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Old 04-05-2012, 05:40 PM   #1 (permalink)
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Silver Bullet - '01 Honda Insight Hybrid
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Got a few MPG from new wheels and tires and lowering springs

Car is a 2003 Honda Civic Hybrid with 237k. I was getting 48.4 all day long with the factory wheels and some junk tires. Put a set of Konig Helium Ultralight rims with Zeix 512s on there. 4lbs lighter per wheel! Running 42psi front and rear. That took her to 48.8.

Also lowered it 1.3" with a set of Skunk 2 springs for another few points, currently getting 49.2mpg. And that's all without the IMA system working yet!!

Goals; get the IMA working, maybe install an MIMA, and try some LRR tires on the factory rims. Might try making a belly pan for it too, there's definately some drag on the underside where the back of the K frame is and a HUGE pocket where the muffler is.

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Old 04-05-2012, 07:05 PM   #2 (permalink)
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Such small increases are hard to quantify but yeah that's how the wheels and springs mods are supposed to work.
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Old 04-05-2012, 07:06 PM   #3 (permalink)
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Lean and Mean - '98 Honda Civic HX
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Congrats on the increasing numbers. Are those numbers from tank or trip data? I was thinking about buying a set of 03-05 hybrid wheels but then found out they weigh around 14-15 lbs. Not very good for a 14 inch wheel. I'm still looking for a set of HX wheels to convert it back to stock.
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Old 04-06-2012, 12:24 AM   #4 (permalink)
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Are the civic hybrid wheels really that heavy? I was thinking about getting a set but if they weigh that much then it's not worth it.
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Old 04-06-2012, 01:17 AM   #5 (permalink)
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Black and Green - '98 Honda Civic DX Coupe
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Quote:
Originally Posted by GoGreenAuto View Post
Car is a 2003 Honda Civic Hybrid with 237k. I was getting 48.4 all day long with the factory wheels and some junk tires. Put a set of Konig Helium Ultralight rims with Zeix 512s on there. 4lbs lighter per wheel! Running 42psi front and rear. That took her to 48.8.

Also lowered it 1.3" with a set of Skunk 2 springs for another few points, currently getting 49.2mpg. And that's all without the IMA system working yet!!

Goals; get the IMA working, maybe install an MIMA, and try some LRR tires on the factory rims. Might try making a belly pan for it too, there's definately some drag on the underside where the back of the K frame is and a HUGE pocket where the muffler is.
Cool! With the IMA and summer coming... set up a fuel log and join Team Honda.
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See my MODDING THREAD for ongoing projects. Black and Green's garage entry has more details. I plan to DIY rebuild this car over decades as parts die--replacing or modding small and major parts until it becomes a different car of roughly the same shape. My fuel economy goal is 60+ mpg while averaging posted speed limits.
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Old 04-06-2012, 02:02 AM   #6 (permalink)
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Quote:
Originally Posted by Ryland View Post
Are the civic hybrid wheels really that heavy? I was thinking about getting a set but if they weigh that much then it's not worth it.
I found a guy online that weighed them on a bathroom scale and got 15 pounds without tires. I didn't believe it either but I found another source that got 14 pounds. It seems like after the 1st gen Insight wheel Honda just stopped caring about lightweight wheels. Probably because people cared more about styling than fuel economy.
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Old 04-06-2012, 08:49 AM   #7 (permalink)
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I remember the first time I saw a first generation Insight new at the dealership. All I could think about when I looked at it was: Over $21,000 for that!!!!

Hindsight being 20 / 20, I coulda', shoulda'..........rats. Another opportunity lost to lack of education.
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Old 04-06-2012, 04:53 PM   #8 (permalink)
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Silver Bullet - '01 Honda Insight Hybrid
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The stockers are pretty heavy. An older set of HX wheels is the way to go if you want factory. They're super rare these days.

I'm assuming they beefed up the wheels because the cars are heavier and if you tag a pot hole they don't want the wheel breaking apart and you crashing the car.

My Heliums are only rated at 500kg a piece. So 1,100lbs, and given a curb weight of 3,500 I'm not in the "danger zone" but close.

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