Damage Engine If Use Silencer?

[Nosure]

  TiTAN said:

his exhaust is custom made, not an off the shelf item.

OK, got it.

I still like some jap brand.

Im looking for HKS SUPER TURBO MUFFLER, but no single one in Au.

[R31Nismoid]

Ye, mine is hand made, mufflers and all - super custom...

Either way forget the 3" people... he needs 3.5-4" given the power/turbo's he has.

Just go down to any reputable exhaust place near you... or whoever put your car together (im sure they know someone).

Tell them quite simply that you want:

- 3.5" or 4" exhaust

- Twin mufflers.

- Mufflers must be straight through, and must be as big as can possibly fit.

- No big cannon tips. If the rear muffler is 3.5", 3.5" tip etc.

You'll then have a much quieter exhaust than you do now - for about the same cost once you sell off the old exhaust.

There is no issue using restrictors, just control your right foot. It's really not that hard.

I drove around with a restrictor in for 8 months, never took the car past 50% throttle and 3500rpm.

[Nosure]

  R31Nismoid said:

Ye, mine is hand made, mufflers and all - super custom...

Either way forget the 3" people... he needs 3.5-4" given the power/turbo's he has.

Just go down to any reputable exhaust place near you... or whoever put your car together (im sure they know someone).

Tell them quite simply that you want:

- 3.5" or 4" exhaust

- Twin mufflers.

- Mufflers must be straight through, and must be as big as can possibly fit.

- No big cannon tips. If the rear muffler is 3.5", 3.5" tip etc.

You'll then have a much quieter exhaust than you do now - for about the same cost once you sell off the old exhaust.

There is no issue using restrictors, just control your right foot. It's really not that hard.

I drove around with a restrictor in for 8 months, never took the car past 50% throttle and 3500rpm.

thank you mate.

I know I can't control my foot, its hard for me sometime:) I think I better leave the silencer, I don't want make any damage.

do you know HKS SUPER TURBO MUFFLER? on HKS website they rate it 600hp. because I will keep small twin turbo setup forever, so no way pass 600hp.

if this catback not suit for me, I will find some good exhaust shop to made one.

[GDZ-14R]

The theory of "blocking your nose and see how hard you can blow" may not apply to an exhaust silencer

I ran one for like a year on my old S15 that was fairly modified, caned it senseless on a daily basis and it did no damage.

No your dilemma though. I got a 3" Nismo catback on mine, sooo quiet at lower revs, but may need to to go 3.5" and i still want quiet..

[STATUS]

  Nosure said:

Hi everyone, i have full exhaust system, HKS dump and front pipe, trust 94mm catback, it is just too loud for everyday drive. my car made 340KW on 1.45bar, 280KW on 1bar, if I use silencer and low boost, drive it hard, will it damage the engine (maybe too much back pressure)?? i can hear the noise of air resistance when full boost (1bar) over 5k or 6k rpm.

I tried many exhaust shop, only 2 option to quiet my exhaust: 1 is change a small system, 2 is put the silencer in.

anyone give some idea??? i don't want damage the engine by using a silencer:(

thanks!

100% will damage it. if you drive it hard.

[R31Nismoid]

There is no way a 350rwkw GTR is going to take at all well to a 1.5-2" silencer hole unfortunately.

[Nosure]

  STATUS said:

100% will damage it. if you drive it hard.

I understand it will damage if drive it very hard. but i mean foot down occasionally and on low boost which is about 14psi. not like drag race, or quick ran on mountain.

but anywhy i need a new system:)

[gtrr34owna]

My 2c, if your on a budget and cant replace exhaust at moment, get the apexi ecv but with 95mm internal diameter. its not the flange type, its the pipe one. My car makes over 600rwkw and the thing hasnt broken yet and it does make a difference. \

[joeyjoejoejuniorshabadoo]

just stick your blouse in it....

[Rav3nNZ]

  gtrr34owna said:

My 2c, if your on a budget and cant replace exhaust at moment, get the apexi ecv but with 95mm internal diameter. its not the flange type, its the pipe one. My car makes over 600rwkw and the thing hasnt broken yet and it does make a difference. \

Over 600Rwkw?!!!!!! got any pics??? i wanna see this beast mate!

[Nosure]

  gtrr34owna said:

My 2c, if your on a budget and cant replace exhaust at moment, get the apexi ecv but with 95mm internal diameter. its not the flange type, its the pipe one. My car makes over 600rwkw and the thing hasnt broken yet and it does make a difference. \

mate you have 600rwkw with a ecv? how big your pipe is?

can you go full throttle with ecv??

Edited April 1, 2010 by Nosure

[Guilt-Toy]

have you guys actually tried to hit boost with a big turbocharger and a restricted exhaust?

The turbo wont even spool up when i had my exhaust restricted. Not sure about other cars though

[Nosure]

  Guilt-Toy said:

have you guys actually tried to hit boost with a big turbocharger and a restricted exhaust?

The turbo wont even spool up when i had my exhaust restricted. Not sure about other cars though

yes mate, that what I thought. but my car is easy go up tp 14psi with a silencer. I never tried 20psi.

PS: my turbo is not that big:) only 2 baby t517z

Edited April 2, 2010 by Nosure

[Nosure]

  gtrr34owna said:

My 2c, if your on a budget and cant replace exhaust at moment, get the apexi ecv but with 95mm internal diameter. its not the flange type, its the pipe one. My car makes over 600rwkw and the thing hasnt broken yet and it does make a difference. \

I just bought a apexi ecv 95mm pipe type.

hope this will work, and no resistance when its open.

[aerofocker]

  Guilt-Toy said:

have you guys actually tried to hit boost with a big turbocharger and a restricted exhaust?

The turbo wont even spool up when i had my exhaust restricted. Not sure about other cars though

thank god at last sombody not just talking shit on the internet! another clasic full of shit thread thanks lads! i agree with guilt toy by the way,unless its like a 1 inch exhaust you may meld somthing due to heat restriction!

Edited April 8, 2010 by aerofocker

[R31Nismoid]

So apart from an uneducated OP (who is now educated), where is the "full of shit" in this thread?

[Nosure]

  Guilt-Toy said:

have you guys actually tried to hit boost with a big turbocharger and a restricted exhaust?

The turbo wont even spool up when i had my exhaust restricted. Not sure about other cars though

maybe you got a external wastegate??

i think the actuator type's turbo will still spool up fine with restricted exhaust.

Edited April 8, 2010 by Nosure

[R31Nismoid]

no they don't.

[aerofocker]

If you put a silencer in, you are effectively making the exhaust what, 2" maybe less? (depending on outlet size).

If you then intend to even ATTEMPT to put your foot down you are going to do some severe overall damage without question.

That much backpressure with turbo's that flow that much is never going to end pretty

tell me about this severe overall damage? the car will be laggy and lose loads of power all over the range and retain heat in the general exhaust area fair enough.

I want to know what dammage you speak of?

[R31Nismoid]

You don't just get heat in the exhaust area, there will be excessive heat everywhere...

Try it and see, you can cook the motor. There will be heaps of extra heat in the head, warped head? blown head gaskets? valve issues?

Hell get it too hot and then you can also cause detonation and we all know what happens next.

Your turn.