Forged Pistons

[G40Poles]

I'm just after abit of advice on which piston brands people have used when having their g40 enigines bored out to 1341?, so far I've found some on rp-motorsport and accralite readily make some for the g40. Any other suggestions let me know.

Pete

[PeteG40]

wossner also do them - Yoof can supply these.

If you do a search i think there is some debate about accralite and wossner - as accralite have an increase compression ratio.

[G40Poles]

Oh right cool, any rough Ideas on the prices of the wossner pistons?

I've also heard jabbasport do or did sell some for the g40 aswell does anyone know about these?

[Nick_S]

Oh right cool, any rough Ideas on the prices of the wossner pistons?

I've also heard jabbasport do or did sell some for the g40 aswell does anyone know about these?

The Jabba Sport ones are made by JE iirc

[jez1272gt]

when taking a 1272cc to a 1341 you are oversizing the bore from 75 to 77mm.

A few argue that the accralites (£600-650) are the best make of pistons for the money but not the most suitable for the g40 application as they raise the compression ratio from 8.0:1 to 9.0:1. this is not ideal if you intend to run high boost etc but not so bad if you can keep the burn temp down cos it will help with driveability and lower range response.

The better option it seems, cheaper, easier and safer (engine wise) are the wossner pistons. They keep the Comp ratio the same as standard (8.0:1) and around a year ago was quoted £440 for a set...

...This is just what seems to have been the general concensus when i posted up a topic on the matter over on CP... hope it helps!

[G40Poles]

Thanks for that jez1272gt, I have been lookin into the wossner pistons abit more an I think there what I'm goin to go for so hopefully just after crimbo I'l have nice new set of pistons for my g40