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07-22-2009, 09:33 PM
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#1 | | OMGWTFBBQ is a common word I say everyday
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| Throttle Response After Fillup
Hey guys, I've been noticing this on my cars when I fill up the tank - the throttle response immediately improves. It happens on both my CSX and the Odyssey, and it's got me scratching my head. So, I stop at the gas station, fill the car up to full, and it's as if the car is happy that it got fed.
Is this due to calibration of the ECU, or placebo effect. Anyone notice this?
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Originally Posted by PeanutButter  Damn, not only is yours veiny AF, yours is thick AF too. Yours is twice as thick as mine.. That looks like a 2" or maybe even 3"? | | 
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07-22-2009, 09:37 PM
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#2 | | RS.net, helping ugly ppl have sex since 2001
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Originally Posted by roastpuff Hey guys, I've been noticing this on my cars when I fill up the tank - the throttle response immediately improves. It happens on both my CSX and the Odyssey, and it's got me scratching my head. So, I stop at the gas station, fill the car up to full, and it's as if the car is happy that it got fed.
Is this due to calibration of the ECU, or placebo effect. Anyone notice this? | If anything it should be less responsive cuz of the extra weight from a full tank of gas. =P
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07-22-2009, 09:49 PM
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#3 | | HELP ME PLS!!!
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My girlfriend and I had the same discussion a few days ago...she claims that her car is slightly faster after filling the car up to full...I told her it should be slower due to the extra weight.
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07-22-2009, 09:52 PM
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#4 | | what manner of phaggotry is this
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it feels faster because your wallet is lighter and your ass is now more directly connected to the seat. adding horse powers to the butt dyno
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Last edited by RRxtar; 07-22-2009 at 10:58 PM.
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07-22-2009, 10:14 PM
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#5 | | G'd up! w000weee
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^ lol
technically the car should be slower cuz of the additional weight
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07-22-2009, 10:51 PM
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#6 | | Need to Seek Professional Help
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its all in the mind
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my vehicles are slow ffffuuuuu
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07-22-2009, 10:55 PM
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#7 | | OWNER/C.F.O./MONEYMAN
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maybe ur letting ur tank go too empty, causing lack of fuel for the pump to be pushing.
highly unlikely, more likely its just u mentally feel its got more power.
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07-22-2009, 11:18 PM
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#8 | | Hacked RS to become a mod
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I always thought I noticed that too, but it defies all logic.. The car should be noticeably slower after filling up, not faster. But it always seems faster. Weird.
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07-22-2009, 11:18 PM
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#9 | | How I Mod your mother
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Thats weird, I always feel slower after I fill up
__________________ Quote: | [19-07, 16:52] bloodmack: EB did u change my avatar and title?
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07-22-2009, 11:19 PM
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#10 | | I am on the internets
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seems faster in any cars ive driven
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07-22-2009, 11:28 PM
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#11 | | OMGWTFBBQ is a common word I say everyday
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Originally Posted by !SG maybe ur letting ur tank go too empty, causing lack of fuel for the pump to be pushing.
highly unlikely, more likely its just u mentally feel its got more power. | I usually fill around half-tank. And yes, I logically deduced that weight = slower car.
It's mainly in the throttle response... just seems like that the car has more pep.
Mental issues, perhaps... 
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Originally Posted by PeanutButter Damn, not only is yours veiny AF, yours is thick AF too. Yours is twice as thick as mine.. That looks like a 2" or maybe even 3"? | | |
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07-22-2009, 11:48 PM
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#12 | | HELP ME PLS!!!
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mine seems heavier, and but same response
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07-23-2009, 12:07 AM
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#13 | | Professional Lurker
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my logic to it was the weight distribution became more even
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07-23-2009, 12:17 AM
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#14 | | RS.net, helping ugly ppl have sex since 2001
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ur car now pitches more during acceleration because more mass is in the back. more g is felt from the pitching. simple as that. p-cars should be opposite
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07-23-2009, 02:17 AM
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#15 | | I answer every Emotion with an emoticon
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I've had the same feeling too.
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Originally Posted by MajinHurricane who would ban me? lol. Look at my post count. | | |
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07-23-2009, 04:40 AM
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#16 | | No Duplicate Accounts Allowed
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| my knowledge is all speculation and theory,
im assuming that the pathway hole from a gas tank to engine is located at the bottom of a V shaped gas tank, allowing gravity to get gasoline to the engine,
So,
to explain let the gas tank = a syringe pointing down so the hole/needle is at bottom.
Let the FORCE of a hand that pushes the syringe = gasoline.
So more Gasoline the tank has = more force on the syringe = faster travel of gasoline to gastank.
4.40am, half drunk, just a theory lol especially since i just filled up gas on my way home and also felt that the car is responsive.
also another theory i had is that
before going to the gas station, obviously we are near empty, so we are driving very economically and not flooring it,
but after we fill up, we lose the fear of running out of gas and drive as hard as we want.
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07-23-2009, 06:58 AM
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#17 | | Rs has made me the woman i am today!
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You have a fuel pump, I think the flow rates would be the same regardless of a full tank or a half tank.
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07-23-2009, 07:11 AM
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#18 | | Need my Daily Fix of RS
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| Quote:
Originally Posted by RRxtar it feels faster because your wallet is lighter and your ass is now more directly connected to the seat. adding horse powers to the butt dyno | Hahaha... I concur.
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07-23-2009, 10:41 AM
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#19 | | RS.net, helping ugly ppl have sex since 2001
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More gas means gravity pushes the fuel faster down the tube into your engine = MORE POWAAAAAAAHAHHH! It's like a gravity-powered turbo, but for gas instead of air.
If you strapped a giant gas tank suspended 5 feet above your car, it would be like strapping a twin turbo with dual shot of NAWWWWS into your engine.
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07-23-2009, 11:45 AM
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#20 | | Revscene.net has a homepage?!
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| Quote:
Originally Posted by simsimi1004 my knowledge is all speculation and theory,
im assuming that the pathway hole from a gas tank to engine is located at the bottom of a V shaped gas tank, allowing gravity to get gasoline to the engine,
So,
to explain let the gas tank = a syringe pointing down so the hole/needle is at bottom.
Let the FORCE of a hand that pushes the syringe = gasoline.
So more Gasoline the tank has = more force on the syringe = faster travel of gasoline to gastank.
4.40am, half drunk, just a theory lol especially since i just filled up gas on my way home and also felt that the car is responsive.
also another theory i had is that
before going to the gas station, obviously we are near empty, so we are driving very economically and not flooring it,
but after we fill up, we lose the fear of running out of gas and drive as hard as we want. | Wait, you drove half drunk?...
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07-23-2009, 11:55 AM
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#21 | | WOAH! i think Vtec just kicked in!
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lol more gas wont "push" anything.
the fuel pump pushes the gas, and it will put the same volume of gas no matter how much gas u have in ur tank
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07-23-2009, 11:56 AM
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#22 | | Banned By Establishment
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Originally Posted by hk20000 ur car now pitches more during acceleration because more mass is in the back. more g is felt from the pitching. simple as that. p-cars should be opposite | this thread now has been KO'd
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07-23-2009, 12:17 PM
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#23 | | My dinner reheated before my turbo spooled
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Originally Posted by sonick More gas means gravity pushes the fuel faster down the tube into your engine = MORE POWAAAAAAAHAHHH! It's like a gravity-powered turbo, but for gas instead of air.
If you strapped a giant gas tank suspended 5 feet above your car, it would be like strapping a twin turbo with dual shot of NAWWWWS into your engine. | end thread^
this information is absolutely correct no matter what any one says! 
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07-23-2009, 12:21 PM
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#24 | | I *heart* Revscene.net very Muchie
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Fresh gas is colder than the re-circulated crap in your tank... so your fuel pump (which is in the tank, and cooled by fuel) runs cooler... so it runs better after you fill it up. 
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07-23-2009, 01:04 PM
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#25 | | RS.net, helping ugly ppl have sex since 2001
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Originally Posted by jlenko Fresh gas is colder than the re-circulated crap in your tank... so your fuel pump (which is in the tank, and cooled by fuel) runs cooler... so it runs better after you fill it up. | I believe gas stations regulate the gas temperature to about 15 degrees celsius. So, if what you are saying is correct. I would get a monster acceleration when i go to work in the morning in the winter since its usually less than 15 outside?
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