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#1
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I must rebuild my injectors and have stock pump. So the 293 are stock nozzles ? The GTD are 273 = monark nozzles ? and which are best ? I heard too about nozzles from bmw tds DN0SD318.
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now: 480S, 480 Collection 158, 744 USA FK+ M90, 744 USA, 245 USA D24T+ +IC, 850 T-5R, 945 FK, 440, 460 ex: 745 USA FT, 480S, 3x480ES, 2xV70I, 945 D24TIC, 440 Last edited by swital; 05-21-2017 at 06:19 AM. |
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My project car will have 1.9 xud nozzles set at 175bar...
I put the injectors in the daily car for a few dozen miles and it was the quietest d24 i have heard. I had tried some '4S1' nozzles at 155 bar with a hope that they would fuel enough....dont go there... Standard injectors flow 35cc over 15s 4S1 nozzles st 155 bar flow 70cc over 15s Xud nozzles at 175 bar flow 45cc over 15s |
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#4
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I have the same problem, using a genuine bosch 12mm head, 4s1 nozzles are out of an old lister diesel, 800cc per cylinder. With them fitted, it idles like cummins does, has a no load flat spot at 2500rpm and smokes like a train on the same fueling that standard injectors only just smoke under full load, sounds terrible under all circumstances. AND makes noticably less power than good, slightly worn stock injectors. Maybe if you ran 40psi+ and raised the pop pressure to something insane on those nozzles it would suit 0m603 power levels. but for what we can prove a d24 can handle, There is a limit to how big the injectors can be. And those 4S1 nozzles are above that limit! The 1.9 xud nozzles are plenty big enough for any power number that anyone has ever reached before with a d24, and even more than that. In the uk, people get 300bhp+ out of a 1.9 xud on the same injectors. Add a bit more capacity and two more cylinders. Should be good for 330+bhp. Im only planning 260 bhp and VNT boost, so im torque hunting mainly... 480-500nm hopefully! |
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#6
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Well, i just put the injectors in my pop tester and pumped it as fast as i could into a bucket then guessed how much fuel they flowed... that'll be accurate enough, right? 😂
They are from the pump/injector shop. i have to admit, 35cc over 15s does seem like a vauge number, we have no idea what pressure the machine they use runs at, so flow figures arent forced to be accurate? But instead of trying to decipher the figures into usable ones, just use them as a reference vs OEM |
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I'm getting my injectors tested this week while they are out.
Big question is, what do I do if they need work? Standard 293? GTD 273? Bosch or Monarch? 297? Xud? And what pressure? I will be running a 12mm pump, with standard turbo at the moment, and I believe my engine is running a little low on compression in its old age.
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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 |
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