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  #1  
Old 07-09-2008, 10:33 AM
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are injectors of 617 turbo the same as 617 N/A?

I can get a good set of injectors out of a 617 non turbo, but mine is a turbo... are these injectors the same or is there a difference in pop pressure/spray pattern?

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  #2  
Old 07-09-2008, 10:45 AM
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I think the bodies are the same, but the injectors themselves are different, and of course the pressures are higher.
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  #3  
Old 07-09-2008, 11:09 AM
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Pop pressure is different, otherwise the same. Using non-turbo injectors (pop pressure) in a turbo engine will hurt performance and economy.
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  #4  
Old 07-09-2008, 11:35 AM
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great info.
why the difference in pop pressures? just curious..
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  #5  
Old 07-09-2008, 12:31 PM
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pop pressures are related to the timing and the volume of fuel injected into the chamber. turbo has greater need for pressure, and volume.
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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  #6  
Old 07-09-2008, 01:04 PM
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Reliable source on the Tech Forum clarified recently that: ALL turbo engines from W123 through the W210 pop at 135-145bar EXCEPT the 603.971 which pops at 115-125bar. All NA's pop at the lower pressure.

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