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turbo boost

Posted: Mon Jan 09, 2006 8:17 pm
by numbnuts
to turn the boost up do you screw the big silver thing on the bit that goes across the top of the motor in or out? and what is the rule per
1/4 turn?

Posted: Mon Jan 09, 2006 8:41 pm
by Hoonz
if u don't know what ur doing don't touch it ... there is no general rule
if u fawk it up you'll fawk ur engine

never heard of "big silver thing on the bit that goes across the top of the motor in or out to adjust the boost"

Posted: Mon Jan 09, 2006 9:00 pm
by numbnuts
thats what i was told. so where do you do it then?

Boost ajustment

Posted: Mon Jan 09, 2006 9:19 pm
by Nigel R
U should get a boost gauge first so u can tell what the boost is.
To raise the boost presure u have to blead off the waste gate with a boost controller .U can buy them from most performance shops.It is a little technical if u don't now what u are doing.

Hope that helps a little

Nigel

Posted: Mon Jan 09, 2006 9:51 pm
by Newhouse
To adjust the boost on your turbo you can put washers under the bolts on your turbo actuator, thus pulling your actuator down, and increasing your boost. Or you could gat a boost "T" from turbosmart or something and do it that way, but you will need a boost gauge. Its pretty self explanetry, you could do it your self.

Posted: Mon Jan 09, 2006 11:13 pm
by BIG GQ
Man that "big silver round thing" in the cross over pipe is the factory blow off valve. Screw it in or out as much as you want it will either crack the cross over pipe if screwed in too much or pull out if screwed out to much but will do fark all towards increasing your boost. It sounds like you best leave things to a mechanic. You also need to look at fuel mixtures, intercooling (if not already done), etc before you start messing around. To you know how prone to overheating a nissan turbo diesel is when you start messing with fuel mixtures and boost? As I said sounds like you best leave it to a professional if you now this much but if you insist on trying it I will take pics of one of my rigs late tomorrow night and try and explain things to you.

Posted: Tue Jan 10, 2006 12:02 am
by bogged
increasing boost you should increase the fuel too...
as others have said, dont fuk with what ya dont know.. you could total the engine

Posted: Tue Jan 10, 2006 10:32 pm
by Brett S
ah but "they" also say the best way to learn is by your mistakes. But yeah if ya don't have a clue and it is running well dont f**k with it. but the cheepest way to get more boost is to bleed off your wastegate actuator line with a tee piece and slowly drill bigger holes in it to increase boost or buy a proper controller to do this. But more boost aint gonna do anything more without more fuel. You don't get something for nothing though, fuel = power no matter how inefficently you burn it.

Posted: Wed Jan 11, 2006 12:10 am
by toughnut
Brett S wrote:ah but "they" also say the best way to learn is by your mistakes. But yeah if ya don't have a clue and it is running well dont f**k with it. but the cheepest way to get more boost is to bleed off your wastegate actuator line with a tee piece and slowly drill bigger holes in it to increase boost or buy a proper controller to do this. But more boost aint gonna do anything more without more fuel. You don't get something for nothing though, fuel = power no matter how inefficently you burn it.
No... the best and cheapest way to learn is by other people's mistakes :D