Interesting tune yesterday @ ICE performance

[Munna]

My car was also tuned at Ice Performance very good service which is hard to find these days. Mods and power are in sig Nigel said the car is making very good power and usually it would take more boost than 10.5psi to make that power. Unfortunaty I lost the graph and im not sure whether it was done in shootout mode. i would highly recomend ICE performance to anyone.

[paulr33]

boost doesnt make power though, airflow does

[Munna]

boost doesnt make power though, airflow does

True that, Perhaps I should clarify that. He meant for the modifications done it usually requires more boost to acheive the figures I got

[nitemare5]

The long awaited dyno graphs! please post your opinions.

The graphs dont look anything to special, but the opinions from both tuners at those places is that they reckon there MIGHT be something tricky about the turbo. From what I know when i imported this vehicle that it was stock :confused:

[paulr33]

http://members.dodo.com.au/paul/pics/dyno/172rwkw.jpg thats my latest graph

all through the rev range your about 5kw or thereabouts above until 5500 where your about 15kw more than me. if it wasnt stock i'd expect more lag or a bigger jump up

[paulr33]

no idea how its managed 710nm of torque though, that doesnt make sense

[justin911]

heres my little graph, i've got a question also

the AFR:P on the right on all our graphs, I know what it stands for but whats it actualy mean ?

Like mine is 18, pauls is 20, and nitemares was 24 but what does that mean exactly ???

[beefy]

There are some rare Nismo Prep GTST that have made it to Australia. Apparently they were made available from Nissan and have a higher compression engine and a modified Turbo.

A Friend had one and has the details if you are interested.

Check your PM for his number.

[paulr33]

the AFR is air fuel ratio. its showing the af ration from 10 upto 20:1.

20 being lean and 10 being rich. 10 parts of air to 1 part of fuel = less of a bang + wasted fuel

20 = big bang and less wasted fuel. the main climb curve is power going up (you measure against the left axis) and the wonky line that hovers near the bottom of the graph is the AF curve (you measure against the right axis). so going by yours justin it starts off at 12.5:1 and then hovers around near 12.0 which is the ideal af ratio. not too rich and not too lean but lean enough to get some power and keep the engine safe

well my understanding off af and lean / rich. i could be wrong hope im not. if iam can someone please correct so i get it right next time

thanks

[paulr33]

if on your graph justin that lower af curve skewed up to the middle of the graph towards the end to say 14 ish then it would say the car is leaning out too much. perhaps car is not getting enough fuel etc or something in the fuel system is maxing out as an example. its pretty much on 12 all the way through so its pretty good and the ideal af it is

[justin911]

cool thanks for that paul

[paulr33]

al taught me how to read af ratio's so if what i said is wrong ask him, he knows the goods

[pmgrz2]

Well now im interested to hear ur opinions. Should i fork out some cash and do some r&d to find out what i actually have, or in your opinions is it defintely a stock turbo, which perhapes has had a fairly easy life so is generally making quite good power.

I'm also curious as to how you've gone wiht ur split dump-pipe paul, and was it actually worth doing. I'm just wondering if its worth getting a new dump pipe, given that theyre gonna have to take it off anyway to check the turbo, if i do take that road.

[R31Nismoid]

just pull the front pipe off.

wont cost you anthing other than time and you'll sure see if its been milled out or not for a larger wheel.

[justin911]

just on a slightly related topic I tried to do that a few weeks ago, when i heard something make a metal/metal grinding noise. How do yo take off that pipe which connects to the air filter... im guessing thats the front pipe ??

[R31Nismoid]

i dare say its either hose clamps or screws.

it wont be hard

[pmgrz2]

Will i need access to a hoist to properly examine it?

[paulr33]

my dump pipe isnt on yet, they cant get the bolts off the turbo so its taking longer

should hopefully be done today. will let you

[hanyou]

jus read the thread. just thot id share my results too.

96 gts-t

stock boost/turbo

fmic

power fc

bosch 040

catback exhaust/hi flow cat

pod filter

182.4rwkw. thought that was pretty good for stock boost and turbo as well. cud this mean turbo could be hi flowed hehe cuz that would be sweet az.

[R31Nismoid]

umm, i doubt it.

stock boost would be around 8-9psi which isnt actually stock thanks to the xhaust