View Poll Results: Will polishing the inside of an intake manifold improve performance?
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D17VTECPOWER threads consolidated - how a member should not behave
03-01-2018
#1081
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Re: NOT happy with DC Sports!
You only spent $25?
"USED" can mean different things to different people. Used at first glance means it's not new, and the guy on the other end of the phone expects a claim on a part that has been in use.
AND you SAY you understand that?
Person took your explanation at face value as HE understood it,[B] but still told you warranty only applies to the original purchaser.
"USED" can mean different things to different people. Used at first glance means it's not new, and the guy on the other end of the phone expects a claim on a part that has been in use.
AND you SAY you understand that?
Person took your explanation at face value as HE understood it,[B] but still told you warranty only applies to the original purchaser.
I was very clear that the header is used, and he said it’s still covered under warranty even though it’s used as long as I have a valid receipt, which I do, since it should not have cracked either way. He asked me to send pictures, so I pulled the header off and sent several pictures of the cracks. He then said that I must be the original owner of the header for it to be covered under warranty, which I understand.
Originally Posted by ezone
You only spent $25?
03-02-2018
#1083
Why no long tube headers?
I am wondering why no one makes a long tube header for the D17A2. I can’t see any reason why no one could make a long tube header. It would make more power, even though maybe only a few horsepower. So is there some reason why no one makes long tube headers?
03-02-2018
#1085
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Rep Power: 78 Re: Why no long tube headers?
since i see you as a bit of an eco-nut(politely), i'mn curious why you would want one. you'll be losing low rpm power in exchange for high rpm power.
last time i went with 1-3/4 full length headers on my ford beater. now that i'm a bit older i went with 1-5/8 shorty equal lengths, part of the reason is i've added more power than i need, and i'd like to shift a little more power to the lower rpm range. and hopefully it translates to a little bit better fuel economy. having the o2's closer to the engine also makes them last longer as they get more heat + faster air passing by, and therefore stay cleaner.
charts here comparing small vs large tube and short vs long tube
https://www.sandersonheaders.com/let...technical.html
last time i went with 1-3/4 full length headers on my ford beater. now that i'm a bit older i went with 1-5/8 shorty equal lengths, part of the reason is i've added more power than i need, and i'd like to shift a little more power to the lower rpm range. and hopefully it translates to a little bit better fuel economy. having the o2's closer to the engine also makes them last longer as they get more heat + faster air passing by, and therefore stay cleaner.
charts here comparing small vs large tube and short vs long tube
https://www.sandersonheaders.com/let...technical.html
03-02-2018
#1086
Re: Why no long tube headers?
since i see you as a bit of an eco-nut(politely), i'mn curious why you would want one. you'll be losing low rpm power in exchange for high rpm power.
last time i went with 1-3/4 full length headers on my ford beater. now that i'm a bit older i went with 1-5/8 shorty equal lengths, part of the reason is i've added more power than i need, and i'd like to shift a little more power to the lower rpm range. and hopefully it translates to a little bit better fuel economy. having the o2's closer to the engine also makes them last longer as they get more heat + faster air passing by, and therefore stay cleaner.
charts here comparing small vs large tube and short vs long tube
https://www.sandersonheaders.com/let...technical.html
last time i went with 1-3/4 full length headers on my ford beater. now that i'm a bit older i went with 1-5/8 shorty equal lengths, part of the reason is i've added more power than i need, and i'd like to shift a little more power to the lower rpm range. and hopefully it translates to a little bit better fuel economy. having the o2's closer to the engine also makes them last longer as they get more heat + faster air passing by, and therefore stay cleaner.
charts here comparing small vs large tube and short vs long tube
https://www.sandersonheaders.com/let...technical.html
03-02-2018
#1087
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Rep Power: 78 Re: Why no long tube headers?
i think because i'm new here, and the first thread of yours i saw was about you wanting to go through all the trouble to re-gear a trans attempting to lower the rpm by 500. (: jusy fyi i think if i wanted to do that, i'd probably get taller tires and then have a custom converter with a slight stall of about 200-300rpm above stock to increase 1,2,3 performance, but retain the lockup function
03-02-2018
#1088
Re: Why no long tube headers?
i think because i'm new here, and the first thread of yours i saw was about you wanting to go through all the trouble to re-gear a trans attempting to lower the rpm by 500. (: jusy fyi i think if i wanted to do that, i'd probably get taller tires and then have a custom converter with a slight stall of about 200-300rpm above stock to increase 1,2,3 performance, but retain the lockup function
BTW, I’m not really an eco nut. I was just curious what would happen and if I even could. I’ll give you +1 rep since you’re being helpful!
03-02-2018
#1089
Why aren’t bearings fastened down?
I recently started wondering why cam, crank and rod bearings are not fastened down so they can’t spin. If the bearings just had a peg on the back and the bearing cap had a hole, spun bearings would physically not be possible since the peg would be holding it in place. So why don’t car companies do it? Just because it would be more expensive?
03-02-2018
#1090
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Rep Power: 78 Re: Why aren’t bearings fastened down?
there is a dimple in the bearing and the cap that lines things up and helps it line up and not spin
then there is bearing crush. the bearing is bigger than the hole it fits into. when torqued the crush makes locks it together tightly. i'm showing it exaggerated here but this one actually measures 0.0075" taller than the flat on the cap before you tighten it
and also bearings go in clean and DRY on the backside, which also prevents them from spinning. that bearing in the picture has had 70k miles of pure abuse, yet when i removed it, the back is still dry and still has no oil on it. i think a lot of people screw this up and lube the backs
besides if that bearing did not spin when required to, what would the outcome be? would the crank snap? would the rod twist like a pretzel? scary to think about.
then there is bearing crush. the bearing is bigger than the hole it fits into. when torqued the crush makes locks it together tightly. i'm showing it exaggerated here but this one actually measures 0.0075" taller than the flat on the cap before you tighten it
and also bearings go in clean and DRY on the backside, which also prevents them from spinning. that bearing in the picture has had 70k miles of pure abuse, yet when i removed it, the back is still dry and still has no oil on it. i think a lot of people screw this up and lube the backs
besides if that bearing did not spin when required to, what would the outcome be? would the crank snap? would the rod twist like a pretzel? scary to think about.
03-02-2018
#1091
If you think a good mechanic is expensive, try hiring a bad one
Re: Why aren’t bearings fastened down?
There are no cam bearings to spin.
All other typical bearings have a tab on one end to prevent spinning. It's cheap, it works great, it's reliable AF, and it's been this way for eons.
If a bearing "spins", 99% of the time it's because of an underlying lubrication problem.
That means it is NOT the fault of the bearing, the journal, whatever is spinning in the bearing, nor the engineers that specified this type of bearing for the application
BTW some engines DO use pinned bearings.
You should go to engineer school so you can design a few engines for a major player in the industry
All other typical bearings have a tab on one end to prevent spinning. It's cheap, it works great, it's reliable AF, and it's been this way for eons.
If a bearing "spins", 99% of the time it's because of an underlying lubrication problem.
That means it is NOT the fault of the bearing, the journal, whatever is spinning in the bearing, nor the engineers that specified this type of bearing for the application
BTW some engines DO use pinned bearings.
You should go to engineer school so you can design a few engines for a major player in the industry
03-02-2018
#1092
Re: Why aren’t bearings fastened down?
there is a dimple in the bearing and the cap that lines things up and helps it line up and not spin
Attachment 112022
then there is bearing crush. the bearing is bigger than the hole it fits into. when torqued the crush makes locks it together tightly. i'm showing it exaggerated here but this one actually measures 0.0075" taller than the flat on the cap before you tighten it
Attachment 112023
and also bearings go in clean and DRY on the backside, which also prevents them from spinning. that bearing in the picture has had 70k miles of pure abuse, yet when i removed it, the back is still dry and still has no oil on it. i think a lot of people screw this up and lube the backs
besides if that bearing did not spin when required to, what would the outcome be? would the crank snap? would the rod twist like a pretzel? scary to think about.
Attachment 112022
then there is bearing crush. the bearing is bigger than the hole it fits into. when torqued the crush makes locks it together tightly. i'm showing it exaggerated here but this one actually measures 0.0075" taller than the flat on the cap before you tighten it
Attachment 112023
and also bearings go in clean and DRY on the backside, which also prevents them from spinning. that bearing in the picture has had 70k miles of pure abuse, yet when i removed it, the back is still dry and still has no oil on it. i think a lot of people screw this up and lube the backs
besides if that bearing did not spin when required to, what would the outcome be? would the crank snap? would the rod twist like a pretzel? scary to think about.
03-02-2018
#1093
Re: Why aren’t bearings fastened down?
There are no cam bearings to spin.
All other typical bearings have a tab on one end to prevent spinning. It's cheap, it works great, it's reliable AF, and it's been this way for eons.
If a bearing "spins", 99% of the time it's because of an underlying lubrication problem.
That means it is NOT the fault of the bearing, the journal, whatever is spinning in the bearing, nor the engineers that specified this type of bearing for the application
BTW some engines DO use pinned bearings.
You should go to engineer school so you can design a few engines for a major player in the industry
All other typical bearings have a tab on one end to prevent spinning. It's cheap, it works great, it's reliable AF, and it's been this way for eons.
If a bearing "spins", 99% of the time it's because of an underlying lubrication problem.
That means it is NOT the fault of the bearing, the journal, whatever is spinning in the bearing, nor the engineers that specified this type of bearing for the application
BTW some engines DO use pinned bearings.
You should go to engineer school so you can design a few engines for a major player in the industry
03-02-2018
#1094
If you think a good mechanic is expensive, try hiring a bad one
03-02-2018
#1095
Re: Why aren’t bearings fastened down?
There are no cam bearings to spin.
All other typical bearings have a tab on one end to prevent spinning. It's cheap, it works great, it's reliable AF, and it's been this way for eons.
If a bearing "spins", 99% of the time it's because of an underlying lubrication problem.
That means it is NOT the fault of the bearing, the journal, whatever is spinning in the bearing, nor the engineers that specified this type of bearing for the application
BTW some engines DO use pinned bearings.
You should go to engineer school so you can design a few engines for a major player in the industry
All other typical bearings have a tab on one end to prevent spinning. It's cheap, it works great, it's reliable AF, and it's been this way for eons.
If a bearing "spins", 99% of the time it's because of an underlying lubrication problem.
That means it is NOT the fault of the bearing, the journal, whatever is spinning in the bearing, nor the engineers that specified this type of bearing for the application
BTW some engines DO use pinned bearings.
You should go to engineer school so you can design a few engines for a major player in the industry
03-02-2018
#1096
If you think a good mechanic is expensive, try hiring a bad one
Re: Why aren’t bearings fastened down?
How many pinned bearings have you heard of that spun? Probably zero.
03-02-2018
#1098
If you think a good mechanic is expensive, try hiring a bad one
03-02-2018
#1100
Re: 2005 Civic strut bar
I could probably do that. Sorry for the dumb question, but will it interfere with checking or adding oil? A friend has a strut bar on his EM2 and he has to remove it every time he needs to remove it every time he has to either check or add engine oil. I don’t remember the brand. That would be a dealbreaker for me though.
03-02-2018
#1101
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Re: Should I upgrade my front sway bar? Poll
I am considering upgrading my front sway bar, but I’m not sure if I should maybe get a front strut bar instead. The car handles great as is, but I’m never satisfied with anything LOL. The front sway bar is a 16MM, and the rear is a 21MM bar. I liked the result of upgrading the rear sway bar, thanks for the suggestion guys. For $77 and 30 minutes of my time, I’m quite happy with the results. With the bigger rear sway bar, the car feels noticeably more stable, and it doesn’t seem to be affected by the wind blowing at it as much. I liked the results of the larger sway bar enough that I am now considering installing a larger front sway bar too, but I’m not sure if a larger front sway bar would help much. I would probably use an OEM RSX sway bar if I choose to upgrade it. Would you suggest upgrading the front sway bar too? I think it would be a good idea, but I’m not sure. Thanks for your help!
Thanks.
Last edited by Hondaman4ever; 03-02-2018 at 02:33 PM.
03-02-2018
#1102
If you think a good mechanic is expensive, try hiring a bad one
Re: Why aren’t bearings fastened down?
Want to know why it spins? Heat welding occurs after lubrication is lost.
Any time a bearing spins in a journal there is serious measurable damage to all parts involved on both sides (surfaces) of the bearing that spun.
If a bearing is actually pinned in place with a solid steel dowel, the shear forces encountered during a seizure are very likely to fracture the casting the (steel) dowel pin is located (drilled) in...and that makes whatever cast part that was (usually the engine block or case) unrepairable.
03-02-2018
#1103
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Rep Power: 338 Re: Why aren’t bearings fastened down?
Regardless, what does it matter?
Too much spare time, go fix what is wrong with your car.
Too much spare time, go fix what is wrong with your car.
03-02-2018
#1104
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Rep Power: 338 Re: Why no long tube headers?
O2 sensor positioning.
Did not even need to think for a second.
If you ever removed your header you would know.
Did not even need to think for a second.
If you ever removed your header you would know.
03-02-2018
#1105
Re: Should I upgrade my front sway bar? Poll
Yo D17, do you mind telling me what upgrades to the suspension you first did that made the car "handle great" ? My '03 is stock suspension and it sucks as you know, and I'm thinking about doing something to improve it a little. I don't want to do a whole lot of things but any improvement over what it is now would be nice.
Thanks.
Thanks.
Last edited by D17VTECPOWER; 03-03-2018 at 02:19 PM.
03-02-2018
#1106
Re: Should I upgrade my front sway bar? Poll
Yo D17, do you mind telling me what upgrades to the suspension you first did that made the car "handle great" ? My '03 is stock suspension and it sucks as you know, and I'm thinking about doing something to improve it a little. I don't want to do a whole lot of things but any improvement over what it is now would be nice.
Thanks.
Thanks.
03-02-2018
#1107
Re: Why aren’t bearings fastened down?
Incorrect IMO. It will still spin.
Want to know why it spins? Heat welding occurs after lubrication is lost.
Any time a bearing spins in a journal there is serious measurable damage to all parts involved on both sides (surfaces) of the bearing that spun.
If a bearing is actually pinned in place with a solid steel dowel, the shear forces encountered during a seizure are very likely to fracture the casting the (steel) dowel pin is located (drilled) in...and that makes whatever cast part that was (usually the engine block or case) unrepairable.
Want to know why it spins? Heat welding occurs after lubrication is lost.
Any time a bearing spins in a journal there is serious measurable damage to all parts involved on both sides (surfaces) of the bearing that spun.
If a bearing is actually pinned in place with a solid steel dowel, the shear forces encountered during a seizure are very likely to fracture the casting the (steel) dowel pin is located (drilled) in...and that makes whatever cast part that was (usually the engine block or case) unrepairable.
03-02-2018
#1109
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Rep Power: 338 Re: Why no long tube headers?
pointless regardless and you seem to have a lot of spare time.
Mikey already answered your question.
Mikey already answered your question.
03-02-2018
#1110
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Rep Power: 338 Re: Should I upgrade my front sway bar? Poll
Yo D17, do you mind telling me what upgrades to the suspension you first did that made the car "handle great" ? My '03 is stock suspension and it sucks as you know, and I'm thinking about doing something to improve it a little. I don't want to do a whole lot of things but any improvement over what it is now would be nice.
Thanks.
Thanks.
details are in my signature links
