Toyota Auris Build Thread

[alexshock]

Originally Posted by freebeard

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

[alexshock]

Originally Posted by aerohead

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.)

[cRiPpLe_rOoStEr]

Originally Posted by alexshock

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.

[Drifter]

Hope you're doing okay

Originally Posted by alexshock

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?

[alexshock]

Originally Posted by Drifter

Hope you're doing okay

SNAFU

Originally Posted by Drifter

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.

[cRiPpLe_rOoStEr]

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.

[freebeard]

Aluminum skinned thermoplastic sheet.

[alexshock]

Originally Posted by alexshock

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:

[alexshock]

BTW, final result on the roof looks pretty good:

[alexshock]

Originally Posted by alexshock

One more segment removed with additional reduction of 79 g

Final segment: -60g.