My turboed NA 4.2 GU

[TDR]

so this is my DX as i bought it

DTS turbo kit - non intercooled
3" exhaust
snorkel
2" ironman lift
duel batteries
31" duelers


im pretty novice when it comes to cars (especially diesels!!) so after reading a few threads about adding a turbo to the NA motor i was becoming paranoid about blowing the NA motor, so i decided first on the list was boost and pyro gauges. once installed i headed up princes hwy to see what she would do!! at 100ks up a steep hill its maxing out at 12psi and nearly hitting 500c on the pyro.

since then i have bought a set of 35" centipedes, so would expect EGTs be even higher now :eek:

with those temps and the now bigger wheels, im pretty sure i need to intercool the beast to give it a better life! just trying to find out how to go about it, any input is appreciated, cheers!!

[nissannewby]

Wind the boost up a little it may help. Try going to 14psi

[Ben-e-boy]

Hey mate.
If you get a chance there is a thread for EGT logging. If you did a test on a hill that could be easily found by other members in the area post up your stats.

Cheers.

http://www.nissanpatrol.com.au/forums/showthread.php?20700-EGT-data-logging

[TDR]

wont upping the boost increase the inlet temp therefore increase EGT? 12psi is as high as i wanted the boost (just going off other posts) for piece of mind

[nissannewby]

14 won't be to bad. More air in means a leaner mix which may slow the temp rise a little. If it doesn't help then you can always change it back.

An intercooler will help a lot. Front mounts work well and are simple.

[TDR]

ok i might give it a try, seems like its already pretty lean though.. doesn't give a single puff of black smoke

[TDR]

also the turbo barely spools unless ive got my foot pretty deep. On a flat road it will only hit about 6psi on gear changes then sit at 0 cruising at 60 in 4th.. My mates ZD30 is nearly always on boost!! Could this be the way it was tuned? It was used to pull a caravan, a mate suggested they bring on boost later if its a tow car so that your not flying through the gears real quick

[Jacket_1985]

also the turbo barely spools unless ive got my foot pretty deep. On a flat road it will only hit about 6psi on gear changes then sit at 0 cruising at 60 in 4th.. My mates ZD30 is nearly always on boost!! Could this be the way it was tuned? It was used to pull a caravan, a mate suggested they bring on boost later if its a tow car so that your not flying through the gears real quick

wtf. . . . lol. earliest boost possible is always best.

[TDR]

yeah it comes on pretty late compared to my mates zd30, maybe needs a re-tune

[BigRAWesty]

What sorta exhaust has it got.
3", but straight threw or mufflers?
And what rpm is the turbo coming in at?

Kallen Westbrook
Owner of
Westy's Accessories (http://www.nissanpatrol.com.au/forums/showthread.php?15134-Westy-s-Accessories.-A-small-back-yard-builder.)

[arfa]

love the mud, as we all do

[TDR]

What sorta exhaust has it got.
3", but straight threw or mufflers?
And what rpm is the turbo coming in at?

Kallen Westbrook
Owner of
Westy's Accessories (http://www.nissanpatrol.com.au/forums/showthread.php?15134-Westy-s-Accessories.-A-small-back-yard-builder.)

3" with 1 muffler.. Plan on cutting that out soon. Comes on around 1800 I think