Author Topic: ? max boost on stock ecu???  (Read 8969 times)

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Offline bungs

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Re: ? max boost on stock ecu???
« Reply #30 on: Jul 27, 2006, 08:06PM »
Can i please have more pices of your manifold? looks pretty good... :P

Yeah the guy who made it did a perfect job. I wanted a stock looking manifold so I took it to somebody who could do properly. If I made one it would look like ass. I've been pulled over a few times and they don't even question it  :-X - more interested in my non existant blow off valve...

Looking a bit dirty in these photos because I was handling it with oily hands.





As for the auto gearbox, I reckon it'll struggle with a turbo. The CV's aren't the problem, you won't have to touch those. We're blessed with a farken good manual box so I suggest trying to use that :)


Offline DAN

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Re: ? max boost on stock ecu???
« Reply #31 on: Jul 27, 2006, 10:47PM »
i have done the turbo on my car and it kicks ass only thing is i blew all my engine oil seals from runing it at 15psi so i have now bought a white trx which will be on the road in a week.
i will probabaly get a few things fixed up on my turbo setup than swap it all acros.

the big things i learnt were.
dont run more than 10psi i am nearly posititve that the rings couldnt hold it and allowed excessive blow by into the crank case.
make sure you get good intercooler pipe nothing of ebay intercooler is cool of ebay but never get the pipe from there.
make sure you use a catch can on both the pcv and tapet breather.
make sure that your intercooler pipe has been beeded there is notheing worse than heading of to work and blowing a pipe with the new stainless that i bought it only happend once but thats more than enough.
make sure that your oil feed line is top notch it can empty your sump very quick if it explodes.
you have to use bigger injectors and you will need a custom tune.
replace your fuel filter its amazing how much difference this made on boost.
you will need good ruber and probably a good hd clutch lsd will help too.

i have had issues with the intire list.  never had a clutch problem but at 15psi she has enough go to spin the tyres in 5th at arround 100km (if the clutch holds) mine did not hold for long.

i had marginal tyres when i started after about 3 weeks of turbo no visible tred left on 1 wheel the T has no lsd.

the last big thing i wish i had done was take my time and not rush it i would have saved a lot of time and money and potentialy hazardous situations (ask ryan he was a witness to this intire saga).

but never fear the new white trx will be done right from the start i was going to wait for my built engine which i am salvaging from the T but i know that it will take some time so i will try to exercise some controll and swap the turbo into the trx with the stock motor.

Offline bungs

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Re: ? max boost on stock ecu???
« Reply #32 on: Jul 28, 2006, 12:45AM »
The reason you blew the seals is because you didn't hook the pcv up to the intake of the turbo (thereby providing it with constant vacuum), not because you ran more then 10psi.

I made the same mistake hence why I swapped it with a spare engine I had  :-[ . In reality I didn't have to swap the engine, I could've just replaced the rear seal and the sump gasket BUT at the time I was more interested in what damage 6 months of boosting had done to my pistons so I swapped the engines over. Have to buy an engine stand before I can take the engine apart and have a looksee.

I'm running 12psi at the moment and it loves it. Proper tuning is the key, as well as a properly re-routed pcv :)

Offline Jono

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Re: ? max boost on stock ecu???
« Reply #33 on: Jul 28, 2006, 01:27AM »



Those turbos are T25 and T28, yes?
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Offline bungs

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Re: ? max boost on stock ecu???
« Reply #34 on: Jul 28, 2006, 01:48AM »
yup, t25g and t28

Offline DAN

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Re: ? max boost on stock ecu???
« Reply #35 on: Jul 28, 2006, 08:00AM »
so with the  new motor you are haveing no problems what so ever with oil leaks.

Offline bungs

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Re: ? max boost on stock ecu???
« Reply #36 on: Jul 28, 2006, 02:17PM »
so with the  new motor you are haveing no problems what so ever with oil leaks.

well... Not from the actual motor no.

I had a split in my oil return line which i've fixed now, but in terms of sump gasket/front/rear seals it's fine.

I know i've mentioned it before, maybe a few times already, but it's crucial that if anybody turbos their ka that they re-route the pcv!!! Else have fun with major oil leaks :P I never got told of this, and well, my parents driveway is proof of that  :(

Offline MAG86

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Re: ? max boost on stock ecu???
« Reply #37 on: Jul 28, 2006, 02:24PM »
im feeling a bit bummed out that if i want to do this i prob have to do a manual conversion...... what a mega pain in the arsh!

its going to be so much mucking around its unbelievable

you guys are positive the auto wont hold?

what if i just ran 6 psi?           a t25 should do that easily!
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Offline noss

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Re: ? max boost on stock ecu???
« Reply #38 on: Jul 28, 2006, 02:33PM »
evenflow is getting his auto re-built to suit the turbo conversion i believe, but i'm not sure what exactly he is having done. see if you can talk to an automatic transmission place about it.

for the money though, it'd be cheaper to pick up and install a manual box.

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Offline bungs

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Re: ? max boost on stock ecu???
« Reply #39 on: Jul 28, 2006, 02:39PM »
you guys are positive the auto wont hold?

No idea.
Only 1 way to find out heh.

More fun in a manual anyway, just ask king asshat budgie.

Offline Jono

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Re: ? max boost on stock ecu???
« Reply #40 on: Jul 29, 2006, 03:42AM »
I say give the auto a go. If worst comes to worst you'll have to get a manual gearbox after the auto dies.

There isn't all that much that can be done to our autos to strengthen them.
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Offline dave-trx

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Re: ? max boost on stock ecu???
« Reply #41 on: Jul 29, 2006, 04:29AM »
The biggest killer of automatic gear boxes is heat, if your box is in good condition, I personally think it will hold up. Get a heavy duty 4X4 auto transmission cooler.
Your car may be able to go faster.
But I can go any where. except into a garage, underground carpark, bridge...

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Good old Nissan.

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Offline DAN

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Re: ? max boost on stock ecu???
« Reply #42 on: Jul 29, 2006, 09:28AM »
my big sugestion for you is to ask people here who have actualy done it not just talked about it as there are alot of things that can be overlooked i am proof of that just ask noss (ryan) he kept apolagising when the car died almost everytime he had a drive not his fault of course he was driving a bit like a granny, it was just some of my poor work due to poor information and the fact that this was a first for me.
next find a performance shop that care about performance not what car you have.
this took me a while but the bloke at rotary motor sport in brendale was great he helped me alot did fantastic work at a reasonable rate and gave alot of advice he did not car what car i had or anything.
btw my bumper and grill are held together with zip ties yet his only comment was "christ thats a bloody big motor i would like to see that on the dyno with the turbo on"

Offline nazstang

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Re: ? max boost on stock ecu???
« Reply #43 on: Jul 29, 2006, 01:54PM »
well i'm not sure if you guys have maxima's down there, but in my white stanza, i swapped the internals and torque convertor into the stanza, and it held alright. before that, i had a new tranny(stanza spec.) in for 20K miles, and then after 4k of nitrous,  it began to leak out gaskets, and slip.  with the maxima tranny(from VG 3liter motor) i guess the tranny was built to take more power, so it held up much better. i just added an oil cooler(vs the radiator cooling), and it ran like a champ. but... when it comes to putting power to the floor, a manual will spank an auto any day. 150hp in an auto will = 160 in a manual. :-\ i perfer a manual, it's more fun ;D
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Offline Budgie

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Re: ? max boost on stock ecu???
« Reply #44 on: Jul 29, 2006, 02:36PM »
More fun in a manual anyway, just ask king asshat budgie.

Fucking 'eh chris :)
« Last Edit: Jul 29, 2006, 02:38PM by Budgie »
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