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how many km till a turbo is out of the question? 

 

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 Post subject: how many km till a turbo is out of the question?
Posted: Sat Jan 23, 2010 10:00 pm 
Parts Gopher
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hey all thinking bout putting a turbo on my au series 1 she has done 190 000 is that to many kms to think bout a turbo.
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 Post subject: Re: how many km till a turbo is out of the question?
Posted: Sat Jan 23, 2010 10:25 pm 
Getting Side Ways
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it really depends on how the engine has been treated and maintained.
theres plenty of engines with way more ks than that with boost.
you really should be fine though.

 

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 Post subject: Re: how many km till a turbo is out of the question?
Posted: Sun Jan 24, 2010 11:39 pm 
Getting Side Ways
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Actually a few klrs doesn't hurt.. With the extra clearance. It's just what is required to run a nice turbo application.. Just pay attention to tune and crankcase venting.. Add an extra valve cover vent or at least drill out the back vent in rocker cover bigger..
The hose to throttle body MUST be disconnected and placed into air cleaner via oil separator...

 

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331 Dart block,3.25/ 4340 steel crank, Oliver rods,TFS ported track heat heads, TFS track heat inlet Twin SC61 turbo's
Project 1UZ-EF has started.. S475 Turbo 4.0 V8 Mustang Celica.....

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 Post subject: Re: how many km till a turbo is out of the question?
Posted: Mon Jan 25, 2010 9:53 am 
Getting Side Ways
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agreed with the above, my motor first copped its turbo after 200,000km's.

i'm planning on putting a turbo onto a 400,000km old windsor too :P

 

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 Post subject: Re: how many km till a turbo is out of the question?
Posted: Mon Jan 25, 2010 12:42 pm 
Getting Side Ways
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Even if its blows u can buy urself a low km AU engine pretty cheap these days and they handle the boost pretty well in standard form.

 

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 Post subject: Re: how many km till a turbo is out of the question?
Posted: Mon Jan 25, 2010 1:05 pm 
Getting Side Ways
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MICKYYYY wrote:
Even if its blows u can buy urself a low km AU engine pretty cheap these days and they handle the boost pretty well in standard form.


No they don't. The rods are too weak for a decent serving of boost.

 

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 Post subject: Re: how many km till a turbo is out of the question?
Posted: Mon Jan 25, 2010 1:56 pm 
Getting Side Ways
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people on the forums have made 250rwkw easily with an AU engine and sum up to 300rwkw with AU engine in standard form.

 

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 Post subject: Re: how many km till a turbo is out of the question?
Posted: Mon Jan 25, 2010 2:27 pm 
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67RCE wrote:
MICKYYYY wrote:
Even if its blows u can buy urself a low km AU engine pretty cheap these days and they handle the boost pretty well in standard form.


No they don't. The rods are too weak for a decent serving of boost.


i got to ask?? what would you consider a decent serving of boost????
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 Post subject: Re: how many km till a turbo is out of the question?
Posted: Mon Jan 25, 2010 9:09 pm 
Getting Side Ways
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67RCE wrote:
MICKYYYY wrote:
Even if its blows u can buy yourself a low km AU engine pretty cheap these days and they handle the boost pretty well in standard form.


No they don't. The rods are too weak for a decent serving of boost.

I run 12 Lb through mine with 350rwkw..
The block is known to be the weak link.. NOT the rods or pistons..
Keep power under 500 flywheel h.p and your fine!!
If there's problems with rods ??
I would seriously look at the TUNE !!!
Check here on block chronicles...Reason these engines failed...
http://www.theturboforums.com/stockblock.php

 

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As in ZOOM 126 edition
331 Dart block,3.25/ 4340 steel crank, Oliver rods,TFS ported track heat heads, TFS track heat inlet Twin SC61 turbo's
Project 1UZ-EF has started.. S475 Turbo 4.0 V8 Mustang Celica.....

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 Post subject: Re: how many km till a turbo is out of the question?
Posted: Mon Jan 25, 2010 9:22 pm 
Getting Side Ways
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EBXR8380 wrote:
67RCE wrote:
MICKYYYY wrote:
Even if its blows u can buy yourself a low km AU engine pretty cheap these days and they handle the boost pretty well in standard form.


No they don't. The rods are too weak for a decent serving of boost.

I run 12 Lb through mine with 350rwkw..
The block is known to be the weak link.. NOT the rods or pistons..
Keep power under 500 flywheel h.p and your fine!!
If there's problems with rods ??
I would seriously look at the TUNE !!!
Check here on block chronicles...Reason these engines failed...
http://www.theturboforums.com/stockblock.php
ive just had a look at the link you put up and had a look at some of them blocks,thats one thing that worrys me about my motor but is it true that if you keep the revs under 6000rpm and you have a GOOD tune the stock blocks last

 

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 Post subject: Re: how many km till a turbo is out of the question?
Posted: Mon Jan 25, 2010 9:45 pm 
Getting Side Ways
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lol how many blocks have failed?
i've never heard of one letting go...
isn't it a knon fact that the rods in the AUs are weaker than previous models?
but i do agree with above, under 300rwkw seems to be ok for them with a good tune
and having a bad tune will kill any motor.

i do however doubt 350rwkw with only 12psi?
or are you talking about your 331 setup EBXR8380?

 

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mild engine, EL ECU & J3, HI6 & MSD coil

in the shed - .595" lift cam, GT4202, forged AU engine, ems 4424 ecu, glide & 5500 stall - next-bellhousing

XH ute daily - DOHC BA XR6 engine, T5, AU3 ECU, J3 chip, wideband & logger, ported BBM, 3" intake

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 Post subject: Re: how many km till a turbo is out of the question?
Posted: Mon Jan 25, 2010 9:53 pm 
Smokin em up
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EBXR8380 wrote:
67RCE wrote:
MICKYYYY wrote:
Even if its blows u can buy yourself a low km AU engine pretty cheap these days and they handle the boost pretty well in standard form.


No they don't. The rods are too weak for a decent serving of boost.

I run 12 Lb through mine with 350rwkw..
The block is known to be the weak link.. NOT the rods or pistons..
Keep power under 500 flywheel h.p and your fine!!
If there's problems with rods ??
I would seriously look at the TUNE !!!
Check here on block chronicles...Reason these engines failed...
http://www.theturboforums.com/stockblock.php

but the question is for AU 6cylinder not for a V8.
an 67RCE is right the RODS in AU-BA's are weak.

 

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 Post subject: Re: how many km till a turbo is out of the question?
Posted: Mon Jan 25, 2010 11:03 pm 
Getting Side Ways
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TROYMAN wrote:
67RCE wrote:
MICKYYYY wrote:
Even if its blows u can buy urself a low km AU engine pretty cheap these days and they handle the boost pretty well in standard form.


No they don't. The rods are too weak for a decent serving of boost.


i got to ask?? what would you consider a decent serving of boost????


A mate killed one on 6psi, another on 12psi, both tuned, ED bottom end on 15psi = still going after 1.5years

 

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ILL60 - EF XR8, Sunroof, Ticky Kit, 19x8.5/19x11 TE37's, 347, AFr185's, TFS BoxRcustom converter, Hurst Quarterstick, huge billet cam.

51TER - DL LTD. Stock.

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 Post subject: Re: how many km till a turbo is out of the question?
Posted: Tue Jan 26, 2010 3:32 am 
Getting Side Ways
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misk_one wrote:
lol how many blocks have failed?
i've never heard of one letting go...
isn't it a knon fact that the rods in the AUs are weaker than previous models?
but i do agree with above, under 300rwkw seems to be ok for them with a good tune
and having a bad tune will kill any motor.

i do however doubt 350rwkw with only 12psi?
or are you talking about your 331 setup EBXR8380?

Na old engine combo.. the compression was much higher.. May have run more boost ??
But I doubt it as it didn't have EBC with std Nissan actuators on wastegate..
Anyway the rotating assembly survived..
The latter model V8's and 6's have higher compression. So runing boost gives you LESS
tollorance for any fo pars in tune...
One thing that is available with aftermarket ECU's is over boost engine cut out..
It has saved my engine a few times when wastegate doesn't do what it should..
Keep in mind boost is a restriction of flow, my V8 heads flow very well being TFS R series heads ported by supperflow / Benny Gatt here in Sydney...
I think the AU 6 is alittle brittle due to its high compression also..
My sons STD AUll engines ED Fairmont with T04Z at 15 Lb makes just under 300 rwkw with loose C4 converter..
The combo works due to runing 11's first time out...

 

_________________

As in ZOOM 126 edition
331 Dart block,3.25/ 4340 steel crank, Oliver rods,TFS ported track heat heads, TFS track heat inlet Twin SC61 turbo's
Project 1UZ-EF has started.. S475 Turbo 4.0 V8 Mustang Celica.....

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 Post subject: Re: how many km till a turbo is out of the question?
Posted: Tue Jan 26, 2010 7:59 am 
Parts Gopher
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Location: Dubbo
NSW, Australia

@ 67rce

I have had three motors in my AU - first two did die, but due to bad tune.

Current engine running about 8.5 psi and making 222rwkw been going like that for a couple of years. No signs of damage.

 

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