Kinugawa Japanese Turbo Wheel And Housing

[fastfwd]

Just purchased a new Garrett GT3582R for my TT and want to get the most out of it.

I found Kinugawa turbo parts sells the A/R .70 housing and the billet wheel upgrade.

I spoke with MTQ in perth and they said they have installed a few and have balanced fine and look half decently made.

What are your thoughts on this brand and products?

They also sell a Anti Surge housing, what is the benefits of this?

[juggernaut]

I believe the Skyline boys are using these with great success - do a search on the Skylines Australia forum. Or post a topic.

The anti-surge housing is beneficial where the turbo supplies more air than the motor can ingest. Usually at lower engine rpm when the turbo is spooling. Can eventually lead to turbo failure. I had this problem with a twin scrolled 3071 coming onto boost on my 200sx. I went to to a 52 trim 3076 with anti surge cover and the problem was fixed. The anti-surge cover will have a slot machined into the compressor cover intake snout usually before or between the splitter blades of the compressor wheel to bleed off any air in a surge situation.

The anti surge cover does make the turbo noisier though as my 3071 was fairly quiet whereas the 3076 literally sounds like a fighter jet when spooling.

It has been said there is a slight loss in turbo efficiency with the anti-surge cover - I did a few other mods which made the whole setup more responsive so I can't comment on the loss of efficiency.

Don't know if you need an anti-surge cover on a 4 litre ford though, particularly if you are still using the 1.06 ex a/r and using a .70 a/r comp cover.

Edited 25/11/13 05:20 AM by juggernaut

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Thanks for that. I have heard of the anti surge covers before but ive never used them or not known what they did. I thought it was used in the case when if air was to pass back through the turbo in the scenario you didnt have a BOV. Stops it from killing the turbo over time. I was never sure if this was the correct reason why though.

Yeah Well I have only heard good things about Kinugawa products so im probably going to buy some mods from them for my turbo.

[XRSEXT]

Would you really want to risk it?? get a genuine garret through mtq GTX3582R and it will have an anti surge on it anyway?

[Ralph Wiggum]

I believe the Skyline boys are using these with great success - do a search on the Skylines Australia forum. Or post a topic.

Don't know if you need an anti-surge cover on a 4 litre ford though, particularly if you are still using the 1.06 ex a/r and using a .70 a/r comp cover.

Lost of good info in this posted (edited to save space)

Last line is correct. Anti Surge covers are "usually" required when running a mismatched/hybrid turbo setup. Unlikely you'll run into surge issues running the Ar's mentioned In Juggers post. Unless your chasing the noise/wank factor?

[fastfwd]

Kinda like the noise wank factor but intake is super loud as it is with plazmaman under batter intake kit. I think if I had any louder I would have problems with the 5 0

Would you really want to risk it?? get a genuine garret through mtq GTX3582R and it will have an anti surge on it anyway?

I've only heard good things about Kinugawa, including from MTQ. If I knew about the GTX3582R I would have bought that turbo in the first place but I didnt so im basically making my own GTX with the Kinugawa front wheel and housing.

This is the kinugawa anti surge housing

[Ralph Wiggum]

Also, don't be afraid to scope out KTS (Kawaksaki Turbo Systems) Wheels

If Kingugawa = Good KTS = Better

http://ktsturbobilletx.com/

[juggernaut]

Thanks for that. I have heard of the anti surge covers before but ive never used them or not known what they did. I thought it was used in the case when if air was to pass back through the turbo in the scenario you didnt have a BOV. Stops it from killing the turbo over time. I was never sure if this was the correct reason why though.

Yeah Well I have only heard good things about Kinugawa products so im probably going to buy some mods from them for my turbo.

No, the anti-surge cover does not remedy not using a bov.

Surge happens when you are on the throttle and the ex gasses are spinning the turbo and the turbo is supplying more air than the motor can ingest at a certain engine rpm. Pressure builds in the system but because you've got the throttle nailed the turbo is still being spun by the engine ex gasses and trying to force more air into the engine - eventually the pressure backs out of the compressor intake and is fairly audible when this occurs. Turbo failure can be the result.

A bov is when you are off the throttle and the throttle plate is closed or closing and air backs up against the throttle plate - the bov bleeds off this pressure to keep the turbo from loosing rpm between gears or any other situation when you are on/off the throttle. Because the the throttle isn't nailed the ex gasses are not trying to spin the turbo as it would if the throttle was open in a surge situation.

Kinda like the noise wank factor but intake is super loud as it is with plazmaman under batter intake kit. I think if I had any louder I would have problems with the 5 0

I've only heard good things about Kinugawa, including from MTQ. If I knew about the GTX3582R I would have bought that turbo in the first place but I didnt so im basically making my own GTX with the Kinugawa front wheel and housing.

This is the kinugawa anti surge housing

The radially drilled holes is part of the anti-surge system - you can also see the anti-surge slot machined near the base of the comp cover. Air bleeds out through the slot and out of of the holes in a surge situation. in a normal boost situation the reverse occurs

[fastfwd]

Also, don't be afraid to scope out KTS (Kawaksaki Turbo Systems) Wheels

If Kingugawa = Good KTS = Better

http://ktsturbobilletx.com/

How good is this page:

http://ktsturbobilletx.com/?page_id=29

Can anyone explain the difference in blades sizes and length height and amount and what the actual outcome is? I figure quicker spool less power, later spool more power, correct me if im wrong.

[turbotrana]

It seems the 11 blades perform better at top end and the 6+6 (6small + 6 large blades) are better on the bottom end. I just swapped over to a 11 blade GT3582 and from the seat of the pants I reckon the bottom end has softened whilst top end seems better.

Some have dynoed the GTX wheel not loosing anything bottom end but I have read a few saying definately lost a little response there.

There must be some guys who have gone from the GT to GTX who can comment.

I don't think you need the ported cover on the above wheel for the Ford 4ltr. I'd go without, I don't experience surge but haven't really gone thru all load cycles yet but it feels good in the car with the stock 0.5 cover.