Toyspeed.org.nz Message Board

by **gasman** » Mon Mar 10, 2008 10:36 pm

give me your broken car parts and ill figure out how it failed for my uni project. some of the tests performed will be hardness testing and electron microscope scanning. At the end of it you will have a full professional engineers report with estimates forces at failure and conditions.

some good and interesting failures are fatigue failures in steel shafts or similar.

some requirements are that the fracture surface cannot be corroded (badly) because once you stick it in the electron microscope it will BURN, limited to mainly steel and aluminium parts because they are more interesting and i can write more crap on it.

what i need from you:

-broken part (preferably both pieces)
-details on when and how it failed

oh btw im in chch at the moment so would prefer to pick up broken parts unless you got something really cool that broke then ill fork out some money for shipping

by **Wildcard** » Mon Mar 10, 2008 10:51 pm

Awesome idea.... support this man!

by **Trls250s** » Mon Mar 10, 2008 11:03 pm

Did the same thing for my engineering degree. Its cool shit.

Good luck with the project man.

Also have you studied advanced thermodynamics? I thought gas turbine engines was an aewsome subject and would have persued aeronautical engineering if i hadnt gotten sick.

by **postfach** » Mon Mar 10, 2008 11:19 pm

You should get in touch with audi man and see if you can get one of his broken diffs, would be interesting to see the numbers causing those to break.

by **gasman** » Mon Mar 10, 2008 11:21 pm

Trls250s wrote:Did the same thing for my engineering degree. Its cool sh*t.

Good luck with the project man.

Also have you studied advanced thermodynamics? I thought gas turbine engines was an aewsome subject and would have persued aeronautical engineering if i hadnt gotten sick.

yea we've looked into gas turbines but we didnt get to see one going in the labs because it was broken at the time.

also forgot to mention that we also can figure out what specifically what the alloy composition is of a metal and if it is forged or cast etc, so if anyone has any cracked 4agze pistons I could put the endless debate on weather its forged or cast to rest.

by **matt dunn** » Mon Mar 10, 2008 11:46 pm

Will we get the parts back?

we have the two 1/2's of the input shaft for the hollenger sequential gearbox that we shattered. There are bits missing from the centre, cause it did actually shatter, rather than snap.

Also may have one of the snapped axels from the car too,
if that would be any good.

by **Lloyd** » Tue Mar 11, 2008 7:33 am

And your flywheel bolts Matt

by **Infinite** » Tue Mar 11, 2008 7:38 am

pity i dont have my 3sgte engine anymore

it snaped the hanger bracket off the block....

by **Bazda** » Tue Mar 11, 2008 7:40 am

I figured out those flywheels bolts bottomed out in the crank. As I looked at mine from when wayne had the engine, the flywheel bolts were cut down. I also tried to install some 4age ones and some did manage to grab the flywheel just, others didnt quite make it.

I have a few fwd driveshafts that i've snapped.

by **RunningRich** » Tue Mar 11, 2008 9:01 am

You forgot to mention one important thing. Don't touch the two broken halves back together again!! You smear the damage.

Does your SEM at Auckland uni determine Carbon content?

no grip · by **Akane** » Tue Mar 11, 2008 11:21 am

I'd give you every part I have and the result will be the same - user error.

by **IH8TEC** » Tue Mar 11, 2008 12:07 pm

Akane wrote:I'd give you every part I have and the result will be the same - user error.

by **Mr Revhead** » Tue Mar 11, 2008 12:23 pm

gasman wrote:so if anyone has any cracked 4agze pistons I could put the endless debate on weather its forged or cast to rest.

thats been done

by **gasman** » Tue Mar 11, 2008 4:16 pm

Mr Revhead wrote:
gasman wrote:so if anyone has any cracked 4agze pistons I could put the endless debate on weather its forged or cast to rest.

thats been done

what were the results?

by **Mr Revhead** » Tue Mar 11, 2008 4:29 pm

hyperutectic forged pistons
a guy on toymods with access to fancy microscopes and whizzymajiggys test them

which reminds me.... i'll link them into our FAQs tonight

by **CAMB01** » Tue Mar 11, 2008 7:32 pm

i only hav one broken bit, and its not very exciting. 1st gear broke a tooth off grudge racing at the drags. Launched from 8000rpm

by **xsspeed** » Tue Mar 11, 2008 10:25 pm

Mr Revhead wrote:hyperutectic forged pistons
a guy on toymods with access to fancy microscopes and whizzymajiggys test them

which reminds me.... i'll link them into our FAQs tonight

sh1t its been too long since i did chemmat101 in my first year of eng, anyone wanna give laymans terms for how you get to the hyoperutectic zone of the chart thing, crao cant even remember the name, i'll go get my old textbook and post it up unless someone beats me

by **gasman** » Tue Mar 11, 2008 10:42 pm

xsspeed wrote:
Mr Revhead wrote:hyperutectic forged pistons
a guy on toymods with access to fancy microscopes and whizzymajiggys test them

which reminds me.... i'll link them into our FAQs tonight

sh1t its been too long since i did chemmat101 in my first year of eng, anyone wanna give laymans terms for how you get to the hyoperutectic zone of the chart thing, crao cant even remember the name, i'll go get my old textbook and post it up unless someone beats me

for hypoeutectic in aluminium it's less silicon than the eutectic composition (%12.6) and hypereutectic is more than the eutectic composition.

by **gasman** » Tue Mar 11, 2008 10:43 pm

matt dunn wrote:Will we get the parts back?

we have the two 1/2's of the input shaft for the hollenger sequential gearbox that we shattered. There are bits missing from the centre, cause it did actually shatter, rather than snap.

Also may have one of the snapped axels from the car too,
if that would be any good.

got pictures of the axel?

by **fivebob** » Tue Mar 11, 2008 11:14 pm

Mr Revhead wrote:hyperutectic (semi-solid) forged pistons

Toyspeed.org.nz Message Board

GIVE me ur broken bits and ill find out how it (epic) FAILED

GIVE me ur broken bits and ill find out how it (epic) FAILED

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