unichip for nissan 4.2

Submitted: Sunday, Sep 14, 2003 at 11:30
ThreadID: 7219 Views:1819 Replies:6 FollowUps:6
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im looking at getting more power out of my 2003 4.2 nissan
is there a unichip available or what are the best options to increase power?
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Reply By: Hilly - Sunday, Sep 14, 2003 at 13:58

Sunday, Sep 14, 2003 at 13:58
They do have one made by Unichip for the diesel called Dtronic. Supposed to give up to 25% more power but I think it's only for the 3.0 litre with it's flash electonic controlled fuel injection stuff. I read an article recently that that there was about 15 - 20% available in the 4.2 by having the pump worked to close the figures to design spec. Apparently for under $ 1000. I think it was in 4wheel Drive monthly. Can't remember the month.
AnswerID: 30991

Reply By: Simon - Sunday, Sep 14, 2003 at 15:23

Sunday, Sep 14, 2003 at 15:23
You can read about em here

http://www.safari4x4.com.au/dtronic/applications.htm

Non for the 4.2 nissan because its not electronicly controlled?

Turbo/supercharger-intercooler might be the answer.
AnswerID: 30995

Reply By: Member - John - Sunday, Sep 14, 2003 at 18:40

Sunday, Sep 14, 2003 at 18:40
G'day, just had a 3" mandrel bent exhaust put on my GU ute 4.2 TD, also new 3" dump pipe from turbo, what a difference. Gained 8 kw and nearly 80nm. Fuel pump not touched yet. Haven't done fuel consumption figures, but it seems to drive better for less throttle input. Will post when I have done some figures. Turbo dump pipe available from Northside ARB in Brisbane, I think, about $250 from memory. Their own casting. Local exhaust place $400 for exhaust, fitted. Have heard of good results with fuel pump mods from Turbo Engineeering Thomastown, will be talking to them Monday. Hope this helps.John
AnswerID: 31009

Reply By: Truckster (Vic) - Sunday, Sep 14, 2003 at 18:48

Sunday, Sep 14, 2003 at 18:48
How many klms on your new GU?

Bloke in the club has one with just over 10,000 and its as tight as a nuns nasty still...

Enquire about effects on your warranty with your dealer, and get it in writing from Head Office on Nissan Australia Letter head....
AnswerID: 31011

Follow Up By: theratt - Sunday, Sep 14, 2003 at 19:24

Sunday, Sep 14, 2003 at 19:24
20000 ks on the clock, i dont think im going to get more power
when its run in more
as for the warranty its hardly worth a w**k anyway
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Follow Up By: Truckster (Vic) - Sunday, Sep 14, 2003 at 19:49

Sunday, Sep 14, 2003 at 19:49
$5000+ for a gearbox, $15-20k for an engine, warranty aint worth it?
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Follow Up By: Mick - Monday, Sep 15, 2003 at 12:50

Monday, Sep 15, 2003 at 12:50
You should know by now you cant kill the 4.2!!
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Follow Up By: johnsy - Monday, Sep 15, 2003 at 14:03

Monday, Sep 15, 2003 at 14:03
theratt in my experience the td4.2 wont loosen up till 50/60k so till then drive it like you hate it and youll end up with a honest patrol.
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Reply By: Mick - Monday, Sep 15, 2003 at 14:38

Monday, Sep 15, 2003 at 14:38
I also installed a 3" mandrel exhaust with a new dump elbow, which was a dynamic turbo made kit. I was surprised at how much faster the turbo actually boosted in, which made better take off performance. I paid $500 cash for the complete kit. I will also be dyno testing the exhaust (when i get time), as i have already done a "before" dyno test at west end.
AnswerID: 31091

Follow Up By: 4by - Tuesday, Sep 16, 2003 at 13:22

Tuesday, Sep 16, 2003 at 13:22
Mick,
Let us all know when you've done the dyno - i know a few people that are keen on this mod and would be interested to see if it's worth it!!
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Follow Up By: Member - John - Wednesday, Sep 17, 2003 at 03:44

Wednesday, Sep 17, 2003 at 03:44
Mick, that is a very good price for the dump pipe and the exhaust, was it from Dynamics or else where? I found that I only gained a couple of kW, but lots of nM after fitting new dump pipe and 3" mandrel exhaust. Have to wait until I am fully loaded to see if more mods are needed for more power!
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Reply By: Mick - Wednesday, Sep 17, 2003 at 08:03

Wednesday, Sep 17, 2003 at 08:03
Yeh give me about 2 weeks and i'll dyno it again, as for the price, it was a dodgey deal from west end diesel. The turbo dump was cast by Dynamic, but the exhaust was made somewhere else. Easy to fit only 1 hour, but the old one took 2 to remove!
AnswerID: 31291

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