When is bigger not better
11-18-05, 08:16 AM
#1
Junior Member
Thread Starter
Join Date: Oct 2005
Location: Atlanta GA
Posts: 6
Likes: 0
Received 0 Likes
on
0 Posts
When is bigger not better
OK is bigger really better I am getting my custom exhaust done this weekend and I want 3' all the way 
But is that a little over kill what do you guys and Gals think ? What are the disadvantages and the advantages? Thxs
Trending Topics
11-18-05, 10:15 AM
#8
numba 1 stunna
Join Date: Dec 2002
Location: Crestline, Ohio
Posts: 359
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by tjgosurf
That 3' exhaust maybe overkill. I would try 3"
lmao such ****** these days... but yea u shouldnt go with 3 u should go 2 1/2 feet with 5 feet wide CHROME exhaust tips.. o yea
11-18-05, 11:07 AM
#10
resU deretsigeR
iTrader: (3)
Join Date: Aug 2005
Location: Yep
Posts: 681
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by MLC
Sorry its a 89 rx7 vert NA running about 50 shot of nos, custom cold air induction, and Jet V force computer
thxs
thxs
You're running "about" a 50 shot. Not really sure?
11-18-05, 12:02 PM
#11
Full Member
Join Date: Oct 2005
Location: The Sticks Maine
Posts: 120
Likes: 0
Received 0 Likes
on
0 Posts
2 1/2 inch should be good for up to about 325 horsepower. 3" would just be over killer and add extra weight. I am pretty sure a 3" is good for up to like 800-1000hp. I know some guys that tried a 4" exhaust but that was on a supra making like over 1200 hp. If you still want to brag about having a 3" exhaust start the system at 2 1/2 at the engine an expand as it goes back. Thats really how an exhaust system should be designed. Hot gasses dont need as large of pipes because they still have high pressure which leads to better flow. As the gas cools looses pressure and slows down it needs a bigger pipe to travel through.
11-18-05, 03:31 PM
#12
Full Member
Join Date: Mar 2005
Location: Tulsa, OK
Posts: 188
Likes: 0
Received 0 Likes
on
0 Posts
I would not put a 3" system on an N/A. That is good for a turbo because backpressure is created by the turbo, then the turbo needs to push the exhaust out as fast as possible.
A N/A engine needs some back pressure in the exhaust and a full 3" would not have enough restriction.
I am currently building a custom 2.5" single exhaust for mine and 2.5" is still very big for the displacement of our engines.
A N/A engine needs some back pressure in the exhaust and a full 3" would not have enough restriction.
I am currently building a custom 2.5" single exhaust for mine and 2.5" is still very big for the displacement of our engines.
11-18-05, 05:13 PM
#15
Squeak, Suicide Girls
Originally Posted by InGroundEffect
I would not put a 3" system on an N/A. That is good for a turbo because backpressure is created by the turbo, then the turbo needs to push the exhaust out as fast as possible.
A N/A engine needs some back pressure in the exhaust and a full 3" would not have enough restriction.
I am currently building a custom 2.5" single exhaust for mine and 2.5" is still very big for the displacement of our engines.
A N/A engine needs some back pressure in the exhaust and a full 3" would not have enough restriction.
I am currently building a custom 2.5" single exhaust for mine and 2.5" is still very big for the displacement of our engines.
Thread
Thread Starter
Forum
Replies
Last Post
ls1swap
3rd Generation Specific (1993-2002)
17
06-03-24 03:25 PM
pfsantos
2nd Generation Specific (1986-1992)
1
09-30-15 01:29 PM