trying to improve towing performance of 3l di auto

[threedogs]

you might also think about getting a rear coil tower
brace fitted to seeing you plan on lots of towing

[watto1416]

Threedogs, the previous owner installed heavy duty coils and airbags, does this achieve the same as a coil brace?

[Bigcol]

you Mechanic should be able to fit the EGT & other gauges

as 4bye4 said, get all the NADs fitted, better to be safe than sorry

and
as you tow with an Auto, I would suggest the Trans Temp gauge as well, but after the other gauges are fitted
why....?
same same as EGTs, better to know what its doing on a long run towing

Hey Col we should set Ropes up for an NADS installation trip. Just sayin


Sent from my iPad using Tapatalk

an interesting idea

I think it would have to be a 2 part "trip" though

1st part
explaining what is required and why - and what bits and bobs are needed

2nd part
actual fitting

sounds good to me

[the evil twin]

Threedogs, the previous owner installed heavy duty coils and airbags, does this achieve the same as a coil brace?

No they are seperate issues but bracing should be done for heavy loads and you should check if it was.

Heavy coils/airbags are to assist in suspension levelling which intimates heavier than average load on the rear towers
Patrols are known to develop cracks in the rear towers even with factory spring set up.
If you fit heavy coils and airbags and load the vehicle accordingly it is pretty much a 'must do'.

Fixing the cracks is waaaaay more hassle and expense than fitting the braces prior to having an issue

[jff45]

Please don't advise people that the factory trans temp light in the dash is ok to use as an indication of trans temp being ok.
That light comes on at 140 degrees C which means you're in the process of shorting your trans life if you're using non synthetic fluid. It's widely accepted that fluid temps over 120 are doing damage.

If you're towing with an auto, get a trans temp gauge, a larger fluid cooler and manual TC lockup fitted.

[threedogs]

Being new to diesels,,,, Im used to towing with my chev Petrol V8 troopy sitting
on 2000 rpm, thinking the lowr the the revs the better,,,,,,,,,,,,,,,,,,,,,,,,now Im
Towing with the ZD30 sitting on 2200rpm with an auto are you saying I should
take the OD off and cruise at 2600 rpm

Hear ppl here saying the were towing stting on XXXX and EGTs were very low
maybe they had the OD off.
What revs does a manual ZD30 sit on at 110 kph ?

[watto1416]

I could Google it but i would undoubtedly get a better reply here....whats is NADS?

[the evil twin]

I could Google it but i would undoubtedly get a better reply here....whats is NADS?

Slang acronym for "Nissan Anti Detonation System"

Possibly lowers the risk of burning holes in #3 or #4 Piston
It involves taking boost control away from the ECU plus a few other things.
Generally speaking it involves Dawes Valve and Needle Valve to control boost and optionals like Catch Can, EGR block, etc

Again, generally, considered as not needed for CRD's altho EGR blocks and Catch Cans are great for reducing soot and contaminates in any engine

About the one thing everyone agrees on is that dirty MAF sensors are a major problem and definitely have a part to play in poor performance and possibly premature engine failures due to incorrect fuelling or boost

[threedogs]

Please don't advise people that the factory trans temp light in the dash is ok to use as an indication of trans temp being ok.
That light comes on at 140 degrees C which means you're in the process of shorting your trans life if you're using non synthetic fluid. It's widely accepted that fluid temps over 120 are doing damage.

If you're towing with an auto, get a trans temp gauge, a larger fluid cooler and manual TC lockup fitted.

could you suggest a bigger trans cooler size wise please
more to the point what size does a ZD30 have now,and would a fan
assist whats there now

[jff45]

could you suggest a bigger trans cooler size wise please
more to the point what size does a ZD30 have now,and would a fan
assist whats there now

The ZD30 factory cooler is actually pretty good. It's easily twice the size of the factory cooler on the TB45.
I would fit a trans temp gauge first along with a manual TC lockup to limit the locking/unlocking that generates heat and let the gauge tell you if you need better cooling.
No different to a good engine temp gauge telling you that need to enhance your cooling system..