9 replies to this topic

[govig]

I'm building 1380 conversion for fast road use (SW5 cam) . There is quite a big price difference between Omega 73.5 die cast and forged pistons. Are forged pistons a waste of money for road use or money well spent?

[jameswildcooper]

personally unless your going to be running serious power ie turbo/supercharged with lots of boost i wouldnt bother with forged just stick to the cast pistons

Edited by jameswildcooper, 09 January 2012 - 05:44 PM.

[govig]

Normally aspirated but it's the 100 bhp & 100 ft-lb spec. The price difference between the two is £180!

[maggies_minder]

im just reading about forged and cast pistons in the vizard bible give me a couple hours and ill get back to you.

[HARBER07]

Cast will be fine unless you're going for forced induction/nitrous

[Clubber Lang]

I've got the same cam running around 90bhp using cast omegas

[jameswildcooper]

i was running 150 BHP out of my old supercharged 1380 and that was fine with cast omegas.
only gone for forged this time as im wanting around 200ish bhp

[Sprocket]

Cast Omegas will be more than adequate in any normally aspirated engine.

[maggies_minder]

dont omega has a manufacturing process, that means theres little difference between the strengths of their forged and cast pistons. im sure it makes the cast ones more durable.

[62S]

So long as you buy quality cast pistons such as the Omegas you should be fine with that engine spec.