Tripple pump config for street

[andrewtac]

Currently dual 267s on a fore 1e system, going to a level 2 and triple. I use boost reference for the 2nd pump and have no issues. I understand the risk and accept them. I was thinking about a 285 as my full time pump and the two 267s as the ones that come on with boost. V7YSI and 300 shot of nitrous, e85, so best case 1500 hp with the spray; want to size for that. Also idx1700s. Thoughts?

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[Proshop]

I just updated my setup to triple 285’s from triple 267’s to be safe and I’m only looking at just above 1k. Overkill and room to grow is not a bad thing as far as I’m concerned.

 

[Cory S]

I just updated my setup to triple 285’s from triple 267’s to be safe and I’m only looking at just above 1k. Overkill and room to grow is not a bad thing as far as I’m concerned.

That will go 1500-1600 whp on trip 285's and ID1700's

 

[Proshop]

That will go 1500-1600 whp on trip 285's and ID1700's

That’s the plan at some point!

 

[80FoxCoupe]

Currently dual 267s on a fore 1e system, going to a level 2 and triple. I use boost reference for the 2nd pump and have no issues. I understand the risk and accept them. I was thinking about a 285 as my full time pump and the two 267s as the ones that come on with boost. V7YSI and 300 shot of nitrous, e85, so best case 1500 hp with the spray; want to size for that. Also idx1700s. Thoughts?

I assume the nitrous system is wet with its own fuel pressure regulator. With that said ID1700 will be fine for the engine/blower HP. On ID'S website, I ran the calc at 35 psi, 25 on blower and additional 10 for the 300 shot to check fuel flow. Looks like 912lph needed. Ti285 flows about 340lph at 87psi (52 base, 25 blower and 10 nitrous). So three 285s could support 1020lph, so cutting it close! Maybe run 295s as the two primary and a 285 as the third.

 

[PC_GUARD]

I just updated my setup to triple 285’s from triple 267’s to be safe and I’m only looking at just above 1k. Overkill and room to grow is not a bad thing as far as I’m concerned.

Im not looking or needing to do this, but Im curious. How loud are those pumps in the car?

 

[Proshop]

Im not looking or needing to do this, but Im curious. How loud are those pumps in the car?

To be honest I don’t ever really notice them or hear them at all. I’m a FL boy thou so I drive with the windows down, so between that the exhaust and music I don’t hear anything.

 

[andrewtac]

I assume the nitrous system is wet with its own fuel pressure regulator. With that said ID1700 will be fine for the engine/blower HP. On ID'S website, I ran the calc at 35 psi, 25 on blower and additional 10 for the 300 shot to check fuel flow. Looks like 912lph needed. Ti285 flows about 340lph at 87psi (52 base, 25 blower and 10 nitrous). So three 285s could support 1020lph, so cutting it close! Maybe run 295s as the two primary and a 285 as the third.

Thanks for the help, was looking at that yesterday trying to figure it out.

 

[Todd]

Making 12-1300 on triple 267s and ID1700s.

 

[80FoxCoupe]

Making 12-1300 on triple 267s and ID1700s.

300hp worth of nitrous on top of that also? Supercharged setup use a bit more fuel than turbo cars also.

 

[andrewtac]

Fore said tripple 285s would give 1100lph. About what @80FoxCoupe calculated. They are working a quote for the upgrade. Slowly the Paxton car that was not going to be a race car is morphing into one, but will not get rid of AC, heated seats, and radio; that leaves a bit.

 

[80FoxCoupe]

Fore said tripple 285s would give 1100lph. About what @80FoxCoupe calculated. They are working a quote for the upgrade. Slowly the Paxton car that was not going to be a race car is morphing into one, but will not get rid of AC, heated seats, and radio; that leaves a bit.

My number being lower is likely due to the higher fuel pressure as I converted 300hp of nitrous to 10psi of boost. As you all know increased fuel pressure equates to lower flow.

 

[andrewtac]

That is what I figured. I gave him your numbers essentially.

 

[80FoxCoupe]

300hp worth of nitrous on top of that also? Supercharged setup use a bit more fuel than turbo cars also.

Have you thought about brushless?? Look at the 5gpm unit.

https://aeromotiveinc.com/product/b...2017-mustang-s197-s550-2018-2020-gt-ecoboost/

 

[Angrey]

I assume the nitrous system is wet with its own fuel pressure regulator. With that said ID1700 will be fine for the engine/blower HP. On ID'S website, I ran the calc at 35 psi, 25 on blower and additional 10 for the 300 shot to check fuel flow. Looks like 912lph needed. Ti285 flows about 340lph at 87psi (52 base, 25 blower and 10 nitrous). So three 285s could support 1020lph, so cutting it close! Maybe run 295s as the two primary and a 285 as the third.

At 13.5V and 87 psi, the 285 will "free flow" roughly 361 liters/hour. That doesn't account for head loss from lines and fittings or the loss from the siphon system. At 12.5V that free flow drops to about 290 liters/hour.

The easiest way to factor the head losses is just to add a few psi to the system (in order to deliver 87 psi to the rails, it's pumping slightly higher at the pump outlet) so let's just use 90 psi (3 psi drop to overcome the filter and lines and fittings) so at 13.5V that's about 340 liters/hour and at 12.5v that's 282 liters/hour.

So on the low voltage end, 3 pumps would be about 846 and at 13.5v about 1020. Then subtract off roughly 40 liters/hour for the siphon system, so between 806 and 980 liters/hour.

Lastly, 295's only work if all pumps are running all the time OR you run an external backflow (which defeats the purpose). If any pumps in the system don't have either an internal backflow or an external then it'll bleed/push fuel back through them into the tank if they're not pumping. (not to mention the startup issues).

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