What'd you do to your car this week/weekend?

siren676 · Post by **siren676** » Tue Nov 20, 2012 7:22 pm

Snapfrozen wrote:You only need to do this to get it certed.. Maybe a car club adjustable set of arms? Each person puts in 40 bucks and we get 1 set to ship around the country, adjust, cert, put factory back in

Nah the adjustable arms will be listed on your cert plate and by removing them you will have made your car illegal again

dylann · Post by **dylann** » Tue Nov 20, 2012 9:09 pm

Started on the sub/amp install in the boot. No fucking way the box would fit so i started on making a small one to fit in the corner opposite the battery. The cardboard box model went well but still fine tuning the wood version, but its basically a trapezoid.

An 8" sub will fit with room to spare but I have a 10" so that will be squished in there. Will post the finished result once it eventuates

Snapfrozen · Post by **Snapfrozen** » Tue Nov 20, 2012 10:17 pm

siren676 wrote:
Snapfrozen wrote:You only need to do this to get it certed.. Maybe a car club adjustable set of arms? Each person puts in 40 bucks and we get 1 set to ship around the country, adjust, cert, put factory back in
Nah the adjustable arms will be listed on your cert plate and by removing them you will have made your car illegal again

Paint your factory arms and no one will knows

Bwarp · Post by **Bwarp** » Tue Nov 20, 2012 10:27 pm

siren676 wrote:
chris wrote:Ah!!! That makes sense

So basically for the rear we are allowed 1.38 degrees.

Welll, That sucks balls.
nah we are allowed 0.5º outside of factory tolerances so 1.88º

Im 0.12º outside of that and dont have a print out so looks like im going to have to get it raised and re-aligned to meet the specs.

There's no such thing as 1.88degrees. Based on the table posted your maximum allowed would be 2.08degrees.

1.08 deg maxium + 0.30deg manufacturer tolerance + 0.30deg cert tolerance = 2.08deg if my maths isnt up to fux.

There's 60 'minutes' in 1 degree.

Furai · Post by **Furai** » Tue Nov 20, 2012 10:34 pm

Bwarp wrote:
siren676 wrote:
chris wrote:Ah!!! That makes sense

So basically for the rear we are allowed 1.38 degrees.

Welll, That sucks balls.
nah we are allowed 0.5º outside of factory tolerances so 1.88º

Im 0.12º outside of that and dont have a print out so looks like im going to have to get it raised and re-aligned to meet the specs.

There's no such thing as 1.88degrees. Based on the table posted your maximum allowed would be 2.08degrees.

1.08 deg maxium + 0.30deg manufacturer tolerance + 0.30deg cert tolerance = 2.08deg if my maths isnt up to fux.

There's 60 'minutes' in 1 degree.

What? 360 degrees in a circle, you can get .9 of a degree...

Bwarp · Post by **Bwarp** » Tue Nov 20, 2012 10:40 pm

Google it bro. There's 60 'minutes' in a degree.

Degrees measure an arc. A circle has 360 degrees which is purely a measurement done on the circle, in degrees. A circle having 360 degrees doesnt dictate how many minutes are in one single degree.

siren676 · Post by **siren676** » Tue Nov 20, 2012 10:41 pm

math fail, ive been outside of school for too long. Think bwarps right, according to google 1 degree=60 acrminutes

edit bah beaten to it

Bwarp · Post by **Bwarp** » Tue Nov 20, 2012 10:43 pm

http://mathforum.org/library/drmath/view/65468.html

/Nerd moment right now.

chris · Post by **chris** » Tue Nov 20, 2012 10:45 pm

ahhh ok

-2 sounds a bit better

Furai · Post by **Furai** » Tue Nov 20, 2012 10:47 pm

Bwarp wrote:Google it bro. There's 60 'minutes' in a degree.

Degrees measure an arc. A circle has 360 degrees which is purely a measurement done on the circle, in degrees. A circle having 360 degrees doesnt dictate how many minutes are in one single degree.

Nothing to do with time, hence cars running .88 degrees or 1.9 degrees.

Furai · Post by **Furai** » Tue Nov 20, 2012 10:49 pm

Astronomy uses arcminutes not camber.

siren676 · Post by **siren676** » Tue Nov 20, 2012 10:55 pm

Taken directly out of the lvvta cert info sheet

http://www.lvvta.org.nz/documents/infos ... _Guide.pdf

Agreed negative camber maximum limits:
The resulting negative camber maximum limit that has been adopted is as follows:
A front or rear suspension system in a low volume vehicle must incorporate no more than half a degree (0 degrees 30mins/0°30’) more negative camber than that specified by the vehicle manufacturer.

Bwarp · Post by **Bwarp** » Tue Nov 20, 2012 10:59 pm

Thank you siren. Half a degree is 30 minutes!! Meaning you cant have 88 minutes because 88 minutes is 1 degree and 28 minutes.
Angles are measured in degrees, minutes and seconds.

It's all through the guide on lvvta about how to measure camber for cert.

Furai · Post by **Furai** » Tue Nov 20, 2012 11:00 pm

siren676 wrote:Taken directly out of the lvvta cert info sheet

http://www.lvvta.org.nz/documents/infos ... _Guide.pdf

Agreed negative camber maximum limits:
The resulting negative camber maximum limit that has been adopted is as follows:
A front or rear suspension system in a low volume vehicle must incorporate no more than half a degree (0 degrees 30mins/0°30’) more negative camber than that specified by the vehicle manufacturer.

Notice its in brackets because it would be secondary measurement.

Try calculating a triangle and work out your camber with arcminutes, complicates the hell out of it hence why you dont see it on spec sheets.

Bwarp · Post by **Bwarp** » Tue Nov 20, 2012 11:03 pm

Furai, just read the lvvta info sheet oncamber. It shows that they do measurements in degrees and minutes the whole way through.

If you are talking about 0.88 of 1 degree you are talking about converting a decimal to a minute, which is not how lvvta rolls.

Or anyone rolls for that matter.

Furai · Post by **Furai** » Tue Nov 20, 2012 11:04 pm

You can measure it that way yes. But thats dividing each piece of cake into 60 pieces instead of 10. Making calculations crazy.

siren676 · Post by **siren676** » Tue Nov 20, 2012 11:06 pm

Furai wrote:...
Try calculating a triangle and work out your camber with arcminutes, complicates the hell out of it hence why you dont see it on spec sheets.

What kind of triangle?

Furai · Post by **Furai** » Tue Nov 20, 2012 11:14 pm

Ill run with what Ive always used, (In RC racing, Gokarts etc) which is measuring in 10s to make it easy and logical.

Just one of the examples.
http://949racing.com/miata-race-alignment-info.aspx

Bwarp · Post by **Bwarp** » Wed Nov 21, 2012 8:40 am

Seems to make it more confusing. It's like trying to divide time into decimals.

"I'll be there in 0.30 of an hour"

"Oh cool, see you in 30minutes"

"No no, 0.30 of an hour, so 18 minutes"

"Wut?"

"Oh don't worry, I'll see you in 18 minutes"

Timmo · Post by **Timmo** » Wed Nov 21, 2012 8:50 am

On a related....but not really related note: Decimal hours are useful in aviation though- Makes working out Time/Distance/Speed equations far easier. 0.1 hours = 6 minutes etc

siren676 · Post by **siren676** » Wed Nov 21, 2012 1:55 pm

Today I thought it would be funny to see whether I could get the car into the garage with the door half up. It was a success

tomtikki · Post by **tomtikki** » Wed Nov 21, 2012 2:31 pm

U'll be changing lanes under truck trailers next!

dylann · Post by **dylann** » Wed Nov 21, 2012 4:02 pm

I like your house.

Furai · Post by **Furai** » Wed Nov 21, 2012 4:50 pm

Bwarp wrote:Seems to make it more confusing. It's like trying to divide time into decimals.

"I'll be there in 0.30 of an hour"

"Oh cool, see you in 30minutes"

"No no, 0.30 of an hour, so 18 minutes"

"Wut?"

"Oh don't worry, I'll see you in 18 minutes"

Great for time, not for triangles and Camber

Angreal · Post by **Angreal** » Wed Nov 21, 2012 7:35 pm

Woot - Got my hands on a 3.6 ratio diff. Will put this in when the OS Giken (found me a Japanese mechanic who says it's pronounced Gee (as in Geese) - Ken (as in Ken)) goes in.

Guess it'll kill my acceleration and speedo until the car is completely setup (well speedo will still be out but meh).

What'd you do to your car this week/weekend?

Who is online