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Exhaust Advice - R32 Gtr - Twins

sultanaz

By sultanaz,
in Engines & Forced Induction

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discoPumpkin Community Regular

discoPumpkin

Posted
Posted

Sigh. Ok discodickhead. Please go search a little subject involving pressure difference between exhaust manifold and inlet manifold. Then, after you get your puny brain around that, search the next subject. Exhaust scavenge, velocity and pressure balance vs flow dynamic properties of hot gas. There is a reason the most obvious of all machines, trucks, use large bore exhausts that are short, smooth and free flowing. I know that in most cases, the turbocharger is designed specifically for a particular engine capacity and configuration as not having a responsive boost control method on the exhaust housing may blow your mind, but the theory is exactly the same. The pressure difference between the inlet and exhaust manifolds need to be different, the less pressure in the exhaust manifold, the faster the turbocharger can compress, therefore fill the cylinder and in turn, increasing performance and most importantly, response. The more air you can get in, the more air you can burn and get out. Next subject will really rattle you. Volumetric efficiency. Actually, fcuk it. Your a deadset spastic. Just google shart. That's about what your good for.

What an absolute moron, I mean you've had 7 years to research all of this stuff and has it payed dividends do u think... Are u an engineer yet or hell even a mechanic, what r u still doing on an open forum then if u claim to bean expert? U can research all u want doesn't mean theory its gona translate into real life scenarios, but good on u Allan for trying, it helps with your autism. This is my scientific explanation, hope u can understand all the algebra etc...

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r32-25t
r32-25t

He makes 475kw out of low mount turbos and makes power pretty much from idle, so I think he has a bit of an idea about an exhaust that works!

gtr jet
gtr jet

I wish I made the power as easy as you Sinista. I'm running -7's on E85. 325rwkw @ 20psi. HKS dumps, unknown front pipe, 3" 100 cell cat and 3" cat back. I'm still running standard actuators though

SiR_RB
SiR_RB

2.5" front pipes and 3" cat back is fine !

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sydking Veteran

sydking

Posted
Posted

my set up is - R34 dumps, Nismo Front pipes backed onto a 3.5 mild steel exhaust with a single hooker muffler

Only thing i will be adding is a hi flow cat 100 cell - The in cabin fumes from the de cat are quite unbearable...

Piggaz Grand Master

Piggaz

Posted
Posted

my set up is - R34 dumps, Nismo Front pipes backed onto a 3.5 mild steel exhaust with a single hooker muffler

Only thing i will be adding is a hi flow cat 100 cell - The in cabin fumes from the de cat are quite unbearable...

Must not be driving fast enough :P
33GTRV Mentor

33GTRV

Posted
Posted

I don't claim to be an expert. Actually, I don't claim anything. I just make funny cast iron and aluminium components go bang bang bang really really fast and make some funny number when I attach them to the funny wires and computers and stuff. I do it all with a ball point pen taped to the side of it.

Please for the love of god, someone invent a way for me to backhand through the interwebs so I can get this kid back to doing dishes and taking rubbish out for his parents.

sydking Veteran

sydking

Posted
Posted

Must not be driving fast enough :P

haha is a strong smell the norm? Seriously smells like i spat out a litre of V power into the back seat to soak in.. that Hole in the bottom of the R33 boot (unsure on others) does not help...... Need to bung that up

Piggaz Grand Master

Piggaz

Posted
Posted

haha is a strong smell the norm? Seriously smells like i spat out a litre of V power into the back seat to soak in.. that Hole in the bottom of the R33 boot (unsure on others) does not help...... Need to bung that up

Dunno man. I have no problems inside the cabin. Only smell is from the arse end when outside.
R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Sigh. Ok discodickhead. Please go search a little subject involving pressure difference between exhaust manifold and inlet manifold. Then, after you get your puny brain around that, search the next subject. Exhaust scavenge, velocity and pressure balance vs flow dynamic properties of hot gas. There is a reason the most obvious of all machines, trucks, use large bore exhausts that are short, smooth and free flowing. I know that in most cases, the turbocharger is designed specifically for a particular engine capacity and configuration as not having a responsive boost control method on the exhaust housing may blow your mind, but the theory is exactly the same. The pressure difference between the inlet and exhaust manifolds need to be different, the less pressure in the exhaust manifold, the faster the turbocharger can compress, therefore fill the cylinder and in turn, increasing performance and most importantly, response. The more air you can get in, the more air you can burn and get out. Next subject will really rattle you. Volumetric efficiency. Actually, fcuk it. Your a deadset spastic. Just google shart. That's about what your good for.

How dare you bring logic into this discussion you heathen!

sultanaz Proficient

sultanaz

Posted
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Posted

Is this guy 4 real? So why u don't have a 6 inch exhaust then? that's the million dollar question on everyones mind because according to your theory absolutely no backpressure is the key to HP and at the same time you don't loose any response, omg omg, I'm calling my tuner tomorrow to get him to put the worlds biggest exhaust on.

So tell me then whats stopped u then I wonder from putting on a 6 inch exhaust like u say considering how much extra hp you'll gain from all this "no backpressure" wizardry

But instead you'll be spending thousands on cam shafts, cam gears, springs and headgasket for your "weekend GTR"- ok cool. Might I ask how many km's this 20 year old beast has accumulated?

Its not that bad. and my weekend gtr is my fun car.. I take it on the track / drags too... and i've driven 12000kms in less then a year in my weekend car FYI.

Just to proove how far i drive kinda thing lol.

75000kms roughly but u no what imports are like... It is quite immac though... Genuine paint/ great interior.. Who knows.

discoPumpkin Community Regular

discoPumpkin

Posted
Posted

It's only one person who has turned this to shit.

There are reasons you don't go so big of an exhaust discoprincess...

OMG r u 4 real PLS GO!! THATS THE VERY THING I WAS DISPUTING U IDIOT, I WAS THE ONE SAYING THE BIGGER U GO THE WORSE OF IT IS WHEN IT GETSTO BIG, LEARN TO READ, GO BACK TO THE NA forum where ya belong babes xo

To op goodluck with the build, let us know how it comes along

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