im talking about milling out my own pistons, im wanting to work with some different piston face designs along with it being ribbed in the bottom section like an F1 piston so it can be lighter but retain the strength it should carry for a reliable maybe 200HP 300tq 300For your specified application, you can use a 4032 alloy forged piston.
They are eutectic for good thermal expansion control and are more malleable than a hypereutectic piston.
As a forging, they will offer the extra margin of strength.
Autotec/Racetec offer custom 4032 alloy forged pistons.
You can also check with Mahle, Diamond, BWE and JE.
What do you need for a piston head design?
The Autotec pistons for the 300 six are ribbed similar to an F1 piston.im talking about milling out my own pistons, im wanting to work with some different piston face designs along with it being ribbed in the bottom section like an F1 piston so it can be lighter but retain the strength it should carry for a reliable maybe 200HP 300tq 300
Im shooting to mill out billets for my engine to get a good feel for it, i plan to make my own i6 casting and head casting as a 2.0 version of the 300 like how the 350sbc evolved into the LS 5.3The Autotec pistons for the 300 six are ribbed similar to an F1 piston.
The stock pre 1987 pistons and pin weigh about 820 grams.
The 300 six Autotec piston and pin shown below weighs 574 grams.
As Firepower stated above, pistons at room temperature are not round and they are wider at the bottom of the skirt than at the head.
Going with a sohc design along with shooting for better fuel economy, and also beef up the block i would like to do a 4.25 bore by 3.98 stroke and run a sleeve for 4.0 boreI think you should work on the “big picture”. 4,000 rpm at 100% VE only needs a head to flow 180 cfm. Any ford 300/ 240 head will make that easy with some minor hand work. Why reinvent the wheel?
The peak piston velocity occurs at 74 degrees before and after TDC.I think you should work on the “big picture”. 4,000 rpm at 100% VE only needs a head to flow 180 cfm. Any ford 300/ 240 head will make that easy with some minor hand work. Why reinvent the wheel?
Edit: 4,000 rpm at 100% VE needs 160 CFM.
The peak piston velocity occurs at 74 degrees before and after TDC.
At that point the 300 six piston is traveling 4378 ft/sec. at 4000 rpm
The piston displacement at that point is 380 cfm.
PN managed 338 ft lbs in the video posted in the Big Six section.1.25lb/ft @2500 NA on gasoline, with 50ci cylinders? Seems pretty optimistic, even if you have obtained thabilities/facilities to carry out such lofty goals of designing, casting, machining a clean-sheet cylinder head...