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Injector Sizing

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Old 01-26-2017, 07:40 PM
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Default Injector Sizing
I am trying to figure out what injectors I need for the 403 I am building. Normally aspirated and I am looking for 600 crank hp on pump gas. Using the deatschwerks calculator and a max duty cycle of 85%, I get #40 injectors.

I am thinking of getting a set of new #42 bosch injectors (should keep the duty cycle in a decent zone and still leave me a little bit of headroom).

Sound right?

Thanks
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Old 01-27-2017, 10:01 AM
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Old 01-27-2017, 10:37 AM
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42lb injectors will work just fine for an NA 403.
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Old 01-27-2017, 10:41 AM
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You could also look for the green top injectors, which would be 44 lb/hr. I'm running Accel 44 lb/hr injectors on my setup, which makes 447 rwhp. Plenty of injector left.
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Old 01-27-2017, 10:42 AM
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Originally Posted by Sales3@Texas-Speed
42lb injectors will work just fine for an NA 403.

LOL.. that's great. I was getting them from you. (I'm sending Seth an email - if this is Seth here - Hey Seth!)



(I wrote Phil - Phil is at Advanced Induction... sorry Seth!)

thanks
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Old 01-27-2017, 10:44 AM
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Originally Posted by Rise of the Phoenix
You could also look for the green top injectors, which would be 44 lb/hr. I'm running Accel 44 lb/hr injectors on my setup, which makes 447 rwhp. Plenty of injector left.


Thanks for the input. Appreciate it!
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