Finally, its turbo time...

[aerosam]

Originally Posted by twinturbo

Turbo Techics did a kit for the I4 DOHC.

This used standard internals and produced roughly 173BHP nearly 50 over standard.

My 250TT Sierra has very minor mods to the heads to slightly lower compression and that's 100BHP over standard.

So it is possible and will work fine.

The big problems come from Bleed valves and HUGE turbos.

TT

Aren't both those engines cast iron blocks and therefore stronger? Not sure about the I4 but the V6 also has cast iron heads doesn't it?

Also worth bearing in mind that Turbo technics are turbo experts.

There was a robin hood zero with a blown pinto in CKC a while back, made 140ish bhp and did 12-16mpg with a mish-mash home made setup. Much higher figures are possible with a professionaly made kit. I don't know if there is one for a zetec but there might be.