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PostPosted: Tue Apr 16, 2013 4:01 pm 
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I know this has prob been asked a million times..
But curious as to how much it will cost to build and fit a zetec turbo to a mk2 fiesta
Thinking of running
1.8 silver top Zetec
Spacer plate to lower the compression
Any ideas what would be best to use for the rest ?

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Last edited by xr2brett on Wed Feb 05, 2014 9:10 pm, edited 2 times in total.

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PostPosted: Tue Apr 16, 2013 4:58 pm 
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how much power do you want and do you mind lag?
£500 to £10k approx
my last setup cost about 8k for engine/box and associated parts, power is unknown, but should have done 400bhp+ given gt30 turbo@2BAR and forged cammed 2.1 zetec engine.

i have no advice on doing it cheap apart from don't do it, use a frs engine or st170 engine as a base, thick head gasket and 300bhp is cheap enough.

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PostPosted: Tue Apr 16, 2013 5:59 pm 
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Erm 300 bhp would be plenty enough for now :)
Thinking of a working progress build :)
Like to spend around 1k to start with and get me running then move onwards and upwards..

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PostPosted: Tue Apr 16, 2013 6:44 pm 
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If I had a grand I'd forget the turbo have a fresh built zetec with race bearings new everything set of cams and carbs that will produce good power and last.

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PostPosted: Tue Apr 16, 2013 6:55 pm 
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No I've got a lairy n/a zetec ....
Bored of it lol

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PostPosted: Tue Apr 16, 2013 7:39 pm 
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st170 engine, fit arps (not sure if they have them standard tbh) thick 1.8mm headgasket on a standard blacktop head.
gt28 turbo (gt28rs would be spot on with head room).
then pick management, injectors and get it mapped.

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PostPosted: Tue Apr 16, 2013 8:30 pm 
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Sean XR2 ZT wrote:
st170 engine, fit arps (not sure if they have them standard tbh) thick 1.8mm headgasket on a standard blacktop head.
gt28 turbo (gt28rs would be spot on with head room).
then pick management, injectors and get it mapped.


So I would I use the whole lump just with the thicker gasket?

Here comes the bank job lol
I need everything lol
Omex 200 won't run it will it ?

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PostPosted: Wed Apr 17, 2013 6:40 pm 
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Is there a way of fitting it all without cutting the front cross member ?

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PostPosted: Wed Apr 17, 2013 8:01 pm 
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if you used an st170 bottom end, sod the head (which fetch reasonable money) then fitted a standard blacktop head with a 1.8mm mls gasket then the engine itself would be good for about 300bhp.
then find a frs exhaust manifold and frs turbo, then you're good for about 270-280bhp (turbo will be running out of steam abouts there), no need for cross member chopping then.
inlet could be a silvertop ho inlet and use some subaru injectors or other side feeds for an easy life.
omex 200 wouldn't be ecu of choice, i'd be looking at omex600 or better, dta or even megasquirt if you are really keen to learn.

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PostPosted: Wed Apr 17, 2013 9:32 pm 
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Wee cheeky sales pitch here! :lol:

If you do go ahead with the build mate, I've got an ho inlet and Subaru sti injectors for sale!

Grant

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PostPosted: Thu Apr 18, 2013 6:41 pm 
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run it on an su turbo carb and then the omex will be ok i think lol

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PostPosted: Mon Apr 22, 2013 7:15 pm 
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You could do a turbo build from anything between a couple hundred to £10k+

It really depends how much you can spend and what you want from it. The more work you can do yourself the cheaper it will be.

Mine was about £2k, i wanted about 250bhp for everyday use and that's what it's built for. This is enough for me to have fun on the B roads and basicly zero lag. It's not that expensive to get a bit more power but you end up sacrificing reliability(not just the engine) and drivablility unless your willing to put the money into doing everything propperly.


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PostPosted: Tue Apr 23, 2013 8:48 am 
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Pick up a decent FRS engine for £700-800. Job done.

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PostPosted: Tue Apr 23, 2013 4:54 pm 
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xr2rep wrote:
Pick up a decent FRS engine for £700-800. Job done.


You've got other parts ontop of that tho, inlet, exhaust, cooling system, ecu, clutch, lsd etc.


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PostPosted: Wed Apr 24, 2013 2:02 pm 
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Plans so far...
St 170 bottom end with arp rod bolts , (may even give it a quick freshen up whilst I'm at it)
2 litre blacktop head (quick freshen up as well)
Struggling to find a head gasket thick enough
Can't find a frs exhaust manifold as well
Found a recon gt28 fairly cheap and also been offered a t3 very cheap (rebuilt)
Thinking of using a zetec HO manifold ( even thinking of buying the one for sale on here already ready for turbo application.
Haven't thought of the rest yet lol

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PostPosted: Sat Apr 27, 2013 7:17 pm 
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xr2brett wrote:
Plans so far...
St 170 bottom end with arp rod bolts , (may even give it a quick freshen up whilst I'm at it)
2 litre blacktop head (quick freshen up as well)
Struggling to find a head gasket thick enough
Can't find a frs exhaust manifold as well
Found a recon gt28 fairly cheap and also been offered a t3 very cheap (rebuilt)
Thinking of using a zetec HO manifold ( even thinking of buying the one for sale on here already ready for turbo application.
Haven't thought of the rest yet lol


The ST170 standard rod bolts are good enough, same as the FRS ;)
Cometic do thicker gaskets
They come up from time to time, just be patient :)
Go for the GT turbo
Is that the inlet I'm selling, if so that'll do you nicely. I've also got a radiator and intercooler setup.

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PostPosted: Sat Apr 27, 2013 10:28 pm 
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If your using a GT28 it has a different exhaust housing to the GT25 the FRS uses so you may find clearance problems and the port on the turbo isn't the same shape so not ideal.

You can get conversion manifolds for a GT28 on an FRS and a 5 bolt downpipe instead of the V-band.


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PostPosted: Sun Apr 28, 2013 2:14 pm 
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If I wanted a budget turbo engine I would use

St170 Bottom End

Ported CVH head

Newman stage 4 Cam with solid lifters etc

Aftermarket inlet plenum

Standard rst exhaust manifold

Gt25/28/T34 turbo

Might be a bit more expensive be will be Mega reliable at 350BHP wthe the potential for more !


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PostPosted: Sun Apr 28, 2013 3:53 pm 
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why on earth would you use a cvh head?
do not listen, the days of zvh are long gone unless you have a load of uprated parts with little use.
an st170 engine with a thicker gasket will do well, as for 350bhp mega reliable, i'll not put money on that, i have yet to see a british built/tested st170 engine do that power yet.
only reason to change the st170 head is the vvt delete costs money and no need unless you have aftermarket management that can control it, standard blacktop heads will do 400bhp+ with uprated valve springs alone.

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PostPosted: Sun Apr 28, 2013 4:19 pm 
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i am definitely not going to be going the zvh route !! or cvh route !! lol
could i run the standard gt25 frs turbo for a sensible start? then later on move onto a custom exhaust manifold with a better output
is it possible to fit the 6 speed st170 box to a mk2 xr2 easily or is it major work ?

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PostPosted: Sun Apr 28, 2013 4:36 pm 
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Sean XR2 ZT wrote:
why on earth would you use a cvh head?
do not listen, the days of zvh are long gone unless you have a load of uprated parts with little use.
an st170 engine with a thicker gasket will do well, as for 350bhp mega reliable, i'll not put money on that, i have yet to see a british built/tested st170 engine do that power yet.
only reason to change the st170 head is the vvt delete costs money and no need unless you have aftermarket management that can control it, standard blacktop heads will do 400bhp+ with uprated valve springs alone.


Cvh heads have more metal in them, take the heat from a high comp engine better.

RS turbo head fitted with solid lifters and and stage 5 newman cam can do 500bhp.

Im not saying the cvh head is better, its not It flows very poorly as standard and has a combustion chamber designed on paper.

Using the st170 bottom end with a blacktop head (Creating a CR in the 9s ?) does work, but its not brilliant unless you have long duration cams. It will be fine for a road car, just dont expect to do back to back top speed runs and spend lots of time on track without breaking it.

The st170 head is even worse for heat dissipation :blub:


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PostPosted: Sun Apr 28, 2013 4:51 pm 
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xr2brett wrote:
i am definitely not going to be going the zvh route !! or cvh route !! lol
could i run the standard gt25 frs turbo for a sensible start? then later on move onto a custom exhaust manifold with a better output
is it possible to fit the 6 speed st170 box to a mk2 xr2 easily or is it major work ?



I run cast manifold and GT25 and it's great, basicly no lag out on the road. I'm just making my own tubular manifold for it, supposedly you can get about 320bhp max out of a GT25 with the right mods but it's not ideal running a turbo to it's max all the time, i would say 250bhp for everyday use.

You can fit an ST170 box but i don't think many people bother, almost the same amount of work and cost to fit an FRS box. Custom driveshafts, hydraulic clutch, cable gear selector etc but might not have to cut the inner wing which isn't that big a job anyway. The ST170 has a different flywheel and clutch aswell, dunno if they came with an LSD.


Last edited by YellowCapri on Sun Apr 28, 2013 4:52 pm, edited 1 time in total.

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PostPosted: Sun Apr 28, 2013 4:52 pm 
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it's not all about heat dissipation, flow plays a big part and is one of the reasons to fit the head.
like i said for cost, go full zetec, lots of potential for little money.
zvh's are long in the tooth and i can't think why you'd go to all that expense for the gains, the 500bhp you mention has been done by nms i believe on a cvh (i can't recall exactly), but that isn't something done cheaply at all, things like rockers had to be changed to roller items, pistons, rods weren't cheaper items, etc. lots of work for that power.
50bhp out of a zetec turbo has been done quite a few times with not massive money to keep it driveable through the rev, not that a FWD can appreciate that sort of power, 2BAR on my gt30 2.1 zetec didn't put it down too well.

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PostPosted: Tue Apr 30, 2013 11:15 am 
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Fiesta_Jed wrote:
If I wanted a budget turbo engine I would use

St170 Bottom End

Ported CVH head

Newman stage 4 Cam with solid lifters etc

Aftermarket inlet plenum

Standard rst exhaust manifold

Gt25/28/T34 turbo

Might be a bit more expensive be will be Mega reliable at 350BHP wthe the potential for more !


Replacing a Zetec head with a CVH item for a budget 300+bhp turbo engine? Are you insane? lol

Yes the poorly designed, poorly flowing and inefficient CVH head can do 350bhp or even 500bhp - once lots of time and money are invested!

A standard Black Top Zetec head with a £150 set of valve springs will do 400bhp happily. :cool!:

Plenty of people using standard ST170 bottom ends with Black Top heads and getting reliable results at the minute and makes for a fine road engine! No one ever mentioned back to back top speed runs or heavy track use?! If you're doing those kind of things you generally invest in a stronger engine!

Regarding the ST170 bottom ends - I think 300bhp is the sensible limit really.

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Last edited by XRT_si on Tue Apr 30, 2013 11:28 am, edited 3 times in total.

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PostPosted: Tue Apr 30, 2013 11:26 am 
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Double post

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Last edited by XRT_si on Tue Apr 30, 2013 11:28 am, edited 1 time in total.

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