« previous next »
Pages: 1 [2]

Author Topic: Are these China GTD tips????  (Read 5618 times)

Reply #15May 01, 2009, 10:51:35 am

bert

  • Veteran
  • Offline
  • ***
  • 423
Are these China GTD tips????
« Reply #15 on: May 01, 2009, 10:51:35 am »
Logged
Reply #16May 01, 2009, 10:58:59 am

53 willys

  • Guest
Are these China GTD tips????
« Reply #16 on: May 01, 2009, 10:58:59 am »
Logged
Reply #17May 01, 2009, 01:09:48 pm

Otis2

  • Junior
  • Offline
  • **
  • 191
Are these China GTD tips????
« Reply #17 on: May 01, 2009, 01:09:48 pm »
Quote from: "zukgod1"
It comes down to the fact that we are injecting the fuel into a precup, There is only so much space in there for ignition in the first place so at some point we can inject too much fuel and get an incomplete burn ie; smoke. Now if we were talking direct injection like the TDi engines then the different tips are beneficial as the entire cyl and void in teh piston are used as the prechamber.

The OE TD tips are hard to beat from what I've found.


That makes a lot of sense.  It would explain why the TDi guys are always upping their power with bigger nozzles, but the IDI guys have no empirical data to show improvements with bigger nozzles (except for the notoriously inaccurate "butt dyno").  

I suspect any true "gains" acquired by fitting GTD nozzles, are due to the fact that the old TD nozzles were just worn out.
Logged
Reply #18May 01, 2009, 02:54:34 pm

smutts

  • Veteran
  • Offline
  • ***
  • 720
  • Personal Text
    ClackClackClackClackClack
Are these China GTD tips????
« Reply #18 on: May 01, 2009, 02:54:34 pm »
What a find! :P

The last set of the Bosch DN O SD 274's I got in the UK were stamped India, the set before that were Turkey, the originals were France. Anybody noticed any difference in the end results, depending on where they were made?  :?

I didn't notice much difference, but then again my compressions would be poor for even a petrol engine. :roll:
Logged
Pages: 1 [2]
« previous next »