nissan turbo boost presure

Submitted: Wednesday, Jan 04, 2006 at 17:05
ThreadID: 29333 Views:2968 Replies:2 FollowUps:6
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g'day all & happy new year
i have not long got back from a quick trip to Q.L.D max boost pressure on the navara 3.ltd was 16psi,egt max reading 650C,not towing the caravan this is the same egt max i got towing the van previously.water temp on both occasions did'nt go over 210F.just thought i'd let 3.0ltd owners know.
cheers toohey
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Reply By: Member - Roachie (SA) - Wednesday, Jan 04, 2006 at 17:20

Wednesday, Jan 04, 2006 at 17:20
G'day Toohey,
Where was you EGT measured? If it's in the dump pipe I'd be saying "oh chit, that's too hot".
Glad you had a good quick trip.
Cheers
Roachie
AnswerID: 146412

Follow Up By: awill4x4 - Wednesday, Jan 04, 2006 at 17:47

Wednesday, Jan 04, 2006 at 17:47
Roachie's right, if it's measured post turbo then there's some pretty serious temps there. Do the Navara's run the same variable vane turbo as the Patrol's do? Perhaps the opening and constricting of the variable vane adds to the exhaust temps. It would be interesting to see what other 3.0 Nissans are getting with EGT's and whether these temps are the norm.
Regards Andrew.
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FollowupID: 399930

Follow Up By: Member - toohey - Wednesday, Jan 04, 2006 at 19:05

Wednesday, Jan 04, 2006 at 19:05
g'day fella's
the probe is in the exhaust manifold just before the turbo,according to nissan melb. the turbo is the same as the patrol
cheers toohey.
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FollowupID: 399936

Follow Up By: sevo - Thursday, Jan 05, 2006 at 20:42

Thursday, Jan 05, 2006 at 20:42
Toohey,

The turbo fitted to Navara ZD30 is the conventional waste gate type and not Variable Vane as in ZD30 Y61.

When you stated "the probe is in the exhaust manifold just before the turbo,according to nissan melb", what did you mean by that ?

cheers
Sevo:)
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FollowupID: 400114

Reply By: Chaz - Thursday, Jan 05, 2006 at 06:50

Thursday, Jan 05, 2006 at 06:50
Cheers Toohey,
Thanks for sharing your info. Your boost sounds about right and compared to my "Post" turbo pyro your temps are ok also. As Roachie says, there's about 150degC difference between pre and post pyro's, so that would equate to 500C in my case, but I haven't got there yet.
Cheers
Chaz
AnswerID: 146492

Follow Up By: Member - toohey - Thursday, Jan 05, 2006 at 21:32

Thursday, Jan 05, 2006 at 21:32
g'day sevo
the probe for the egt is in the exhaust manifold just before the turbo,nissan melb told me the turbo on the navara is variable vane same as the patrol.
cheers toohey.
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FollowupID: 400129

Follow Up By: sevo - Friday, Jan 06, 2006 at 20:18

Friday, Jan 06, 2006 at 20:18
Toohey,

Without giving to much away I can 110% guarantee the the Turbo fitted to your ZD30 Navara is not Varaible Vane.

cheers
Sevo
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FollowupID: 400326

Follow Up By: awill4x4 - Saturday, Jan 07, 2006 at 18:10

Saturday, Jan 07, 2006 at 18:10
That's interesting Sevo. Do you know if the Navara has the same electronic controls the Patrols use? We don't seem to hear of the same problems with the Navara vs the GU 3 litre trucks.
Regards Andrew.
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FollowupID: 400472

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