HKS GT-RS Installed

[benm]

It'd be fine for the first power run after that you'd want out

[Reedy]

Its stock internals except exhaust cam, on 0.9 bar still just as response and enough power. Its IT 50, what does all that stuff mean? BP:99.0 RH:25 AT:39 IT:50 RR:013 TN:3.768 CK:726? I have heaps of wheel spin all the way through first gear, does anyone now how to best set up the car and what tyres to use to get more grip. I have tein super street coilovers set 3cm lower and its shocks at 8 out of 16 also have whiteline handling kit with sway bars and bushes to reduce camber by 0.75 degrees in rear.

[lukits01]

What exhaust cam have you got?

[croat]

Reedy very nice, are the internals of your RB25DET standard?

Can anyone tell me how their GT-RS performed at lower boost such as 0.8 or 0.9bar, apart from lower power output, still responsive?

Boost i got 210rwkw on 0.8bar which is pretty much standard boost. on that it seems a little laggier but top end it still goes.

[Sydneykid]

Its stock internals except exhaust cam, on 0.9 bar still just as response and enough power. Its IT 50, what does all that stuff mean? BP:99.0 RH:25 AT:39 IT:50 RR:013 TN:3.768 CK:726? I have heaps of wheel spin all the way through first gear, does anyone now how to best set up the car and what tyres to use to get more grip. I have tein super street coilovers set 3cm lower and its shocks at 8 out of 16 also have whiteline handling kit with sway bars and bushes to reduce camber by 0.75 degrees in rear.

IT = Inlet Temperature

AT = Ambient Temperature

RH = Relative Humidity

RR = Ramp Rate

BP = Barometric Pressure

CK = Check sum (formula to validate these settings)

Re traction problems, Teins, what's the rear spring rate? Usually I find it WAY to high. Anything over 200 lbs per inch (3.5 kg/mm) is too much.

[benm]

SK: By having the wrong rear spring rate can that cause axle tramp or is the spring rate totally unrelated?

[Reedy]

Not sure what brand but got the exhaust cam gear from UAS said it gave another 5kw and power curve keep on going for a bit longer.

[GunMetalR33]

The engine light will also come on if your AFM maxes out. If you are running 1.3 bar with the standard AFM then it will max out for sure.

Just took it out for a run now, first cold night since i got it. on 1.3 bar boost at high rpm engine cut-out light comes on, was told that this is pinging although i cant hear anything. going to run it back on dyno to set timing back a few degrees.

I am sure thizzle made 250kw @ 1.3 bar, it is impossible to make it at 1 bar.

[geno8r]

The engine light will also come on if your AFM maxes out. If you are running 1.3 bar with the standard AFM then it will max out for sure.

Boro has a z32 AFM...

[Reedy]

"Re traction problems, Teins, what's the rear spring rate? Usually I find it WAY to high. Anything over 200 lbs per inch (3.5 kg/mm) is too much."

They are 4.0 kgf/mm so maybe the spring are a bit hard