rb25 turbo specs

[geraldjohn]

hi guys

can anyone tell me what type of turbo the rb25det engines have? is it a t3 as i'm told? the reason i am asking is cause i plan to upgrade it, should i have it hi flowed? or just replace the entire unit with a t3/t4? has anyone done this before? and if so what hp gains should i expect?

thanx

[Steve]

Hi,

would be alot easier if you say what you would like to achieve - then you will probably get alot of different options:)

[geraldjohn]

thanx steve for your quick reply i am trying to achieve around 400 hp running 10-12 psi boost

[Steve]

At the engine or at the rear wheels?

[geraldjohn]

At the engine or at the rear wheels?

well i was looking at the engine,,, i am not accustomed to the rear wheel figures

[Steve]

I would think a high flow would easily achieve the sort of figures you are chasing:) if it is done properly. I had an easy 200rwkw (around 350 odd bhp) with the stock turbo at 12.5lbs.

what other mods do you have?

[geraldjohn]

I would think a high flow would easily achieve the sort of figures you are chasing:) if it is done properly.  I had an easy 200rwkw (around 350 odd bhp) with the stock turbo at 12.5lbs.  

what other mods do you have?

the mods that i have so far but have not installed yet are :-

1 3" cat back exhaust

2 field fuel controller, (does the same job as the apexi safc)

3 blitz dsbc boost controller

4 z32 afm

5 bosch rising rate fuel pressure regulator

suggestions?

[ed]

does the field fuel controller allow you to use the Z32 afm?

[Driver]

just out of curiousity how much it roughly to get a turbo hi - flowed.

[druzilla32]

just a question for you, sorry about it beign off topic, but i hope youi can help..

when i got my car there was a cable comming from the computer with a switch on it.. either "boxer" or "normal". it said Field above it... is this what you have? what does it do.

i would love any feedback as i have had the car for 6months and not known what this does.

thanks

[Steve]

the mods that i have so far but have not installed yet are :-

1  3" cat back exhaust

2  field fuel controller, (does the same job as the apexi safc)

3  blitz dsbc boost controller

4  z32 afm

5  bosch rising rate fuel pressure regulator

suggestions?

Intercooler will help alot

Upgrade your fuel pump

think about clutch, stock one can die at as little as 200rwkw

Full management would be a much better option than a fuel controller - controlling ignition is pretty important.

Dump and front pipe, you need to get all the restrictions out of the exhaust side, and get rid of the cat too (as long as you wont get in trouble:))

Also, for the power figure you are looking at, it could be a bit risky to run the stock injectors. I know alot of people do still use them, albeit stretched by the fuel pressure reg, but you run a real risk of detonation, and a set of injectors costs alot less than a full rebuild.

should get you there.

Anybody else think of anything I missed?

[Steve]

Driver, have a look at the GCG website, they are probably the most expensive ones I know of:) Alternately, do a search for a thread by BOOSTD, who did his own high flow with very good results for a few hundred dollars.

[Driver]

Driver, have a look at the GCG website, they are probably the most expensive ones I know of:)  Alternately, do a search for a thread by BOOSTD, who did his own high flow with very good results for a few hundred dollars.

do you have the GCG Website? i dont know what it is :Oops:

[Steve]

www.gcg.com.au

[franks]

i have enquired about a hiflow at GCG, i was quoted $1950 for Stage 1.

for that money, id be seriously considering a low km HKS 2530.

a brand new 2530 will cost you around $2500 delivered from www.greenline.jp and it'll include all the necessary bits and pieces and probably a HKS sticker too

[geraldjohn]

does the field fuel controller allow you to use the Z32 afm?

yes , it intercepts the afm signals and then relays them to the ecu

[geraldjohn]

just a question for you, sorry about it beign off topic, but i hope youi can help..

when i got my car there was a cable comming from the computer with a switch on it.. either "boxer" or "normal".  it said Field above it... is this what you have? what does it do.

i would love any feedback as i have had the car for 6months and not known what this does.

thanks

the field controller i have is a unit in which you have to install into the wiring loom,, its a separate unit with adjustments and a digital display that reads your 1/4 ille times, your true speed, your true rpm, your a/f ratio and your tranny shift points (if its auto) and a host of other things,, the unit is marked "field hyper-r boxer series", is this whats on the other end of youe cable?

[geraldjohn]

Intercooler will help alot

Upgrade your fuel pump

think about clutch, stock one can die at as little as 200rwkw

Full management would be a much better option than a fuel controller - controlling ignition is pretty important.

Dump and front pipe, you need to get all the restrictions out of the exhaust side, and get rid of the cat too (as long as you wont get in trouble:))

Also, for the power figure you are looking at, it could be a bit risky to run the stock injectors. I know alot of people do still use them, albeit stretched by the fuel pressure reg, but you run a real risk of detonation, and a set of injectors costs alot less than a full rebuild.

should get you there.  

Anybody else think of anything I missed?

intercooler----i have at my disposal a toyota supra fmic,, its not as big nor efficient as the gtr one but i guess it will have to work till i can get a real fmic

fuel pump-------i have a toyota twin turbo fuel pump

clutch-----full act clutch and pressure plate (6 puck copper/ceramic)

management-----i am trying to get my hands on a power fc

dump pipe-----this depends on what turbo i use,, right now its stock, which leads me to my first question,, that type of turbo is this? is it a t3? is it a t25? what is it? i have no idea.

injectors------ havent yet thought about these,, but i will see if i can get my hands on some 550cc's,, thanx for the replies guys and could anyone please tell me what type of turbo i have? its a stock series 1 r33 rb25det thanx

[geraldjohn]

Intercooler will help alot

Upgrade your fuel pump

think about clutch, stock one can die at as little as 200rwkw

Full management would be a much better option than a fuel controller - controlling ignition is pretty important.

Dump and front pipe, you need to get all the restrictions out of the exhaust side, and get rid of the cat too (as long as you wont get in trouble:))

Also, for the power figure you are looking at, it could be a bit risky to run the stock injectors. I know alot of people do still use them, albeit stretched by the fuel pressure reg, but you run a real risk of detonation, and a set of injectors costs alot less than a full rebuild.

should get you there.  

cat---- as for this,,, hmmmm well lets say that i havent had one of those for years now lol

Anybody else think of anything I missed?

[Steve]

the stock nissan turbo is neither a T25 or a T3, its nissans own.

You can get bolt on dump and front pipes from manufacturers such as HKS, that seperate the wastegate and turbine outlet pipes. fortuneately the nissan outlet is the same as a GT25 turbo, so no probs with compatability if you do go a GT2530 - which would be my first option before a high flow, unless of course you are doing your own?

Something else that wouldnt hurt, a good pod, but make sure you have a partition and CAI. The partition and CAI are really easy and cheap mods and make a world of difference on and off boost when the days start warming up.