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#1
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Best Nozzles?
I've seen lots of talk of different nozzles lately, and I'm wondering which are the best to use? What are the differences/advantages of each?
I think the standards are "193" or "293"? I currently have the Monarch version of "273" (GTD?). These were smoother, but I can't say they really gave me any extra power. I've seen a thread recently about "297" nozzles as well: http://d24t.com/showthread.php?t=1604 And, I swear I read on a Swedish (translated) forum that they run Mercedes nozzles which proved to be a good upgrade - not sure about this though. So, thoughts: 193 293 273 297
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1990 Volvo 765 D24Tic (factory UK spec Tic). Monark 273 nozzles 163bar, Ajusa MLS gasket, 16psi, Water Injection, 17" Titans with 25mm H&R spacers, running 85% WVO/SVO. http://i103.photobucket.com/albums/m...AG0269-sig.jpg |
#2
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There is also 274 and 276 nozzles. I have installed a set of 297's in a 764, it ran cleaner.
As what nozzles are the better performers I'm not sure.
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12mm pump heads, ARP stud kits and GTD nozzles available! http://d24t.com/showthread.php?t=1646 NA intake manifolds and 240 turbo pans for sale. Need d24 or d24t parts? PM me! Shipments done on fridays! 1982 242 D24+T/M46- Super pumped! Build thread: http://www.d24t.com/showthread.php?t=1545 1984 764 D24T/ZF build thread: http://www.d24t.com/showthread.php?t=1734 Diesel parts cars: 82 244,83 244, 84 244, 84 245, 85 745 |
#3
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Did you notice any power gains/losses with the 297's?
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1990 Volvo 765 D24Tic (factory UK spec Tic). Monark 273 nozzles 163bar, Ajusa MLS gasket, 16psi, Water Injection, 17" Titans with 25mm H&R spacers, running 85% WVO/SVO. http://i103.photobucket.com/albums/m...AG0269-sig.jpg |
#4
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All I know is they can flow some fuel with a 12mm pump.
I wish someone could state for a fact what the difference is in the nozzles. Slightly different needle shapes? Lager orifice? Here is a picture of a 764 with a 12mm pump I built and the 297 nozzles, it's flowing a bit of fuel..
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12mm pump heads, ARP stud kits and GTD nozzles available! http://d24t.com/showthread.php?t=1646 NA intake manifolds and 240 turbo pans for sale. Need d24 or d24t parts? PM me! Shipments done on fridays! 1982 242 D24+T/M46- Super pumped! Build thread: http://www.d24t.com/showthread.php?t=1545 1984 764 D24T/ZF build thread: http://www.d24t.com/showthread.php?t=1734 Diesel parts cars: 82 244,83 244, 84 244, 84 245, 85 745 |
#5
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Hmm, interesting. I don't really understand the differences. I do feel my Monark "273" nozzles didn't give me anymore extra power than you would expect rebuilt injectors vs. old injectors to give anyway.
Is is true that running higher pressure will reduce the amount of fuel they flow, as they are open for a shorter period of time?
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1990 Volvo 765 D24Tic (factory UK spec Tic). Monark 273 nozzles 163bar, Ajusa MLS gasket, 16psi, Water Injection, 17" Titans with 25mm H&R spacers, running 85% WVO/SVO. http://i103.photobucket.com/albums/m...AG0269-sig.jpg |
#6
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I believe that any of the stock nozzles are more then capable of flowing what a max 10mm head/rotor can put out. As far as higher pop pressures, I could only assume the higher the pop pressure there might be a very slight decrease in fuel injected per stroke of the plunger. As the pressure rises there is more of a chance of the fuel getting pushed past the control collar and the mating surfaces of the plunger and head itself, it would be very minimal though.
The injectors will remain open as long as it's needed to inject the specific quantity of fuel the IP is suppling, whether it be at 130 bar, 155 bar or 180 bar.
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12mm pump heads, ARP stud kits and GTD nozzles available! http://d24t.com/showthread.php?t=1646 NA intake manifolds and 240 turbo pans for sale. Need d24 or d24t parts? PM me! Shipments done on fridays! 1982 242 D24+T/M46- Super pumped! Build thread: http://www.d24t.com/showthread.php?t=1545 1984 764 D24T/ZF build thread: http://www.d24t.com/showthread.php?t=1734 Diesel parts cars: 82 244,83 244, 84 244, 84 245, 85 745 |
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