18 mpg
#1
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Join Date: Dec 2004
Location: Brisbane, Australia
Posts: 1,278
Total Cats: 37
18 mpg
So yeah, my fuel economy sucks *****. I can get 21 MPG if the tank is mostly highway driving and I drive like a grandma.
I'll post up pics of my fuel and ignition maps shortly.
My setup is a 99 with a 2002 bottom end (10:1 compression), JR M45 @ 6-7psi, Adaptronic e420c tuned by a respectable tuner, JR water-to-air intercooler, JR headers, Magnaflow rear muffler (2.5" all the way), RX-7 460cc injectors recently cleaned and flow tested.
It made 167hp on a Dyno Dynamics.
I don't have any blowby and I have a catch can between my PCV valve and intake manifold, so it's as clean as a whistle.
I'm not using any fluids, everything seems fine engine wise. The only known mechanical problem is the gearbox - it sounds like it is out of a rally car.
Any ideas?
I'll post up pics of my fuel and ignition maps shortly.
My setup is a 99 with a 2002 bottom end (10:1 compression), JR M45 @ 6-7psi, Adaptronic e420c tuned by a respectable tuner, JR water-to-air intercooler, JR headers, Magnaflow rear muffler (2.5" all the way), RX-7 460cc injectors recently cleaned and flow tested.
It made 167hp on a Dyno Dynamics.
I don't have any blowby and I have a catch can between my PCV valve and intake manifold, so it's as clean as a whistle.
I'm not using any fluids, everything seems fine engine wise. The only known mechanical problem is the gearbox - it sounds like it is out of a rally car.
Any ideas?
#10
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Can you guys not rescale your tables to provide better resolution in the areas you actually use? Every adaptronic table I see goes up to 300kPa... Seems to me that it would be possible to gain at least 4 rows and 2 columns towards increasing resolution and helping the table transition in areas where VE does not change linearly.
#11
We need to see target afr's and a log or two of cruise as well as wot. fuel maps alone are useless.....That said I'm still working on fine tuning my fueling, and its 26-29 (city) driving normally, and about 20-25 getting on it and boosting all the time. Not bad but there's room for improvement imo.
#12
Can you guys not rescale your tables to provide better resolution in the areas you actually use? Every adaptronic table I see goes up to 300kPa... Seems to me that it would be possible to gain at least 4 rows and 2 columns towards increasing resolution and helping the table transition in areas where VE does not change linearly.
#13
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Can you guys not rescale your tables to provide better resolution in the areas you actually use? Every adaptronic table I see goes up to 300kPa... Seems to me that it would be possible to gain at least 4 rows and 2 columns towards increasing resolution and helping the table transition in areas where VE does not change linearly.
it's still evenly spaced.
#16
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it does nothing. if you change that number to some smaller value, the left hand colum will change and that's it. you'll seriously overfuel your ****.
it will jack up your spark table
it will also jack up your AFR targets.
and what sucks most is that there is no FAST way to fix it. You have to go in and edit every cell individually.
so as much fun as that sounds...
it will jack up your spark table
it will also jack up your AFR targets.
and what sucks most is that there is no FAST way to fix it. You have to go in and edit every cell individually.
so as much fun as that sounds...
#19
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Thread Starter
Join Date: Dec 2004
Location: Brisbane, Australia
Posts: 1,278
Total Cats: 37
I'm aiming for stoich at cruise, because I'm just running a narrowband sensor I can't target anything else anyway. Here's my target table:
It could be the transmission I guess, the brakes are all good though.
I'll do some datalogging and report back, thanks guys!
It could be the transmission I guess, the brakes are all good though.
I'll do some datalogging and report back, thanks guys!