Page 7 of 7 FirstFirst ... 567
Results 61 to 62 of 62

Thread: Highway cruising 300tdi

  1. #61
    Join Date
    May 2006
    Location
    Yack
    Posts
    1,303
    Total Downloaded
    0
    Quote Originally Posted by manic View Post
    Of the course the boost compensator plays its part but most people rotate the pin to the most agressive slope, wind in the smoke screw and thats it. This only slightly increases fuel across the pin stroke, and reduces its range of travel.

    It will be trial and error based on egt and smoke out of the tail pipe.

    On the auto I would try winding the smoke srew on top of compensator all the way out, so you have full restriction at idle and full range of the pin ahead of you. Max fuel screw will bring the preboost fuel back up. You will then have more fuel all the way through your pin stroke. Rotate pin to fine tune.

    Watch the egts and tail pipe. Good luck.
    This has been great advice thanks Manic.

    I am a bit baffled why I didnt come across this manual v auto distinction before...seems your thinking re the difference between auto and manual re the IP tweaking is almost your own.
    I have done what you suggested and have rotated the fuel screw now a total of 180 degrees from where it was. EGTs are still quite ok.
    There is a stop sign at an intersection that I go through on my way to work and it is half way down a hill so you cant see if a car is coming over the rise til the last second so I need to accelerate to get up to speed to avoid being an obstruction. There is a bridge maybe 500 metres away and before I was able to get to about 80-85 by then - now if I really booted it I could be doing 100. On top of that, the general drivability at 100-110 is significantly better. Smoke not an issue - I think I could go a little further on the fuel screw -my aftermarket intercooler is finally being utilised properly I think.
    I have a new hybrid turbo and an exhaust manifold I bought last year - not much incentive now to bother fitting it. Might get to it one day.

    (on the topic of great advice - I also came across the idea of putting the aircon on when on steep offroad descents as a way to improve engine braking ( which is otherwise not great in the auto tdi D1). This works so well, dont know why, but it really improves things quite signifiantly...this is a great forum).

  2. #62
    Join Date
    Jan 2010
    Location
    Melbourne
    Posts
    1,801
    Total Downloaded
    0
    I will have to try out the AC button on hill descent, great idea.

    Good to hear you have got the results you are after. If you do fit the hybrid turbo and up the boost there will probably be a few more adjustments to be made to the star wheel and boost pin. Keep an eye on my vnt+++ thread. Im not done tweaking just yet.

Page 7 of 7 FirstFirst ... 567

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Search AULRO.com ONLY!
Search All the Web!