FC loss of HP with new exhaust

[Cobra_R]

I heard that installing a new exhaust system on an FC will cause a loss of like 30 HP, is this true? Why does it do that?

[Feint]

Originally posted by Cobra_R
I heard that installing a new exhaust system on an FC will cause a loss of like 30 HP, is this true? Why does it do that?

30hp loss? You know that sounds ridiculous.Just think about it,30hp loss fron an exhuast system,that's a lot of hp lost for letting your engine breathe better.Let's say were talking about a T2.If you stuck on a down-pipe,mid-pipe,and a cat-back system,you'd get nothing but horsepower gains(you'd probably have to upgrade the stock wastegate,and re-map the fuel for sure),but you'd gain power from it nonetheless.

[SDRotary]

more like a gain of 30hp , that is what i got with headers to a apexi n1 on my n/a

[driftfreak]

if its a S4 thats normal
the S4's 5/6 port are operated from the back pressure of the exahust so when you get a freeer flowing exahust the 5/6 port wont open and bam less HP...just use zip ties to hole them open all the time...easy

[Cobra_R]

sounds easy enough, but do you know of any exhaust systems that counter this problem or are all the FC systems the same in that regard.

[hachiroku-fc3s]

Counter the problem?? Well if you want an exhaust with backpressure, keep your stock exhaust. It is the goal of the aftermarket to make exhausts that are freer flowing. That means, less backpressure.

[theflatlander]

or you can do what i did and remove the port sleeves. but that requires taking off the intake manifold.

[twcfc3s]

no tiene sentido men... logico que si tu motor respira mejor corre mejor menos trabajo para sacar el aire...

[twcfc3s]

i know that you dont understand but i didnt find tha inglish words... hahahahhaahhaa da!!

[nissanguy_24]

Originally posted by SDRotary
more like a gain of 30hp , that is what i got with headers to a apexi n1 on my n/a

God i love rotarys.. man they love to breath try that with any piston engine of resonable size, hell try getting 30 hp with exhaust mods on a small NA honda.. your exhaust mod better include a turbo.

[hachiroku-fc3s]

Originally posted by twcfc3s
... logico que si tu motor respira mejor corre mejor menos trabajo...

exactamundo

[ProjectD]

racing beta exhaust system with presilencer cats muffler, etc....15hp to the wheels.


i have straight piping on mine. thats gotta gain more hp, but no i didnt lose any power.

[twcfc3s]

hachi FC did you understand whut i said?? hahahaha weird sh!t right

[hachiroku-fc3s]

Yes I speak spanish and los padres de mi novia hablan solamente en espanol.

[twcfc3s]

oooh coool! haha alguien que habla español hahhaa milagro y mejor manejas el FC como yoo!!!

[hachiroku-fc3s]

Solamente un poquito pero si, tengo un FC.

[twcfc3s]

ooh ok no problemo i can talk inglish hahaha but sometimes i get desperated and start to talking spanish.... jajaja do you have pics of your FC??? and men if you can tell me where i can get tha wiring diagrams of tha 13BT S5 engine couse i wanna conect it my self haha thanx...
peace...

[hachiroku-fc3s]

Probablemente le puedo obtener ese esquema y necesito tocar algunos picturas de mi FC. Tengo ninguno ahora.

[twcfc3s]

ooh ok cuando tengas las fotos me las mandas y por lo de el diagrama no te preokupes cuando los consigas me dicess para verlos... gracias

[hachiroku-fc3s]

Bueno. Necesito escudriñar el esquema tan buscaré un escáner hoy.

[twcfc3s]

muchas gracias hachi estare esperando por el mail con el diagrama... gracias