Basic Retune For More Psi(270Rwkw)

[Madaz]

if you return the BOV to stock catch cans are ok if they don't vent to atmosphere

but yeah if you don't care about the possibility of getting defected then yeah get the GT3076

from memory it is about $80 for a power run

[dirtythirty3]

f**k thats not bad. My old tuner for my ford was free for dyno runs

Ha this vents to atmo

Bov has two settings for plump back at atmo

Eitherway cars off road in 12days try my luck at the track get used to it.

But yea just wanted to see what i could push through it last it had 3inch dump n shitty 2.5inch cat n shiity cat back, now its full 3.5

Then as always build the car the way i want it

[Rolls]

The guys at Jaustech and also simon at morpowa are great as well, Heard good things about willall but I have never used them personally. I don't like boostworx as shaun doesn't use ANY knock detection when tuning, if you had a failing fuel pump it would almost certainly result in a popped motor.

I've also had 2 tunes from him that detonated as soon as the weather got above 25c and needed timing pulled out as he set the knock map to be identical to the normal fuel map.

He also doesn't do a road test/tune touch up nor does he test the cold start functionality, every tune I had had to go back to get him to fix the cold start.

Edited October 19, 2011 by Rolls

[On Edge]

My last tune was at willal, will never use anyone else.

[dirtythirty3]

Yep rang up said same shit id probs have round the 220rwkw

But il find out friday afternoon 60bucks for a dyno run

Then when they can fit me in for a tune see what i can get to, as far as i know iv got all

Mods to push the limits of the turbo.

If this is 220ish itl take me weeks to get used to 250 or 270

[Madaz]

you should crack 240-250 on 15psi

[dirtythirty3]

Any idea what psi this turbo can go to?

[Jap_star]

I'd run 16psi through it, maybe a touch more if you need too

[dirtythirty3]

.... Thats a bit shit. I figured garret internals ment around the 20psi region

[Madaz]

just wait till friday then you will know exactly what it can handle

[dirtythirty3]

well cheers guys il report back on friday then

[Madaz]

look forward to hearing what you make

[Jap_star]

The internals will be fine for that. all depends on what rear housing youve got, if its the normal nissan highflow bill does your outta luck for that kind of boost., id suggest going a proper 3076, 20psi will see you too 300. mine makes 270 on 16psi easily enough

[Rolls]

.... Thats a bit shit. I figured garret internals ment around the 20psi region

It isn't about what it can 'handle' it is about where it stops making power. You could probably run 28psi no worries, but whether you'd make any more power than 15psi all comes down to what combination of wheels are used.

The internals will be fine for that. all depends on what rear housing youve got, if its the normal nissan highflow bill does your outta luck for that kind of boost., id suggest going a proper 3076, 20psi will see you too 300. mine makes 270 on 16psi easily enough

Hypergear has them making 270kw with the stock rear housing, though they get seriously hot and he smashes 20psi+ through them to do that. Wouldn't be very detonation friendly.

Edited October 19, 2011 by Rolls

[Dohmar]

I'd run 16psi through it, maybe a touch more if you need too

I'm doing a safe 20psi with N1's on a 22 yr old bottom end. Replaced the gasket with a cometic mls 1.3mm unit, arp head bolts, smoothed head face etc

20psi is fine. Anything over that u wanna start worrying. I have the smallest turbo kit avail meaning it pumps less air at that PSI than a big one (ie a t51 can produce mammoth power at 7psi but is quite laggy and needs cams)... but psi is a matter for the tune, the gasket, the rings and valve seals. nothin to do with anything else - psi is all relative to the heat and volume of the air going in after all...

Put short I reckon 20 is doable on a stock engine in good nick, provided hes not running anything large (by large i mean anything that a) needs cams changed, b) is a single c) is bigger than a 2860-7 equivalent. Once you go over 350kw you're getting into the danger zone. I'd be happy if I got 300kw but really, the feel and response of the car is more important to me than any digits on a dyno chart

-D

[Rolls]

Put short I reckon 20 is doable on a stock engine in good nick, provided hes not running anything large (by large i mean anything that a) needs cams changed, b) is a single c) is bigger than a 2860-7 equivalent. Once you go over 350kw you're getting into the danger zone. I'd be happy if I got 300kw but really, the feel and response of the car is more important to me than any digits on a dyno chart

-D

It isn't the psi that kills motors, hell it is hardly ever even the raw torque that kills them, theres a few blokes running over 400kw on stock engines, it is all down to heat and avoiding detonation, the torque limit for stock pistons is pretty damn high, they will withstand 400kw for quite some time if you keep temps under control and have absolutely zero detonation.

All in the tune imo.

[Jap_star]

20 is fine for what your saying. I'm talking about his High flow. For a proper answer either ask a tuner or ats

[Madaz]

just to add extra information its not boost that kills engines or head gaskets

its DETONATION

[Rolls]

just to add extra information its not boost that kills engines or head gaskets

its DETONATION

QUOTED FOR TRUTH

moral of the story, find a fantastic tuner.

[DC_GTST]

Have the same high-flow 3076 internals from last years SAU dyno-day and pulled 274.7kw on 15psi (smaller rear housing), 220+ this year's SAU dyno-day on stock 7-8psi boost without a decent tune - reason for decrease was engine 're-build' as stock bottom end wasn't happy when past 18psi on a cold-chilly morning and thus replaced with forged internals. Therefore would agree that 16psi is a safe place to start with 'upper' limit.