Probably a stupid question but here goes!

[oxenburger]

Hi guys,

Wondering if its possible to upgrade the pistons or change the camshaftes on the 1.9cdti(z19dth) engine to get more power out of the lump.

Would this be possible as i feel like i need to mod!

[GazVXLINE170]

if u have money then on u go

I take it u have tried remaps/boxes, sports air filters, sports cat?? alone these can allow 200bhp roughly.

Gazza4

[rushy]

You only need to upgrade if you have more power, all your going to do by putting a different piston in is maybe lower the compression so you could run more boost. The piston on its own wont really do anything except add some strength along with new rods.

[oxenburger]

I`ve got round the 190 mark with a caterman box but wondered how something like a high lift cam, or rally cams would work on that engine.

[rushy]

TBH mate, your not really going to get much more from it, many have tried, give DAP Performance a ring, they tried to heavily modify the a CDTi in the owner of DTUK's Astra, if I remember rightly it wasn't really money well spent.

[oxenburger]

ah ok mate,

Just started thinking about my mates mark 1 gte 8v that started out as a 1.8.

Ended up bored out to 2.1 with a stage 3 racing cam, turned the car into a complete monster. it used to rock there was that much torque in it. Probably only feasible with petrol engines.