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Injector and Maf size

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Old Jan 26, 2013 | 05:25 PM
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Default Injector and Maf size

Im putting together a 331 stroker with 11.5:1 compression along with Trick Flow heads and intake. What size injectors and MAF do I need? I contacted Trick Flow about heads and was told a 75mm Throttle body will be okay. Ill be installing a Glenn's Performance fuel system and some JPC Racing fuel rails.

Heads: Trick Flow 11R
Intake: Trickflow R-series
Throttle body: Accufab 75mm with EGR delete

Let me know if any more info is needed.
Old Jan 26, 2013 | 06:13 PM
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Do you know your expected/estimated horsepower? Are you going to run any boost?
Old Jan 26, 2013 | 07:28 PM
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No boost. I thinking/hoping to be close to 500 hp on motor.
Old Jan 26, 2013 | 07:47 PM
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What cam are you running with 11.5 compression?
Old Jan 26, 2013 | 07:56 PM
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Not sure just yet. Still have to call Comp and get something figured out. Id like about a .550 lift cam.
Old Jan 26, 2013 | 08:21 PM
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You're probably going to need the best starter money can buy.
Old Jan 26, 2013 | 08:23 PM
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Haha, Ive already got one that is supposed to start a 15:1 motor. Stocker would quick working when it got hot so I upgraded. Car is already built for the motor too. Once it goes in she'll be badass.
Old Jan 26, 2013 | 08:31 PM
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Yes sir, it'll be one quick pony for sure.
Old Jan 26, 2013 | 11:56 PM
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u may need 42s
Old Jan 27, 2013 | 08:02 AM
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Originally Posted by Boss_Hotrod
\ I contacted Trick Flow about heads and was told a 75mm Throttle body will be okay. .
LOL, no matter what size motor, 302, 331, 347, 363,408, ect ect they always recommend 75 and that's it, ever noticed trick flows tech line is the same as summit's............you want to make 500 as you state, don't bottleneck it.....also you don't mention cam??? valvetrain components will be key, before buying the heads I'd research and see if it's the standard heavy **** junk that comes on them, IMO, lightweight yet durable components are key for getting the most out of the combo.



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