How much power can 50# injectors support
Thread Starter
Melting Slicks
Joined: Feb 2005
Posts: 3,471
Likes: 43
From: Auburn MA
How much power can 50# injectors support
I have a dyno tune session coming up in a little over a month and i am wondering if i have enough injector to hit my power goals. I have Bosch 50# injectors, how much power can they support before they are maxed.
Race Director
Joined: Sep 2001
Posts: 14,685
Likes: 753
From: NEwhere Ohio
Ive got some 60 lb/hr injectors i bought in 2010 thru racetronix that were a balanced set and working fine. I used these on my supercharged 1993
i removed them to install 80 lb/hr injectors when i went to e85 if youre interested
i removed them to install 80 lb/hr injectors when i went to e85 if youre interested
Last edited by dizwiz24; Mar 31, 2023 at 07:09 PM.
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Drifting
Joined: Jun 2020
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From: Stay dangerous my friends
Very different formula for supercharged engines, its not even close. Use injectors that your ECM and injector drivers support and where you can input data to the ECM. Fuel Tech makes great injectors to support big power with a blower.
For sizing, there are some calculators online and formulas online.
For sizing, there are some calculators online and formulas online.
Thread Starter
Melting Slicks
Joined: Feb 2005
Posts: 3,471
Likes: 43
From: Auburn MA
I'll keep this in mind but I think I may need more injector than 60lbs
Pro
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From: Wisconsin
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800whp with e85 and boost is going to require much larger injectors than 60lb/hr. If you figure no more than 80%duty cycle you're going to need anywhere between 103 lb/hr and 112 lb/hr injectors depending upon if it's supercharged or turbocharged.
Don't forget your fuel pump. You're going to need a pretty good pump to supply the fuel for that much power.
Don't forget your fuel pump. You're going to need a pretty good pump to supply the fuel for that much power.
Thread Starter
Melting Slicks
Joined: Feb 2005
Posts: 3,471
Likes: 43
From: Auburn MA
800whp with e85 and boost is going to require much larger injectors than 60lb/hr. If you figure no more than 80%duty cycle you're going to need anywhere between 103 lb/hr and 112 lb/hr injectors depending upon if it's supercharged or turbocharged.
Don't forget your fuel pump. You're going to need a pretty good pump to supply the fuel for that much power.
Don't forget your fuel pump. You're going to need a pretty good pump to supply the fuel for that much power.
Drifting
Joined: Jan 2005
Posts: 1,354
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From: San Antonio Tx
Call these guys. They are experts on fuel systems. Also have calculators on their website. https://deatschwerks.com/pages/about-us
Pro
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From: Wisconsin
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Are you running a supercharger or turbo? That makes a small difference in the injector tor size calculator between the two.
Thread Starter
Melting Slicks
Joined: Feb 2005
Posts: 3,471
Likes: 43
From: Auburn MA
I misread that somehow. Thought you were planning on running e 85 instead of gasoline. In that case: looks like 80 lb injectors should do it at 80% duty cycle. 1000cc or 100lbs injectors should be plenty with room to grow.
Are you running a supercharger or turbo? That makes a small difference in the injector tor size calculator between the two.
Are you running a supercharger or turbo? That makes a small difference in the injector tor size calculator between the two.
Last edited by Impala Balko; Apr 2, 2023 at 10:11 AM.