no more overheating patrol

Hi Angelo,
The power up involed fitting a 3" mandrel bent exhaust and dump pipe at the back of the turbo, new internals to the original turbo housing (still looks original as far as mr nissan is concerned), change timing, and play with feul aneroid to deliver more power and torque earlier in the rev range. Cost for me was $2500 but I already had the exhaust, so add about an extra $700 if I remember right for the exhaust. Still money well spent for me as I tow about 50 - 75 thousand k's per year.
Dyno figures-- in 4th gear max power 86.6 kw at 132 kph ( curve follows an arc from 66kw at 90kph to max and back to 66kw at 150kph)
Torque is not a curve at all more a flat line between 85kph and 120kph about 2650/2700 tractive newtons. In driving terms overtaking is not a wait till long stretch and hope, it's just plant the foot and go even with the trailer or van. ( speeds over 80 don't even need down change to 3rd to get going )
I had a safari stage one power up fitted from new pre-delivery of the vehicle but had to go back to stock when all the overheating started and I can tell you it is quite a lot stronger at holding on to gears but I think the power is not that much more in the mtq setup. That said I would still not suggest a safari kit through lack of backup service or assistance when I had probs. From this safari kit I still have the intercooler so now I know there is no overheating I may be able to drop the intercooler back on to get even a little more fom the engine, but I'll do that about xmas time if I've had no drama's in between now and then. Hope this helps. Kind regards Trevor.

Thanks for that trevor.
I was just wondering what the power up involved.Very similar to my dyno reading actually.
From personal expierence though, I believe that overheating problems are caused by different circumstances for each car. When i first purchased the GQ i have now, I found it got hot when hitting 110 kms with trailer in tow. ( box trailer with bike on) My remidy to the problem was simple, minor checks and modifications. Things like the nissan badge on the grill had to go, amazing temp drop once that was taken off. Radiator was removed and cooling fins were straightened and bugs removed, also another great improvement. Most of the causes i had were simple things neglected through time by previous owner.
I now have a GQ turbo (denco) that can be pushed hard all day and not see the temp gauge hit anywhere near 3/4. In the past 10 months the gauge has not touched 1/2, where as when i drove it home when i bought it, she was over 3/4 when pushed. But i have followed many posts in here from owners with heating problems and many different avenues have been taken to fix it. End result is, if its running cooler, then somewhere along the line, the problem was found and fixed....thats all that matters.
Im glad yours is now working well for you. Sounds like she gets a hard life through work.
Thanks again mate, apreciate your time in replying.
Angelo

Angelo,
You are dead right about the hard life bit, previous vehicle was a 100 cruiser diesel that had 3 gearbox rebuilds in 18 months through my inexperience with big loads, vehicle mechanicals and toyota's service dep't not knowing much about their own vehicle's weak points. As someones message says " experience is something you get 5 minutes after you need it".
Cheers Trevor.

Hi Roachie,
Thats the beauty of the VDO gauge it tells you when to back off before there is any movement from the nissan gauge, therefore defineately not causing any harm. 105c in my opinion would not be doing any harm so sounds like you are on top of your issues as well (which is great to hear). If you are up Brisbane way and wish to try before you buy, if your timing is right and I'm in town I could arrange a loaded run in mine to let you see the difference first hand. But anyway hope the temp prob's stay away for both of us.
Kind regards Trevor.

Thanks for the offer Trevor,

We're not likely to get to Brizzie anytime soon.....but we're going to Birdsville for the July get-together.

Cya m8

Roachie

Trol,
Defineately agree that nissan may look into it re warranty and big exhaust, but the turbo housing is nissan original equipment so to look at is no different only if they open up the housing to see the different turbine inside would there be a problem ??
Regarding fuel, I am now using about 1/2 a litre per 100km more than I used to. Possibly that is a direct result of my new found enthusiasm for the right pedal ?? again not sure of this. Anyway regardless of all the drama's i've had I still think it is the best vehicle i've owned and would be surprised if you will need the warranty, they are that reliable. But you should do what suits your situation best. Good luck with your vehicle.
Regards Trevor.