I just the ACL Race series pistons in my car for the RB30DET with 25 head and they are good. they are acually a MAHLE piston imported from the usa by ACL because it costs too much to make forgies in australia. I think MAHLE are the same brand as ROSS ?
my compression test came up at 120 in all cyl so its a little lower then before but good for high boost =)
i used the precision motorsport conrods in my engine as well which they all come out of the same factory in china (scat eagle rah rah) they do well for what they are (can handle 700rwhp) without any issues
url for my conrods
http://www.tweakit.net/shop/product_info.p...roducts_id=5878
Precision H-Beam Forged Rods - Nissan Skyline RB30/ Holden VL Commodore (set of 6) $1,150.00AUD (inc GST)
$1,045.45AUD(ex GST)
$1,020.00AUD (inc GST)
$927.27AUD(ex GST)
Forged Conrods are a must for a bullet proof rebuild on your turbocharged engine. This allows the stress to be taken off the bottom end under high rpm and high boost. Of course forged pistons are not essential, but are highly recomended.
Precision Motorsport rods are manufactured from certified 4340 steel, vacuum degassed to remove impurities, and multistage heat treated. Each forging is X-rayed, and shot peened to relieve stress, and all surfaces are 100% machined.
H-Beam Connecting Rods Feature:
NEW 4340 Certified Forged Steel Rod
ARP 5/16 2000 capscrew bolts standard
Silcone Bronze bushings for floating pins
Precision alignment sleeves positively locate the rod cap, eliminating cap walk
Packaged in weight matched sets end to end +/- 1 gram
Rated for upto 750 horsepower (Same as the limit of the factory RB30 Crankshaft)