1st Gen General Discussion The place for non-technical discussion about 1st Gen RX-7s or if there's no better place for your topic

Let's talk exhaust systems..

Old Jan 1, 2018 | 04:26 PM
  #26  
chainreaction's Avatar
Full Member
Tenured Member 05 Years
 
Joined: Apr 2011
Posts: 113
Likes: 1
From: Maine
When I was running a stock port 12a, I built my first exhaust system with 2 1/2" sprinkler pipe with a 3" chrome exhaust tip on it. It was an 18" long straight pipe system. BTW I race a sand rail with the motor mounted sideways with a snowmobile clutch drive. We had a combo-port motor built (full bridge-port with full peripheral port but never got around to debugging it yet) Built a 30" header system that flared out to take a 3" cherry bomb on the end to try to quiet it down. Current motor is a full Bridgeport 12a, Header is built with 2 1/4" pipe. I have a pair of cherry bomb cored welded onto the tips with a chrome tip on each to sort-of quiet it down. I launch at 5800 rpm's and twist it to 11,800 rpm's.
Reply
Old Jan 1, 2018 | 04:43 PM
  #27  
Mathius's Avatar
Thread Starter
Full Member
 
Joined: Sep 2016
Posts: 135
Likes: 6
From: Alberta
Originally Posted by chainreaction
When I was running a stock port 12a, I built my first exhaust system with 2 1/2" sprinkler pipe with a 3" chrome exhaust tip on it. It was an 18" long straight pipe system. BTW I race a sand rail with the motor mounted sideways with a snowmobile clutch drive. We had a combo-port motor built (full bridge-port with full peripheral port but never got around to debugging it yet) Built a 30" header system that flared out to take a 3" cherry bomb on the end to try to quiet it down. Current motor is a full Bridgeport 12a, Header is built with 2 1/4" pipe. I have a pair of cherry bomb cored welded onto the tips with a chrome tip on each to sort-of quiet it down. I launch at 5800 rpm's and twist it to 11,800 rpm's.
That sounds like a badass build! I like the centrifugal clutch idea.
I'm still not to sure exactly how I'm gonna do it all yet, as far as my exhaust goes?
But I want to save weight, so I probably won't get to crazy.
Reply
Old Jan 1, 2018 | 04:46 PM
  #28  
chainreaction's Avatar
Full Member
Tenured Member 05 Years
 
Joined: Apr 2011
Posts: 113
Likes: 1
From: Maine

Last edited by chainreaction; Jan 1, 2018 at 04:56 PM.
Reply
Old Jan 1, 2018 | 04:48 PM
  #29  
chainreaction's Avatar
Full Member
Tenured Member 05 Years
 
Joined: Apr 2011
Posts: 113
Likes: 1
From: Maine
Reply
Old Jan 1, 2018 | 04:55 PM
  #30  
chainreaction's Avatar
Full Member
Tenured Member 05 Years
 
Joined: Apr 2011
Posts: 113
Likes: 1
From: Maine
Reply
Old Jan 1, 2018 | 07:35 PM
  #31  
Mathius's Avatar
Thread Starter
Full Member
 
Joined: Sep 2016
Posts: 135
Likes: 6
From: Alberta
COOOOL!!!!
Reply
Old Jan 1, 2018 | 07:50 PM
  #32  
Qingdao's Avatar
HeyHeyHey..Its the Goose
Tenured Member: 10 Years
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Apr 2012
Posts: 3,042
Likes: 213
From: Charleston
Good god that's a lot of intake!
Reply


Thread Tools
Search this Thread

All times are GMT -5. The time now is 01:24 PM.