Pardeep

Afternoon folks!

A quick question, I'm finally going to be using the Zetec CGI block I had sitting around. Can anyone give me some information on the best pistons? The car is to be road and track driven. The aim is 400bhp on a EFR 6758 Twinscroll. Suspension on the car will be the Ohlins Road and Track setup.

Cheers

Mark Shead

My preferred choice on pistons and rods are cp pistons and Carrillo rods but it’s best to ask your engine builder or tuner.

Mark

zetaboostboy522bhp

If your using a cgi block then you want to build it with all the right parts , talk to ian Howell he get cp piston or arias Pistons and eagle rods or arrow rods. Eagle more cheaper but they did over 500 bhp on my engine without issues. I would also bore it to 2.1 litres as it would be rude not to.
What cgi block have you got , the wrc one or the mountune one which is the same as a standard blacktop but just made from cgi?

If you've got wrc then there's a shit load of work just to fit it all together you will need wrc components.

Cheers paul

Pardeep

I'm keeping mine a 2.0 lol

Mine is the WRC spec CGI. It's going to machined next week for its oil squirters.

What spec is yours? What management you using?

XRT_si

iTrader: (2)

I don't think Ian can get internals at the minute? He asked a friend of mine for some.

Standard Zetec block does 800+bhp no problem so the sky is the limit.

And yep, if it's WRC, then too much work to get it to work.

zetaboostboy522bhp

Not spoke to ian for a while so I wouldn't know but he must be able to get them made in a few weeks .

As Iam genuinely interested who do you know that had 800 bhp out of a zetec apart from szybk drag car and I think he used a cgi block. Any pictures or spec would be great. I will be planning and speccing it with ian to build mine to 650 bhp if we can at a decent boost level ( 30/35psi max ). I don't want to push loads of boost through the engine and would like it to be reliable as possible.


As for my old specked engine it did 522bhp and 395lbs at 30psi

Standard silver top block
1 mm overbore 2.1 litres
Standard genuine ford oil pump
Standard front pulley
Rs 1800 water pump
Block machined for extra breather ports x2
Standard ford head bolts
Ford multilayer head gasket

Big valve cylinder head
1 mm oversized valves
Custom cam
Ported by ian
Double valve springs
Vernier pulleys
Area six custom inlet manifold
Cosworth 67 mm billet throttle body
X4 650cc Siemens injectors

T61 turbonetics turbo
Tial 44 mm wastegate
My own tubular unequal length exhaust manifold
Pectel t2 management
Dynoed Harvey Gibbs and mapped by Ahmed bayjoo (rip)

New spec will include

a new dry sump system
Maybe new arrows rods
Jenvey turbo plenum 70 mm
Large bell mouth billet trumpets inside plenum
Billet throttle body adaptor plate
X4 450cc injectors on top of 650cc injectors
New equal length tubular exhaust manifold to my design
Probably a Borg warner efr turbo
Plug on coils
engine block modded for m12 studs with large clamping washers
Maybe going wire rung block with custom head gasket
Cylinder head machined out for larger followers
Custom cams
Lightweight pulleys
Maybe custom engine balancer
Redynoed and mapped by Harvey

Hoping for 650 bhp at 30 psi no more than 35 psi .

Hope this helps

Cheers Paul

Rsmat

iTrader: (2)

Sure Michael Clarke also had/has 800 out of a blacktop .

zetaboostboy522bhp

I dont think so matt i might be wrong but the most powerful zetec turbo in the uk was will gallops rally cross engine at a genuine 650bhp , then devil development 590 odd bhp engine , then paul johnsons at 570bhp then dan arrowsmith at 533bhp then me i think at 522bhp.
The only geunine cars i know that run over that figures shaun carlsons drag focus from america 800/1000bhp and syzbk drag racing escort. Both these cars run none standard zetec parts ie custom made heads or early ford development heads which are like rocking horse shit to get a picture of never mind owning one.
Like i said i would be genuinely interested to see specs and pics of any of these 800 bhp engines

Cheers paul

Rsmat

iTrader: (2)

I've just messaged him now ..as.he was at 560 2 years ago and I'm sure the last video it did 706 ish with a bit more boost to go ..let me find out.

Rick

Drag racing engines are different, they are on throttle for 10 seconds max. Not the same as a track engine.

Rick

Rsmat

iTrader: (2)

I don't recall saying they was...i was just saying im sure I've seen a Zetec do big numbers ..and I've just had it from a good source he did over 700 on the dyno ..unsure if it's still going or not ..impressive either way .

jonfoc

zetaboostboy522bhp

Who was that Jon , was the frs head modified i.e. oversized valves , custom cams etc.
Oh and Luca engine was 533bhp and Stuart meads mini I think that was around 600/650 bhp but it was using either 100/150 shot of nos.
I don't think the blocks are a problem , it's the heads . The black top and silver tops are very similar in terms of power ( so far proven) it's only custom heads and the st170 head that has gone past the 650 bhp mark. I know will gallops focus rallycross car was one of the best specced zetecs out there and one of the first as well and used in competitive motorsports , it had 10inch runners on the inlet manifold which was then mated to an rs 200 plenum which we all know can do massive numbers in standard form. Anyone knows you could easily get 650 bhp out of a zetec by banging massive boost through it but it's just a question of how long it lasts , weather your going to have head lift etc.
That's why iam looking into wire ringing the block and going larger proper head bolts , I want a reliable , safeish boosted engine and not a time bomb.
P Johnson engine was reliable broke records
Lucas engine did the same
Stuart meeds mini did the same
Iam just interested to see who's pushed it that little bit further on and if or what issues have they had with there spec ( apart from oil pump issues)

Cheers paul

jonfoc

nigel b

theres a fiesta tuned by horsham developments thats pushing 650hp

bassboy

Is this going into a Fiesta? Either a black or red one or something from memory?

zetaboostboy522bhp

Just watched some videos of the red fiesta and it certainly has some poke and seeing as he's doing 151 mph terminals he must the ball park figure stated.
I would like to know the spec and how much boost he's running and to see the torque curve on a graph as it looks a really well made engine.


Cheers paul

jonfoc

zetaboostboy522bhp

What fuel was it on John ? , and what boost was he running , I take it was fitted with all areasix parts inlets etc

Cheers paul

Rsmat

iTrader: (2)

Clarkys is pushing it even more ..be nice to see his goal come true .

zetaboostboy522bhp

Looks like he's tilted the engine forwards to put more weight over the front wheel for better grip , hope he's running a dry sump system with that setup?
What bhp is he after mat

That front slam panel is gonna last 1 run before it's melted or on fire lol

Cheers paul

Rsmat

iTrader: (2)

I havnt a clue what his next plans are mate .

XRT_si

iTrader: (2)

You're a bit behind mate lol

Clarke ran 650bhp a couple of years ago, then did 800+bhp last year. Standard non-CGI block, standard crank, dry sump, ported head, standard valves, Precision 6466, Jenvey inlet, Syvecs ECU, few other bits and E85.


And yep, Phil is doing 700+bhp and I think he says it's still on pump fuel. Not sure on exact spec, but similar to Clarke's from what Ive seen.

Clarke has already done 815bhp on 37psi. Should make more no; new bigger spec.

Rsmat

iTrader: (2)

Clarkys is seriously on the ball with high powered Zetec .

zetaboostboy522bhp

Yep iam well behind the times mate , 800 bhp on standard valves is going some , was he running custom cams etc . On race fuel I know you can gain another 100 odd bhp but that's still going some so well done to him. Has he wire rung the block or used bigger head bolts ?

Cheers paul

XRT_si

iTrader: (2)

Not custom cams, but uprated. Block had been drilled out and fitted with M12 head studs. It was running 2.9bar of boost on the last set up before it went to E85 etc...

Rsmat

iTrader: (2)

784bhp pull .

zetaboostboy522bhp

That's a cracking figure out of a zetec , how accurate are rolling roads compared to engine dynos etc in terms of bhp , is it corrected etc and is that whp or flywheel hp . Either way that's doing some good numbers.
Mat do you know the full spec or is it all hush hush?
Just trying to get an idea of a happy medium between banging shit load of boost through the engine or having extra work done to gain hp in areas where others haven't bothered like larger valves , extra porting , custom cams etc etc.
If you can get 700 bhp from a head with standard valves with mild porting etc then that would be great. What I don't want is to shit myself every time I turn the key .
What head bolts do they use or are they standard Allen head 12.9 m12 bolts? , are they just drilled and retapped etc and are they using a thick clamping washer for extra clamping force . What head gasket are these lads running ?

Cheers Paul

Rsmat

iTrader: (2)

He hasn't told me ..but it might say in his new feature mate .

james kiely

iTrader: (5)

absolutely mental car

XRT_si

iTrader: (2)

Clarke is my best mate, I can tell you pretty much anything about the car.

It's always been on a Dyno Dynamics rollers, known for accuracy. It's corrected flywheel power.

It's a drag engine, so doesn't need response etc... and is essentially a huge turbo pushing huge boost through a breathed on Zetec. The head is pretty heavily ported and has some tricks, which I know are secret, but it is 100% on standard valves.

I know Lee at Devil Developments has built a few Zetecs making 500-600bhp on standard valves and these are road engines.

This engine has done numerous dyno runs and quarter mile runs and never misses a beat. I know that's not much compared to what a track engine might see, but it certainly isn't a case of praying it stays together each time the key is turned etc...

The block is drilled and tapped and the bolts are regular 12.9 M12s. The washers are from an ARP kit. Everyone uses standard Ford headgasket.

XRT_si

iTrader: (2)

To update this, it appears the limits of the block are being found at last!

Not Clarke's engine, but know of another build that has started distorting the block.

zetaboostboy522bhp

jonfoc

XRT_si

iTrader: (2)

zetaboostboy522bhp

I take it its on race fuel etc , would be interested to know how much race fuel adds over standard super unleaded

cheers paul

zetaboostboy522bhp

Why not use oversized valves and have the head machined out to except vauxhall ecotec larger followers this totally opens up the cam choice for you really run an aggressive cam profile , again larger valves = more air especially when your super forcing it into the cylinders he could possibly get the same bhp for alot less boost.
in america there has been a few 1000bhp zetec engines but its a case that they get rebuilt after a few races . I know one bloke i spoke to and he filled all the water jackets with concrete and run it on methernol but it only lasted 2 runs and he was running serious bhp . He changed over to the ecotec engine in the end .
I always look forward to hearing about the zetec as it always gets slating compared to the yb but if its a 700bhp and reliable then surely its on par if not better in terms on not paying the over inflated cosworth tax
26k for a cossie engine compared to 10k for a zetec

cheers paul

jonfoc

XRT_si

iTrader: (2)

Lee read

What is the best head to use? I have heard st170 but can you fit it to a black top bottom end and what sort of power are you looking at with the standard head?