I8A4RE Turbo thread: Questions and Comments

yano · Post by **yano** » Sun Jan 25, 2009 8:21 pm

AMACHA wrote: and the intercooler at the front makes me want to f*** your cars brains out

Join the list...

Oh and tippin9, the number plates not sitting at all

Post by **I8A4RE** » Sun Jan 25, 2009 9:41 pm

yano28 wrote:
AMACHA wrote: and the intercooler at the front makes me want to f*** your cars brains out
Join the list...

Oh and tippin9, the number plates not sitting at all

bahahaha, yeah i havent exactly had my number plate on. But i will be getting one shortly, i lost the last one

AMACHA · Post by **AMACHA** » Tue Jan 27, 2009 12:24 am

I8A4RE wrote:
Delvance wrote:If you want big power with forced induction, you need a decomp gasket dude. Be tight now and pay LOTS more later.

Just look at most of jap performance turbo from factory cars and pay attention to their comp ratio. It's lower than hi output and/a setups. You're gonna get some serious knocking if you run the normal comp ratio and put big boost in and we all know what knocking leads to (just look at sam's engine block pic).
Yeah i know that compression is important for turboes cars, but please remember im not going for BIG POWER, just a kick in the pants if you know what i mean.

Hey simon what exatly makes that dosing noise like that stu tu tu tu noise?is it a BOV?i didnt think it is cus they make noises like pshhht

nvr2low · Post by **nvr2low** » Tue Jan 27, 2009 12:32 am

hey man it depends on a lot of things buddy. You can actuallly buy blow off valves these days that do make the psshht noise eg. hks ssqv does this and also so does the greddy type r. when you change gears softly like not giving it to it they psssssshtt or dose but when u are racing they make a quick pshht.

AMACHA · Post by **AMACHA** » Tue Jan 27, 2009 12:59 am

nvr2low wrote:hey man it depends on a lot of things buddy. You can actuallly buy blow off valves these days that do make the psshht noise eg. hks ssqv does this and also so does the greddy type are. when you change gears softly like not giving it to it they psssssshtt or dose but when you are racing they make a quick pshht.

Hmmm ok but my mate had a s15silva with 12psi boost and when he was reving it while he was pulling in it was oging stu tu tu tuo not that pshht noise hmmmm

nvr2low · Post by **nvr2low** » Tue Jan 27, 2009 1:18 am

i took my mates r33 for a drive the night and he has the most insane turbo flutter under normal driving , i was in heaven all night driving it. If i am correct their is turbo flutter and dosing. Dosing is bad for your turbos abd turbo flutter is a noise the bov makes whichs flutters the sounds and the noise goes a little longer.

TopCat · Post by **TopCat** » Tue Jan 27, 2009 4:03 am

Congrats on the build Simon, looks like a very tidy job and really finishes the car off.
F*** me I want one...

Post by **Bennoz** » Tue Jan 27, 2009 8:25 am

I8A4RE wrote:As requested:

Nicely done!

Gotta love the consistent & easy non mivec curve.

Post by **I8A4RE** » Tue Jan 27, 2009 8:36 am

Cheers ben, she is a real pleasure to drive. I wish i could see your face when you take your monster for its first drive

Amacha, sorry man i have no idea what the hell your talking about. Are you talking about a noise that occurs when accelerating or on decel?

Post by **I8A4RE** » Tue Jan 27, 2009 11:00 am

TopCat wrote:Congrats on the build Simon, looks like a very tidy job and really finishes the car off.
F*** me I want one...

Thanks mate, if you were here i would take you for a drive.....then you would reallllyy want one

AMACHA · Post by **AMACHA** » Tue Jan 27, 2009 11:13 am

honestly simon top work i was reaidng htorugh this thread you have done some great work...

Im after this noise

http://au.youtube.com/watch?v=lbU7C0VDk ... re=related

Tippin · Post by **Tippin** » Tue Jan 27, 2009 11:27 am

i think he means this noise, i love it as well

http://au.youtube.com/watch?v=8PvFlZumv ... re=related

also i found this bit of info on nissansilvia.com for you, it can probably describe it better for you than i can

The "chopping" or "fluttering" sound is caused by the accoustic effects in the intake system, determined by the size and length of the piping / cooler.
Rather than air constantly flowing back out of the turbo it tends to come out in bursts, triggered by pressure waves in the piping hitting the compressor.

Generally though the flutter is the sound of the pressure wave cause by the throttle closing bouncing back and forth between the turbo and the throttle plate (the longer the pipes the slower the flutter).
Every time the wave hits the turbo it causes the compressor to cavitate, which makes the noise.

It's not the blades chopping the air making the flutter. Since the blades are spinning at 80000+rpm you wouldn't be able to hear the individual "chops"

If you listen closely you'll actually hear a more constant hiss sound at higher boost levels and rpm when backing off. (ie, a "whooosh" rather than a "chop chop chop")

The loudest flutter tends to occur at lower rpm and boost levels of only slightly above atmospheric pressure (0psi). This is partly because the sound is "chopped" up more noticeably, and partly because the rest of the car is making less noise at lower speeds. This is also where it's least damaging.

Post by **Bennoz** » Tue Jan 27, 2009 11:33 am

lol

Im putting the quietest one I can find on mine... the last thing I want is every dickhead with a 27" cannon muffler & chrome wheels wanting to take me on at the lights cause they heard "Whoop-ish" or any uneccessary attention from the police.

Post by **I8A4RE** » Tue Jan 27, 2009 11:37 am

Mate, that noise is pressurised air being fed back the through the turbo. This has been known to bend the blades of the turbo. Now, it is debatable whether this is good or bad for the turbo and with my limited knowledge i would not know. However, i would not risk it as turbo's are too expensive for me to have to change on regular basis.

They would achieve this by either not having a BOV or disconnecting it. You would have to speak to your tuner about that.

In saying that, the sound my BOV makes, is all the noise i need. It sounds wicked.

Post by **I8A4RE** » Tue Jan 27, 2009 11:48 am

sorry on just saw tippin's msg then. It could be that either

Tippin · Post by **Tippin** » Tue Jan 27, 2009 1:39 pm

Ed_EViL wrote:that's almost sexier the Mizzfto!

what!!! almost .... ???

maybe your appreciation for fto turbo setups is not as extensive as mine lol

no offence mizzfto haha

Tippin · Post by **Tippin** » Tue Jan 27, 2009 1:41 pm

wtf, where did his post go ???

Ed_EViL · Post by **Ed_EViL** » Tue Jan 27, 2009 2:41 pm

i deleted it cos of the spelling

plus it probably wasn't the best statement..
it is sexier!!

Tippin · Post by **Tippin** » Tue Jan 27, 2009 5:39 pm

ahh kk hehe

quick question, if you get rid of the aircon unit and pipes then you should be able to run the left intercooler piping up and across the front of the rocker cover, correct?

Post by **I8A4RE** » Tue Jan 27, 2009 6:08 pm

Yes but why would yo want to loose your a/c? Also by having the piping coming from that side you will have more piping. more piping = more expense