So I need some advice, I was really thinking of running e85 on my car. My current set up is a Buschur FS635 Cast manifold turbo, GSC S2 cams, ams tbe, devo fmic, wallbro 255, fic 1050cc injectors.

In order for me to run E85 is my single wallbro good enough and are my injectors big enough??

thanks

 

I ran a single walbro up until 500hp then we ran out of fuel. Not sure on the injectors but maxed my 1250s out at around 612hp. Hope this helps

 

Both walbro and aeromotive will run out of fuel at 500 wheel horse power dynojet

 

hmmm so i might have a shot to run e85!! We will test n tune to see if i run out of fuel or not. appreciate the feedback . finishing putting the trans in the car hopefully tomorrow night and then going to get tuned!!

 

I'm in the process of tuning my fp black on e85. I was surprised that I'm only hitting 80% idc at 25 psi, so far. I have fic 1100's and a Deatschwerks 300.

 

A single Walbro 255lph will run out of steam about 550whp but that would be pushing it. A safe 500whp would be no sweat.

 

you will need a fuel rail if you're shooting for 500+ hp on E85 as well.

 

This is not true, my friend. Many have achieved the 500whp+ mark on E85 with the stock fuel rail. Within the next week, I will also do the same exact thing.

 

Exactly I made over 500whp on a single walbro and I all about killed it pushing that much power with e85. Fuel rail isn't needed and neither is upgradeing the fuel lines. In fact I am still on stock fuel lines.

 

Well, I maxed my fic 1100's out the other day. I'm hitting 99% idc at 27 psi on an fp black.

 

Yeah those are way to small for e85, pump gas you would be in pretty good shape. 1450s or above with either a walbro 400 or a double pumper would be a more proper setup for e85 and a black.

 

Hey, my friend. Yes, people underestimate the stock fuel system by great lengths.

Megatron is nearly finished.

 

Yes they do. What a lot of people don't realize is the stock fuel system is nearly -6 line. But the evo has been along around long enough now where looking into fuel setups, people will see that there is plenty of info out there. And to the second half of that yay

 

Oh yeah, FIC 1100s are gobbled up quickly with the FP Black, my friend.

 

actually, razorlab found that switching from the stock rail to an aftermarket rail on a 460 whp (GST's MD) evo allowed him to make another 20+ whp. for anyone making 500+ whp (DJ) on e85, a big rail is cheap insurance against uneven fuel/afrs across the cylinders.

At 500 whp, the stock fuel supply line causes 16-18 psi pressure increase at the pump. add 43 psi base pressure and say 27 psi boost pressure, and total pressure at the pump is 86-88 psi. there isn't much flow from a walbro 255 at that kind of pressure. when flow rate drops off, pressure at the rail starts dropping. most people don't realize how badly fuel rail pressure is falling off because up to a point, its possible to tune around it. another interesting tidbit is that pressure increase due to the fuel line goes as the square of the flow rate, so for instance at 550 whp, the pressure increase at the pump due to the supply line is 20-22 psi, and at 600 whp, its 23-26 psi. Again, add boost pressure and base fuel rail pressure to get total pressure at the pump. 90 psi is when the flow of most fuel pumps starts dropping like a rock. a significant fuel system upgrade is a good idea for anyone planning to make 550+ whp on e85. a single pump setup like a walbro 400/460 needs either an upgraded fuel supply line or a kenne bell boost-a-pump. a double pumper can work well up to 600 whp because the custom fuel hose that comes with it replaces the most restrictive part of the factory supply line (three very restrictive sharp 90 degree connectors).