fiestaturbo.com

[Wude Si 16v]

is it as simple as it sounds, zetec bottom end with low compresion, frst head with a few uprated modifications...? can it be this easy

also whats the difference in performance between the fezzy 1800 zetec lump and the mondeo2.0 zetec lump if they were in a fiesta? fast ford say they both kick out 130 bhp, if this is true why go for a 2.0 litre and kill your insurance even more...

cheers, Adam.

[voorhas]

I guess its mainly because the 130 bhp 1.8 is extremely rare. And the 2L has the bonus of being torquier.

Gonçalo D.

[davy]

True enough, the 1.8 and 2.0 kick out about 135bhp as standard though the 135bhp ish quoted for the 1.8 is down to the extra it has up top. ie different throttle bodies and the like over the normal 1.8 which only produces around 115bhp. if you were to do the same to the 2.0 as to the 1.8 you would get more power than 135. If you are wanting more power with the cvh top end go for the 2.0. The only advantage of going for the 135bhp 1.8 is that it has it has oil spray for the cylinder bottoms which the 115 doesnt. The extra bore of the 2.0 would mean that heat build up will be lower anyway and would not be needed unless your are running big boost.

[Wude Si 16v]

so you are saying use a 2.0 zetec on a zvh conversion and not a 1800 zetec. the only point i would say is that with the 1800 zetec you wouldn't need anything changing over from other blocks, or would you...

so it is quite an easy process if you are willing to spend the time and money... don't think i will sell it now.

[Mark Si]

Just wondering, why do you want to go from 16v to 8v?

[Quantum John]

Wude,
1800 Zetec was produced with 3 different power outputs 105ps, 115ps and 130ps. The 2litre Zetec had 136ps. 1ps is almost 1bhp, something like 0.9645. The 130ps 1800 Zetec engine is rare and therefore expensive secondhand. It had different throttle bodies amongst other bits to the 105/115 so not much point getting this one if you are going to use the CVH Turbo head.

If you really want to know what is involved in building a ZVH turbo check out my mate Jim's website.

http://www.jimhearne.co.uk

John

[MadcatCraig]

i replied to ue pm wude dont use cast pistons with a turbo engine they will pop unless u run real low boost which is pointless

you allready got a 1800 rs 1800 engine turbo that u need low comp forged pistons turbo oil return plumbed in anda breather drilled on the back of the block as you would with a ZVH

you will also need FRST ecu and loom management etc and frst inlet and exhaust manifolds if you do a 16v you will need to convert the head to take these.

[Wude Si 16v]

starting to think that this might be quite a large project. i thought a frst head and manifolds would fit onto a 1800/2000 zetec engine, once it has been ported and polished and new pistons in the block this has to be a few main factors completed yes... the real problem is going to be the management system i fear, people have told me to go for cosworth management but i said no as this definitely sounds too complicated.

i do have a bit of money but not thousands that i would need for a zetec turbo

what exactly are the main problems with this type of conversion then...?

cheers, Adam.

[chumkila]

A std FRST management will be more than sufficient.

[Phil Si]

lol the rs1800 engine uses the same size throttle body as the 2.0..
the 2.0 also has the under piston oil sprays..
this leaves cam and ecu....

i think u might find the ford figures for the 130ps version were abit generous..

[davy]

didnt know the 2.0l had oil spray. as they say you learn someone new every day

[Phil Si]

to be honest i didnt either, it was only when we swapped teh sump over that u could see under the pistons and there they were lol

[Wude Si 16v]

so out of the two (1800/2000 zetec) which would you say [ERRR] best for the conversion, i thought that an 1800 would be better cos then you wouldn't have to change things like sump, oil pick up, etc... but i do like the sound of a 2.0 turbo,

cheers, Adam.

[Paul RS1800]

It's all down to how much you wonna spend (not forgetting insurance), I'd personally go for 1800 zvh

[MadcatCraig]

your going back in time here !

ok

your going from 16v to 8v

WTF ??????

firstly you need to significantly mod the zetec bottom end and strip it and get it to a engineers for the following to be done.

front 4 zetec oil pathways need to be plugged.

You need a breather in the back of the block this means drilling anda pipe put in.

you need the front of the block drilled and a pipe put in for the oil return.

you need holes drilled and tapped on the side of the bock for the cvh water pump and u also need a water pump plate made up to fit.

if you use a 1800 the head will bolt straight on but you will need custom headbolts for the length as standard ones are not long enuf.

if you use 2000 then significant cvh headwork has to be done to fit the zetec bottom end.

Oh if its turbod you also need forged pistons arroudn £500 a set

you can use skimmed cast pistons but if u turn up the boost they will go pop and melt so its not worth it ! ask any engine builder they will allways tel you to use forged pistons in a turbo engine !

so for the money your gonna spend just turbo your 16v much better and loads more power.

if you thing a ZVH is cheap ! it isnt !

[Wude Si 16v]

just a quick thanx to Madcat, Ianfrst and others who said dont go from 16v to 8v, this is not definite as i dont know if i am selling my car yet, but if i keep it then i have decided to go for the zetec turbo.

after looking at excursions web site i thought that it could be possible and if i have problems then i will have to save up some money and get the pro's to do it for me. i think thatan RS1800 engine would be easier though cos you dont have to change parts from the 2.0l

some one tell me if i am making a big mistake...

you never know, i will change my mind tomorrow and sell it for a jap car or summet...

cheers, Adam.

[chumkila]

Go for it i say.

[Si_1.6]

are u selling ur Sia dn how much?