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Thread: dawes and needle valve for common rail?

  1. #11
    The master farter
    mudski's Avatar
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    As you have the gauges, block the EGR and monitor how it goes. Its not a big job to remove it if your not happy.

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    the evil twin (1st February 2014)

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  4. #12
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    Quote Originally Posted by mudski View Post
    Thats me guys. Buy through here and 10% goes back into the forum. Which reminds me i need to transfer some coin across
    Hey Mudski, PM sent. This has been on my to do list, and I am about to do a service so now is as good a time as any.

    Lemo
    http://www.nissanpatrol.com.au/forums/image.php?type=sigpic&userid=16293&dateline=137569  2513
    2006 GU IV ST 3.0L TD Di
    Autron Boost and EGT, Dual Bat, Dawes & Needle Valves, ARB Alloy rack, more to come.

  5. #13
    I am he, fear me the evil twin's Avatar
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    Quote Originally Posted by mudski View Post
    As you have the gauges, block the EGR and monitor how it goes. Its not a big job to remove it if your not happy.
    What mudski said...
    Dolphins are so smart that within a few weeks of captivity, they can train people to stand on the very edge of the pool and throw them fish.

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    I have had a dawes and needle setup on mine for about two years now, with no ill effects. The ecu does a good job on an unmodifed car. But with a rail chip with no boost control, the egts can get to high. The dawes is a good way to bring egts down and gain performance when adding more fuel.

  7. #15
    Patrol Guru rottodiver's Avatar
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    I had a Dawes and needle valve, took me a bit to install it( a lot of help from here but very very simple once you know how...maybe a 2 minute job once all hoses are cut) I have since removed them( on the side of the road on a trip) I really had troubles Setting them correctly.. They ran well in the city then when towing on the hwy I hit limp mode twice when trying to overtake on a hill. I haven't put them back in because I have had no over boosting problems at all... Although the faster spool up rate was very noticeable. I have the egr blocked with no hole in it , 3 inch exhaust, provent catch can, and chip. Have had the check engine light 3 times only(easy fix with scan guage)

    Scotty

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    growler2058 (27th November 2020)

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    I run a CRD with the EGR block, Provent and Scanguage, no massive spikes in boost, runs well.

    Quote Originally Posted by the evil twin View Post
    Mine has EGR block and no Dawes or Needle valve.
    I fitted the EGR then adjusted the VNT as per Chaz's bible and she's been tickety boo ever since (chipped, 3" exhaust, EGR block, pyro and scan gauge)
    I bought the Dawes gear but it runs perfectly well on the ECU so never bothered so I sold the bits
    Where can I lay my hands on this bible ET??
    2008 GU ST Bog stock and no smoking barrels!

  10. #17
    Patrol God threedogs's Avatar
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    @ RD What do you think was the cause of the limp mode,
    dawes adjusted correctly should have limited your boost to 15psi max,
    with no chance to overboost
    04 ST 3lt auto, not enough Mods to keep me happy, but getting there

  11. #18
    Patrol Guru rottodiver's Avatar
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    Quote Originally Posted by threedogs View Post
    @ RD What do you think was the cause of the limp mode,
    dawes adjusted correctly should have limited your boost to 15psi max,
    with no chance to overboost
    I was under the impression about 18 psi was ok for crd,s
    It can only have been it was set too high, frustrating thing was it worked perfect ( so I thought) around town for a few weeks before the trip. It even triggered the engine light with the over boost code... I guess I am more comfortable with the ecu looking after the boost than me setting it.. If it was to over boost with out the valves I would think about re installing them but I have had absolutely no problems since taking them out..( do miss the faster spool up though... It really does improve with it). As it is I am happy with egt,s , boost, Engine temp and also auto trans temp, even the boost doesn't fluctuate too badly either so will see how they go..
    Scotty
    Last edited by rottodiver; 2nd February 2014 at 01:13 PM. Reason: Added my psi

  12. #19
    Patrol God threedogs's Avatar
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    I believe the Cr ECU handles the boost issues a better than the Di.
    So you have a dawes set up for sale lol
    04 ST 3lt auto, not enough Mods to keep me happy, but getting there

  13. #20
    Patrol Guru rottodiver's Avatar
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    Quote Originally Posted by threedogs View Post
    I believe the Cr ECU handles the boost issues a better than the Di.
    So you have a dawes set up for sale lol
    Nah not for sale... I am not against having another go later... Maybe during simpson when there are some people around me that know what they are doing ( a lot more so that I) it is now plug and play, all hoses are at length etc

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