fiestaturbo.com

[ace]

if a brand new cvh was put up againt the same size brand new zetec in a race, which car would win assuming that the cars were exactly the same except the engine.

[Project]

Hmmm, prolly the CVH for bhp per litre.

The Zetec wins on revvability but going on what you said about capacity, the only true races would be 1600 CVH vs 1600 Zetec (for same capacity) or 1900 CVH USA block vs 2.0L Zetec.

The 1600 Zetec head is a little too restrictive to allow tuning and the management systems are very restrictive. Assuming identical management systems, the engine's most important attribute is it's strength.

Err, I've just talked myself into a 6' hole there haven't I?

[ace]

what about if it was against a 1300cvh vs a 1250zetec?

[Mr Jungle]

what about if it was against a 1300cvh vs a 1250zetec?

CVH CVH!

[Robin]

the 1.25s are 16v so would be quite abit faster than a 1.3

[DaveZetec]

1.3 chvs go like gooduns! i had one in a MK2, it was bloody nippy

[Dave106gti]

No contest,1.25 zetec would win no problem, forthe size they are a very good engine

[Mr Jungle]

No contest,1.25 zetec would win no problem, forthe size they are a very good engine

Not a chance

[MadcatCraig]

the 1.25 zetec is faster off the mark than my turbo !

my mum has one i have driven both !

The zetec SE engine is a stunner !

ure just thinking in terms of BHP

think alos in terms of engine design !

zetecs have the bennefit of the CVH being their predecessor years of use the zetec is bound to have modifications over a CVH lump !

[ace]

i thought though that the zetec was designed by yamaha

doing a bit of research into it it also appears that the valves in a 1.3cvh are bigger than the valves in a 1.6zetec put together. i also found out that a 1.25 zetec was designed for economy hence small valves, pistons and a long stroke where as the 1.3 cvh has large valves, pistons and a short stroke, doesn't it also have the same size inlet valve as a 1.6cvh? and also same diameter pistons which is why some people mix them up which leads to pinking.

surely this must make some difference

[moulder]

But it's a 16 valve, and is generally flowed and balanced better and is a better engine. 1.3 cvh engines are slow. 1.25 are a lot quicker, but both engines at the end of the day are slow compared to rst engines etc.

[Dave106gti]

I'm sorry but 1.3 cvh's are cr@p, how could an engine from the stoneage that constantly makes tappety ticking noises be better and faster than a zetec Also, 1.25's are very quick off the mark and rev very well - cos they were developed in partnership with Yamaha

[xr2i 1649]

i think it has 2 b the CVH on a good 2I
will do a 1600 zetec but thats it

[Mr Jungle]

i think it has 2 b the CVH on a good 2I
will do a 1600 zetec but thats it

here Here, mines just come back from the Doctors - its more or less a standard 2i 8V CVH and fup me, its a serious screamer!!

Roarrrrrrrrrrr it goes, here that induction! Its quick as fap!

[Codey]

Are you referring to a 1.6 Zetec or 1.6 Zetec-SE ?.

I've had an 8v 1.6 CVH 2i and it would not beat my Zetec-S

[xr2i 1649]

u must have had a dog then
as i spank the 16v,s all the time

[Codey]

Yeah you probably mean you spank the Si all the time! .

Nothing wrong with me motor, and there shouldnt be considering its not even 2 years old, never lost to an XR2i yet.

[Codey]

Sorry, i meant to say is that there was nothing wrong with my 2i that i had. But for comparison, i've had other cars with 8v 1.6i CVH engines and they all performed in the same way, there was nothing wrong with them. Had 2 XR3i's which if i'm not mistaken has pretty much the same engine configuration.

[xr2i 1649]

the XR3i has 103bhp and the XR2i has 108bhp std
(i think)
but u car can run ok and still b down on power
as my car was runing good then put it r road and it was runing
98bhp
C a good 8v 2i is faster than the 16v at std
as the 16v had a cat on it
but then i was saying that a 1600 CVh is faster than a 1600zetec
(and yes rs1800 will spank a std Xr2i 8v)

[ace]

ok, so maybe the 1.25 would win over the 1.3cvh as standard....
what if though the 1.3 had lots and lots of mods? does it stand a chance then?
i would have a 1.6 in my fiesta 3 but because its only my first car and first big project i stuck with a 1.3 (insurance), the only reason i chose a cvh and not hcs or zetec [ERRR] because i was told that the 1.3 was a pretty quick engine and 1.6 bits fit on it, not having driven it yet im a little unsur of performance.....

[xr2i 1649]

just go 4 small mods on the 1.3cvh
as u do not wont 2 spend lot of cash and get say
83bhp
so i say
go 4 a air filter and exhaust
and that will do
and then go get them nova sr

[ace]

its got an xr2 camshaft, twin choke xr2 carb, k&n filter and a peco powermaster exhaust, its also been gas flowed reconditioned etc.
will i be pleased with the power of the engine on this spec?

[Codey]

Oh well, i guess everyone has there own opinions about there cars performance, so to each there own ! . But at the end of the day they are all Fiesta's ! Yay !!

[Codey]

But i still think a 1.6 Zetec will be quicker than a 1.6 CVH ! .

Not really talking about the 1.6 Zetec in the Si as they were designed with economy in mind, but again referring to the 1.6 Zetec-SE found in the Fiesta Zetec-S. I know some may agree while others may not, but i'm really only drawing on my own personal experiance, and your right that my 1.6 cvh engined cars i've had over the years could very well had not been tuned to perfection, so hense giving me a bad impression of those engines. Please dont take this as an argument that.. "my cars faster than yours... etc...etc..", its just my view on the subject of CVH vs Zetec going from past experiance.

My experiance with Zetec Engines are that they are a lot more revable as standard and i've always felt that they seem to pack more torque. Take the situation with the XR2i 8v and the XR2i 16v for example. I've had the benefit of driving both, and i'm certainly aware of what it states on paper..

Both having the same 0 - 60 time of around 8.9 secs with the 16v giving 108bhp and the 8v giving 110bhp (ermm... i think??). I found the 16v to have so much more torque, it was very noticable, i dont think there was anything wrong with my 8v at that time as racing my mates in there 8v xr2i's were pretty equal. But againt the 16v was not, i'd get beaten everytime. Thats what made me change to a zetec engine and i loved it.

Well anyway's, sorry to babble on, i was just bored.

[MadcatCraig]

All you lot seem to think about is displacement !!!

bigger engine is better !

hows this a Fiesta RS 1800 kicks out 132 bhp and a 2ltr zetec from a same year mondoe is only 136 bhp !

displacement is not everything !

A 1.25 zetec SE would cream a 8v and 16v 2i off the mark these are much different zetecs to the ones in ure Si's and XR2i's

a series one zetec ie Si XR2i was pretty tug on comparison series ones had a problem with sticky valves etc thus there was a series 2 and 3 of the zetec evolution !

A 1.6 Zetec S will waste a 2i if u have Lou driving it

Beeman was tellin me heshad 130mph out of his Zetec S he has a turbo and a Zetec S as does Adrian so i think they should comment !

Face it doods u will al get beaten by a 1.25 Zetec as long as its the SE model ! its a wierd design unlike other older ford engines ! ill get a piccy of it in a bit !

[AdrianFRST]

Craig's right, the newer Zetec-SE's are sweet little engines and a Zetec-S will leave a CVH 2i off the line, when you get to the corners you've no chance!

Plus you can get near on 7k rpm before the limiter kicks in

[Codey]

Well said!, thank you i agree!

A lot of people seem to think the Zetec-S has the older engine, same as the Si, its not, its completey different and behaves in a different way.

[xr2i 1649]

i no the zetec can leave a frst of the line [ERRR] of the turbo
but do not no how it will leave a 2i
[ERRR] i have raced 2 no the road and 1 at the pod and i was a head
all the time and the 1 at the pod had exhaust and induction kit on it
i did 1/4 mil in 16-20 and he did in 16-49
but then my car is not std
(but thats wot i think)
that was last year

[Excursion]

etc etc etc yah yah yah etc

[chumkila]

hows this a Fiesta RS 1800 kicks out 132 bhp and a 2ltr zetec from a same year mondoe is only 136 bhp !

Is that a good or bad thing??!

[ace]

i personally aint a lover of zetec engines.
sure they're pretty quick but being a ford employee you get to see that they are actually quite fragile. like thin cylinder heads etc.
i think i prefer cvh engines because they are so robust and pretty strong, they just dont go bang.
but that is really my opinion.....

[g-flash]

zetec is better than cvh becouse it's 16v DOHC, a very strong bottom end it have a very high revs and a scary torque....

[Phil Si]

craig, the 1.8 and 2.0 are in different leagues...
the 2.0 has more torque, and TRUE 136bhp power, not a generous 132 or what ever!!

[xr2i 1649]

u no thats the old spin docs at ford doing there thing job

[Mr Jungle]

My CVH is Rabbit powered, giving around 500 BHp and 1560 F/t lb of Tourque