Procharger P1X Stage 2 Pulley Swap

[Maxlab]

Hi,
I’m currently running a 4.38 pulley making about 12.5 of boost 750 whp
If I drop to a 4.25 Pulley, how much more boost or horse power will I pick up. Not sure if I should drop two sizes or one size. Curious to know how much I will pick up by dropping a pulley size down.
Thanks

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[80FoxCoupe]

15-17 or 18up?

 

[Maxlab]

15-17 or 18up?

Hi it’s a 2017

 

[SolarFlare]

Would be nice to have more info

 

[Jackson1320]

Almost nothing. It’s like 1000 rpm on you procharger. Maybe 1psi

 

[80FoxCoupe]

Hi it’s a 2017

1.5 psi probably, 35-40whp is likely

 

[80FoxCoupe]

I have a 3.70 and a 3.85 for ya

 

[Jackson1320]

I would look at a 4.00 or smaller

 

[Jackson1320]

3.7 will max out your procharger at the recommended limit

 

[Jackson1320]

Hi,
I’m currently running a 4.38 pulley making about 12.5 of boost 750 whp
If I drop to a 4.25 Pulley, how much more boost or horse power will I pick up. Not sure if I should drop two sizes or one size. Curious to know how much I will pick up by dropping a pulley size down.
Thanks

What kind of mods do you have with it and can you supply enough fuel. Pump or e85?

 

[Maxlab]

Would be nice to have more info

Stock block, E-85, Double Pump Return system, Kooks headers, 3 inch exhaust, Gt350 ported mani
Car is currently making 750 whp seeing 19 degrees of timing. Also it’s a Auto.

 

[Maxlab]

I have a 3.70 and a 3.85 for ya

I think that will be to much on my stock block.
Thanks

 

[SolarFlare]

You’d likely make 30whp from the pulley swap, maybe 1psi.

 

[80FoxCoupe]

I think that will be to much on my stock block.
Thanks

It will be fine.

 

[ProChargerTECH]

Like 1 psi...

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