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Old 08-24-2020, 12:23 PM   #1
20BooSTIn15
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Default Engine mods

I currently have a 15 sti that’s stage 3. I’m wondering if I do a front mount intercooler, headers, external waste gate, boost controller with a fp green turbo if that would be like 400 whp. Also how safe would this be on a stock block. Thank you guys.
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Old 08-24-2020, 04:28 PM   #2
WRXXXED
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Member#: 432652
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Location: Gap, PA
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2010 Subaru WRX STI
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Quote:
Originally Posted by 20BooSTIn15 View Post
I currently have a 15 sti that’s stage 3. I’m wondering if I do a front mount intercooler, headers, external waste gate, boost controller with a fp green turbo if that would be like 400 whp. Also how safe would this be on a stock block. Thank you guys.
Idk what stage 3 is but on that turbo you might want to run e85 to hit your goals. And if your on stock injectors thats not gonna cut it so throw in some ID1300s while youre at it. But what you mentioned should get you there. But if you want a true 400 car, the FP Black is what you want, the tuner can help keep the power band linear to preserve the stock motor.

This post was probably meant for general discussion because its still stock motor
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Old 08-24-2020, 05:35 PM   #3
igoiks
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I would never put anything bigger than dom 1.5 on stock location, i had fp red pump gas 430whp car sucked would never do it again
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Old 08-24-2020, 05:35 PM   #4
subaru_gc8
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Location: Orange County CA
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2004 WRX wagon
silver

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Quote:
Originally Posted by 20BooSTIn15 View Post
I currently have a 15 sti that's stage 3. I'm wondering if I do a front mount intercooler, headers, external waste gate, boost controller with a fp green turbo if that would be like 400 whp. Also how safe would this be on a stock block. Thank you guys.
youre gong to need something bigger than that unless you are going to do e85 I would try the new g 660 my self
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Old 08-24-2020, 05:52 PM   #5
20BooSTIn15
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Originally Posted by WRXXXED View Post
Idk what stage 3 is but on that turbo you might want to run e85 to hit your goals. And if your on stock injectors thats not gonna cut it so throw in some ID1300s while youre at it. But what you mentioned should get you there. But if you want a true 400 car, the FP Black is what you want, the tuner can help keep the power band linear to preserve the stock motor.

This post was probably meant for general discussion because its still stock motor


This is what I have done to my car COBB Accessport, SF Intake System, SF Airbox, SS 3" Downpipe, Cat-Back Exhaust, SS Turbo Heatshield, AEM High Flow Fuel Pump, Top Feed 1050x Fuel Injectors, Fuel Rails, Fuel Rail Line Kit, Fuel Pressure Regulator for Fuel Rail Kit, Subaru Throttle Body Coupler, Silicone Turbo Inlet and the. I want headers next and external waste gate with a little bigger turbo. Where I live there is no e85. So with those parts and without e85 will I be able to reach at least high 300 to the wheel ?
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Old 08-24-2020, 07:05 PM   #6
WRXXXED
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Quote:
Originally Posted by 20BooSTIn15 View Post
This is what I have done to my car COBB Accessport, SF Intake System, SF Airbox, SS 3" Downpipe, Cat-Back Exhaust, SS Turbo Heatshield, AEM High Flow Fuel Pump, Top Feed 1050x Fuel Injectors, Fuel Rails, Fuel Rail Line Kit, Fuel Pressure Regulator for Fuel Rail Kit, Subaru Throttle Body Coupler, Silicone Turbo Inlet and the. I want headers next and external waste gate with a little bigger turbo. Where I live there is no e85. So with those parts and without e85 will I be able to reach at least high 300 to the wheel ?
Thats a good list of parts, the 1050s can get you there, i have id1000s running pump and im at 430whp, if you want a true 400whp car, id try the black or a Garrett 35 series turbo with a smaller hotside to keep the spool as sock as possible but the green will for sure get you high 300s

People are mentioning the new Garrett 660 G-series but i have no experience with them so idk
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