T4 HIGHFLOW on R33?

[WLD747]

What do people reckon if i get a T4 HighFlow for a street use car. would it be a bit laggy? I want to run 16psi on stock internals.

My mods are below:

R33 2.5L, Stock Turbo, FMIC, 3'' Exhaust System.

Would it be fun to have as i have a large cooler.

Cheers

AK

[meshmesh]

Best person to speak to is Kyp from:

Advanced TURBO Performance

1198 Dandenong Rd Murrumbeena, Vic. 3163

Australia (61-3) 9569 4764

[RS500]

Originally posted by WLD747

What do people reckon if i get a T4 HighFlow for a street use car.  would it be a bit laggy?  I want to run 16psi on stock internals.

My mods are below:

R33 2.5L, Stock Turbo, FMIC, 3'' Exhaust System.  

Would it be fun to have as i have a large cooler.

Cheers

AK

It would depend on what specs the turbo is, but yeah, if you pick the right combo, it can be heaps of fun

Although, with a larger turbo and higher boost, you'll definitely have to pay some attention to the fuel system, otherwise the motor will go BANG!!!

//RS500.

[WLD747]

anyone got a T4 on their R33, comments welcome.

[JimX]

The previous owner of my car said the turbo on it was a 450hp T04. The guy at Garrett told me it was a T04E when I asked him what it was (I didn't say "Is this a T04?")

Since then though, I've discovered that most other people with T04's have an external wastegate. Mine is internal, so now I'm thinking I just have a T04 compressor cover and who knows what exhaust housing, which looks too small for it.

Small exhaust housing and internal gate aside, it goes really well. Starts spooling at around 2000rpm, and full boost (15psi) at 4500. Which is a little laggy, but not terrible by a long shot. It still feels quite responsive, and I hope to improve it some more with an adjustable exhaust cam gear in the near future.

It's doing well enough now to max out my AFM, which actually surprises me. I'm now thinking about increasing the exhaust housing size to fatten out the power curve a bit (not necessarily increase it).

[WLD747]

At the moment im running 15psi on my stock turbo but it seems to feel like its not making full power so i need to upgrade it. I think also im leaning out a bit so i might need a new fuel pump.

[Nrage33]

Yea i've got one...hi flowed T04, stainless steel wheels...I am told that running absurd amounts of boost is no problem with hi-flowed turbos. i've had it up to 15psi at times...now it makes 185rwkw on 10psi which is just nice for my daily driving. For real good results, an aftermarket ecu would help, but i'm only running an S-AFC, and with something like a rising rate fuel regulator, pushing 220rwkw could be done easily i think...just turn up that boost!

[WLD747]

Hey nrage so if i get a T04 would i need to run high boost to make efficient power of the turbo. What rpm does your boost starts. How does it run with 15psi boost? Would i need malpassi rising rate fuel regulator?

[JimX]

I've got stock injectors and the AFM is maxing out before the injectors. The injectors get up to 93% duty though, so they are being upgraded along with the AFM anyway. A rising rate regulator should do the job well enough for a mild power increase.

[BOOSTD]

I've got stock injectors and the AFM is maxing out before the injectors. The injectors get up to 93% duty though, so they are being upgraded along with the AFM anyway. A rising rate regulator should do the job well enough for a mild power increase.

I found that my PFC indication of 90% injector duty cycle was actually 100%, any addition of fuel made no difference to Air fuel ratio's

[Nrage33]

hey wld747, my boost starts at about 3500rpm...n yea, higher boost seems to help the turbo do better. the power really comes on after about 5-6psi. I only just found that out. works almost like a vtec

The rising rate fuel regulator will even out the fuel maps so that your air flow meter voltage doesn't max out, allowing you to run more boost. My car experiences boost cut at 12psi now becasue of this, so it's been tuned down to 10psi. the fuel regulator will do away with this boost cut problem (so says gavin wood)

Before I put my FMIC on, I was running 15psi momentarily with no problems, the car made 200rwkw back then...now it makes 200rwkw on 12psi.

basically, just get an S-AFC plus a fuel regulator, and u should be fine. 16psi will be no sweat, if that's what u want.

[WLD747]

anyone know if most T04 turbos have internal or exteral wastegates?

and what costs have people had when putting a T04 onto their RB25.

I got some questions also need answering so please help.

* I need a new exhaust manifold to put the turbo on! Right?

* Do i need new oil / water lines

* Whats the wastgate part?

thanks in advance

ak

[R31Nismoid]

anyone know if most T04 turbos have internal or exteral wastegates?  

and what costs have people had when putting a T04 onto their RB25.

I got some questions also need answering so please help.

* I need a new exhaust manifold to put the turbo on! Right?

* Do i need new oil / water lines

* Whats the wastgate part?

I got a t4 on my RB25... and it's for sale too at the moment

Did you ever come on a vic cruise up until approx 4 months ago???

t4 turb's are external wastegated is you have a true t04.

But i have a t4... with a t3 rear on my RB25.

so with the t3 rear you dont need an external wastegate

So my setup is like JimX.. t4 core/front housing.

and the t3 style rear end.

Most people think that when you say t3/4 (which ours are) that people mean a t3 CORE machined out to fit t4 wheels in.

You might be able to fit it to the stock manifold.

From what i've seen on a number of cars lately... anything is possible with a bit on enginuity (sp)

As for response same as JimX, it was a little laggy but overall not too bad.

13psi at 4200rpm or so.

and down at BMT we made a lazy 203rwkw on 13psi.

but i reckon the turbo wasnt near it's efficiency range at all as we bumped it to 15psi quickly and gained 30rwkw.

But then the fuel system wasnt too happy with that and needed more than just a fuel pump. So i'd suggest injectors as well as a fuel pump.

little bit more boost, about 17-18psi.

and then it's REALLY get up and move.

I reckon go for one! Is you set it up right as RS500 said then you wont have a problem at all with it.

and they are cheap to rebuild too

dont forget mine is for sale :headspin:

Nrage33 do you have an internal or external wastegate?

ash

[Jay95R33]

WLD747 - Toyota made a TO4 equivilant that is internally gated, or should I say, have a turbo that can be highflowed to be a TO4 that is internally gated...

It's the CT26. Found on MR2's, GT4's (3sgte motors).

J

[Dr_Drift]

WLD747 - If your interested in comparrison's pop down to BMT and I'll print you off around 10 different turbo packages for RB25's all with different characteristics.

Doc.

[WLD747]

Sure dr drift ill come down in the weekend.

WLD747 - If your interested in comparrison's pop down to BMT and I'll print you off around 10 different turbo packages for RB25's all with different characteristics.

Doc.

[Dr_Drift]

np

[the_tonkau]

Hey Dr Drift,

You suck arse!! haha

The German Fonzy !!

hehe

[Dr_Drift]

Hey Dr Drift,

You suck arse!! haha

The German Fonzy !!

hehe

Mate, you've smelt the arses round here, and you know what I mean when I say that aint a pretty thought :spew:

Doc.

[KamikazeR33]

the highflowed t04 im puttin on my r33 should give me about 275rwkw at bout 22psi boost

on a s13 the same turbo (same spec i think, except his is bb) in making approx 300rwkw