fiestaturbo.com

[Nicfish]

How hard would it be to convert a 1.8 zvh into a full zetec turbo conversion?

I know you need lower C/R, but thats already taken care of.

I know you need to sort out the exhaust by either drilling and tapping or a new manifold.

The inlet manifold bit confuses me though. Can I use the Zetec mainfold with my current RS fuel rail?

Anyone done this before?

[phil_pearce]

Not sure if you can use the Zetec inlet with FRST fuel rail but think you can get larger injectors to fit the zetec inlet. I used the fiesta turbo inlet for mine. What turbo are you planning on using?

[Nicfish]

Im running beige's at the moment but there pretty much on there limit! How did you get the RS one on, adapter plate?

Currently running a T3 but I planned on an upgrade soon anyways. Any recomendations?

[Ruishy1]

you need to remove the 4 oil gallerie blocks, an adapter plate is used to mount to FRST inlet to the zetec head.
there is probabley other stuff im forgetting

[dangerousdave]

im currently building a budget low boost one useing a decompression plate, i have drilled and tapped the head for the exhaust and am currently designing a inlet manafold adaptor as i got my car to start last week with the zetec inlet but didnt idle low or rev it would just die at any sign of throttle! so im going to make the cvh one fit with the cvh tps and iscv

if you wanted to use the zetec one an after market management would be best proberly, or relocating the frst iscv on it somewhere along with the throttle body?

[Nicfish]

Im already running aftermarket management so thats no problem. But using the RST would probably save alot of hassle and trial and error.

Anyone make the adappter plate? Or is it best to get it machined?

[dangerousdave]

i was going to buy one but am on a tight budget and have access to cnc milling machine and a cad program at my old work place, when its not in use ( so not too often, lol) but they are for sale via farriday engineering at arround 108 quid iirc and then you still need another one to space the top and bottom half out 1/2 inch to clear the zetec rocker cover! also availible from them at about 80-90 i think


but if i were you and had aftermarket management id stick with the zetec one and get some side fed injectors for a scooby or skyline as there direct fitment into the zetec rail iirc

[Nicfish]

So what sort of injectors am I looking at?

Something like thesehttp://cgi.ebay.co.uk/SUBARU-LEGACY-IMPREZA-EJ20-WRX-TURBO-RECON-INJECTORS_W0QQitemZ110473820555QQcmdZViewItemQQptZUK_CarsParts_Vehicles_CarParts_SM?hash=item19b8c0b98b?

Unless you fancy making a couple extra adapters

[dangerousdave]

yeah sure there the ones mate only a small flow rate but at a guess they would be good for 250 bhp......?? only a guess tho lol, prob best to double check they fit the zetec rail too as im only going on what ive read, 99% sure they will fit as that pic looks exactly like the side fed inj in the mondeo but maybe look down the scrappers first and check in a spare mondeo sandwhich plate??

as for making more plates ill see how much the alloy is going to cost me as its going to need to be 4.5" wide by 1/2" thick and ill be getting ground finish alloy so it has a good gasket face also bearing in mind ill be testing the first one on my car to make sure it works but after that ill have the program saved and cant see why it wouldnt be able to be reproduced easy enough!?

[Nicfish]

What sort of rate am i looking? I thought that the Subaru injectors would be alright as they flow more than beige's at least.

[dangerousdave]

yea sorry just looked again and it says 380cc not 280cc lol, was half asleep last time! lol

[phil_pearce]

Im running beige's at the moment but there pretty much on there limit! How did you get the RS one on, adapter plate?

Currently running a T3 but I planned on an upgrade soon anyways. Any recomendations?

I drilled the head to take the FRST Manifold. I then made an adapter to go between the bottom half of the manifold and the top so it would clear the head, I used a gasket as a template. I used lancia integrale evo injectors which Grove Garage reccomended to me. They fit the FRST furl rail. They are ok for upto and around 300bhp.

[Nicfish]

Had a think about it, and im gonna need to keep the frst inlet for the reason that I need to keep the same injectors otherwise I wont be able to get it to the R/R to get it set up. Lots like im gonna have to look into adapters!

[phil_pearce]

I used some stainless steel plate which I bought from a supplier and cut them myself. Wasnt to hard a job and alot cheaper than buying them already done.

[Nicfish]

Does look like im gonna have to make my own adapters

Effort.... haha but doesnt look like I have much choice. What about the rover inlets? I know they still need to have an adapter, but I like the look of them. What injectors do they take?

[phil_pearce]

Does look like im gonna have to make my own adapters

Effort.... haha but doesnt look like I have much choice. What about the rover inlets? I know they still need to have an adapter, but I like the look of them. What injectors do they take?

Depends what fuel rail you use i guess. Think you can still use the FRST fuel rail but im sure someone will confirm. I looked into these a didnt really feel it would benefit me as my FRST inlet has been ported and matched to my head.

[dangerousdave]

im not 100% but i think you need to use the rover rail as doesnt the inj sit straight rather than at an angle?? ive just finished drawing my adaptor plate up and writing a program for the cnc m/c im going to use

heres a look!! not sure if its the final one but you get the idea!



and the inlet spacer



cheers, dave

[Ruishy1]

you have access to turning facilities mate ?
i need a pulley like this made up http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... %26otn%3D2
but all alloy, both crank and charger for th lexus v8.

[dangerousdave]

yeah but its only a small cnc lathe at my old work place would have to turn a blank up to hold onto or could be done on the manual colchester....?? there dear for what they are aint they!!??

could it be made as one pc? would look nicer and be stronger??

[Ruishy1]

ive just found out the crank pulley is harmonic, so i cant replace it, so need it made like the one in the link.
Ive got someone giving me a rough qoute as we speak

[Nicfish]

Which rover manifold is better, the one that says injection or the one that says turbo?

[dangerousdave]

Which rover manifold is better, the one that says injection or the one that says turbo?

depends if you want it to say injection or turbo as iirc i think there the same!

[Nicfish]

I think turbo looks better in my opinion. Seems more suitable for the period!

So from what I gathered:

RST manifold can keep my injectors but need adapter plates.

Zetec manifold goes straight on but uses side feed injectors like ones from the 200sx, but will need a remap.

Rover manifold goes on with 1 adapter plate, but not sure on the injectors. However the rover injectors seem to be similar flow rate so may only need slight tweek on the mapping side. Or can I get the beiges in the rover manifold?

[dangerousdave]

I think turbo looks better in my opinion. Seems more suitable for the period!

So from what I gathered:

RST manifold can keep my injectors but need adapter plates.

Zetec manifold goes straight on but uses side feed injectors like ones from the 200sx, but will need a remap.

Rover manifold goes on with 1 adapter plate, but not sure on the injectors. However the rover injectors seem to be similar flow rate so may only need slight tweek on the mapping side. Or can I get the beiges in the rover manifold?

yeah, your beiges will fit straigt in tho mate

[Nicfish]

Nice one! Well guess its time to start gathering the parts!

So the FRST throttle body will go on the rover manifold?

[dangerousdave]

you have to drill and tap 3 holes i think maybe all 4 but im sure they fit and its an easy job! the injectors fit useing the rover fuel rail

[Nicfish]

Could I use an RS1800 throttle body instead of the FRST one?

2 reasons:
So I can leave my FRST inlet intact
Will I see any benefits?

[dangerousdave]

yea you have aftermarket management dont you? you will need to change the tps values tho proberly!? why not go for a 2 or 2.5 l mondeo one if you want improvement/more flow?

[Nicfish]

Doesnt there have to be some sort of matching for there to be even distribution of the air to the cylinders? Or is it not so much of an issue with forced induction?

[dangerousdave]

with the tb? not really an issue to be fair as thats the manifolds job!

as long as there within the zetec ports like my first sketch there wont be a problem, the cvh manifold on a zetec has proven good resuls a few times

[Nicfish]

Think im gonna use the rover manifold and get the flange changed.

But I read somewhere that if your throttle body is too large that it can slow down the air coming into the manifold too much?

[Ruishy1]

Think im gonna use the rover manifold and get the flange changed.

But I read somewhere that if your throttle body is too large that it can slow down the air coming into the manifold too much?

yup, air spped is just as important as flow.
standar would suffice

[dangerousdave]

Think im gonna use the rover manifold and get the flange changed.

But I read somewhere that if your throttle body is too large that it can slow down the air coming into the manifold too much?

yup, air spped is just as important as flow.
standar would suffice

i wouldnt think this is true for forced induction only n/a! ?

[Nicfish]

Just gonna stick with the RST throttle body. Seems less hassle and if it aint broke then dont fix it... even though there is nothing wrong with my 8v... haha

Anyway, I have bits on the way! then the project can start!

Any advice on head bolts and head gasket? Should I get the Triple layerd metal head gasket or just stick with standard?

[dangerousdave]

ive used tripple layer focus rs ones 35 quid each from ford, also used non strech high tensile bolts