Single 450 + E85 - 650rwhp doable?

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Jul 2, 2019 | 11:55 AM

30th t/a

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Single 450 + E85 - 650rwhp doable?

Single 450 running E85 with 80lb injectors. Think it be okay for 630-650rwhp through a 6 speed?

Jul 2, 2019 | 04:40 PM

Kfxguy

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450 What?

Jul 2, 2019 | 07:57 PM

30th t/a

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Quote:

Originally Posted by Kfxguy

450 What?

Walbro

Jul 2, 2019 | 09:17 PM

Kfxguy

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Quote:

Originally Posted by 30th t/a

Walbro

Lol. I’m an idiot.

Jul 3, 2019 | 08:50 AM

panda240ss

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From: MIAMI

in my opinion i always get a bit bigger system in case i wanna go bigger power down the road.

for example. im doing 142lbs injectors with dual 450s thru a th350 just to make sure i dont run out of pump or injectors and i just want 700 750

Jul 3, 2019 | 12:09 PM

AUS Injection

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Message sent

Jul 4, 2019 | 12:40 AM

KimmoT

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I was getting 620hp single Walbro 450 with BAP and e85. I have to lower base fuel pressure 4->3 bar to get more flow to pump. Then FIC 1000cc injectors almost 100% IDC

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Jul 4, 2019 | 06:13 AM

KimmoT

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Quote:

Originally Posted by 30th t/a

What transmission were you running when you made 620rwhp?

Stock Corvette C5 T56 with spec clutch.

Jul 4, 2019 | 08:29 AM

#10

30th t/a

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Anyone have experience with the Walbro 525? I searched on this site but theres very little info on it.
Is it a drop in replacement like the 450?

Last edited by 30th t/a; Aug 6, 2019 at 10:06 AM.

Aug 6, 2019 | 10:07 AM

#11

30th t/a

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Walbro 525??...Anyone with experience with this pump?

Aug 6, 2019 | 10:28 AM

#12

JoeNova

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The 525 is a stock Hellcat fuel pump. There shouldn't be any concerns with an OEM pump.

Aug 6, 2019 | 12:09 PM

#13

30th t/a

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Quote:

Originally Posted by JoeNova

The 525 is a stock Hellcat fuel pump. There shouldn't be any concerns with an OEM pump.

Do you know if I can run this Walbro 525 in my 02 WS6? Is it a drop in (like the walbro 450)?
Im hoping this will fit in the bucket and I can hook up a hot wire kit and be done and be good for 630-650 on e85.
They say the pump supports 700+ on e85.

Aug 6, 2019 | 02:19 PM

#14

fif_gen_powa

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Quote:

Originally Posted by 30th t/a

It's same size and direct swap for a walbro 450. Make sure you have 10ga wires and proper size fuse

Aug 11, 2019 | 10:10 PM

#15

dumetre

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Quote:

Originally Posted by KimmoT

I was getting 620hp single Walbro 450 with BAP and e85. I have to lower base fuel pressure 4->3 bar to get more flow to pump. Then FIC 1000cc injectors almost 100% IDC

Was that with stock lines?

Aug 12, 2019 | 11:22 AM

#16

KimmoT

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Quote:

Originally Posted by dumetre

Was that with stock lines?

Yes i had stock lines from tank to engine bay. When add adjustable fuel pressure regulator, then only change fuel rails and those short fuel lines.

Aug 12, 2019 | 05:14 PM

#17

imma_stocker

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Maybe these will help.

Walbro 450lph pump flow chart

and the Hellcat pump

Aug 14, 2019 | 06:12 AM

#18

joyridin'

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Quote:

Originally Posted by dumetre

Was that with stock lines?

The outlet line on a 525 is larger than a 450. I was going to go with one, but most of the modular fuel pump assemblies do not have a large enough line. They went from a 10mm to an 11 mm outlet. Doesn't seem like much until you try cramming that rubber fuel line over the outlet and realize it isn't going to fit.