Fueling & Injection Fuel Pumps | Injectors | Rails | Regulators | Tanks

How much injector is needed

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Old 04-25-2011, 04:06 PM
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Default How much injector is needed

a forged 355 lt1.. le2 heads 11.3:1 compression cc306 cam stock intake stock throttlebody 6speed. Will be hit with a 250 shot wet kit from time to time..
Old 04-25-2011, 04:12 PM
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btw i already have a walboro255 and the hotwire kit
Old 04-25-2011, 04:34 PM
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(Estimated HP) x (BSFC) / # of cylinders x Max Duty Cycle

Example- (600 HP) x .6 / 8 x .80= 36lb per hour @ 43.5 PSI

(Brake Specific Fuel Consumption)BSFC= Pounds of fuel burned to support 1HP for 1 hour. Gasoline Engines will typically be between .4 -.7 depending on how efficient the engine is.

Standard Injectors are Tested at 43.5 psi

Last edited by 02_camaroz28; 04-25-2011 at 04:41 PM.
Old 04-25-2011, 07:54 PM
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36# or 42# will be fine. if you plan for future mods I would just get 42#

the wet kit will be nice. with the power you will make i would go ahead and get 42#
Old 04-26-2011, 07:26 AM
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Thats what i was thinking.. Thanks for the heads up.. i was starting to look at 30#.. LOL
Old 04-26-2011, 08:55 PM
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Originally Posted by speedracer2536
Thats what i was thinking.. Thanks for the heads up.. i was starting to look at 30#.. LOL
oh no no. the stock ones are 28.8#
Old 05-11-2011, 10:09 AM
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stock ones are actually 24#.. Its for lt1
Old 05-11-2011, 02:34 PM
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We have a few fuel calculators on our website you can use to play around with different power goals, fuels, system pressures, etc.

http://www.deatschwerks.com/fuel-calculators/

Looks like a 42# would be a good size for what you are looking to do on spray.




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