Fuel injector flow data

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wicked-irocz
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Fuel injector flow data

Postby wicked-irocz » Mon Oct 31, 2005 10:14 pm

I have always for some reason thought that the 3100 had 16# fuel injectors and the 3400 (96-99) had 19# but after looking into this for nearly a whole day (im not kidding  :fire ) I found that 3400swap.com and Accel list the 3100s as 17# and mcgavin has them listed as 17.6# while the only place that has the 3400 listed is 3400swap.com and they say 19#.  I would really like to know the actual ratings so I dont have to pull these things out and flow them.  The 3100 injectors wouldnt be so hard since I have my fuel rail out but the 3400 would be as I dont have any.  Any info is much appreciated.  The part # for the 3400 injector is 17113573 and for the 3100 is 17113572.  they are a whopping one number off.


94 Beretta Z26 57,4xx miles
3100, auto, crank windows, power locks/trunk, A/C,
To many mods to list
-intercooler :shock:

Among beretta boards
1st Turbo 4t60-e
1st Turbo 3100
1st Turbo Z26
1st 94+ Turbo

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mcgavinz26
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Fuel injector flow data

Postby mcgavinz26 » Mon Oct 31, 2005 11:07 pm

maybe they offered 2 different kind of injectors over the years of the 3400?  The backyard mechanic in me wants to tell you "who gives a rats *** about one or two pounds difference in rating?"  

My 3400 runs strong on 17lb injectors @80psi that were in the 3100 originally.  I think the 3.1 had 16s.  The 3100 has 17s.  I'm not sure where I got the 17.6 number from.  I always thought they were just 17s.


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1994 Z26 - 3400, 5spd, supercharged, propane, megasquirt - RIP
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Chris88CL
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Fuel injector flow data

Postby Chris88CL » Mon Oct 31, 2005 11:36 pm

3400's got the multec II's in 2000+ (along with 3100's) and they flowed more.  Its really not worth your money to upgrade to any stock injector.  Like Mcgavin says, its a very small difference.

You plan on cranking the fuel pressure anyway, so just rely on that for the flow you'll require.



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wicked-irocz
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Fuel injector flow data

Postby wicked-irocz » Tue Nov 01, 2005 12:40 pm

(mcgavinz26 @ Oct. 31 2005,22:07)
Q
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My 3400 runs strong on 17lb injectors @80psi that were in the 3100 originally.

how much fuel pressure were you able to build with your stock pump?


94 Beretta Z26 57,4xx miles
3100, auto, crank windows, power locks/trunk, A/C,
To many mods to list
-intercooler :shock:

Among beretta boards
1st Turbo 4t60-e
1st Turbo 3100
1st Turbo Z26
1st 94+ Turbo

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1988GTU
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Fuel injector flow data

Postby 1988GTU » Tue Nov 01, 2005 2:47 pm

The life of a stock pump will not last long under constant high pressure.
Minds well upgrade to walbro.


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