Injector size, confused
Thread Starter
Le Mans Master
Joined: Feb 1999
Posts: 9,959
Likes: 40
From: South Carolina
St. Jude Donor '03 & '05
Injector size, confused
I was on another forum and there is a company trying to sell real large injectors to guys/girls. 32-40+ lb/injectors. And useing there formulas with my motor, they are saying I need 37# injectors at 42 psi with a brake specific fuel consumption of .5(I guess this is a standard number used for NA cars). Well my TTS datamaster shows my duty cycle is around 85%, 5 % higher than they recomend, at WOT with 30# SVO injectors at 42 psi.
Heres a link to a calculator that says about the same thing, estimateing me at 520 fwhp.
What do you guys think?
http://www.rbracing-rsr.com/fuelinjectors.htm
http://www.rceng.com/technical.htm
Heres a link to a calculator that says about the same thing, estimateing me at 520 fwhp.
What do you guys think?
http://www.rbracing-rsr.com/fuelinjectors.htm
http://www.rceng.com/technical.htm
Le Mans Master
Joined: Jan 2000
Posts: 6,595
Likes: 1
From: Thornton CO
I think you are fine with the 30# injectors. Jesse proved that you don't need the big # injectors unless you are WOT all the time, like a road course or something. I still run the stock 24# ones in my 383 but I am always above 5,000' in elevation and my injectors only run 90% at 5,500 rpm and above.
