deliver the volume.

Personally, I preffer a single pump. If you have one pump and it dies, the car dies. If you have 2 pumps and you lose one making a pass, you go really lean and are at a much higher risk of breaking something. Also, if you do decide to go dual pumps, put one on a hobbs switch. Having both pumps running all the time will just get your fuel hot and potentially cavitate the pumps. This is bad for pump life.

I would recommend a -10 feed and -10 or -8 return.

 

98Z28cobrakiller, I'm running twin 255's in tank with -8 feed and using the stock feed line for the return. I am also looking in to E85 and will prob produce at the 700rwhp mark eventually. Not right away though. You think my current setup would be fine? I also have the magnafuel boost referenced FPR. I would kinda think -8 return is kinda overkill. Maybe I'm wrong though.

 

bump.

 

up top

 

Im running a dual walbro setup with stock fuel lines no fpr and 96lb injectors on my 370ci pt88 combo on 10psi and havent had any fueling issues...I think you'd be fine with ur dual walbro setup and -8 feed, thats good for around 1200hp on gas

 

Two 255's will be plenty and I wouldn't be surprised if you could do it on the stock fuel line. We have done 650rwhp on E85 with a 3/8" line.

 

guys its not about the lines or rails or anything, its about the pumps themselves. Its my understanding that the Walbro's cannot run E85, running these pumps would benefit by being switchable and easy to get, and have a little more flow.

 

I have a buddy making 655rwhp on e85 w/ twin in tank walbro 255s and I think (don't quote me on this) he is running a -10 return...

 

I run the largest Magnafuel external with 190lb injectors, the car drives like a dream... you will love E85 once you get your setup sorted. Twin walbros would be fine at 700rw but a big external with a speed controller for idle/cruizing demands would be the best...

 

Bump:
Im nearing the point where I am going to order everything. I priced out everything to sump the tank, run a sweet external pump, and all the filters/lines Im going to need. **** is expensive as hell.

Im debating on whether or not to try either dual 255s or a single 255 and a BoostAPump (Ive already got one sitting here).

What do you guys think about running dual 255s but they both have their own feed line that goes into separate fuel rails... then the fuel rails T into the fuel pressure regulator? Ive got a second stock feed line here that I could put on and set up pretty easy. Would be kinda ghetto but I imagine it would work =p.

 

Do you have a fuel management system with that as well?
I'm still up in the air for my setup, but it'll probably be twin in tank walbro's for now since I'm sticking to my stock bottom end til I grenade it

 

I'm with the cobrakiller on this one, single pump > dual pumps. Because E runs so cold, if a pump in a dual setup went out you may be ok, but I wouldn't risk it. Dual pumps are problematic because you will have no idea if one goes out, until it's too late. If you lose a pump, you'll still have decent FP at idle from the remaining pump, but you'll see a lean condition up top. A single A1000 with pre and post filters should get you done, but there are better pumps out there. E burns fast, so you will need at least 95lb injectors, -8an feed, and a good set of rails.

If I read you right, you're doing this on a V6? Turbo 3800?

 

I would be this buddy! Yup e85 on twin walbros. -10 feed, 3/8 stock feed as the return...

 

600rwhp here on twin walbros, -8 feed, -6 return. This way is definatelt cheaper than a big single but I agree, one pump failing kind of scares me. For 750rwhp I would do -10 feed and -8 return. Sure people have made that power on less but if your buying it, you only want to buy once right. -10 stuff is very similiar price to -8. Check out Magnafuel for filters. Im using the 2" diameter 25 micron after the pumps. Aeromotive filters are not rated for ethanol and you need a stainless element.

 

Hey mang, are you on stock rails? I will be wanting to take a look at your fuel system sometime soon so I can start getting mine ready...