26-11-2015, 07:29 PM
The modern stock rods are considerably stronger than OEM xud style rods...
As far as I can see, PSA have retained the same design, and kept making the rods stronger and stronger as the engines have got more powerfull...but only made one set of rods at any point in time...Hence the 8v hdi in the 306 rods, although are stronger, arnt hugely stronger...but the more modern 8v hdi rods are much thicker, the same as the "16v hdi" rods...because there the same things..Obviously at x point in time they just started using the stronger rods in the new more powerfull engines, and for cost used the same rods in everything else...
Basically the newer the rods the better your chances, I have personally seen 3 different physical style of "HDI" rod..and wouldn't surprise me if there are more..
The way I see it is if the engines in bits, and you are on a super budget, if you can get hold of HDI rods for very cheap, its worth dropping a set in...for everyone else who just wants to play with big power as a toy, 400 chinky rods.. Would I use them? No...I dont like the way there designed, and I wouldn't trust them in a motor I spent many hours and invested many dollars into building... However if i was just setting out / playing with big turbos on a little 306 or something and just wanted something that would take the abuse for a good period of time and largely not have to worry, yes, its exactly what Id buy....But to me its worth the extra 300 quid all day long to have something thats built how I want it / I have faith in.
As far as I can see, PSA have retained the same design, and kept making the rods stronger and stronger as the engines have got more powerfull...but only made one set of rods at any point in time...Hence the 8v hdi in the 306 rods, although are stronger, arnt hugely stronger...but the more modern 8v hdi rods are much thicker, the same as the "16v hdi" rods...because there the same things..Obviously at x point in time they just started using the stronger rods in the new more powerfull engines, and for cost used the same rods in everything else...
Basically the newer the rods the better your chances, I have personally seen 3 different physical style of "HDI" rod..and wouldn't surprise me if there are more..
The way I see it is if the engines in bits, and you are on a super budget, if you can get hold of HDI rods for very cheap, its worth dropping a set in...for everyone else who just wants to play with big power as a toy, 400 chinky rods.. Would I use them? No...I dont like the way there designed, and I wouldn't trust them in a motor I spent many hours and invested many dollars into building... However if i was just setting out / playing with big turbos on a little 306 or something and just wanted something that would take the abuse for a good period of time and largely not have to worry, yes, its exactly what Id buy....But to me its worth the extra 300 quid all day long to have something thats built how I want it / I have faith in.
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