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Old 03-10-2022, 01:02 PM   #61 (permalink)
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Originally Posted by freebeard View Post
The price has reached an historic high, but people should be most concerned about fertilizer and wheat.
Yes, true)) wheat will be a realy big concern. I had not mentioned it here because the focus of this forum is fuel

I have just visited the pump:
Price is $1.54/L, (95) while it was $1.26/L before the war.
Also, now we have a limit of 20L per one person at a time. It is risky to benefit from driving with almost empty tank

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Old 03-10-2022, 01:07 PM   #62 (permalink)
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1) I left my workbook at home, but I believe that for the New European Driving Cycle, a 10% change in weight equates to approximately 1.5% change in fuel economy.
2) In the USA, EPA fuel economy testing is done with 300-pounds ( 136-kg ) added to the vehicle.
3) The Auris is reported with a curb weight from 1190-kg, to 1480-kg.
4) So a 10% weight reduction would be 119-kg, to 148-kg, to see a 1.5% difference.
5) Or 79.33-kg, to 98.66-kg to see a 1% change.
My Auris is a hybrid - the heavies one, 1480 kg.

It does not work IRL. I have a clear pattern of driving alone and with my wife. The difference is 0.5L/100km in the city - this is about 10%. (May be due to hilly terrain.)
(There is no difference on the highway.)
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Old 03-11-2022, 12:42 AM   #63 (permalink)
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Quote:
Originally Posted by alexshock View Post
now we have a limit of 20L per one person at a time
Maybe if you could ride a small-displacement motorcycle it would be easier to overcome this issue, assuming you won't be able to mod your Auris to the point it would have the same fuel consumption of a Honda CB 125 or Yamaha YS 125.
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Old 04-10-2022, 11:20 PM   #64 (permalink)
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Hope you're doing okay
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Originally Posted by alexshock View Post
2. Did fitment check with PVC model. It is almost perfect. Created holes for factory fasteners.







3. Put OEM plastic undertray until I will build custom one.
Any issues with heat from the catalytic converter?
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Old 04-11-2022, 07:32 AM   #65 (permalink)
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Hope you're doing okay
SNAFU

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Any issues with heat from the catalytic converter?
Unfortunately, project is now going much slower than it was planned - I have not yet complete installation, this is just a mock up.
What you see on images above is just a front part that is exactly stops before catalytic converter. So, there should be no heat issues. I'm planning to cut it from plywood - if everything will be fine, I'll replace with some sort of composite (GFRP).

The rear part is not yet ready, but I'm planning to create 2 separate parts for the left and right side. What about catalytic converter and pipes - it will remain open. Probably, it could be covered with aluminum plate with some naca-ducts for ventilation, but I will test carefully before.
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Old 04-12-2022, 01:17 AM   #66 (permalink)
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Maybe it would be worth to use plywood and not switching to GFRP. IIRC plywood had been widely used for making underbody protections for rally vehicles.
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Old 04-12-2022, 04:07 AM   #67 (permalink)
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Old 05-08-2022, 10:55 AM   #68 (permalink)
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Antenna Segment #2

Quote:
Originally Posted by alexshock View Post
Replaced shark-fin antenna with a small block-off.
Now I cannot listen to FM/AM radio, but I don't care.

OEM fin weight is 238 g.
Block-off weight is only 8 g.

I have removed only 1 out of 3 antenna cable parts, so there will be more work.

Block-off is taken from US/MEX WV Jetta. It perfectly fits into Toyota's roof-hole.
One more segment removed with additional reduction of 79 g

Before / After:


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Old 05-08-2022, 10:57 AM   #69 (permalink)
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Roof Antenna (Block Off)

BTW, final result on the roof looks pretty good:


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Old 05-22-2022, 12:45 PM   #70 (permalink)
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Quote:
Originally Posted by alexshock View Post
One more segment removed with additional reduction of 79 g
Final segment: -60g.

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