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TD4.2 Dyno/tune
Posted: Mon Nov 28, 2005 7:36 am
by speed=t/d
Have 03' GUIII 4.2 turbo intercooled. Now 60 000 k's old, have fitted 3 inch exhaust (made a reasonable increase in performance) every thing else is factory.
Have read the bible re mod's but have a few further Q's.
1/. will fuel consumption increase? (I know this is directly related to how I drive - but say on a trip bet Syd - Bris).
2/. will it decrease engine life (can the 4.2 handle extra herbs) any unwanted side effects.
3/. where do you recommend in Sydney for the tune?
Thanks in advance for any replies.
Posted: Mon Nov 28, 2005 7:32 pm
by xenith
i have a 4.2 running 13 psi yejavascript:emoticon(':twisted:')
Twisted Evils 13psi and have found no probs fuel useage around town has got worse (pos driving stile) opne road heps better turbo was fitted at 389000 km yes thats 389000 km and now has 416000 and dose not use any oil at all betweenoil changers if that helps i am a spaner man so tuned myself
Re: TD4.2 Dyno/tune
Posted: Mon Nov 28, 2005 7:53 pm
by Hoonz
speed=t/d wrote:Have 03' GUIII 4.2 turbo intercooled. Now 60 000 k's old, have fitted 3 inch exhaust (made a reasonable increase in performance) every thing else is factory.
Have read the bible re mod's but have a few further Q's.
1/. will fuel consumption increase? (I know this is directly related to how I drive - but say on a trip bet Syd - Bris).
with just an exhaust mod .. no it shouldn't .. but depends how u drive with the new found power
more power = more right foot = more fuel = FUN
2/. will it decrease engine life (can the 4.2 handle extra herbs) any unwanted side effects.
more power = less engine life again depends how u drive it
say if you tune it to 300hp you'll get like 10000kms out of it
big boost and lots of fuel ... lots of $$$ in engine mods = FUN
more fuel = washing the bores down = less oil for lube = engine wear
then again if you can afford all this you can afford a rebuild every 10000 
you don't have to go berko tho all depends what your using ur rig for
4.2s are capable of producing and handling good power ... i think 12psi boost and fueled to suit would keep you happy for a lil while ... pyro, boost, engine temp, oil temp guages are recommended if dicking around with this stuff too .... good for bling factor too (fullyschickhabbib)
3/. where do you recommend in Sydney for the tune?
ask some one is syd
Thanks in advance for any replies.
its all about the
FUN once ur bored with that go V8 petrol
Posted: Tue Nov 29, 2005 9:24 pm
by ats4x4dotcom
We do pump retime, boost upgrade [14psi], and new dump pipe, and mandrel bent 3" with straight through muffler, and tune for 600-620 deg C on the dyno, on my new 4.2 tdi makes 103kw and 4500 tractive newtons @ 2300rpm, in 4th gear, on 37's, on a dyno dynamics dyno with a 15 deg ambient.
You could try macquarie 4x4, 18 park st Vineyard [Windsor] they do many nissan 4.2 power upgrades there.
Re: TD4.2 Dyno/tune
Posted: Tue Nov 29, 2005 10:04 pm
by bogged
speed=t/d wrote:3/. where do you recommend in Sydney for the tune? .
West End Diesel.. The Best in Shitney.
Search you will find happy customers