Ive got a set of calibra turbo pistons (well very soon will have) with the idea of using them in to make a ZVH, but looking through some sites and talking to people just a little confused - Do they fir the 1.8 block as well as the 2.0 block? Anyone know?

 

they need to be fitted into an overbored 2ltr block, but they will drop the c/r too much when used in a ZVH engine. People generally use the vauxhall XE pistons in the ZVH engines and vauxhall LET pistons in Zetec Turbo engines.

 

IS that right?! But the LET pistons do still fit in the 1.8 Zetec engine?

 

the LET pistons are 86mm diameter so wont fit the 1.8

 

Bugger so looks like iam after a 2.0 Zetec. Guessing its the same for the XE pistons in a 1.8?
Cheers for the help by the way, its very much appreciated!

 

yeah, think both the vauxhall pistons are 86mm

 

yeah both are 86mill

 

As far as I know there are no "off the shelf" fit pistons suitable for any 1.8 zetec (OEM pistons that is).

For a 2ltr block (bored to 86mm - aka "2.1"), you have the choice of from Vauxhall:

Calibra Turbo (LET) Pistons, suitable for 16v Zetec turbos (CR too low for 16v!)

Astra GTE XE pistons, suitable for ZVH 8v conversions (CR too high for 16v!)

2ltr blocks arnt much these days!

 

Ok then will they fit any Zetec block e.g. silver or black top? And i understand i have to use a 1.8 Zetec inlet? In which case ill start collecting bits!

Cheers guys!

 

If I break my RsT I can sell you an ian howell built 2.1 and l8 cossie management with the loom and coilpack conversion, greens,3 bar,uprated box if yer interested in the new year

 

I would defo be interested...just depends how much you wanted for it

 

Vauxhall pistons will only work in/with Mondeo type blocks and rods.....cant stick them in a focus block (black top)!

 

thats ok phil as the back top dont fit anyway

 

What makes you say that Ginge?

 

phil it dont fit without HOOGE mods, hence why i said that, he wants a cheep conversion tooo


as he only blows em up

 

Hows that then? What huge mods is that?

Cheap conversion.....go Silver top 16v zetec with Calibra turbo pistons