FC Exhaust Question
#1
Can Post Only in New Member Section
Thread Starter
Join Date: Dec 2013
Location: New Jersey
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
FC Exhaust Question
I have a 13b engine in my FC, its the stock engine that comes in a 88 GXL. I was looking into changing my exhaust, i know right now it has a y pipe. id like to add on a x pipe or h pipe, so that i had true dual exhaust. Is the 13b too small for this kind of exhaust? or will it be better and give my car more hp/torque? also i plan on swapping in a 20b engine in the future and i want to use the same exhaust. Lastly, would i be able to change it to a x pipe/h pipe on my own, with the help of a buddy? Or would i have to take it to a shop, i am okay with putting in hours on the car.
#2
Retired Moderator, RIP
iTrader: (142)
Join Date: Sep 2005
Location: Smiths Falls.(near Ottawa!.Mapquest IT!)
Posts: 25,581
Likes: 0
Received 131 Likes
on
114 Posts
In the future ONE submission of a question is plenty.
Even if you altered that exhaust your modification would be Useless for the power of the 20b down the line.
You need to look at the diameter of what you want to use NOW rather than later in order to make your idea work.
Yes,sure,look at the Road race header and exhaust on Racingbeat.com..BUT if you go that route you are just going to alter the exhaust again later.
My suggestion is a REVII exhaust or a 3-4 inch single setup.Right now you would be good with 3 inch as it is a N/A and anything more is a waste and will not achieve any additional power to your car anyways.It will just make it plain Noisy.
By the way I hope you are Rich as a 20b setup is not Cheap and they are getting rare.Expect at least 6-8 k for a decent setup,minimum.That is just a half decent engine.
Even if you altered that exhaust your modification would be Useless for the power of the 20b down the line.
You need to look at the diameter of what you want to use NOW rather than later in order to make your idea work.
Yes,sure,look at the Road race header and exhaust on Racingbeat.com..BUT if you go that route you are just going to alter the exhaust again later.
My suggestion is a REVII exhaust or a 3-4 inch single setup.Right now you would be good with 3 inch as it is a N/A and anything more is a waste and will not achieve any additional power to your car anyways.It will just make it plain Noisy.
By the way I hope you are Rich as a 20b setup is not Cheap and they are getting rare.Expect at least 6-8 k for a decent setup,minimum.That is just a half decent engine.
#3
Junior Member
Join Date: Dec 2013
Location: knee deep in rotary
Posts: 21
Likes: 0
Received 0 Likes
on
0 Posts
An x or h pipe will do no good on a 2-rotor. The collector on the header does all the scavenging. Once that's done, a single tail pipe is the best you can do. Dual outlets are just for show. The highest HP rotaries that require a full exhaust are found in roadracing. They all have a header and then a single tailpipe all the way back.
#4
Full Member
iTrader: (2)
Join Date: Nov 2009
Location: va beach
Posts: 45
Likes: 0
Received 0 Likes
on
0 Posts
Yea I am running racing beat header test pipe and 3 inch m2 performance stainless single out on my full bridge gxl and I love everything about it sounds good backfires looks good and gave me a large amount of response from when I has my borla set up and the exhaust I have now is 200 bucks a d the borla was 1000 bucks so honestly the single is the way to go on a fc
#5
Rotorhead
Join Date: Feb 2001
Location: Charlottesville, Virginia, USA
Posts: 9,136
Likes: 0
Received 39 Likes
on
33 Posts
Rotary Tech Tips: Exhaust System Configurations
https://www.rx7club.com/2nd-generati...rtible-767071/
Hopefully it would be apparent that an exhaust system optimized for 150hp would not be the same as one for 300hp, but here are pictures to show why a 13B exhaust would not work on a 20B engine:
13B (2 engine outlets, smaller collector)
20B (3 engine outlets, bigger collector)
Thread
Thread Starter
Forum
Replies
Last Post
Skeese
Adaptronic Engine Mgmt - AUS
65
03-28-17 03:30 PM
msilvia
3rd Generation Specific (1993-2002)
28
04-14-16 12:58 PM
12abridgeport
1st Generation Specific (1979-1985)
2
08-17-15 06:28 PM