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-   -   MPG of 1/2 bridgeport... (https://www.rx7club.com/1st-generation-specific-1979-1985-18/mpg-1-2-bridgeport-512613/)

skizzle84 02-23-06 12:59 PM

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

Septembers 02-23-06 01:03 PM

REALLY low.

Alex-7 02-23-06 01:33 PM

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.

PaulFitzwarryne 02-23-06 02:42 PM

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.

WackyRotary 02-23-06 03:22 PM

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

trochoid 02-23-06 03:31 PM

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.

Hyper4mance2k 02-23-06 03:40 PM


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 :D 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.

WackyRotary 02-23-06 04:03 PM


Originally Posted by Hyper4mance2k
The louder the better you wimp... J/k :D 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!


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