TTT

No idea.. but I've got my copy on paper.. hehehehe

YEP.. If you ever get to see any of the JAP cars spark plugs, they are always sort of like a rusty orange colour due to their high octane fuels. No need to worry about it. Octane boosters do that to the plugs.

There is documentation on the skylines downunder site.. But to keep it short. Disconnect your battery, step on your brake pedal a few times until the brake lights stop going on.. this will drain all the power left in the car.. Then connect the battery back up and start your car and go for a thrash. You have to thrash the car so that the computer learns how you drive it and keeps those sorts of setting.. Thats the low level explanation.. If you go to.. http://forums.skylinesdownunder.co.nz/ look for the document called "THE SKY's THE LIMIT" about 60 pages I think.. I think it's in a thread called "FREE HORSEPOWER":cool:

Am I too late for a spot?

Dude.. Listen. the fluttering noise is the air being chopped by the turbo blade. it doesn't matter if there is a air filter or not. it is just the sound caused by the air having to go back through the turbo blade cause the BOV didn't open to let it out with a psshhh. I just said air filter cause on most cars, you have an air filter (if you've got half a brain - without it, who knows what would end up in your engine). but the sound is caused by the air being returned through the pipes to the turbo blades because the BOV didn't open to let it out during gear changes or when you back off from the throttle. do you get me.? If you look at a turbo's inlet blades, they are on an angle which when spun, sucks air inwards. so when the air in the pipes gets stuck and no bov to vent it out, it has to escape from somewhere and in goes back to the turbo and of course the blades are designed to suck air in and not blow out, this causes a weird fluttering sound as the air pushes through and gets chopped up. huh??

002 NVS Did you even read what I wrote? THERE IS NO BOV THAT MAKES THE CHOOO CHOOO CHOOO OR FLUTTER OR WHATEVER YOU WANT TO CALL THAT NOISE... wastegates do not make that sound either... all BOV's make some sort of PSSSHHH noise when they open. the other chattering/fluttering noise is coming from your air filter as the air gets chopped through the turbo blades and goes back out of your air filter As for the external WASTEGATE... the only thing that a wastegate does is open up to prevent over boosting. it doesn't flutter or phhhsst or anything. if you have a pipe that goes from the wastegate straight out to atmosphere instead of plumbing back in to the exhaust, then once the set boost is reached, the wastegate will open up and allow the excess exhaust gasses to flow out of that gap instead of going through the turbo. When this happens you will hear a very loud screaming/roaring sound because it is like having a very short exhaust pipe with no muffler. OK??

Adam... it's not your BOV that causes that sound.. when it doesn't open under low boost, it's as if there is no valve there at all. So it's not your BOV making the fluttering noise.

hhmmm "speeeeed holes hey"??? Speed Holes.. how funny is that.. I thought the 2 holes were called N1 bumper inserts. Isn't there an N1 version in all the GTR's or did they just do that in the R34 and all the other GTR owners saw them and thought "sweet" I'll take 2 of those there speeeed holes.. I'm going home to take to my bonnet with a axe... I'm a get me some of them there speeed holes..

The link I meant was the one that TROPO posted. Sorry mate.

Hey KinG-R32.. <==========Do you recognise this car on the left?

Can't remember.. Try both and performance forums too...

ZAHOS!!! Dude, someone has done one on a R33 and he documented everything he did, word for word, step by step and with pics and posted it. I can't find the thread. I'll keep looking but you should do a search as well. It was a really good document.

Joel.. I get what you mean.. I think that it's hard to explain in just words.. you have to remember something guys.. when you talk about 12 psi or 8 psi, you are talking about the amount of air pressure that is in your manifold.. The boost pressure that your boost guage shows is the amount of pressure (PSI) in your manifold.. not in your turbo. see if I can make this a little easier (or completely confuse everyone and my self) air gets sucked through the air filter. Spins through the turbo and gets compressed. this how air flows through the intercooler where it is slowed down a little as it is cooled. it then heads up to the throttle body, where it enters the manifold and gets mixted with fuel and burnt, goes through your exhaust manifold, through the back end of the turbo and out your exhaust. Agreed? now, with our skylines (as an example, R32 GTST RB20DET with 10 psi boost.. it will make it a little simpler), the computer is set to open the wastegate when it sees 10 psi in the manifold. The standard turbo on the RB20DET has to spin at (example) 150,000 rpm. this is the speed at which the shaft is spun. When 10psi is reached the computer makes the wastegate open to make sure that it doesn't allow any more pressure to build up. Now. you have heard about AR sizing and so on.. I don't really know which one means what and so on but basically if you have a larger AR, then it is going to flow more air in. Lets say the standard turbo AR is .46 (what ever it is measured in.. mm??) this turbo has to spin the shaft at 150,000rpm to produce 10 psi of air in the manifold. The standard intercooler is a little restrictive so there is probably about 12 or 14psi of pressure just before the entry of the intercooler. a better intercooler could show that at 150,000rpm by the turbo could produce 12 psi at the manifold because the intercooler is not as restrcitive. back to the turbo.. If we stick on a different turbo (lets say the slightly larger turbo from the VG30DET), this turbo will have a larger AR (eg .52). this means that to produce 10 psi at the manifold, the shaft does not have to be spun as hard and could maybe produce the same psi at only 120,000rpm. this is because it is larger, has larger opening and larger turbine blades to flow more air in and out. so if both the stock turbo and the turbo from the VG30DET were to have a SHAFT speed of 150,000rpm on the same engine, the standard would produce 10spi at the manifold and the other would produce maybe 13psi. NOTE::: the figures I have used here are only examples.. I just used any old number that came to my head to get my point across. main points.. psi is measured at the manifold. a larger turbo can produce that same psi while working less due to it's ability to flow more air. Well it makes sense to me so I hope it does to you guys too. Giddyup...!!

I haven't increased the boost and I still have the standard exhaust on so there has not been much difference except for a slightly different sound due to the extra piping... But when the other night, when I parked at my girlfriends house after driving, i grabed the inlet pipe and it was warm as expected, but the other side was a lot cooler than I thought... It's obviously doing it's job.. and now that the spot lights are gone, I've got all that room for a nice cold air duct to my pod filter which at the moment feels constant summer conditions.. time to chill the bastard.. I believe the cooler is a cut down truck cooler, but it's good enough for me cause I know what I want out of the car and that will be enough..

here we go..

After!!! spot the difference.

Hey people. Just got my intercooler fitted and thought I'd show you guys to get some feed back or answer any questions.. I've got a few other pics on my website, but here is a couple of before and afters... Before!!!!

I don't have the writen proof but I can see why people say that there will be more lag. Think about it.. You hit the throttle, the turbo screams as it spins to like 150,000rpm, forcing all this air through. All of a sudden, you back off or change gears, your foot comes off the throttle, the throttle butterfly slams shut, the air that is currently in the pipes smashes against the throttle butterfly, has no where to go but back. The air gets forced back throught the spining turbo blades which are designed to really suck the air inwards and not have it go the other way, but the air gets through causing the fluttering sound. So because it forces it's way through the turbo blades, this causes the blades to slow down heaps to get all the air out. WITH a BOV.. same at the begining.. the turbo screams sucking the air in. you change gears or back off, the butterfly closes, the air hits it, goes to turn back around and because the manifold in your car has vacuum, it makes your BOV open up and all the air goes screaming out of there going pppsshhhhhh. Now because the air didn't go back to your turbo blade to slow it down, when you sellect the next gear, the turbo hasn't slowed down as much as it would with the air being forced back through it, and therefore, picks up boost quicker.. You have to realise that when changing gears, all of this happens like in a fraction of a second.. The standard BOV on the skylines or any car really, releases the air back to the inlet, AFTER the turbo.. so basically, it gets re-circulated and dumped in between the air filter and the turbo make sense?

By the way.. One of my previous cars was a 1987 4wd Ford laser Tx3. It was an EX-RALLY car. The BOV was taken out and the wholes blocked off. It was running 15psi boost with no BOV and all the air would go back through the turbo and you could hear this thing flutter through the air filter.. My point is that I had no problems with the turbo on that car.. There were hundreds of other issues but not Turbo. I am not recommending you go out and take your BOV off.. Just sharing some experience.

I can answer this.. The flutter is not coming from the valve.. I have a R32 GTST (as in the picture) It has a SARD R2D2 racing BOV. I also have a pod filte.. No other mods. The BOV makes a normal PSSHHHHH sound. If I am driving along and say in 3rd gear I put my foot down and the boost goes up to 7 psi and I back off but not right off the throttle, I get a light fluttering sound... this is because the throttle partially closes the butterfly valve and the compressed air turns back and goes back through the intercooler and through the turbo blades.. causing a sound that sounds like you are blowing air on to a fan.. like a frrrr sort of sound.. On tuesday I got a FRONT mount intercooler put on. This cooler is about 3 times the size of the standard unit and because it is front mounted and the inlet and outlet are on either side of the intercooler, there is haeps of extra piping. Now. When driving in the same situation as above.. 3rd gear and getting to about 7 or whatever psi then backing off partially, the fluttering noise that is caused by the bov not opening is excellent. it is much louder and sounds sort of like ssssch ch ch ch ch.. If I back right off the throttle i still get the normal psshhh sound. The BOV I have works perfectly and I doubt that I am causing any damage because it only hapens at like 5 psi or whatever.. The reason this gets louder with the front mount is because there is extra piping to be filled with air and at standard boost, with the new longer pipes, there is less pressure in there and so the BOV does not open as easy as it used to.. But like I said, it will open and give a psshh sound if I drive normally and change gears.. even at like 2 psi.. I hope this explains it. If anyone wants a presentation, just ask.. I'll take you for a quick spin.

Does anyone know the size of these coolers? width x height x depth thanks in advance.

Yes.. the BOV sound will be louder when you release at higher boost. Just say you plant your foot and you see full boost by 3000rpm.. if you shift gears, the sound will be the loudest that you will get. At higher RPM, even on same full boost, the sound is less..

How much are they lower than original?

thanks anyway.

SAME HERE!!!! Intercooler pipe... What do you want for it. I'm in sydney, will you COD?