My awesome daily project 35mpg/150whp highway donut
#489
Tour de Franzia
![](/mt2011/images_td/ranks/supporter1.gif)
Thread Starter
iTrader: (6)
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,085
Total Cats: 375
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
My idle was getting all cray cray:
This happens occasionally, wtf? It will not do it with the computer plugged in. When it does this and I plug-in the computer, it stops and acts normally. I guess it knows dad is watching.
This happens occasionally, wtf? It will not do it with the computer plugged in. When it does this and I plug-in the computer, it stops and acts normally. I guess it knows dad is watching.
#496
Tour de Franzia
![](/mt2011/images_td/ranks/supporter1.gif)
Thread Starter
iTrader: (6)
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,085
Total Cats: 375
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
On another note, I got 34mpg at 80mph with the headlights up after some work on my return home from F1. I'm running 10* of advance on the cam in the cruise cells, 15.3afr, and 31* of spark.
#498
Tour de Franzia
![](/mt2011/images_td/ranks/supporter1.gif)
Thread Starter
iTrader: (6)
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,085
Total Cats: 375
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Yes, 7% correction on mileage. I managed to pull another .2ms of PW out of 80mph cruise last night and went from 73kpa to 61kpa with the lights up at that speed on flat ground.
Maybe it will get even better.
This is pretty handy for fuel economy:
![](https://www.miataturbo.net/images/smilies/smile.gif)
This is pretty handy for fuel economy:
![](https://www.miataturbo.net/attachments/build-threads-57/60304-my-awesome-daily-project-35mpg-150whp-highway-donut-553978_10101197653844130_356753564_n.jpg?dateline=1353428244)
#499
Tour de Franzia
![](/mt2011/images_td/ranks/supporter1.gif)
Thread Starter
iTrader: (6)
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,085
Total Cats: 375
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
I wanted to take a moment to show everyone how well the Roadster Sport exhaust fit on my daily:
![](https://www.miataturbo.net/attachments/build-threads-57/62216-my-awesome-daily-project-35mpg-150whp-highway-donut-pzmfa.jpg?dateline=1355521655)
All you have to do is drop $50 and get a muffler shop to weld-in another 2" of pipe.
![](https://www.miataturbo.net/attachments/build-threads-57/62217-my-awesome-daily-project-35mpg-150whp-highway-donut-0jdfk.jpg?dateline=1355521655)
Without the pipe the muffler would not mount-up with the rear hangers, the front hanger fit fine. When I compared it to the spare OEM exhaust and the Enthuza 3", the mid-pipe was clearly 2" too short.
Here's a pic of it next to the OEM ehxuast. Notice that the OEM exhaust "tip" has fallen off, and that was like another 2" long. The location of the muffler inlet bend tells the tale.
![Name: SlnQw.jpg
Views: 15
Size: 471.6 KB](https://www.miataturbo.net/attachments/build-threads-57/239764d1683056290-my-awesome-daily-project-35mpg-150whp-highway-donut-slnqw.jpg)
I have a VVT engine, RB NA header, and OEM cat on my daily. My track car has a 99 engine, RB NA header, test-pipe. Apparently I'm doing something wrong.
![](https://www.miataturbo.net/attachments/build-threads-57/62216-my-awesome-daily-project-35mpg-150whp-highway-donut-pzmfa.jpg?dateline=1355521655)
All you have to do is drop $50 and get a muffler shop to weld-in another 2" of pipe.
![](https://www.miataturbo.net/attachments/build-threads-57/62217-my-awesome-daily-project-35mpg-150whp-highway-donut-0jdfk.jpg?dateline=1355521655)
Without the pipe the muffler would not mount-up with the rear hangers, the front hanger fit fine. When I compared it to the spare OEM exhaust and the Enthuza 3", the mid-pipe was clearly 2" too short.
Here's a pic of it next to the OEM ehxuast. Notice that the OEM exhaust "tip" has fallen off, and that was like another 2" long. The location of the muffler inlet bend tells the tale.
![Name: SlnQw.jpg
Views: 15
Size: 471.6 KB](https://www.miataturbo.net/attachments/build-threads-57/239764d1683056290-my-awesome-daily-project-35mpg-150whp-highway-donut-slnqw.jpg)
I have a VVT engine, RB NA header, and OEM cat on my daily. My track car has a 99 engine, RB NA header, test-pipe. Apparently I'm doing something wrong.