Fuel injector size gasoline

Joined
Apr 27, 2023
Messages
6
Good day, gentlemen!
Can someone tell me if an injector flows 203-237cc for 30 seconds at 300kpa that means it flows 406-472cc in a minute!
And what is the correct size in lb/hr for this specific injector? Try to find an alternative in automotive parts!
This is what manual say:
 
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Pre-coffee answer:

Question 1 - Math don't lie - yes, those are equivalent flow rates for 30 second and 1 min.

Question 2 - You are trying to convert volume/time to weight/time and so you will have to look up the density of gasoline in appropriate units at some reasonable temperature and multiply the volume by the density to get the weight and then multiple by 60 to get /hour.

See....dimensional analysis is useful!
 
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“An alternative in auto parts” - why? I mean, honestly, if you have a fuel injected car, why replace the injectors with an “alternative”? Why not use the original injectors?

Where are you located that you can’t get injectors?

Better than replacements, by the way, is having them rebuilt by a good shop.

I’ve had several sets of injectors rebuilt, and when they are removed from the car, sent off, re-done, and re-installed, I know that they fit, and that the flow rate is correct.

If you’re in the US - I recommend this guy:

https://hurstinjectorservice.com/
 
I am in Canada. It is the injector from marine engine 250hp and the quote for 1 injector from dealer was more than $400. What?
 
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Good day, gentlemen!
Can someone tell me if an injector flows 203-237cc for 30 seconds at 300kpa that means it flows 406-472cc in a minute!
And what is the correct size in lb/hr for this specific injector? Try to find an alternative in automotive parts!
This is what manual say:
Thanks for the plug Astro. AFAIK there are no comparable automotive injectors for this engine, does this engine use the small plastic injectors or the large metal ones?
The large ones are are Yamaha HPDI injectors.

Which style are in the engine, they may be a different color. On the large one the injector is in the head up to the large metal ring.

hpdi.webp
yam 250.webp
 
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