Tombra

Iam soon starting to build a 2.0 ZetecTurbo for my project, but i need some feedback about:

1) what Compression Rate to go for. I will be using new forged pistons and steel rods ofcource.
2) Management. Many ppl tell me to use Megasquirt, but iam not sure? is it a bit fiddely to set up?

Looking for a solid 300-350 bhp from the engine.

Turbo Zetec

iTrader: (1)

how long is a piece of string?

9:1 will make that power (as the WRC cars did), 7:1 will also make that power. personally, i'm going somewhere in the middle

the best advice i can give, is measure the compression ratio properly. the JE's that are supposed to give 9:1 compression actually work out a bit more on a standard engine with a standard gasket, so be cautious!

clarke5700

15 mins thats how long it took me to get my mk6 escort running on ms. as for rods save your money standard 2.0 silvertop rods hold atleast 300bhp just dont treat the engine like crap im also building a zetec turbo lots of fun lol NOT good luck

NEEDFORSPEED

as long as youre using sufficiant cooling go for 8.5-1. worked perfect for me. on megasquirt also was so so easy to use and play with as long as youve got a good quality wideband

pa_sjo

7.5:1 and a decent turbo (eg, T34) will give you a flat torque curve from 2500rpm upwards on standard cams. For 350bhp though you'll need a ported head, double valve springs and definately steel rods.

Tombra

Yes i know there are a thousand answers on this questions, thats why I want to hear your opinions

low down torque is a must. I wil be using new rods, as i want a solid bottom end, with no weak links.

jammy86

If low down torque is required your gonna need to go higher comp or buy a very expensive turbo.

JAmes.

pa_sjo

Are you saying that 320 lb-ft at 2500rpm isn't enough low down torque from a 2 litre?

crazycage

For 350bhp though you'll need a ported head, double valve springs and definately steel rods.[/QUOTE]
or a st170 head

pa_sjo

Yes, but that's even more work with regards to valve springs, cams and VVT/removal.

crazycage

keep the vvt and the cams and the vale springs are no worse than any other zetec ones