29 to 26 MPG - Miata Turbo Forum - Boost cars, acquire cats.

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Old 04-29-2009, 06:01 PM   #1
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Default 29 to 26 MPG

Lost 3 mpg since I turboed the Miata. Oh well

and for some reason my tach is now acting weird. Sometimes it reads 500 rpm under. I have a spare cluster, just been too lazy to install it.
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Old 04-29-2009, 06:08 PM   #2
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Old 04-29-2009, 06:09 PM   #3
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1. Get Megasquirt
2. Tune
3. ?
4. Profit!
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Old 04-29-2009, 06:11 PM   #4
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When I bought my 99 it was stock, and was getting around 28 MPG? I turbo'd it and used a voo-doo box and got 25mpg. Now with MS it's all over the place until I work the bugs out, but I hope for 30mpg.
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Old 04-29-2009, 06:15 PM   #5
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I get 29mpg, and I drive like an *******.

Tune yo ****.

But really, who cares about 3mpg? Tell your fat girlfriend to get out of the car!
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Old 04-29-2009, 06:20 PM   #6
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I'm lucky to get more than 23MPG
However if I stay out of boost I can get close to 40mpg
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Old 04-29-2009, 06:23 PM   #7
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Quote:
Originally Posted by gospeed81 View Post
I get 29mpg, and I drive like an *******.

Tune yo ****.

But really, who cares about 3mpg? Tell your fat girlfriend to get out of the car!
LOLz wife is far from fat.


I think I know what my problem is. Just waiting for pay day to hit up Olderguy for an o2 clamp. I think my FM o2 clamp is damaged. Every time I test it I get different voltage output readings.
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Old 04-29-2009, 06:29 PM   #8
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Quote:
However if I stay out of boost I can get close to 40mpg


Ok, I need to get out of here. This is the second useless post i've made in the last 20 min
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Old 04-29-2009, 06:35 PM   #9
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I only stayed out of boost for half a tank, it was an experiment.. I havent been able to repeat this experiment.
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Old 04-29-2009, 06:50 PM   #10
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stock i got ~23mpg, then turbo with bandaids i got like 17. now megasquirt 23...oh and 50more whp
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Old 04-29-2009, 08:30 PM   #11
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I average 26 mpg, If I drive like Grannie I'll get as much as 32 mpg. But who really gives a ****?
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Old 04-29-2009, 08:44 PM   #12
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Quote:
Originally Posted by Qckslvr View Post
Lost 3 mpg since I turboed the Miata. Oh well

and for some reason my tach is now acting weird. Sometimes it reads 500 rpm under. I have a spare cluster, just been too lazy to install it.
thx for the update
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Old 04-29-2009, 10:04 PM   #13
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check your base timing. I was getting between 20 and 23 mpg. Checked my base timing because i hadn't done since I bought the car. turns out I was retarded 7.5 degrees. Don't know what caused it. I had about a half a tank of gas left when i fixed it and I can already see that my mileage has improved dramatically. It lookslike I may get an extra 30- 50 miles out of this tank of gas
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Old 04-29-2009, 10:34 PM   #14
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Old 04-29-2009, 10:38 PM   #15
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I *think* i get 21-22 city. I dunno with my 4.1 gears and my tire's diameterz.

interested to see what i get on my drive up to DE actually.
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Old 04-29-2009, 10:40 PM   #16
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Quote:
Originally Posted by Qckslvr View Post
LOLz wife is far from fat.


I think I know what my problem is. Just waiting for pay day to hit up Olderguy for an o2 clamp. I think my FM o2 clamp is damaged. Every time I test it I get different voltage output readings.
I have an o2 clamp that i havent used and dont need anymore. You want it? $35 shipped.
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