1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

MPG of 1/2 bridgeport...

Thread Tools
 
Search this Thread
 
Old Feb 23, 2006 | 12:59 PM
  #1  
skizzle84's Avatar
Thread Starter
Rotary Enthusiast
Tenured Member 05 Years
 
Joined: Aug 2005
Posts: 954
Likes: 0
From: Richmond, Virginia
MPG of 1/2 bridgeport...

yup, searched and found nothin, what can I expect MPG for a 12a 1/2 bridgeported, RB exhaust, RB intake system and modified holley?
Thanks
Reply
Old Feb 23, 2006 | 01:03 PM
  #2  
Septembers's Avatar
Junior Member
Tenured Member 05 Years
 
Joined: Feb 2005
Posts: 43
Likes: 0
From: Louisville, Ky
REALLY low.
Reply
Old Feb 23, 2006 | 01:33 PM
  #3  
Alex-7's Avatar
Rotary Freak
Tenured Member 15 Years
 
Joined: Dec 2003
Posts: 2,117
Likes: 2
From: Waukesha Wisconsin
You should get the idea of decent milage out of your head before even thinking about building a quick NA rotary.

Tuned well you MIGHT pull low teens on the highway.

My street port (very poorly tuned and driven hard) get almost unbelivably bad milage.
Reply
Old Feb 23, 2006 | 02:42 PM
  #4  
PaulFitzwarryne's Avatar
Apprentice Guru
Tenured Member 05 Years
 
Joined: Oct 2001
Posts: 1,425
Likes: 0
From: Cloud Nine and Peak of God
Round town you will get 8-10mpg if you drive conservatively.

On the highway its really ecomomic, around 12mpg is typical.

As for on the track, why worry if you get 4-5mpg while having fun.
Reply
Old Feb 23, 2006 | 03:22 PM
  #5  
WackyRotary's Avatar
standard combustion
Tenured Member 15 Years
 
Joined: Dec 2001
Posts: 1,374
Likes: 0
From: Twin Cities Minnesota
Really? I used to get 12-14mpg normal driving for a full bridge(but not cut into water jacket). And for a long drive(as annoying as that was to drivewith the uneven engine running at part throttle) I got as high as 19mpg. 50dco weber-long tube header and medium flow muffler. Bridgeports should only be used for track use and weekend warrior driving because of the noise IMO
Reply
Old Feb 23, 2006 | 03:31 PM
  #6  
trochoid's Avatar
Old Fart Young at Heart
Tenured Member 10 Years
iTrader: (6)
 
Joined: Apr 2004
Posts: 15,145
Likes: 8
From: St Joe MO
I get anywhere from 9 around town in cold weather to 22 on the interstate at the speed limit, steady cruising. 1/2 bp-1/2sp, with a Mikuni. The highway mileage was driving from fill station to fill station, no stops in between, so that's probably the best it's gonna get.
Reply
Old Feb 23, 2006 | 03:40 PM
  #7  
Hyper4mance2k's Avatar
The Shadetree Project
Tenured Member 20 Years
iTrader: (40)
 
Joined: Jul 2002
Posts: 7,301
Likes: 3
From: District of Columbia
Originally Posted by WackyRotary
Really? I used to get 12-14mpg normal driving for a full bridge(but not cut into water jacket). And for a long drive(as annoying as that was to drivewith the uneven engine running at part throttle) I got as high as 19mpg. 50dco weber-long tube header and medium flow muffler. Bridgeports should only be used for track use and weekend warrior driving because of the noise IMO
The louder the better you wimp... J/k I drove around with just my header for 2-3 weeks once just for fun. never got pulled over just throttle down when you see a cop.
Reply
Old Feb 23, 2006 | 04:03 PM
  #8  
WackyRotary's Avatar
standard combustion
Tenured Member 15 Years
 
Joined: Dec 2001
Posts: 1,374
Likes: 0
From: Twin Cities Minnesota
Originally Posted by Hyper4mance2k
The louder the better you wimp... J/k I drove around with just my header for 2-3 weeks once just for fun. never got pulled over just throttle down when you see a cop.

Whatever. I don't mind the noise at all, but the neighborhood I live in now, it would be too cop magnetic. I went to a steetport blowthrough turbo and now I have more power and less noise- win win!
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
LongDuck
1st Generation Specific (1979-1985)
12
Oct 7, 2015 08:12 PM
meximan
2nd Generation Non-Technical and pictures
2
Sep 22, 2015 05:21 PM




All times are GMT -5. The time now is 12:23 AM.