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Old 08-15-2018, 10:41 PM   #121 (permalink)
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Originally Posted by 19bonestock88 View Post
It would appear so, but that chart doesn’t show rolling diameter, which we all know affects FE...
And it is not accounting for the aero penalty of a 225 width versus a 165 or 175. Too, it is not strictly the case in the chart that wider is always the better. There are exceptions due to variation arising from tire design, I was told.

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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.

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Old 08-15-2018, 10:58 PM   #122 (permalink)
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Quote:
Originally Posted by 19bonestock88 View Post
It would appear so, but that chart doesn’t show rolling diameter, which we all know affects FE...
Makes no sense...less rubber on the road = less resistance, if tread pattern and depth is the same.
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Old 08-16-2018, 12:27 AM   #123 (permalink)
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Well a larger diameter tire experiences less angular deflection as you drive over bumps, makes them seem smaller... it’s partly why crossovers and trucks ride better over rough roads than a small car does...
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Old 08-21-2018, 05:41 PM   #124 (permalink)
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So, I had the FE5 control arms installed on my car the other day, and gave the old arms to the mechanic... the new arms are a little lighter than the old ones, due to being aluminum vs steel for the old ones, so the car lost a little unsprung weight, but most of the reason for this mod is to get a stiffer control arm. In theory it should flex less under load and I should be able to stuff it harder into corners and launch it off the line harder, with less wheelhop and more control... also, the bushings on my old control arms were pretty wasted and it sounded horrible going over bumps, and I was gettting about 7500mi to a pair of new front tires... measured alignment afterward with a tape and the front tires are toed out about 1/4” but I’ll get it corrected soon enough...
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Old 08-28-2018, 03:30 PM   #125 (permalink)
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Alignment was corrected, and since I let a high school career center do the work, it was free... asked them to shoot for zero toe but keep it in spec... “perfect” was 0.1(cant remember inch or degree) and I ended up at .04...
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Old 08-29-2018, 07:46 PM   #126 (permalink)
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Quote:
Originally Posted by 19bonestock88 View Post
Alignment was corrected, and since I let a high school career center do the work, it was free... asked them to shoot for zero toe but keep it in spec... “perfect” was 0.1(cant remember inch or degree) and I ended up at .04...
Can't complain about free! I paid for zero toe.
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.

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Old 08-29-2018, 08:12 PM   #127 (permalink)
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I was prepared to, but the instructor (good friend of mine) just let me have the work free... even raised the car up and loaned me a sawzall to cut off a rattling heat shield... free weight reduction of about 60g lol

I *did* discover something else that will need attention at some point... when my rear axle bushings were changed, my axle wasn’t put back totally straight, and I now have a thrust angle of 0.3 degree... need to loosen the mount on drivers side and shove it back about .3” or split the difference between the two sides (left side back and right side forward)
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Last edited by 19bonestock88; 08-29-2018 at 08:17 PM..
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Old 08-29-2018, 08:40 PM   #128 (permalink)
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Black and Green - '98 Honda Civic DX Coupe
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Yeah, I have worn bushings on the rear driver side suspension... been that way a few years now. I am cheap! CHEAP CHEAP CHEAP!!
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.

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Old 08-29-2018, 09:01 PM   #129 (permalink)
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Join Date: Jun 2016
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IGL - '04 Saturn Ion
Team Saturn
90 day: 56.19 mpg (US)

grayOS (personal use) - '19 Mitsubishi Outlander Sport ES
90 day: 30.71 mpg (US)
Thanks: 47
Thanked 265 Times in 206 Posts
My axle bushings being shot made the car feel really weird in turns and it ate all four tires at a prodigious rate... the guy did try and reassure me that a 0.3 degree thrust angle wasn’t bad, I kinda feel bad because since early spring I’ve spent about $1000 rebuilding the suspension piece by piece, and to have rear alignment off irks me a little...

It still handles like a dream for having cheap tires on it that now feel too narrow and pillowy(even at 55psi)... feels like I need like a 50 series tire for cornering...
You know, and about another 250hp lol...
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Old 08-31-2018, 11:50 AM   #130 (permalink)
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Join Date: Mar 2011
Location: Coastal Southern California
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Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 59.78 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
Thanks: 1,886
Thanked 1,584 Times in 1,077 Posts
Quote:
Originally Posted by 19bonestock88 View Post
My axle bushings being shot made the car feel really weird in turns and it ate all four tires at a prodigious rate... the guy did try and reassure me that a 0.3 degree thrust angle wasn’t bad, I kinda feel bad because since early spring I’ve spent about $1000 rebuilding the suspension piece by piece, and to have rear alignment off irks me a little...

It still handles like a dream for having cheap tires on it that now feel too narrow and pillowy(even at 55psi)... feels like I need like a 50 series tire for cornering...
You know, and about another 250hp lol...
My bushings are worn but my handling ain't THAT bad. Still, you spent your money well if it "handles like a dream" ... we gotta enjoy what we drive because we gotta drive it a lot!

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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.

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