McGoo 69

Im currently building a focus rs engine for my mk5 escort project

I got a engine from pumaspeed and ive got hold of a Turbonetics GTk650 turbo for a steal of ebay

Im thinking of getting the engine bored to 2.1 low comp pistons new rods ballenced crank ported and polished head with cams etc 4branch manifold etc

but im wondering whats the best inlet manifold i should go for around the 500-700 bhp mark?

Also what gearbox should i use? i can source a focus rs box easily but id like to use a mtx 75 with a new diff so i can used the exsiting mounts in my mk5

also going to be running water injection also

basicly i just want to discuss the best parts to use in my engine build. if anyone has anything for sale that might be of use let me know

matty

anodised

the gear box in the focus rs is a mtx75 with a atb

McGoo 69

arnt the mountings different? can escort mk5 mounts fit or do i have to weld the chassis to suit the focus rs mounts?

idealy id like the older mtx75 with the link rods rather than cables as i have a brand new bandm shifter id like to use as i know how rare they are these days

how much bhp can the focus gearbox take?

anodised

the mounts are different on the focus so just drop the inside from the focus box in the old box

or use the old rs2000 mtx75 with a atb

pa_sjo

With all due respect, did you just pluck these power figures out of thin air?

McGoo 69

no the build is in progress hence why i need help to acheive this.

if you look on the turbonetics website the turbo i have is suitible for this power range hence why i need to build a engine which is capable for powers between 500-700

im not as clued up as you so go easy. this is a hobby for me so everyday im learning.. im realy intrested in smart arsed comments before anyone goes that way

Turbo Zetec

iTrader: (1)

all that power is a complete waste in a fwd road car...

and as for your spec list:

cgi block
billet crank
steel rods
custom forged pistons
billet geared oil pump
ported head with big valves

to name but a few

the engine you've bought isn't much good at all, maybe the head casting, but thats the same as any other focus or mondeo 2.0

McGoo 69

tbh the fwd will probably only be for a year or so, im using a shell i already have. if a escort cosworth shell ever comes up at the right price ill buy that for rwd use.

obviously 99% of the engine will be rebuilt with better parts but i got the focus rs lump for a steal low milage so all the parts can be sold on for a better price than standerd zetec items to zetec turbo builders

i know the parts list i need to buy to cope with the power i ment what shops to buy from etc

thanks

anodised

i would use an st170 head aswell

McGoo 69

ill probably be using a pumaspeed big valve focus rs head

pa_sjo

I'm afraid you can't build a 700bhp zetec engine by buying parts from 'shops'.

Turbo Zetec

iTrader: (1)

well...

CGI blocks are no longer available
custom steel crank from farndon Ł1300ish
i'd get the rods custom made with large small ends, probably arrow
custom pistons from CP, JE etc
there is no inlet available off the shelf, so custom
there is no exhaust manifold available really either, so custom
valves, springs, retainers, guides, stem seals, all from ferrea, around Ł600
ported ST head, from Ł500 to Ł1500 depending on who you go to
custom cams, kent, piper, cat cams?

for that power, nothing is easy!

McGoo 69

thanks pumaspeed do alot of 600bhp capible stuff so im going to look into that more.

if the turbo is too big for my engine ill sell it on and get something more suitible for nearer the 500bhp mark

pa_sjo

Pumaspeed have never built a 600bhp zetec! Nor would I expect them to have the skillset to do it!

I am more than happy to retract that given proof otherwise!

McGoo 69

600bhp pistons

http://www.pumaspeed.co.uk/showdetails.php?id=493

600bhp conrods

http://www.pumaspeed.co.uk/showdetails.php?id=494

they also do this which is upto atleat 500bhp

http://www.pumaspeed.co.uk/showdetails.php?id=672

Turbo Zetec

iTrader: (1)

500bhp is still too much for fwd, you'd be better off spending the money on converting your escort floorpan to a sierra one for a start

Luca

iTrader: (2)

As always there is ONLY really one man to speak to who has the experience in high power Zetecs.
Ian Howell, he can advise on this but please remember if your going to speak with Ian he is not going to give you every piece of information under the sun for you to build this cheaper.
Personally you WILL need a big budget to run that power . end off.

Its not just an engine your building here, your building a car.

Fuelling system
Intercooler
Radiator
Custom exhaust system 3.5" /4"
Suspension
Brakes

Not to mention the expensive parts such as cams inlets exhaust manifolds and the hundreds of other componets.

Remember your wanting to build something thats not yet been done.

Currently Zetecs are upto the 530hp mark maybe a little more but nothing has hit the realms of 600-700.

Your therfore into unknown territory, what headgasket do you use?, what clutch? etc etc..

I want you to do it but believe me you wont do this on a budget your going to need huge sums of money i mean HUGE!!!

RESEARCH -TEST- DEVELOP is the name if this kind of project.

McGoo 69

yeh i understand what your all saying but the bhp finger ive got from the turbo i bought as i know its a good turbo. it does say on the website its suitible for 500-700 so it doesnt have to be 700 im happpy with 500 even 450 for that matter but ill have to use a different turbo for anything less than 500.

fueling/mangment ill be using omex and aquamist
i already have a uprated escort cosworth big intercooler and rad combo i bought last year
i knew i needed custom exhuast system anyway
suspension i was going for gaz golds
and brakes im using aps

this isnt going to be half arsed it takes as long as it takes but its also a learning curve

i understand 700bhp is too much for fwd but it will eventully be rwd i want to build it and see how it handles before i commit to a big 4wd/rwd conversion

pa_sjo

They don't even know what the photo is they've got! They show a photo of I-Beam rods, but in the description call them H-beam


As I said, pumaspeed is not the place to look for when it comes to high power zetecs. They just import a load of crap from the states. They're not engineers.

Luca

iTrader: (2)

Go for it I say mate if you need any advise or questions answered id be more than happy to shed some light on what I know from my set up.

As said above there are better people around to speak to, you want people with proven cars, power, results to help. Too easy to say this and that is capable of the numbers game. Get advise from many and you will find the true answer.

McGoo 69

thanks for the advice. Like I say it's still a learning curve for me but something i want to choose.

I know 700 bhp is optimistic in fwd but I can always lower boost or change turbo it's no problem I got this turbo for a good price

Luca

iTrader: (2)

700 HP will be possible from a zetec have no fear on that one!
It will be achieved in the next couple of years. Its just a massive massive task to undertake and it will need alot of money to do so.

500 hp is still something that will cost you more than you may think but IS achievable.

As for what head to use, use a Black Top zetec

McGoo 69

So do you think it will be best to sell the rs lump and start from scratch due to the amount of work I'll be doing to it?

bigryrs

iTrader: (10)

sell it to me lol

pa_sjo

It would be best to approach someone who knows what they're doing to get their opinion on it. 700bhp is fairly unknown territory for a zetec.

Just incase the internet is clouding your judgement with ridiculous power figures - 300bhp smokes the wheels in 1/2/3 gear, 350bhp 1/2/3/4 gear, and 400bhp all five gears.. 500bhp.. you can only nail it after about 120mph..

McGoo 69

surely that's only if ur pelting it I'll have to be delicate with the right foot haha

Deffinatly going to look into 4wd at some point though

Luca

iTrader: (2)

I beg to differ on that statement, perhaps previous ones have.

Im pretty surprised so far on traction, its hooking up nicely. Still more power to come so im not commenting 100% factully, but the first half of your reply above is not happening on mine. + you missed 6th gear!