Silvia Club of NSW

Just looking for input on chasing 200/220 kw on s13. Am looking at turbo upgrade just wanting to know opinions and if im on the right track.1st looking at Apexi power fc as my boost controller, Am looking at gt28rs turbo is this able to handle the 200 or so kw im after ? What other turbos worth considering ? What models in the hks or trust catagory would do the job ? Will be upgrading front brakes and also installing lsd.Also will the gearbox, clutch any other parts need to be upgraded aswell to handle the extra power ? Thanks guys

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if u r using the pfc as the booost controller, u will need to purchase the additional solenoid for it

but id probably get a seperate one, or even a bleed valve will do

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It's a fairly simple formula to get 200 rwkw these days.

As far as bolt on's go you will need: manifold, turbo (the disco should do it), full exhaust, frontmount and boost controller. Cams will let you do it with less boost, otherwise expect to be pushing 1 bar plus into the engine.

200 will be stretching the stock management alot. As a minimum to maintain fuel to the engine you will need a fuel pump, safc, and adjustable fuel pressure reg. That will see you crack 200 fairly safely. If you want to do much more you really need to shell out for a new AFM, injectors and either a daughter board or pfc or some other form of aftermarket management rather than an safc and a reg.

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meh

Think / plan further ahead because what you do in the interim may be a waste of your money.
Unless 200rwkw is all that u want out of your car.

heres my quick suggestion:
a) fuelling - larger injectors and a decent fuel pump.
b) ecu - power fc. dont bother with the piggy back units unless all u want is a headache.
c) boost - avcr will do you fine and work with the power fc well.
d) definately need a better turbo. you could get away with a s15 turbo.
e) some tuning and there's your 2xx mark.

A stronger clutch will come in handy with those power figures.

Whats the cooling like on your car? have you got a decent radiator / intercooler?

Ernest

Gee this is an old thread, started this ages ago , anyway cooling system on my car at the moment have stock radiator and hydrid front mount gt spec intercooler.I was of the opinion that the stock radiator would be fine ? Is this correct ?

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it'll be fine,for a lap or two. after that,you'll see temps getting up into the red zone.

get something bigger,and ideally,put in a late model water pump,a larger water pump pulley,and a header tank.


Justin...

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STI - Made in Texas,not Japan.

Is a header tank a necessity you think fergo? particularly in a car with a stock engine/radiator configuration? As the system has a bleed anyway.

The stock radiator will be fine as long as you don't plan on any sustained high rev/high boost driving. For the odd squirt on the street or on the drag strip it'll be fine. An upgrade is a worthwhile investment if you plan on doing track work (and funilly enough i'm at the point of needing to upgrade mine too).

An oil cooler would be worth considering in this situation as well, particularly if you upgrade to a trust or early HKS non watercooled turbo.

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meh

I'd fit a header tank on a car I was going to use seriously,a lot of the time.
if you're just going to give it the odd squirt,and mostly putt around in traffic,and only do two or three laps or a couple of passes at the strip before coming in,you won't need it,the same as you won't need a big radiator.

if you go for extended drives of 2hrs plus,where a lot of the time you're at pace,and don't pull over for more than 5min at a time at each leg of the journey,then you need everything,oil cooler included.

remember that oil and water temps are co-related as well. if you keep the water down close to normal operating temp (86deg),the oil temp will be lower as well.
oil coolers are a good idea,but again,unless you're working the car hard a lot of the time,you're wasting your money.

if you haven't already,get some good quality gauges (autometer does not count for this) and monitor your temps. if the water regularly hits 98deg or higher,you need a larger radiator. if the oil gets above 110deg,you need an oil cooler.


Justin...

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STI - Made in Texas,not Japan.