Intercooler efficiency

Submitted: Thursday, Apr 14, 2005 at 12:38
ThreadID: 22058 Views:1234 Replies:3 FollowUps:2
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In a couple of other posts on this forum I have seen comments about intercoolers not really working efficiently at low or speeds. This makes sense to me but in my 1998 GU 2.8tdi the intercooler is factory-fitted with a fan (underneath) that I guess switches on when the air temp is above a certain level but I don't know for sure. I have notices that on the current and the immediate past 4.2tdi there is no fan. Can anyone tell me if my understanding of the purpose of the fan is right - if so why would they not continue to install it in later models with bigger engines. Also would appreciate it if anyone could tell me when the fan is designed to cut in.
Ta
Pete
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Reply By: GUPatrol - Thursday, Apr 14, 2005 at 16:15

Thursday, Apr 14, 2005 at 16:15
Pete,

The workshop manual says that the 2.8 ECU controls that fan, it has a sensor in it, when the boosted air temperature reaches a certain level, the fan cuts in.
None of the others have it, both the 3.0L and 4.2.
I think it is due to lack of space or $$saving...

Will
AnswerID: 106741

Reply By: Patrol22 (Queanbeyan - Thursday, Apr 14, 2005 at 18:06

Thursday, Apr 14, 2005 at 18:06
Thanks Will thought it would be something pretty straightforward. Just surprises me that the fit wasn't continued.
AnswerID: 106759

Reply By: theratt - Thursday, Apr 14, 2005 at 23:42

Thursday, Apr 14, 2005 at 23:42
if you look at the specs on the nissan engine the intercooler aint worth a wank
AnswerID: 106816

Follow Up By: pt_nomad - Friday, Apr 15, 2005 at 12:49

Friday, Apr 15, 2005 at 12:49
I must say, I can recall seing any manufacturers vehicle specs that are 'worth a wank', but I what ever taks your fancy I guess.
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Follow Up By: pt_nomad - Friday, Apr 15, 2005 at 12:50

Friday, Apr 15, 2005 at 12:50
I must say, I cant recall seing any manufacturers vehicle specs that are 'worth a wank', but I what ever takes your fancy I guess.
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