Quick Question - Brian Crower Stroker Kit

WhatnowGamer

BrianCrower.com

On this stroker kit, how much pounds of boost will I be able to hold up?
I'm looking to build internals on top of this stroker kit, so what type of horsepower do you think it'll run with a built engine on this stroker kit?
What turbo kit will work well with this stroker kit?

Thanks for the help

COSMO

What are your power goals and do you plan on putting that power down to the ground or just want high dyno numbers. Most any turbo kit these days can get you where you want to be.

zguynate

Also, this stroker kit will already be forged. So this kit will make your bottom end "built".

Like Cosmo said, you can't go wrong with the turbo kits available. The main 3 seem to be Boosted Performance, AAM, and Fast Intentions. Fast Intentions is def a forum favorite. All 3 of those will get you to your goals with the right planning (turbo sizes and appropriate fuel upgrades).

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2009 370z touring w/sports package

WhatnowGamer

No certain power goals, I'm looking to see the max power I can get. Definitely planning on putting that power to the ground though.


I see, I was thinking of buying the FI TT kit, but I'm wondering with the combination of the stroker kit and the FI TT kit, how much pounds of boost will I be able to hold up?

I'm also planning on purchasing

Air: AAM COMPETITION 370Z R-LINE 3" TRUE DUAL EXHAUST, AAM COMPETITION 370Z 2.5" RESONATED TEST PIPES, Nissan 370Z 409 Stainless Steel Headers - Ceramic Coated, FI TT Kit

Fuel: 370Z DRAG RACE R-LINE TWIN PUMP FUEL SYSTEM, AAM COMPETITION 370Z FUEL RAIL AND LINE KIT, INJECTOR DYNAMICS ID2000 INJECTORS

Oil: AAM COMPETITION 370Z R-LINE OIL COOLING SYSTEM, MISHIMOTOR 370Z 66 DEGREE RACING THERMOSTAT AND HOUSING, Mishimoto Radiator

Also planning on purchasing other performance parts such as headgasket, ECU, clutch, differential, studs, etc..

I'll also be getting necessary parts to go along with the power such as brakes, sway bars, coils, racing seats & harnesses, etc..

So, with a FULLY built engine and all other necessary requirements, how much boost do you all suggest I'll be able to hold up?

Lt8Che

I have the stroker kit FS if you're interested. With low compression for boosted applications.

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The Black Pearl G37xTT

Chuck33079

How much boost is a function of turbo choice. 10psi out of a huge turbo is a lot more air than 10 psi out of a small one, so you can't just ask "how much boost".

Also, FI has a 3" exhaust and oil cooler and your fuel system should come from CJM. Ditch the AAM and mishimoto stuff. You don't run headers with a turbo.

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2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

cofo11

10psi is 10psi as the measurement is not taken at the turbo but out of the downstream system, (ie intake pipes and manifold). Now a larger turbo will make a higher boost number and will be running at a much lower percentage of capacity than a smaller turbo at a given boost number. That's where the benefits are derived.

Sent from my SAMSUNG-SM-N915A using Tapatalk

Chuck33079

You have to take flow into consideration. 10psi out of a large turbo is a lot more cfm than the same psi out of a small turbo.

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2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

cofo11

No, it is not. A larger turbo has the potential to flow more cfm and will be using a smaller percentage of its flow potential at the same PSI than a smaller turbo would, but 10 PSI is 10 PSI. If the downstream tubes are larger it would take more volume of air to create 10 lbs of pressure but you would still only have 10 PSI.

PSI is a function of pressure, not volume. The reason it is called FORCED Induction is that you are forcing air into the motor at a rate exceeding what the motor pulls on its own. You can have an unlimited volume (vented to the atmosphere right off of the manifold) of air available and (assuming a correctly designed intake ie no flow restriction) will still only pull in what the motor pulls through its intakes. When you add FI you are utilizing the pressure (PSI bar etc) the device creates to force more air into the motor. Thus 10PSI of air entering the same intake manifold will always be the same 10 PSI of air no matter the size of the pump. The only way to get more air into the motor is to increase the pounds per inch.


What you are describing with the "more cfm" of the larger compressor is pushing more volume into the same space thus raising the PSI of the system.

Chuck33079

Ok. So when I look at compressor maps showing flow for different sized turbos showing dramatically different cfm at the same PR, what am I missing?

Like in the following: Compressor maps - examples and explanation

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2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

COSMO

I second this recommendation...


(your fuel system should come from CJM)

VSS370z

Plus you won't need test pipes when Fast Intentions provide different options of downpipes for their turbo applications.

bullitt5897

I would shy away from ordering a BC stroker... I have heard horror stories...

That and I have held the OEM, BC and Mine all side by side. The OEM and Mine were much better quality.

Mine is a private label crank for GTM but here is the manufacturer:
Billet Crankshafts | Crankshaft Repair - We Fix Crankshafts - Marine Crankshaft, Inc. - Outboard Crankshaft Repair

Being as I have span the gamut of power levels for this platform... I have had my hands on a 600whp car all the way up to my current 1000whp car soon to be alot more. I will give you some sound advice that will spare your wallet.

The 3.7L is more than capable of making 1000whp. I would get a closed deck block go with a stage 2 Fast intentions kit with all the options. I would look to CJM for your fuel needs or if your a ways out Fore innovations may have a solution for us at a GOOD price. Each manufacturer of their turbo kits has an ideal setup and after talking with multiple manufacturers my money is on Tony and Team @ FI. Their kit has the best design to date for mid mount twins and is more than enough to get you to any power goal you want. ohhh and as far as clutches go stick to OS giken double for anything under a 1000whp you wont regret it.

Remember speed costs money... how fast can you afford to go?

My first round cost me greatly! my second round is going to cost me nearly $20k just switching kits and gettign upgrades for parts I expected to break.

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Shop Cars: 2013 318whp Nismo VspecII 370z *SOLD*, 2009 1000hp+ 93oct 4.0L TT 370z Fast Intentions STAGE 4 #054

COSMO

And his shiat afterwards better put out or he's going to catch A lot of Hell from me... lol But as much as I hate to admit it he's right about the price point. How deep in those pockets are you willing go? Remember in the 350z days 400-500whp used to be the **** but now the bar is constantly being pushed higher and higher..

WhatnowGamer

Yeah, I don't have any idea about the reliability of certain parts, but I am looking to do the best and most reliable build possible at the same time. Any help would be appreciated