LPFP - Magnafuel 750

dyezak

Major
May 4, 2017
1,768
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Plano TX
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335is
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.
 
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R.G.

Lieutenant
Nov 17, 2016
669
325
0
Henderson, NV
Ride
E92 335, F10 M5
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

Major
May 4, 2017
1,768
1,515
0
Plano TX
Ride
335is
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.
 
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dyezak

Major
May 4, 2017
1,768
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Plano TX
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335is
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

Private
Aug 30, 2017
32
6
0
Ride
2011 335is
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
 

AntoanS4

Private
Aug 30, 2017
32
6
0
Ride
2011 335is
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

Major
May 4, 2017
1,768
1,515
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Plano TX
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335is
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.
 

dyezak

Major
May 4, 2017
1,768
1,515
0
Plano TX
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335is
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 :)
 
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R.G.

Lieutenant
Nov 17, 2016
669
325
0
Henderson, NV
Ride
E92 335, F10 M5
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

Major
May 4, 2017
1,768
1,515
0
Plano TX
Ride
335is
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.