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which nozzle: DNOSD 274 (GTD) or DNOSD 261 (MB)?
by
zaprzal
on 08 Jan, 2008 01:32
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which nozzle is better for IDI engine with some performance mods: stock GTD 274 or Mercedes 261, and why? Any other nozzles?
some people says that it MB nozzles aren't any better than stock VW and have spraying designed for different head, is it true?
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#1
by
OM617
on 08 Jan, 2008 19:28
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Mercedes uses a precombustion chamber while VW is more of a swirl chamber. MB has the fuel striking a ball to completely atomize.
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#2
by
zaprzal
on 09 Jan, 2008 00:26
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Mercedes uses a precombustion chamber while VW is more of a swirl chamber. MB has the fuel striking a ball to completely atomize.
is it better to use mercedes or GTD nozzles on 1.6?
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#3
by
OM617
on 09 Jan, 2008 06:14
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GTD, AAZ nozzles would probably also do well.
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#4
by
saurkraut
on 09 Jan, 2008 09:08
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I have the GTD nozzles in my 1.6. If you feed them more fuel, they are better than the stock nozzles.
I haven't heard anyone saying that the Mercedes nozzles work good, or even have compared the Mercedes nozzles to the GTD nozzles.
In summary:
GTD nozzles work
Mercedes nozzles?
?
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#5
by
carrizog60
on 09 Jan, 2008 09:25
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i have them but as i put them at the same time that other things i cant say the diference...
when i get my pump to deliver fuel the way it was before then i could tell the diference...
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#6
by
zukgod1
on 09 Jan, 2008 10:39
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Dave @ PP is running Merc on his Frankin engine I believe.
Someone should ask..
I know he has said he has seen a good increase in power with the Merc tips.
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#7
by
Tintin
on 09 Jan, 2008 14:42
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merc 261 nozzle are around 0.10mm bigger than the GTD one and have a different spray.
I install some of these, and Im not sure if It's good, for sure that give more power, but with much more smoke.
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#8
by
Vincent Waldon
on 09 Jan, 2008 17:44
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merc 261 nozzle are around 0.10mm bigger than the GTD one
Ah Tintin.. a piece of the holy grail... is that something found on ESI, or do you have another source for nozzle knowledge ??
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#9
by
Tintin
on 09 Jan, 2008 17:50
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no, It's not from esi, It's from another source that I does not know if it's credible, except that I measured myself with the means which I have, and that seems plausible.
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#10
by
Vincent Waldon
on 09 Jan, 2008 17:57
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thanks for the response... the search for the secret decoder ring to DNO nozzles continues... !!
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#11
by
Tintin
on 09 Jan, 2008 17:59
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thanks for the response... the search for the secret decoder ring to DNO nozzles continues... !!
What you want to say by "decoder ring" ?
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#12
by
Vincent Waldon
on 09 Jan, 2008 18:05
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I'm referring to a definitive source of the parameters of the DNO series of nozzles... DNO SD XXX... in terms of flow, etc.
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#13
by
935racer
on 09 Jan, 2008 18:05
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I don't have MB nozzles in currently, just stock 1.6td nozzles, I am upgrading to the custom set of nozzles that Jake had made a couple years back that were originally intended for Mark's franken engine. I will upgrade the nozzles sometime in the next month or so. But yes the MB nozzles do give more power, and more smoke. I compared the spray patters of both on my pop tester and honestly the shape is damn near the same in the first inch and half, which is all that matters for our eninges, at least thats how I remember it, that was about 2-3 years ago :?:
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#14
by
Tintin
on 09 Jan, 2008 18:16
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The end of the merc nozzle pintle are a different shape than the GTD one, I does not remember exactly wich It's different, but one have a more angle design and the end is more short, It's sure that change the spray.