Anyone ever thrown a rod?
 

A few years back in the good old days of the internet, probably way before most of you kiddies ever knew what an S12 was there was some pics on Datmans site of some CA18ET's that have thrown rods. It was said at the time this was a major weakness of the engine.

I can't really comment much on standard engines as other than my first S12 which I had for 6 months I've only ever ran DET rods in the ET.

But the thing is, I haven't heard of anyone chucking a rod for many years :confused:

I can only think that the engines that threw them were mk1's without the 6.5k limiter, or maybe the lighter Scimitars made it easier to over rev them.

Anyone been unlucky then?

I've thrown a rod twice but never in a et once in an old "Y" reg 1.6 Honda Accord and once on a CA18DE never heard of a ET throwing one.

i asked this question too my dad, and when he was in the army in the 80's a mate of his had an s12, a mk1, and he thinks he thru a rod, tho the car was ragged 24/7,

i dont know of anyone throwing them in the last 6 years either, ive conflicted this rumour before on sxoc quite a few times. Also i spoke to datman about this years ago. He agreed after discussion that it wasnt entirely the engines fault but i wont say much more on it.


kenn finns still on standard rods and so was adz, and adz liked to drive his hard and high in the rpm, he also had the piper cam. There good examples for the engines strengths i recon

They are a bit thinner that the DET rods, I'll show a pic I took, but yeah it seems odd that they don't throw them anymore :confused:

It must be down to revs I imagine as the stress will increase exponentially.

The only one I know that has thrown a rod was down to a spun big end and the owner (Neil) didn't give a crap about the car, but this would have thrown any sized rod in the end.

Will took me out in the 120y and he likes his revs more than i would.

Steel rod on left, DET rod in middle and ET rod on right.

If the DET rods can deal with 370bhp then the ET rods probably close to 270-300 at a guess

http://img.photobucket.com/albums/v2...2032008126.jpg

if so then the pistons are actually weaker then as i doubt they would survive running that much power.



what steel rods are they? they look pretty tough

Some nutter on sxoc is running nearly 400bhp on a std bottom end. He does intend to blow it up though.

Thats made by Pauter that steelie.

i can remember seeing the pic of that block that threw a rod years ago, it will defo be revs that feck rods up, i've never thrown a rod on a std engine, although i felt like throwing an old fj rod at the dog this afternoon, the cnut wun't stop barking.:D

i got my car in 99' because of a thrown rod, my mate had it at the time, big hole in the block, i bought the car, and a second hand engine. mine is also without the rev limiter.

ahh also the engine that threw the rod, was put together by none other than mr pete rosenberg.

so could have been a weakness there. :D

PMSL proper funny, i laughed whilst drinking coffee, now all over screen..

never heard of or seen thrown rod in the scimitars but they came from the factory with bluebird ecus with the limiters. before i bought my current car, the guy had SE build the engine with std rods but JE pistons and he revved to 7,5k on track all the time, upping the aftremarket limiter to 8,5k on certain tracks:eek: it ran like that for 4 years but the engine gave up on me 6 months into my first season with the car. i revved it to 7.5k which in hindsight was too much for the valve train not the rods.
ive seen a few scim engines go bang through valve retainers breaking the end off the valve and dropping the valve, grenading the engine (thats what killed my original and teh Graham Walker scim race car engine too (with titanium retainers. i use DET Pauters and modfied DET wisecos pistons in current engine and set limiter to 7,2k to save valve train

where did you get the titanium retains from for the et craig ?

i didnt have titanium retainers but the walkers engine had originally. i believe Oselli Engineering did most of the engine work on that car and made them as one-offs. cant iamgine how much they would have cost:eek:

Last ET throwing a rod I can remember is Eddie Ratdats in a Nissan Parie, actually that threw two rods, but it was ragged hard, can't rember if it was a mk1 or 2 lump though.

Thrown rods
 

This is my second engine running 205 at the wheels and now 212 at the wheels on a bar of boost revving it to in between 6500rpm and just under 7000rpm and touch wood its been fine,The guy who mapped used to hit the limiter coming down the box!!! it did strip the thread on the allen headed bolt at the back end of the cam. Any engine i have built up on the silvys ,have never seen any signs of weak rods etc but i have put holes in a couple of pistons in the old days, the cause was a nipped fuel pipe under the fuel filter or too much boost lol, Guy called David used to be on here had 200 ish at the wheels and 100 shot of nitrous:D :D fooking nutter and it never had a problem as far as i remember he was on standard bottom end i think.
Would be interested to see how much power the rods would take ???:D :D

wack a direct port wet nitrous kit on it and see kenn