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Old 04-17-2013, 07:35 AM   #51
scott06sti
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light weight pulleys wont help did some research with a dyno the only the light weight pulleys do is lose power, and I drive an 06 sti with complete HKS exhaust, 5 advan wheels one is the spare, crawford front mount intercooler, snow alchohe injection, bigger fuel pump an injectors, and still get 15-22 mpg. All depends on your tune and how you drive
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Old 04-19-2013, 01:00 AM   #52
pbrules10
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Ok, so here's the new data log. This was 1st through 4th from 0 to about 55mph.

https://docs.google.com/spreadsheet/...zV1ctV0E#gid=0
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Old 04-19-2013, 08:30 AM   #53
Cathexis
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You need to set your file public on google.
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Old 04-19-2013, 11:06 AM   #54
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Sorry about that, fixed it !
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Old 04-19-2013, 11:37 AM   #55
the suicidal eggroll
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Well that's odd. In your last log AFRLA was pushing hard positive, and had hit +9% by the time you stopped the log. In this one it's hanging out at a constant -2%, which is fine. I see nothing in that log that stands out as a problem. The car was fully up to temp when you took this log, right?
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Old 04-19-2013, 12:15 PM   #56
pbrules10
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Correct full warm up. This was just me easy driving up to highway speeds.
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Old 04-19-2013, 09:44 PM   #57
pbrules10
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Anything?
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Old 04-20-2013, 06:28 PM   #58
pbrules10
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Bumpp
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Old 04-22-2013, 05:59 PM   #59
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Any thoughts on this one guys?
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Old 04-22-2013, 06:21 PM   #60
Fierysun
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if the o2 sensor is faulty you will certainly get a drop in mpg. i had a new bosch (always go with a Denso is what i learned from this) unit go bad within 1 year with less then 15k miles and my mpg was horrendous until i changed it out.
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Old 04-22-2013, 08:24 PM   #61
MRGierut013
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Quote:
Originally Posted by pbrules10 View Post

Well if you figure the fuel tank holds approximately 15.9 gallons and on a good fill I get 220 miles out if it (220/15.9) that's about 14 mpgs. Most of the time I get like 200 miles out of the tank so even less then 14 mpgs.
You should only divide by 15.9 if your running the tank dry...
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Old 04-24-2013, 05:56 PM   #62
Fierysun
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Quote:
Originally Posted by MRGierut013 View Post
You should only divide by 15.9 if your running the tank dry...
You should divide total miles by the # of gallons it took to fill up from the last full tank.

I.E. if you went 200 miles and it took 10 gallons to fill up, your mpg would be 20/gal.
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Old 04-24-2013, 07:11 PM   #63
MRGierut013
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Quote:
Originally Posted by Fierysun View Post

You should divide total miles by the # of gallons it took to fill up from the last full tank.

I.E. if you went 200 miles and it took 10 gallons to fill up, your mpg would be 20/gal.
Yesir.
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Old 04-25-2013, 12:21 PM   #64
slowride05
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i currently am getting about 16 mpg on about 90% city driving. i feel its way too low but my tuner told me that was normal :/. i have changed o2 sensor, cleaned maf, and changed spark plugs and still the same. cars an 05 sti with catless dp, stromung catback and protune.
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