crumpet

By using old engine oil and heating them up red/white hot will make them stronger but more britlle apparently? sounds stupid to me

Chip

iTrader: (3)

I wouldnt personally be attempting pikey heat treatments on conrods TBH

De-seaming them and then getting them shot peened can improve their performance though.

But TBH with most engines now having 300 quid chinese steel sets available its not worth doing, my corsa has rods that are proven to be improvable by the techniques I have just mentioned but I just chucked some cheap steal ones in instead of bothering as they work even better (although still arent arrow sort of quality of course!)

stevieturbo

What engine and have you ever broke a conrod ?


I can only imagine most such DIY attempts fucking them right up.

crumpet

i havent broke a rod (in all my years of too much boost+fuel+revs) YET and dont want to lol some lad was talking to me about it on facebooke

stevieturbo

internet mechanics are bad....but now facebook metallurgists !! lol

ZetecNology

I've actually snapped a rod before, only once mind... Buutttt it was thrashing a cammed 1600 cvh mk2 fiesta down the A19 with a 1.0 box on it

carcollector

load of bullshit.... heat treatement can only be done by professionals, not by amateurs.

you wouldnt even know what material u got so how are u trying to figure out what treatement it needs ? u dont know, simple as.

crumpet

Pmsl id never do it, sounds fucking stupid to me as your making the rod red hot(making it weaker just by that) then putting it in oil to try and make it harder, wouldnt it just crack when put in the oil anyway?

Eagle

iTrader: (2)

yeah it does work by that theory.. but then you have to anneal it to make it harder .. heat treatment just alligns the particles .... annealing or tempering is the key to it working correctly .. and thats the hard part .. the right ammount of heat for the right ammount of time ..
not really a diy job...

stevieturbo

Although it might work if you drill holes in it first, to allow the oil more access to the material, plus it will lighten them

xr2wishy

iTrader: (2)

tell you what, that sounds as good as this old nugget:
http://www.audiforums.com/forum/showthread.php?t=80267

DIY, not the greatest idea for amateurs.

Chip

iTrader: (3)

liam-rst

iTrader: (1)

thats gotta be a fookin wind up

stevieturbo

the internet is as real as it gets.

Chip

iTrader: (3)

Well what would stevie know? He's only built a granada that does nearly 200mph after all

Here he is, sharing his top secret tips with you and you mock him for it

I dont know why you bother giving out such great advice stevie, its wasted on these clowns!

liam-rst

iTrader: (1)

not the fuckin conrods numbnuts that post on the audi forum

Chip

iTrader: (3)

I was joking by the way!

DONT drill holes in your fucking rods for god's sake

liam-rst

iTrader: (1)

lol i wouldnt do that either anyway, an i can never tell with you if your being serious or not lol

Chip

iTrader: (3)

I wouldnt normally joke on a technical thread, but I thought in this instance it was obvious stevie was messing about.


Serious answers just to avoid any confusion:

Heating and immersing in oil CAN help, but it needs to be carefully controlled I wouldnt try it at home

Dressing the seams back carefully and smoothing the rod finish over and then shot peaning can help and is DIY-able

Drilling holes in them to lighten them isnt a good idea

stevieturbo

ok....what about drilling holes in the piston ? Reduces weight and lowers the compression ratio for more boost

Chip

iTrader: (3)

I think someone has been drilling holes in your head

stevieturbo

hey, if you read it on the internet, it's fact !!


I was lost until I realised this !!!


and lets face it, if people are dumb enough to believe it....at least take a video of the results for youtube

Chip

iTrader: (3)

You're just an over grown mischeavious lepricorn at heart arent you mate?

ECU Monitor Enthusiast

iTrader: (1)

LOL at this whole thread