High Flow

[Adz2332]

when some one says they got there turbo high flowed, what does that mean?

thanks

[Slide]

Taking say a stock R33 turbo and fitting larger internals by means of machining the housings to fit them.

Here are a couple of pictures to show the differences.

Highflow turbo:

Standard rear housing:

[Adz2332]

Taking say a stock R33 turbo and fitting larger internals by means of machining the housings to fit them.

why wouldnt u just buy a new turbo if u were going to go to all that trouble?

[Slide]

Highflows are generally direct bolt on items with no requirement for modification for intake and exhaust.

They are the best bang for your buck upgrade you can get for 250+rwkw

[Lazy-Bastard]

why wouldnt u just buy a new turbo if u were going to go to all that trouble?

cost, ease of fitment and everything mates up to factory gear, exh. manifold, dump pipe etc

[Adz2332]

Highflows are generally direct bolt on items with no requirement for modification for intake and exhaust.

They are the best bang for your buck upgrade you can get for 250+rwkw

what sort of money would you be looking at for one of these turbos?

and what kind of mods would you need to make 250Kw at the wheels apart from the turbo? my car has 204.5kw now. Also my car comes on boost lik straight away no lag at all, changing the turbo over to one of these would it be much different in when the boost kicks in?

[mad082]

it isn't really much trouble since there are nice people like slide who do the hard work for you. you just have to unbolt the old turbo and bolt up the new turbo.

cost wise slides are about half the price of a new turbo that will deliver similar results.

then there is the problem of having to alter dump pipes, oil and water lines for different turbos.

[mad082]

whenever you go to a bigger turbo you will always get more lag. slides turbos are bush bearing so you get a touch more lag than a ball bearing, but once they are spooling there is pretty much no difference.

[Sambo33gtst]

So what is the deal there with doing it?

I've been told in some cases, companies send you a hi-flowed turbo and in return u send them yours plus cash their way....is this right?

[eMsta]

wonder if u can make a twin turbo set up with the high flow and the stock turbo - would be wierd, but interesting (to me anyway)

[32line]

so how much power are u going to gain just by getting a high flowed turbo?

and how much does it cost to get done?

[Sambo33gtst]

About $600-$700 for a 33 turbo...that about right?

[mad082]

gcg do an exchange service. you have to remove your turbo, send it away, they send you one back and then you bolt it back on. it is a ball bearing unit and it costs about $1800.

slides aren't an exchange unit. and about $900. they are only a bush bearing.

[Adz2332]

gcg do an exchange service. you have to remove your turbo, send it away, they send you one back and then you bolt it back on. it is a ball bearing unit and it costs about $1800.

slides aren't an exchange unit. and about $900. they are only a bush bearing.

whats a bush bearing? and whats the diff between bush and ball bearings?

[32line]

and if this was the only mod done to ur car...wat type of power gain u lookin at in a 32?

[Slide]

Alll the questions have already been answered many times before in the forced induction section of this website

Ball bearing vs journal bearing: For these size frame turbo's the differences are not noticable enough to hinder performance.

http://www.skylinesaustralia.com/forums/in...=131723&hl=

and if this was the only mod done to ur car...wat type of power gain u lookin at in a 32?

This thread was set up by a member on the forum to document the great results he achieved along with others with one of my turbo's on an RB20DET

http://www.skylinesaustralia.com/forums/in...howtopic=142615

[R31Nismoid]

whats a bush bearing? and whats the diff between bush and ball bearings?

The search function located on the top right hand toolbar

Lots of the things your asking can be found easily, and with pretty detailed responses

[GTRgeoff]

Just to throw an oar in, the difference between bush and ball bearing from an engineering perspective is very little in terms of performance, however a bush will wear slightly faster than a ball bearing. In operation they both run on a film of oil so there is zero wear, but at startup or switch off the bush will spend a miniscule amount of time with the metal surfaces contacting. Taken over a very long period of time the wear adds up, but consider that the stock GTR32/33 turbos are bush and many are still running strong today there is really nothing to worry about if you take the time to warm up and switch off with some thought for the mechanical components of your car.

Many also consider that a BB will spool faster, but this is mostly due to newer technologies used to lighten the rotating parts of the turbos with BB and not any specifics of the BB vs bush system, while most bush systems have remained static development wise for quite some time.

Finally, a highflow still looks exactly the same externally when visually inspected so remains technically completely legal. So for a stock looking setup the value for money remains with the bush bearing at about half the cost of the BB, and that is exactly the direction I have taken.