Who sells good A15 race pistons with 11.5-12.5 odd compression? forged preferably. Would also be nice if they are set to accept a 300 odd degree cam.

thanks

Look up a guy on here called Dundee1000 he can get allsorts of goodies for the Aseries

Most piston makers take custom orders. For forged pistons, you just order a custom set. About $400 USD. See Piston suppliers

In South Africa, maybe LEDA?

Leda have a very poor reputation here,

Will give Dundee a PM also Paeco industries.

Thanks guys

Yeah go with Dundee, good prices & service.

i was quoted $1400AU a couple of years ago for custom forgied slugs to suit a A-14. Price may have changed since then?

Some amazing prices coming up, My 800hp GTR's pistons are 30% cheaper! , looks like ill go back to using good (OE) B6 or E3 pistons, i could buy and build 3 motors for the price of one set of forged pistons,,, that said forged isnt ideal in a NA motor anyway do to a larger expansion/contraction rate (up till a certain power level obviously)

Did you measure your piston to valve clearance when you assembled your engine?
Also without a cam card, I don't see how you could have properly dilaed in your camshaft either. Perhaps at those revs the piston was starting to catch the ex valve as it was chasing it shut?

I have 4mm valve clearance at minimum and an adjustable cam gear and timing cover with removable window to make the best of the setup once its complete.

My problem is/was valve spring seat pressure, it is to soft, busy machining up some titanium lower spring seats 2mm thicker than stock.

FYI, CP and JE charge almost half the price of the pitroad or Kameari to make sets of one off forged pistons. tough im going to try stay away from forged if I can. I have my hands on a set of B6 pistons, will try them in my spare block

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I'c crack two setsof piston's but they were just whatever I was given at the parts store. what are the diferance's??