what injectors to get

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May 14, 2012 | 10:35 AM

#11

EasternAggie

Diesel Bomber

Joined: Jul 2010

Posts: 2,139

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From: Broken Bow, Oklahoma

Quote:

Originally Posted by turbo2332

area = pie R squared

7x.01's are smaller than 5x.012's
.0005497 vrs .0005654

while 5x.014's are = to .0007696 sq in. which are much bigger than 7x.01's

There is more to the rate of flow of an injector that just cross-sectional area.

I know of at least one dyno sheet that shown that HP numbers for 5x.014 VCO injectors and 7x.010 SAC injectors are almost identical, only 0.5hp apart, with torque numbers about 30ftlbs less for the 7 holes. Now if the comparison was between 5x.014's and 7x.010's, with both SAC, there is a good chance the 5x.014 would win the battle, but I have not seen this dyno tested.