AndyC_772

iTrader: (2)

Just after an opinion from anyone who has had forged pistons fitted to their car:

With a bore clearance of about 2.5 - 2.8 thou, should I expect a 2.0 STI engine to sound, when cold:

a) barely any different to a standard one
b) a bit rattly, but unlikely to wake the neighbours or frighten off potential buyers when the car eventually comes up for sale, or
c) like a tractor with a sump full of marbles?

Ta
Andy

AndyC_772

iTrader: (2)

Also: what's the consensus on strengthened con rods - a good idea even on a car likely to remain standard or mildly tuned, or not worth paying for?

Broxi

iTrader: (11)

2.5 - 2.8 I would expect Piston Slap.... Are you planning on running NOS? If not then i would not go more than 2 Thou. Even at 2 Thou you will get piston slap when cold.

I would say even at 2.8 Thou it would not wake the neighbours.

Personally I would NOT do an engine build for myself without fitting uprated Rods... even if it was to remain mainly Standard.

AndyC_772

iTrader: (2)

Lol No NOS, just considering my options, and clearly stronger is better.

What about oil consumption? Any other downsides?

STI_Baly

iTrader: (23)

Depending on your clearances again the oil consumption should not be much of a problem.

Just remember when it comes to selliing this motor a lot of people will not be able to work out why you didn't uprate the rods (i.e doing the pistons and rods is a good selling point) Make sure you take pictures of all the work done to the engine though, or ask your builder to do for you as a lot of people lie.

Good Luck

ZEN Performance

2.5thou is pretty damn quiet, oil consumption depends a lot on the type of pistons, we have had good success with Mahle pistons being very good for low oil consumption.