It's probably a good 6 months before I'll have enough money to start rebuilding my engine, but I just got home from school and have over a month of tons of free time, so I thought it'd start posting
When all is said and done I will probably be running around 17 psi, will have a larger T3/T4 turbo, cobra MAFS, re-tuned JWT ECU, 550 cc injectors (?? Haven't done any research on this stuff...this is all down the road--first the engine rebuild). I'll be looking for at least 330 RWHP or so...I keep the projected #'s conservative so that I don't become disappointed.
has these new "supertech coated racing pistons" that sound pretty damn nice...and they're the exact CR I was looking for (9:1).
So I'm asking all you people out there with experience/knowledge to tell me your opinions of these pistons (Ivan, WDRacing, etc).
The following is the description of them from the website:
"The long awaited Supertech forged pistons are finally here! This set of 4 phosphate coated forged pistons come complete with Chrome Moly steel wrist pins, wire clip locks, and specially designed gas nitrided rings for high levels of forced induction and nitrous oxide applications. The gas nitrided rings included with this set are the very best and strongest currently available on the market! Furthermore, these pistons have extra thick ring lands to handle extreme use. The Supertech pistons are currently in stock and ready to ship.
Supertech incorporates more than 35 years of experience in the design of racing pistons with the utilization of the latest CAD software & Finite Element Analysis. These pistons are manufactured from extruded high-silicon enhanced 4032 alloy (with additional Cu, Ni & Mg) which has low thermal expansion, excellent wear resistance and higher thermal conductivity. Because of the low expansion alloy used, these pistons can be installed with tighter piston-to-wall clearance than conventional forged pistons, resulting in an exceptionally quiet engine due to reduced piston slap.
The 3 forging step process used yields a fine structural grain oriented in fibers in the same direction of the stresses. Several heat treatments provide the piston with a high tensile strength and evenly distributed hardness. These pistons are then submitted to several machining steps in specially designed machines and in conventional CNC machines with special diamond tools for dimensional precision, perpendicularity and flatness of the ring grooves. The pistons also feature contact reduction grooves, and have honed & reamed pin bores for precise fit. The wrist pins are constructed of cold extruded Chrome Moly steel for exceptional strength. Quality control is performed after every step of the manufacturing process in climate controlled environments to ensure reliability of dimensions."
That's a helluva description, but you get the idea....
How would these compare to Ross 9:1 pistons, which are almost the exact same price w/o the high-tech "supertech" coating...EDIT..just realized they don't offer 9:1 ross pistons on that site...does Ross make 9:1 for the KADE or just 8.5?
And finally, how would the supertechs compare to the Arias forged pistons (8.8:1)...or any other forged pistons for that matter (as close to 9:1 as possible)
I know it's sort of an invalid comparison because they all have different CRs, but I'd rather have the 9:1's because I want the off-boost driveability...But what I basically want to know is what the opinion is for the BEST, longest-lasting, best manufactured, strongest, most successful forged pistons they are for around ~330rwhp for the KA. I haven't seen any all-out comparisons on the best pistons for the KA-T, so start posting your views/experiences!