LPFP - Magnafuel 750

[dyezak]

Why isn't anyone using a Magnafuel 750? I'm sure there is a reason, I'm just not getting it.

This is a 15a PWM 750lph e85 intank fuel pump. Being used in many supra, rx7, ls1, etc builds for 900-1100hp on full e85.

I am pretty sure our LPFP driver will handle driving this pump...I can't figure out why nobody has done it yet.

 

[dyezak]

@Dave @ Fuel-It! have you tinkered with this yet?

 

[R.G.]

Interesting. From what I've read
1. Heat. The single pump running all the time generates enough heat to boil fuel.
2. Noise. They are excessively loud


Not an in tank pump I believe but definitely worth researching a bit further.

 

[dyezak]

Interesting. From what I've read
1. Heat. The single pump running all the time generates enough heat to boil fuel.
2. Noise. They are excessively loud
Not an in tank pump I believe but definitely worth researching a bit further.

1. Heat - this is only a problem with individuals installing the pump and running it all the time at 100%. The fix is to run the pump via Pulse Width Modulation to have it run lower volumes at low demand times. Our cars run the pump at PWM already. So heat isn't a problem.

2. Noise - Yup, going to be louder than a Walbro 450 for sure, but while submerged it isn't as bad as an external mount.

3. It is an in tank pump....call Magnafuel, confirmed several times.

 

[R.G.]

Thing is loud as F lol

Maybe simple as cost? Equivalent of 4 wally 455s

 

[dyezak]

Yea, the pump alone is $475....you're spot on there. But the reduction in complexity of just having one pump is worth something to me alone.

 

[AntoanS4]

Yea, the pump alone is $475....you're spot on there. But the reduction in complexity of just having one pump is worth something to me alone.

I think it would still be cheaper than fuel it stg3

 

[dyezak]

Yea, I'm thinking a bucketless Magnafuel 750 with Holley Hydramat would be an elegant simple solution to fueling that would support all my LPFP needs.

 

[AntoanS4]

Yea, I'm thinking a bucketless Magnafuel 750 with Holley Hydramat would be an elegant simple solution to fueling that would support all my LPFP needs.

All we need now is to know if it would work on our cars

 

[dyezak]

All we need now is to know if it would work on our cars

I'm not sure...but hopefully Dave @ Fuel-It can tell us. Or if not, maybe I'll just buy one and give it the ole college try.

 

[doublespaces]

Thing is loud as F lol

Maybe simple as cost? Equivalent of 4 wally 455s

Looks like the pump is on the outside. Any videos of how it sounds intank?

 

[dyezak]

From outside:

From inside:

But I can't find any in tank mounted pumps with the car running. Here's an external mount that was inside the trunk running.

 

[doublespaces]

Sounds like hydraulics

 

[dyezak]

Sounds like hydraulics

Well. At least you won't forget about Dre?

 

[Omar@VaderSolutions]

This will blow the OEM fpr and filter into oblivion .... maybe that’s why , this will require external fpr/filter setup . New lines etc....

 

[Omar@VaderSolutions]

Also running duals is the more efficient way to do it , one pump will heat up . Two pumps will stay cooler and also “fuel efficient”

 

[dyezak]

This will blow the OEM fpr and filter into oblivion .... maybe that’s why , this will require external fpr/filter setup . New lines etc....

I made an assumption that due to our PWM drive the pump would be so under-driven during idle and low load that wouldn't be a concern. Again...I'm assuming. Yea, I'm making an ass out of u and me

 

[R.G.]

I know that with my rear lower seat panel removed I can hear my walbro pretty clearly. No chance I'm putting the risk of mind numbing buzzing inside my cabin. Might be able to offset it with some dynamat type material under the seat.

 

[dyezak]

I know that with my rear lower seat panel removed I can hear my walbro pretty clearly. No chance I'm putting the risk of mind numbing buzzing inside my cabin. Might be able to offset it with some dynamat type material under the seat.

No man, you're totally mistaken. It's just like the soothing sound of a dentist's drill. Nothing could be more calming.

 

[Omar@VaderSolutions]

I agree lol