My First Skyline

[Broonie]

Hi guys i have just bought my first Skyline and i am wondering what mod to buy next to increase my cars BHP.My cars is sitting at arround 300BHP @0.9 psi.It has a cat back HKS super dragger exhaust,GTR cams,in car boost,boost gauge,HKS induction kit,blitz dump vaule and a full GTR body kit with 18s.I am not sure if i should buy an upgraded head gasket so i can use more boost or buy a bigger turbo.Can someone pls help? Thanks

[RANDY]

And what sort of intercooler is it running? 0.9psi? you mean 0.9 bar, or 9psi? GTR camshafts or cam gears? I forgot the conversion for BHP, but what sort of power do you want to end up with?

As a rule of thumb, 12psi is relatively "safe" for boost, but expect a lesser life-span of the turbo. (personally I wouldn't push it past 10psi)

It sounds like an aftermarket ECU might be one of the next steps, along with a tune. Once the basic mods have been done, as you have already, tuning the AFR's can give a reasonable amount of extra grunt.

If you're looking for BIG gains, then perhaps an uprated turbo swapout, along with fuel-pump, regulator and injectors... but you'd still need to have the aftermarket ECU fitted to tune it all.

[impact_blue]

Has I got a front mount?? If not get that next, If so get a new computer to optimise what you have and see where that leaves you!

[RANDY]

impact blue! =-o

"There's a party in my pants and you're invited"

"Instead of changing up to 3rd, I pulled the handbrake on, and didn't realise what I was doing "

"It is 12.38am on Wednesday 23 November 2005. I am lying, nekid, on my bed. "

"Then I had a laser hair removal appointment for the… erm… nether regions."

Your site is a dirty read! =-D

[krzysiu]

bhp is pretty much the same figuire as HP. with 300HP you probably have a larger turbo. If your dont have a front mounted cooler then someone lied to you about its power because there is no way it would be 300HP with a stock cooler or stock turbo.

btw. Nice wheels, got me a set

Edited December 18, 2005 by krzysiu

[chaos]

impact blue! =-o

"There's a party in my pants and you're invited"

"Instead of changing up to 3rd, I pulled the handbrake on, and didn't realise what I was doing "

"It is 12.38am on Wednesday 23 November 2005. I am lying, nekid, on my bed. "

"Then I had a laser hair removal appointment for the… erm… nether regions."

Your site is a dirty read! =-D

<{POST_SNAPBACK}>

I'm a bit baffled at what that has to do with this guy wanting to increase his car's HP

[RANDY]

Absolutely nothing, but you thought it funny enough to use it in your sig! =-p

[chaos]

thats been in my sig for a while now.

[RANDY]

Yeah, for four days... it's still funny though. Have you read through her site?

[frankxinyu]

i doubt it would make that much power by the sound of it. u r runnin stock turbo right without a FMIC?? as someone said, even running 9 psi will reduce your lifespan of the turbo without a good cooling system. so maybe get yourself a FMIC?? since ur runnin a cat back exhaust system, maybe get a high-flow cat and a high-flow dump pipe?? get these basic things done b4 u go crazy. just my opnion any way.

Edited December 18, 2005 by frankxy

[RANDY]

I think he has one... "blitz dump vaule " Dunno what he means by "vaule" though.

[dezz]

I think he has one... "blitz dump vaule " Dunno what he means by "vaule" though.

<{POST_SNAPBACK}>

i thought thats what he was calling his blow off valve. value prolly = valve, and it "dumps" air.... hehe

[Baz]

A front mount intercooler would be a worthy upgrade, 0.9 bar is about the efficient sort of boost a R33 with a standard turbo should run, consider some sort of engine management, possibly a piggy back computer (ie. SAFC-II) or a complete stand alone (ie. PowerFC, Microtec etc.) to margine for more power if your aiming for in the future.

350bhp @ the wheels is probably a desirable figure and sensible figure to target for one stock internals on lower boost otherwise expect costly engine rebuilds in the near future.

Btw I have never heard of an RB25 powered car that could make 300bhp on a stock turbo and especially impossible if a FMIC is not present. Unless your running something stupid like NOS or methanol injection

My 2 cents

[srbskyline]

Your next mod should definantely be a GTR badge

[Dingo]

in terms of BHP and HP

think Of KW at the engine then RWKW

Ie

BHP = Usable power aka RWKW

Hp = power at the engine

hows the new line treating you randy by the way?

Edited December 18, 2005 by Dingo

[RANDY]

Paul!? "the street with the xmas lights" Paul? or "SR20DET" Paul?

It's been pretty good man! Few things here and there, but i'm enjoying the ride =-]

From what I quickly researched, brake horses and HP are pretty much the same thing, but kw to hp is always 2/3rds. So this guy has about 220kw, whether it's at the fly or wheels, we don't know. Interesting to see it put your way though, and I guess that's probably about right for the powerloss in most cars. Unless we start talking auto's.

[RANDY]

But you had a VS... that'd be my next-door neighbour, Paul. But he wouldn't know my nickname.

[Dingo]

nah Im Cromer Paul aka Leas brother

Edited December 18, 2005 by Dingo

[kralster]

I'm pretty sure hp to kilowatts is 3 quarters of a kilowatt is 1 hp so he has about 220 kw.

[Dee 33]

I always thought BHP was a power at the engine type measurement such that his 300bhp would = 220kw = 160ish rwkw.

Hardly unbelievable...

I'm guessing the guy who sold his car is referring to a measurement of power at the engine, not the wheels.