fiestaturbo.com

[seano47]

thinking about doing a ZVH conversion on FRST found out today me heads cracked so need a new head and i think me pistons are f**cked



so av got a 1.8 block and head so thinkin of gettin a newa CVH head and using the 1.8 block av got to do a zvh conversion and conversion plate to do it so what do people think shall i go for it or just go for another CVH block again???

is there anything else i need to replace on car itself

[freak power]

For a FRST your best keeping it a 1.6 CVH or going the hole hog and do a Zetec Turbo.

A well tuned 1600 can deliver the goods and will rev better than a ZVH

[turboboss]

For a FRST your best keeping it a 1.6 CVH or going the hole hog and do a Zetec Turbo.

A well tuned 1600 can deliver the goods and will rev better than a ZVH

i will second that you are starting from scratch go full zetec or stay cvh to make a zvh produce the goods cost money

[seano47]

tar boys what do you think of them piston photos that i took

[freak power]

It also depends on your needs and whet you plane to do to the engine.

1. if you plane to build an engine for high bhp levels the a Zetec Turbo

2. I you can't afford to spend that much then tune the 1600 for high levels

3. If you need to do a cheap rebuild then a ZVH is a good conversion for the money as it can be cheaper than a CVH turbo rebuild

[matt1471]

what can you do to the XR2i for good power gains?? other than the basics....exhaust, induction.

Cheers all

[freak power]

A flowed head with bigger valves and a cam works well as a ZVH, Very good for N/A engines.

It depends on how much you want to spend really

[matt1471]

is fitting bigger valves as simple as that, or do they need serious grinding/fitting in??

What sort of money we talking for that?

Matt

[paradox]

head work including porting polishing and fitting of bigger valves is a job to be done by the pros.
When bigger valves are fitted the old valve guide is drilled out and bronze valve guides are fitted this is then used as a centre to machine the new larger valve seats and sometimes hardend valve seats are fitted using nitrogen to shrink them before the are fitted in the machined space.

[paradox]

thinking about doing a ZVH conversion on FRST found out today me heads cracked so need a new head and i think me pistons are fouquette



so av got a 1.8 block and head so thinkin of gettin a newa CVH head and using the 1.8 block av got to do a zvh conversion and conversion plate to do it so what do people think shall i go for it or just go for another CVH block again???

is there anything else i need to replace on car itself

That piston is knackerd mate and if i was you id drop the pistons out and have a look at the bores you will most probably find the bores with the knackerd pistons are also knackerd.

If so you will at least need a rebore and larger pistons as well as a new head.

Your best bet would probably be to find a block and head complete from another rs turbo.

It all depends on how much money you have to spend.

[seano47]

thanks paradox

[edders]

in theory if theres nothing wrong with the ancillaries on the engine then you could just get a 1.6 cvh out of anything(correct me if im wrong but didnt they do a 1.8 or was that an overbore i saw ) if it wasnt get a 1.8 and bolt the ancillaries to that and get some more power that way

i may well be talking out of my arse but i like imparting wisdom
(even if its s**t )