90 fc exhaust
#1
Full Member
Thread Starter
Join Date: Feb 2010
Location: new jersey
Posts: 123
Likes: 0
Received 0 Likes
on
0 Posts
90 fc exhaust
got a 90 gtu, and i plan on doin a full exhaust, but im curious will it lose low end from having less backpressure and how much can i expext to gain from a full exhaust eliminating precats and using high flow cat. im new to peformance with a rotary i was a honda guy for a while, any info please!!
#2
Engine, Not Motor
iTrader: (1)
Join Date: Feb 2001
Location: London, Ontario, Canada
Posts: 29,789
Likes: 0
Received 108 Likes
on
91 Posts
With your 90 GTU, you are free to run any kind of exhaust you wish as long as you keep the airpump. This means a good header, high flow cat, and whatever cat-back you will enjoy.
Only S4s rely on exhaust pressure to operate the aux ports, you S5 uses the air pump. So the car will make the most power when all exhaust restriction (backpressure) is removed.
Only S4s rely on exhaust pressure to operate the aux ports, you S5 uses the air pump. So the car will make the most power when all exhaust restriction (backpressure) is removed.
#6
Top Down, Boost Up
iTrader: (7)
Slight power difference between straight pipe, presilencers and high flow cats. Whether anyone has dyno'd all 3 on the same car is doubtful, but it's not going to be huge. The biggest difference will be noise. A header + straight pipe is deafening, a cat will do the most noise control, and a presilencer will be the middle ground.
Thread
Thread Starter
Forum
Replies
Last Post