18 mpg
03-04-2010, 07:46 PM
#24
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The target table behaves completely different when used with a narrowband sensor. I've got mine to go to open loop above 85 kPa, and anything that isn't set to a target of 14.7 is ignored by the Adaptronic.
I've already had all the cells tuned on a stead state dyno so I think having a wideband O2 sensor is bordering on useless now, unless I want to target a 15:1 cruise or something.
If I was plugging in an wideband O2 sensor into the Adaptronic then yes it would be fail city.
This is what I came up with on my old car (LC-1 equipped) which gave good economy:
It's not really relevant for this setup, as discussed above re narrowband sensor.
I've already had all the cells tuned on a stead state dyno so I think having a wideband O2 sensor is bordering on useless now, unless I want to target a 15:1 cruise or something.
If I was plugging in an wideband O2 sensor into the Adaptronic then yes it would be fail city.
This is what I came up with on my old car (LC-1 equipped) which gave good economy:
It's not really relevant for this setup, as discussed above re narrowband sensor.
Last edited by timk; 03-04-2010 at 07:57 PM.
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03-05-2010, 07:23 AM
#27
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Here's a link to a datalog from tonight:
http://sites.google.com/site/timkent/5-03-2010_2104.csv
It appears that the narrowband O2 is hovering around stoich at cruise like it should.
http://sites.google.com/site/timkent/5-03-2010_2104.csv
It appears that the narrowband O2 is hovering around stoich at cruise like it should.
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03-05-2010, 02:23 PM
#33
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hehe
Thats actually Crome, which is FREE!
You can re-chip the factory ECU, burn a Crome tune onto the chip, and you have the resolution of a standalone AEM and it only cost you 30 bucks.
Now why couldnt mazda have made their ECUs so capable?
Thats actually Crome, which is FREE!
You can re-chip the factory ECU, burn a Crome tune onto the chip, and you have the resolution of a standalone AEM and it only cost you 30 bucks.
Now why couldnt mazda have made their ECUs so capable?
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03-05-2010, 02:43 PM
#34
We wire up after market ecu's, why couldn't we use a honda ecu? They can be reprogrammed so it shouldn't matter as long as the cylinder count is the same. Or does honda use some wierd cam/crank signal? Then we could have powered by honda stickers too!
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03-05-2010, 02:58 PM
#35
It has inches/psi of vac/boost on the row below millibar
We wire up after market ecu's, why couldn't we use a honda ecu? They can be reprogrammed so it shouldn't matter as long as the cylinder count is the same. Or does honda use some wierd cam/crank signal? Then we could have powered by honda stickers too!
We wire up after market ecu's, why couldn't we use a honda ecu? They can be reprogrammed so it shouldn't matter as long as the cylinder count is the same. Or does honda use some wierd cam/crank signal? Then we could have powered by honda stickers too!
).
Now why couldnt mazda have made their ECUs so capable?
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03-05-2010, 03:05 PM
#36
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You could make a honda ECU wok on a miata, but you would have to mount the honda distributor on the front of a cam gear.
It has to go on the front of the cam because honda engines spin backwards, and they have the distributor on the back of the cam.
I actually thought about doing, but it would probably prove to be pretty difficult.
It has to go on the front of the cam because honda engines spin backwards, and they have the distributor on the back of the cam.
I actually thought about doing, but it would probably prove to be pretty difficult.
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03-05-2010, 03:08 PM
#37
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Actually in Japan, they did. Japanese miatas used an ecu that had a separate ROM chip on it. You could change the fuel/timing curves, injector size, etc. For whatever reason, when they brought these cars to America, they integrated the ROM into the CPU and noone to my knowledge has come up with a way to break it out into something flashable.
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03-05-2010, 03:09 PM
#38
You could make a honda ECU wok on a miata, but you would have to mount the honda distributor on the front of a cam gear.
It has to go on the front of the cam because honda engines spin backwards, and they have the distributor on the back of the cam.
I actually thought about doing, but it would probably prove to be pretty difficult.
It has to go on the front of the cam because honda engines spin backwards, and they have the distributor on the back of the cam.
I actually thought about doing, but it would probably prove to be pretty difficult.
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03-05-2010, 03:23 PM
#40
The company is called GRID Japan.
Some info:
ROMチューニング用追加基板の取付
ROM????
(all in japanese
)And the jackpot:
Japanese Performance Parts and ROM Tuning GRID
Not even sure if they still make the miata version.
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