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Hi All,

I had my standard r33 s2 turbo go west on Sunday. Both impellers disintergrated at once! I have pulled the old turbo out and am in the decision process of considering upgrading to something with mroe potential and newer design or hi-flowing the original.

Mods are as follows:

K&N Panel filter

3 in dump, High flow cat, trust 3 in cat back

GReddy Profec 2 boost controller

GReddy front mount kit (brand new as old one has impeller lodged in it)

Peoples opinions?

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https://www.sau.com.au/forums/topic/190338-to-hi-flow-or-not-to-hi_flow/
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looking to get somewhere in the region of 275rwkw. Car is used for street for the time being and probabl;y for the occasional track day (both grip and drift).

I drive in a bit of traffic every now and again so response is high on the list, but i can manage 3500 lag

be prepared to spend some serious cash if ur chasing 275 rwk. i very much doubt ul do it on a hiflow.

on the other hand if u set urself a goal of 250-260 you will get it on a hiflow with nice spool time.

set urself a goal of 250..least u know your conrods will be up to par

Edited by R33GOD

Cheers guys,

I might go for the Hi-Flow. I spose it also means that I wont have to upgrade fuel pump, injectors and computer if I keep the boost reasonable for the time being.

With the Hi-Flow, 3' dump (HI flow cat) and trust 3' cat back zorst, k&n panel filter, greddy FMIC, and GReddy boost controller I should be making round 200rwkw anyways hey?

about to load the skyline onto a trailer and take it down to screaming performance in wollongong (used to work there off and on). I think Daryl has a few options as to new turbos that will only require new oil and water lines and bolt onto the original manifold and dump pipe. Apparently they are more responsive as well.

I'll have it dynoed before it leaves the shop so I should know what power it makes.

$5 bucks to the person who can guess the rwkw figure right!

To add more info for people. I will be running the standard fuel system for the time being. So my guess is smack on 205rwkw... I will post the dyno sheet when the car is running! Make sure you have paypal accounts.

Oh man is upgrading fuel pump and injectors on the cards. I will run lower boost levels until I have saved up some more dosh to get the upgrades. I've already had to shell out for a new turbo, new hi flo cat and new intercooler. I took the more expensive option of buying a GReddy FMIC...

Are all FMIC the same? Was it worthwhile to buy a proper brand name cooler rather then a no name cooler

Oh man is upgrading fuel pump and injectors on the cards. I will run lower boost levels until I have saved up some more dosh to get the upgrades. I've already had to shell out for a new turbo, new hi flo cat and new intercooler. I took the more expensive option of buying a GReddy FMIC...

Are all FMIC the same? Was it worthwhile to buy a proper brand name cooler rather then a no name cooler

I doubt a brand name FMIC will impact performance at low boost; but at high boost the design is probably better for air flow (i'm not 100% on the design differences) but you're definitely getting a better quality product with GReddy and it'll last longer than that Home-Brand-made-in-China-crapola :whistling:

Let us know how the Hi-Flow goes...i was considering doing the same to my hammered stockie turbo.

I made 161rwkw with just a boost controller running 11.5psi. I have since then done the full hi flow exhaust, FMIC and air filter. Now with the hi-flow turbo I hope I should make round the 200rwkw mark.

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