djmillsy

ive had my s2 for aro8und 2 years now its been in the garage for over a year, as im in the middle of rebuilding her form a bare shell. Ive decided to do this as the last two engine went the second dropped a valve and fucked my turbo along the way. now i want to buld her with around 250bhp shes got 184bhp the now but i want more heres the question what engine do i use do i got for mfi that would be on the limit and as i see it not very safe, thens theres efi but i dont fancy that for some reason or a zvh i really fancy a zetec turbo but dont really know whats nivolved so im looking for some help and advice. Basically on what i need for the conversion and what looms id need and how it would affect the clocks and central locking etc. thanks for you help

bigryrs

iTrader: (10)

[QUOTE=djmillsy;3753688]ive had my s2 for aro8und 2 years now its been in the garage for over a year, as im in the middle of rebuilding her form a bare shell. Ive decided to do this as the last two engine went the second dropped a valve and fucked my turbo along the way. now i want to buld her with around 250bhp shes got 184bhp the now but i want more heres the question what engine do i use do i got for mfi that would be on the limit and as i see it not very safe, thens theres efi but i dont fancy that for some reason or a zvh i really fancy a zetec turbo but dont really know whats nivolved so im looking for some help and advice. Basically on what i need for the conversion and what looms id need and how it would affect the clocks and central locking etc. thanks for you help[/QUOTE

I went down this road when doing my escort turbo but never finished the car i bought
1.8 zetec engine with 130bhp cams
modified the oil return on the sump so it was in the front
got a zetec escort sump with the gap for your exhaust to sit in
fully rebuilt the engine i used a decompression plate but forged pistons would be better i reckon.
i bought a megasquirt ecu which is simple enough to use and set up the car.
but then i broke the car up so never drove it but ive recently had a 2.0 zvh turbo escort on megasquirt and it was rapido was about 230-240 bhp on low-ish boost

pa_sjo

Realistically it'll cost you at least a few grand if you do it properly. To buy and rebuild a 2L zetec, with a set of vauxhall pistons and all machine work, you're not looking at much less than £1500 (with new pumps, gaskets, uprated valve springs, etc). Then you've got turbo, manifolds, injectors, management, uprated fuel system, mapping, the list goes on..

bigryrs

iTrader: (10)

the list goes on and the bank balance falls quicker than a hookers knickers lol

rst in breaking

iTrader: (2)

as said above it doesn't work out cheap, ny the time you add up inlets, gaskets, diff sump, flywheel, a gearbox to take the power and then the parts you decide to upgrade aong the way as the spec rises expect atleast 2k to build a zt on c20let pistons properly with new parts

djmillsy

so it would be better to rebuild the car on efi. if so can i use the thottle body form my mfi turbo and what loom will i need

blueskies85

I think the most expensive cost is the forged pistons and rods... they will be needed for the power this guy wants to run.... at around 800 quid they are the highest single purchase.
I wouldnt skimp on anything else to lower the compression.... spend the money and reep the rewards a reliable, strong engine will give you!
Shop around for the pistons and rods... i know you can mate c20let pistons for the vauxhalls to the ford rods but your rods need machining to accept the vaux's gudgeon pins.
i dont think you can use vaux's rods as the crank is of a diff diameter... in fact im sure you cant so you could go for some forged ford rods and forged c20let pistons. This should give you a compression ratio of about 8 to 1 which is lovely.
If you are wanting a lower compression then go with lower comp c20let pistons... i think the lowest you can get the zetec bottom end down to is 7.4 to 1 with vaux's pistons.. what vaux say about compression is diff when put in the fords.

rs_turbo_lad

to go efi from mfi , u need fiesta turbo head,loom etc. i have a fiesta turbo head here spare with new gaskets including head gasket if ur interested ,this could giv u a start , not wanting much for it ,30quid u can have it plus gaskets,let me know cheers

blueskies85

just stick with efi mate... its a whole lot simpler.. why change something if it doesnt need it... efi is awesome and there are some good figures coming out of them... more than you will ever need on the road lol! Good luck! Maybe put a build report up as you go, they help loads and you get some good comments to work with... it can stop problems before they get expensive too... everyone is nosey and they love to have a good look at what others are doing! If you get stuck you will have pictures to point people in the right direction too.. when i built a jap spec b16a turbo for my civic it was a god send having a build report on there!

rst in breaking

iTrader: (2)

alot of the £800 rod and piston combos are crap tbh, alot of the pistons are too soft, i.e woosner- i believe people have trouble with them warping?
decent steel rods set you back £800 alone. whats wrong with c20let mahles? they're good pistons and if the car is mapped right they can take good power

orion_crazy_carl

iTrader: (3)

i got some focus RS pistons and rods,doing the job nicey
this zetec turbo lark is bloodly expensive,but worth it

blueskies85

oh is that so, i didnt know that and thanks for the information.. ill bear it in mind when i start my zetec build. Its a shame as I bought some wiseco pistons and eagle rods for my b16a and they were 500 quid from america, that was when the exchange rate was good but its crap now!