na engine with 3" exhaust?

supraman121 · 01-06-2007, 07:40 PM

would a 3" exhaust increase or decrease the performance of my car? or will it just change around where i have the power? like more top end speed or more low end torqe?

mr.w · 01-06-2007, 08:04 PM

I'm not to sure but I think it would definatley ruin alot of your low end power and burn up your seals.

supraman121 · 01-06-2007, 08:11 PM

Quote:

Originally Posted by mr.w

I'm not to sure but I think it would definatley ruin alot of your low end power and burn up your seals.

What seals would it burn up? It just a exhaust i can see how it would mess with the power but seals?

mr.w · 01-06-2007, 08:19 PM

I could be wrong about the seals thing, it just could be a myth a heard. I do know that its not good to run the car without enough back pressure.

marc · 01-06-2007, 10:12 PM

it wont kill any power, it will be all performance. im almost 100% sure that the exhaust will only give u positive results. and theres no seals to brun either

supraman121 · 01-06-2007, 11:54 PM

Quote:

Originally Posted by marc

it wont kill any power, it will be all performance. im almost 100% sure that the exhaust will only give u positive results. and theres no seals to brun either

I have been told i will lose low end power cause of the increased exhaust, i mean they put 3" on turbos cause they have more back pressure which means they need a more open exhaust, i wish there were dyno test results or somthing lol if i get mine down i will dyno it before the exhaust and then after see what the results are

skunk · 01-07-2007, 04:44 PM

Quote:

Originally Posted by supraman121

What seals would it burn up? It just a exhaust i can see how it would mess with the power but seals?

The only possible damage it could do is (this is rare), when the outside tempeture is cold-- really cold-- the exaust pipe will build condensation. This can travel to your exaust valves. Then when you start the car ---WARP!

But a friend of mine has an N/A with three inch straight pipe and he loves it.
I would not worry about the bottem end power.

Also if you need back pressure and a bend at the end of the pipe when installing.

Supra2NR · 01-07-2007, 05:00 PM

Unless you plan to make a full360 bend at the end which I don't even think is gonna be enuff to recoup the loss power

But its been proven b4 the biggest you can go with a na without losing power
Is 2.5 with or without the cat

But is your car, if u want those badunkadunk exhaust systems for your na
Its your choice

mr.w · 01-07-2007, 01:24 AM

this might help http
http://www.nsxprime.com/FAQ/Miscella...austtheory.htm

sd88supra · 01-07-2007, 04:12 AM

2.5" is probably the biggest you can go on an n/a to get good results. 3" is way too free-flowing, and yes youll lose low end torque. check out the "Exhaust systems researched" thread in the FAQ.

01-06-2007, 07:40 PM	#1
supraman121 12psi boost Join Date: Aug 2006 Location: North Carolina Posts: 361	na engine with 3" exhaust? would a 3" exhaust increase or decrease the performance of my car? or will it just change around where i have the power? like more top end speed or more low end torqe? __________________ Upgrades- 225/50/R16's Kumho ECSTA AST (KU25) 273 bucks with shipping Magnaflow exhaust NO KAT K&N Air Filter www.myspace.com/coreyjstevens http://vids.myspace.com/index.cfm?fu...oid=1536317037 <------ this one should work check out the accident one aswell ya i might be a "fat kid" but i sure can move fast!~

01-06-2007, 10:12 PM	#5
marc 12psi boost Join Date: Jun 2006 Location: salem mass Posts: 329	it wont kill any power, it will be all performance. im almost 100% sure that the exhaust will only give u positive results. and theres no seals to brun either __________________ nothing but the best -mods- so far K&N intake fipk 3" megan downpipe 3"turbo elbow 4 washers on the wastegate highflow cat short shifter 89+ front bumper, pic soon to come many more upgrades soon

01-07-2007, 05:00 PM	#8
Supra2NR 1000whp postwhore Join Date: Apr 2006 Location: Chi-Town Posts: 1,643	Unless you plan to make a full360 bend at the end which I don't even think is gonna be enuff to recoup the loss power But its been proven b4 the biggest you can go with a na without losing power Is 2.5 with or without the cat But is your car, if u want those badunkadunk exhaust systems for your na Its your choice __________________ http://www.myspace.com/supra_2nr Into Bikes now,, apparently the supra couldnt kill me, so my zx6 might lol

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01-06-2007, 08:04 PM	#2
mr.w 3" Exhaust Join Date: Nov 2006 Location: Cleveland, Ohio Posts: 70	I'm not to sure but I think it would definatley ruin alot of your low end power and burn up your seals.

01-06-2007, 08:19 PM	#4
mr.w 3" Exhaust Join Date: Nov 2006 Location: Cleveland, Ohio Posts: 70	I could be wrong about the seals thing, it just could be a myth a heard. I do know that its not good to run the car without enough back pressure.

01-07-2007, 01:24 AM	#9
mr.w 3" Exhaust Join Date: Nov 2006 Location: Cleveland, Ohio Posts: 70	this might help http http://www.nsxprime.com/FAQ/Miscella...austtheory.htm

01-07-2007, 04:12 AM	#10
sd88supra 3" Exhaust Join Date: Oct 2005 Location: San Diego, Ca Posts: 190	2.5" is probably the biggest you can go on an n/a to get good results. 3" is way too free-flowing, and yes youll lose low end torque. check out the "Exhaust systems researched" thread in the FAQ.