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How much hp can the stock purple injectors on a b3 engine squeeze?
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:festiva: 1995 Kia Pride, 1.3 EFI, manual. :fred: -
18, maybe 19hp.
They should be a 19 lb/hr injector, IIRC, so a set could support roughly 150whp.1989 Carby L: Stock. Slow.
1998 Mustang Cobra: ported heads, cams, longtubes, 4.30 gears
2016 Focus ST: daily driven go-kart -
4x19= roughly 100 hp? Am I wrong in this?
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cant edit post... ugh... I will post the correct answer later... I was brainstorming and hit enter.. ugh..Comment
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Well, here is my 2¢..
Considering that most injectors only have a 80% duty cycle, and brake specific fuel consumption ( B.S.F.C. ) is .45-.50 for most N/A vehicles... so this means for each hp a engine produces it will use half a pound of fuel...
I am not positive what the psi in the fuel rail is but I am going to guess at 40 psi...
So if my math is right... 19 #'s for 4 cylinders at .50 BSFC and 80% DC, should be right around 120 Bhp.
That being said, if you account for 12-15% drivetrain loss, I am thinking that my original answer was not to far off... Someone help me out here... Does this sound right?Comment
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Once, I have read that the purple injectors flow 120 cc/min only which is 11.43 lbs/hr. So which one is true? 11 lbs/hr or 19 lbs/hr?
:festiva: 1995 Kia Pride, 1.3 EFI, manual. :fred:Comment
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I didn't find any information that they flowed 19, I just took the information that he supplied... I have an old injector chart... but I was unable to locate any Ford Seimens Deca Injectors that were purple.. ( doesn't mean they didn't exist ) I just didn't have them on my list... but a 12 # would greatly change that number, and would be more what I would tend to believe Ford supplied for these engines...Comment
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Originally posted by smokeshow View Post
By ford you mean mazda right?
As in nippon denso injectors...
It's a good thing you don't read the stickies, you might of learned something.
Poverty produces creativityComment
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I blew chunks out of two pistons by running lean on a sohc b6 with the stock festiva injectors and ecu. That may or may not be the injectors, but in my mind it's not worth the risk.OX SMASH!!Comment
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That would be why I didn't find them... LOL.. I was looking for Ford Seimens Deca.. and they are Mazda Nippon Denso.. I got to get used to this conversion/change from Ford to Mazda parts..Originally posted by muscle_Car1 View PostBy ford you mean mazda right? As in nippon denso injectors...
http://www.fordfestiva.com/forums/sh...=injector+sizeComment
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