Need Help With Mods To My Car - R32 With Rb25

[bretto]

i have bought this car from japan, it landed last week andd me and a mate looked at it on monday. we couldnt work out why they had done certain mods and not the other. then rezz told me it was tuned by a shop called blackline racing in japan. no ive emailed them asking them why they had done certain mods and not others. it has:

rb25det

hks adj. cam gears

264 cams

hks type r i/c with 3 inch piping

1.5mm metal headgasket

as well as

turbo back zorst

pod filter

sard fpr

huge greddy radiator

twin plate clutch

etc

but with a stock turbo. now when i emailed them i asked them what turbo it was running and he told me that was the turbo it was running there when they tuned it. then he gave me this response which he has obviously translated and makes no sense. if someone can mnake sense of this can they please explain it to me.

thanks.... brett

dear@ brett weick

Inside of a question Why is thick piping used for a normal turbo?

I explain.

It has a big meaning, in case ECU is arranged.

It is important although it cannot explain well in English.

If it says simply

Piping is made thick, in order to accumulate air firmly, to set up ignition

time highly and to take out torque.

that is, air -- a turbo -- it is carrying out in order to store air so that

it may not be pushed into engine

Moreover, valve timing is also set up so that valve timing can also set up

the timing of ignition early.

That is, it is tuned up in order to make torque and power an compatible

setup.

Although he wants to explain details more, since I cannot speak English, I

cannot explain well.

I'm sorry

thankyou@blackline@Suzuki

[bretto]

this is the first email he sent me with the mods listed

dear brett wick

My name is Suzuki of a black line.

I cannot speak English.

It apologizes for it being hard to read.

Since the factory was burned down in the fire in 2003y,

since details do not remain, the spec. of this car is not understood

clearly.

:It is rough specification.

>enjine RB25 –mileage -- unknown >enjine nonoverhale

>head gasket 1.5mm? for metal

> fuel injecter normal 380cc for@RB25DET

>Turbocharger normal for RB25‚c‚d‚s

>ECU@Original Arrangement@

–It carried out by actually running.ifor@a/f@meterj

>camsyaft@HKS@IN/264@EX/264@Rushes adjustment type

>Intercooler@HKS@Rtype

>Clutch@@HKS@type@twindisk

>Transfer@@unknow

Unknown except this

I'm sorry

If it may not understand yet, please ask freely.

thanks

blackline @Suzuki

[Sydneykid]

Simple stuff, nothing too confusing there;

They don't now have far the enginehas travelled and it wasn't rebuild, just a thick headgasket was installed.

It has a standard tubo because they haven't upgraded it yet. Lots of stuff was done ready for a bigger turbo, but it didn't get done.

It also sounds like it has the standard ECU, but there may be some tricks with the AFM or its voltage signal to the standard ECU. Worth having a close look at the AFM and the wiring into the ECU.

It has 3" pipework because they wanted to make sure there was no restriction on the standard turbo. That way it will flow as well as it can. Standard turbos don't like much more than 10 psi for long periods, so the 3" pipework makes sure the full 10 psi gets to the engine. It also helps to lower the inlet air temps, so they could run lots of ingition timing (advanced) for more torque.

That's the same reason why they used the HKS TR intercooler, make sure there is no restriction. Get as low loading on the turbo as possible.

It has standard injectors, the stated rating is 370 cc's, but they generally flow a little more in real life, hence the 380cc's.

The camshafts are HKS264/264 and it sounds like they also fitted solid followers, not hydraulic. Have a close listen, you should be able to pick the slight tick tick of the lash. Camshaft pulleys (2) would indicate it no longer has VVT, so the cams are probably GTR 264/264 as the VVT (inlet pulley) pulley won't fit. Logically that's why they have gone for 2 adj pulleys. The camshaft timing has been set up for the best response and torque, not simply maximum power.

Turbo back exhaust, Sard FPR, Greddy radiator, POD you already know about.

It has a twin plate HKS clutch, but they have no idea what gearbox or diff it has.

In summary, it was a work in progress, the turbo was on the list to get done as was the ECU. Hope that was of some help:cheers:

[bretto]

sweet as

thanks sk, it makes sense now they were building up to it but never got there.

now the big q's, what turbo would be a good option. looking to chase conservatively 200+rwkw would i be looking at a hi flow gcg job or heading more towards a t67 or something similar. id really like to get into drifting so something responsive would be best

thanks....brett

[Sydneykid]

sweet as

thanks sk, it makes sense now they were building up to it but never got there.  

now the big q's, what turbo would be a good option.  looking to chase conservatively 200+rwkw  would i be looking at a hi flow gcg job or heading more towards a t67 or something similar.  id really like to get into drifting so something responsive would be best

thanks....brett

Hi Brett, lots of alternatives, they have decompressed the engine so it will tolerate high boost, hence 300 rwkw is not out of the question. The GCG ball bearing hi flow will get you ~265 rwkw, so it is well within the capability of the engine. Sorry, we only use ball bearing turbos, so I can't comment on the T67. You could use a GT3037, or a GT3040, or a GT2560, or a GT2835, external wastegate would be better, as would a decent exhaust manifold. It really depends on the budget and how serious you are about drifting.

[bretto]

well basically i wanna get into it so i will drift the car as it is, then decide how serious im going to get. 300rwkw sounds like fun though, but i will have to decide what want to do as i realise ill need to go turb, ecu and injectors to get max power out of this thing.