November 3, 20187 yr Omega group n pistons into wrx ej20g build what’s needed ? Thanks Sent from my iPhone using Tapatalk
November 5, 20187 yr You really need to be a bit more specific, What's the aim of the build? what other parts have you got to go in, may give people a starting point with the help your require Sent from my SM-G960F using Tapatalk
November 5, 20187 yr Author So far I’ve collected .... 75mm nitrated crank Arrow rodsAcl bearings Owen development gt30 based turbo Magnex full exhaust system decat 900cc Lateral injectors parallel Fuel lab fpr V3-4 sti heads Lightweight pulleys 12mm modified oil pump Exeedy organic clutch and lightweight flywheelOil catch can 6speed non dccd box Link g4 ecu RCM headers and up pipe Would these omega group n pistons run with that set up ? Is that more specific Sent from my iPhone using Tapatalk
November 5, 20187 yr Whats you target hp and what's the car gonna be used for ? I've never personally used the omega pistons before ,so without knowing much about their spec , im afraid i can't help there . but i have used mahle pistons. They do 2 main types forged (good for 500 hp) and race (good for 750 hp) . I've always got my engineer to check the bores for ovality and taper ,then decided whether the bores just need a hone or a 0.5 mm overbore (with oversized pistons) to be within spec . You probably already know but If you intend on using a ej20g cdb you'll need your engineer to convert the crank thrust to take the later nitrated crank . I'd add headstuds and cossie headgaskets ,once you know the size of you piston bowl (to calculate thickness required) If it's gonna be used on track ,id also add a baffled sump and possibly swirl pot too 😉
November 5, 20187 yr quality pistons but pay attention to comp ratio with the group n spec as offsets piston 1mm up bore over standard .
November 6, 20187 yr Author Thanks for the advice guys It was only supposed to be a fast going road/track car lol I only bought them because they were near mint and cheep so I don’t mind selling them on again I only ask on here as rcm we’re like no help at all .. personally for me seems like a lot of agro to fit these pistons I’ll chuck em up for sale and opt for a different set :)
November 6, 20187 yr 5 hours ago, Ellsa1 said: Thanks for the advice guys It was only supposed to be a fast going road/track car lol I only bought them because they were near mint and cheep so I don’t mind selling them on again I only ask on here as rcm we’re like no help at all .. personally for me seems like a lot of agro to fit these pistons I’ll chuck em up for sale and opt for a different set 🙂 yup most suppliers are not too keen giving information about rival kit - however given the information from @Mr B just factor that into your gasket size as you will need to purchase those anyway??
November 6, 20187 yr Author I’m sure they are the supplier for omega pistons ? All they wanted me to do was buy there rods and crankshafts [emoji23] Anyway I shall get the calipers on them later and have a measure up I’ll post my findings and see if one of you helpful chaps can give me a direction :) Cheers dudes Sent from my iPhone using Tapatalk
November 7, 20187 yr Author Calipers are in the garage in the dark so the tape measure comes out does this give you guys any idea if they will be any good Sent from my iPhone using Tapatalk
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