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Author: Subject: Vinter project - +1000 hk and 300 km/t
sorens2

posted on 15/11/10 at 10:53 PM Reply With Quote
Vinter project - +1000 hk and 300 km/t

I thought it was time for a new tool in the garage.
Min. 1000 hk
Max. 300 km/t
2WD
Homemade
Just made a quick sketch.



Soren S2

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woolly

posted on 15/11/10 at 11:01 PM Reply With Quote
how about bolting the retarder direct to the wheel hub, no slip then.
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Bluemoon

posted on 16/11/10 at 12:46 PM Reply With Quote
quote:
Originally posted by woolly
how about bolting the retarder direct to the wheel hub, no slip then.


would need two of em!.. Kinda fancied having a go at this myself, after all how hard can it be.....

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Angel Acevedo

posted on 16/11/10 at 02:55 PM Reply With Quote
Is this some kind of joke?
I don't get it.





Beware of what you wish.. for it may come true....

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kipper

posted on 16/11/10 at 03:17 PM Reply With Quote
?

worizit ?
puzzled of Yorkshire

Denis.





Where did that go?
<<<<

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coozer

posted on 16/11/10 at 04:06 PM Reply With Quote
Why a new tool, have you worn out that bird yet?





1972 V8 Jago

1980 Z750

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Rod Ends

posted on 16/11/10 at 04:22 PM Reply With Quote
quote:
Originally posted by kipper
worizit ?
puzzled of Yorkshire

Denis.


It's a Swedish Vacuum Pump!

or a dyno?

Have you seen Burgerman's D.I.Y. (Inertial) Dyno for motorbikes?

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sorens2

posted on 17/12/10 at 10:47 PM Reply With Quote
Rollers. 215 kg each.






Ends for the rollers. 25 kg each.






Rotating mass now @ 1060 kg.

Soren S2

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PSpirine

posted on 18/12/10 at 12:07 AM Reply With Quote
Don't tell me you drilled those centre holes with that drill!!


Looks like a very cool project, I'll definitely be following!

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sorens2

posted on 21/12/10 at 09:53 PM Reply With Quote
Just finished prewelding the frame.
0.5 mm out diagonally.
Ill live with that.

Soren S2



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sorens2

posted on 9/5/11 at 05:10 PM Reply With Quote
Got a step further today.
Thanks for the donation of the sides.





Soren S2

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blakep82

posted on 9/5/11 at 05:13 PM Reply With Quote
awesome
but what is it? lol some sort of rolling road roller thing?





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sorens2

posted on 9/5/11 at 05:23 PM Reply With Quote
It is a dyno or rolling road.

To measure BHP and Nm on the car and faultfinding in general.

Soren S2

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blakep82

posted on 9/5/11 at 05:31 PM Reply With Quote
ah nice one
wish i had the skill to build something like that
first time i've seen this thread, but will keep an eye on it

have no idea of the mechanics of it lol.
how will it work? ie how will you get a reading from it, set it up, and how will you know how accurate it is?

[Edited on 9/5/11 by blakep82]





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don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!

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MikeRJ

posted on 9/5/11 at 06:13 PM Reply With Quote
quote:
Originally posted by blakep82

how will it work? ie how will you get a reading from it, set it up, and how will you know how accurate it is?



Inertia based rolling roads are quite simple, they are simply a set of flywheels. Knowing the moment of inertia (which can be calculated from the dimensions and mass), and having a speed sensor on the rollers you can calculate the rate of change of speed of the rollers and work back to power input with some relatively simple maths.

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coyoteboy

posted on 9/5/11 at 06:25 PM Reply With Quote
Couple of things you'll need to think hard on - grip material (even pro roads seem to struggle with this at times). Would it not have been easier to buy a bus retarder and not use flywheel's (so you can do steady-state tuning)?
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sorens2

posted on 9/5/11 at 07:53 PM Reply With Quote
The idea of an inertia dyno is quite simple wich I prefer.
I dont have the money to just buy stuff so I have to make it myself.
And homemade things are always better. :-)

Soren S2

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sorens2

posted on 6/5/13 at 05:21 PM Reply With Quote
2 years in the build.

Finally getting there.
Did 130 mph today.



[Edited on 6/5/13 by sorens2]

[Edited on 6/5/13 by sorens2]

[Edited on 6/5/13 by sorens2]

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sorens2

posted on 23/5/13 at 06:35 PM Reply With Quote
218 bhp and 440 Nm in a 1.9 TDI Altea.

https://www.youtube.com/watch?v=knW-R1uWxdw

[Edited on 23/5/13 by sorens2]

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