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Forced Induction Forum
Discuss supercharging, turbocharging and even nitrous and water injection here.

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Old 01-29-2017, 12:17 AM   #1
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Join Date: Jan 2017
Location: Trenton, Ohio USA
Posts: 1
My Ride: 2003 BMW 325i
E46 Full custom build

Hi all
I'm assuming this would be the appropriate section for my post considering I will be doing this entire build myself. I need some assistance from you guys though.
I have a 2003 BMW 325i with the 2.5l M54 in it. Starting soon I plan to do a full 2.5l to 3.0l stroker (need to know what I will need for this). Also I am building a fully custom big turbo kit for my car which will be all custom and all hand made piping and work. I am trying to find out if I will need to run a stand-alone ECU and if so what will work for me. I want to push 600HP or at least very very close to it. I don't care how long it takes me, it will get done. I have the funds and I have the time. Also I am trying to find out what injectors and fuel pump I would need to run for e85 and if there is anything else you guys can throw out there to help me achieve my goal of 600HP on ethanol with a big precision turbo. I have already done brake upgrades, suspension work, and started some other mods to prepare for this build. All advice will help me.
Thank you guys very much.
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Old 01-29-2017, 10:10 AM   #2
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Join Date: Jun 2015
Location: New York City
Posts: 432
My Ride: 330ci coupe
There is a guy running on Stock engine 22pse of boost making 700whp , on E85 , I think he suses 1000cc injectors and stock ecu but for the ecu part im not sure
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Old 01-31-2017, 01:16 PM   #3
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Join Date: Jan 2014
Location: DC/MD/VA
Posts: 80
My Ride: 03 330ci5 94 840i6mt
pretty sure you are talking about hobbit. having a 3.0 push out 600 is right up at the limit of what the stock rods will take before they break. you might want to consider 400 hp as a more realistic target and size the turbo accordingly. with the open diff in that car you will have severe traction problems with 400 whp and one wheel peel
RRT- Epic - Dinan- ESS - Technik - Stoptech - TMS- Arc-8
to many parts to list, i'm overdue for a build thread..
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