600whp on a single 450 with e85
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From: Uniontown, Pa
600whp on a single 450 with e85
I've seen a few threads and spoke to a few big names in the evo world, I'm switching to e85 and want to make 600wheel I'm running a built 2.4 custom apexi turbo kit 3" open exhaust, gsc r2 cams, curt brown head/intake/tb 4" Ets front mount,buschur cop kit on speed density i picked up fic 2150s, the 450 with stm rewire kit. I was told I could make 585wheel with the fuel pump and the rewire do you guys agree and what would I need to hit the 600 If not possible.
I've seen a few threads and spoke to a few big names in the evo world, I'm switching to e85 and want to make 600wheel I'm running a built 2.4 custom apexi turbo kit 3" open exhaust, gsc r2 cams, curt brown head/intake/tb 4" Ets front mount,buschur cop kit on speed density i picked up fic 2150s, the 450 with stm rewire kit. I was told I could make 585wheel with the fuel pump and the rewire do you guys agree and what would I need to hit the 600 If not possible.
My 450 maxed out at 520 on a mustang dyno and it wasn't rewired.
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Well it's on scat h-beams right now so I don't want to go ***** out with it. In the winter I'm probably going to go with a english 2.2 or buschur 2.3 shortblock that way I can wind out the rpm more .I've been told to not turn it past 8k right now. I have a t4 divided top mount manifold that's waiting to get a 6466 on it so I'm gonna shoot for 800+whp on the new shortblock. But for right now I want 600wheel anything above that is a bonus to me.
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It's an awd 5000-fx dyno that's the closest to me tscomp and buschur are about 3-4hrs from me
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I made 720whp on a Mustang dyno with a single 450 pump on E85. Now, this was on a Supra, but the pump will flow that amount of fuel. But, that was it. It went lean beyond that.
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I made 550whp on a Mustang dyno and trapped 145mph with a rewired 450 with fuel filter removed from pump housing and drilled siphon. I ran -6 line too but I don't think that did anything.
This was 34lbs on 6466 and it held pressure fine.
This was 34lbs on 6466 and it held pressure fine.
From my understanding, this is absolutely a 700hp capable pump on E85.
In fact, that's exactly what i'm trying to do!
I'm using the walbro 450 with the STM rewire, fuel lab FPR, upgraded fuel lines front and back, and FIC 2150cc.
At 13 volts, the Walbro 450 e85 pump flows 455LPH at 30 PSI. If my math is correct, that gives us about 7583.3 cc/ min of fuel on the pump side and 8600cc/min of fuel on the injector side.
That makes for a pretty damn matched set up if I do say so myself.
I know that people have run dual walbro 255 for a long time with a hobbs switch and the chances of pump failure are slim, but what if one of these pumps fail at WOT ?
Your AFR's hit the clouds and if you don't let off so do your rods!
That being said, I would still buy a double pumper if this pump doesn't take me to my goals.
-pal215
In fact, that's exactly what i'm trying to do!
I'm using the walbro 450 with the STM rewire, fuel lab FPR, upgraded fuel lines front and back, and FIC 2150cc.
At 13 volts, the Walbro 450 e85 pump flows 455LPH at 30 PSI. If my math is correct, that gives us about 7583.3 cc/ min of fuel on the pump side and 8600cc/min of fuel on the injector side.
That makes for a pretty damn matched set up if I do say so myself.
I know that people have run dual walbro 255 for a long time with a hobbs switch and the chances of pump failure are slim, but what if one of these pumps fail at WOT ?
Your AFR's hit the clouds and if you don't let off so do your rods!
That being said, I would still buy a double pumper if this pump doesn't take me to my goals.
-pal215
Thread Starter
Newbie
Joined: Feb 2016
Posts: 24
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From: Uniontown, Pa
From my understanding, this is absolutely a 700hp capable pump on E85.
In fact, that's exactly what i'm trying to do!
I'm using the walbro 450 with the STM rewire, fuel lab FPR, upgraded fuel lines front and back, and FIC 2150cc.
At 13 volts, the Walbro 450 e85 pump flows 455LPH at 30 PSI. If my math is correct, that gives us about 7583.3 cc/ min of fuel on the pump side and 8600cc/min of fuel on the injector side.
That makes for a pretty damn matched set up if I do say so myself.
I know that people have run dual walbro 255 for a long time with a hobbs switch and the chances of pump failure are slim, but what if one of these pumps fail at WOT ?
Your AFR's hit the clouds and if you don't let off so do your rods!
That being said, I would still buy a double pumper if this pump doesn't take me to my goals.
-pal215
In fact, that's exactly what i'm trying to do!
I'm using the walbro 450 with the STM rewire, fuel lab FPR, upgraded fuel lines front and back, and FIC 2150cc.
At 13 volts, the Walbro 450 e85 pump flows 455LPH at 30 PSI. If my math is correct, that gives us about 7583.3 cc/ min of fuel on the pump side and 8600cc/min of fuel on the injector side.
That makes for a pretty damn matched set up if I do say so myself.
I know that people have run dual walbro 255 for a long time with a hobbs switch and the chances of pump failure are slim, but what if one of these pumps fail at WOT ?
Your AFR's hit the clouds and if you don't let off so do your rods!
That being said, I would still buy a double pumper if this pump doesn't take me to my goals.
-pal215
Thanks Again for all the support!
From my understanding, this is absolutely a 700hp capable pump on E85.
In fact, that's exactly what i'm trying to do!
I'm using the walbro 450 with the STM rewire, fuel lab FPR, upgraded fuel lines front and back, and FIC 2150cc.
At 13 volts, the Walbro 450 e85 pump flows 455LPH at 30 PSI. If my math is correct, that gives us about 7583.3 cc/ min of fuel on the pump side and 8600cc/min of fuel on the injector side.
That makes for a pretty damn matched set up if I do say so myself.
I know that people have run dual walbro 255 for a long time with a hobbs switch and the chances of pump failure are slim, but what if one of these pumps fail at WOT ?
Your AFR's hit the clouds and if you don't let off so do your rods!
That being said, I would still buy a double pumper if this pump doesn't take me to my goals.
-pal215
In fact, that's exactly what i'm trying to do!
I'm using the walbro 450 with the STM rewire, fuel lab FPR, upgraded fuel lines front and back, and FIC 2150cc.
At 13 volts, the Walbro 450 e85 pump flows 455LPH at 30 PSI. If my math is correct, that gives us about 7583.3 cc/ min of fuel on the pump side and 8600cc/min of fuel on the injector side.
That makes for a pretty damn matched set up if I do say so myself.
I know that people have run dual walbro 255 for a long time with a hobbs switch and the chances of pump failure are slim, but what if one of these pumps fail at WOT ?
Your AFR's hit the clouds and if you don't let off so do your rods!
That being said, I would still buy a double pumper if this pump doesn't take me to my goals.
-pal215
I'm not saying the single is bad, my single 450 performs flawlessly with a dual voltage rewire on a stock fuel system other than injectors and drilling the siphon to 9/64's. I'm just saying your logic on the double pumper is a bit flawed.
What if your single pump takes a ****? Same principle. And loosing one of the pumps in the double pumper setup is like hitting fuel cut. You know something is wrong right away, and you lift. Nothing gets hurt.
I'm not saying the single is bad, my single 450 performs flawlessly with a dual voltage rewire on a stock fuel system other than injectors and drilling the siphon to 9/64's. I'm just saying your logic on the double pumper is a bit flawed.
I'm not saying the single is bad, my single 450 performs flawlessly with a dual voltage rewire on a stock fuel system other than injectors and drilling the siphon to 9/64's. I'm just saying your logic on the double pumper is a bit flawed.
I was thinking that having two pumps could potentially keep the engine on long enough to run super lean if just one pump failed because fuel would still be circulating.
-pal215
Last edited by Pal215; Mar 23, 2016 at 11:27 AM.
I understanding where you're coming from, but wouldn't having one pump fail cause the engine to quickly die at WOT before any internal damage has taken place since it would just use up the fuel supply left in the rail?
I was thinking that having two pumps could potentially keep the engine on long enough to run super lean if just one pump failed because fuel would still be circulating.
-pal215
I was thinking that having two pumps could potentially keep the engine on long enough to run super lean if just one pump failed because fuel would still be circulating.
-pal215
I had a "similar" experience in my car. The boost reference line came off the solenoid that activates the high voltage circuit for the fuel pump. So my walbro 450 went from seeing 14v, to 8-9 volts while in boost at 6500rpms at 30psi. Car sounded like it lost 3 cylinders instantly. I lifted, no harm done. The log showed AFR went full lean. Put the boost reference line back on with 2 zipties and haven't had an issue since.
It would still run on one pump if one of the pump in a double pumper failed, but it's going to fall flat on its face.
I had a "similar" experience in my car. The boost reference line came off the solenoid that activates the high voltage circuit for the fuel pump. So my walbro 450 went from seeing 14v, to 8-9 volts while in boost at 6500rpms at 30psi. Car sounded like it lost 3 cylinders instantly. I lifted, no harm done. The log showed AFR went full lean. Put the boost reference line back on with 2 zipties and haven't had an issue since.
I had a "similar" experience in my car. The boost reference line came off the solenoid that activates the high voltage circuit for the fuel pump. So my walbro 450 went from seeing 14v, to 8-9 volts while in boost at 6500rpms at 30psi. Car sounded like it lost 3 cylinders instantly. I lifted, no harm done. The log showed AFR went full lean. Put the boost reference line back on with 2 zipties and haven't had an issue since.
I see. Well that's good to know for a future setup. It's good that you caught that voltage drop.
I remember the first time I experienced fuel cut at WOT. It scared the hell out of me. Almost like a tow truck suddenly latched onto my a$$.
-pal215
