am looking at getting a new engine for me erst, I was thiing of going for the zvh with big power but a few of my mates think i should go for a cvh with big power and now i am unsure what to do
, What you think?

 

keep it as MR RS Ford meant it to be

 

big power cvh steel rods an all the jubblies!

 

id keep the cvh . go to 180bhp . if you wanna go faster than that buy a faster car m8

 

i'd go for a zvh mate if u want power! its probably one of the easiest ways to get big power with reliability!!

 

I agree with that matey!!

Matt

 

I thought you could get a lot more brake horse than 180bhp out of a cvh?Surely thats not the limit is it?Thats fook all.

 

i got over 180! i think hes thinking about on a std engine! if your goin to pay to build a zvh you can pay for a high spec cvh! and get alot more!

 

not the limit with the engine just all the problems with gearboxes/clutches being FWD etc

Matt

 

I have built a very strong CVH.

The problem is with any zetec based engine is the long stroke which creates a lot of low down torque meaning that when the turbo comes on boost, you get a sudden torque spike. This is not good for traction. Plus the fact that over a certain rpm, the power begins to drop off (usually 5krpm). Due to the angle of the rods that the long stroke creates, it also loads up the bore thrust face and promotes piston and bore wear. This can all be rectified by having a set of rods and a crank machined to reduce the stroke.

My CVH comes on boost at 3k and starts pulling. At 4k rpm it starts to pull stronger and by 5 k it's really pulling hard. This progressive delivery of power helps traction and your gearbox to stayin one peice (no sudden surge of power). It may not feel as fast as the boost comes in but the bonus will be that you actually have grip and start going somewhere.

Also, I have fitted a Stage 2 Plus gearbox with ATB diff from The Gearbox man just to help issues around broken gearboxes...

 

mine used to be like that cus i had no pre load on the actuator! but to be honest i love the fact that it gets a surge thats what it felt like when i first got it! ok so i loose traction (in these wet conditions) but come summer it should grip and grip! i love the fact that my turbo comes in hard and fast! rather than not being on full boost till 3900rpm i get like 15psi before ive hit 3.5k! then max boost just after! come in like a train i love it!

 

Mine is at full boost at 3k! It just makes more power the harder you rev it.

The surge makes it feel fast I agree cos I used to run a peak of 22psi then drop to 14.

 

mines cvh 16 its running over 200 brake now on standard pistons thats the max i will go now love it clutch is starting to slip now

 

 

My frst pushes out 225bhp any day ov the week and that was on my STANDARD cooler but iv recentley added a GRS cooler so im hoping for a little more power soon, but its got everything you can think ov lightend and balenced,mahl pistons,t3, injectors, blah blah blah. i love it with the stage 2 box its a handful but worth it. as has been said before you can just rev to the limiter

 

oops forgot to say its a 1600cvh

 

I would say stick with the cvh..

 

CVH 75% [ 15 ]
ZVH 25% [ 5 ]


Ok but now the question....

1.6 CVH or 1.9 CVH when going for 220-240 BHP ?

 

all depends what you want from your car . i like reliability . taken my S1 to the nurbergring , cologne / koln , northern italy and regularly to friends near le man . i know 100% its gonna get there an back . all these boys who tune there cars to the limits have they got the same faith.........always more fun driving them than in the garage all the time or back of AA wagon

 

Areet there hatch, well i had a 1.6 cvh with a few mods and was impressed for about 2 weeks until it blew up i have since built a 1.8 zvh and it runs 180 under the same mods where as the origianl 1.6 only run about 160 if it was lucky on a good day.

I'd say zvh all day long as they are a much nicer drive while delivering more bhp than the all or nothing high horse powered cvh's. but i'm biased as i can build them for nothing otherwise id probably go for a cvh for the same money if i had to pay.

 

depends on what you want - i couldnt fault my zvh for what it was built for!

 

if a 1600cvh is setup correctly (fuel timing and bigger intercooler) it is reliable for 200bhp

 

ive just rebuilt my 16 cvh, a lot of mods and 220 bhp should be within reach, shlould be plenty for a fwd car

 

oi oi squire . id say cvh all day long EXCEPT if you get your zvh built by this handsome devil id have a zvh

 

same here my ZVH is an animal!!! i love the fact that it comes in hard and fast!! but each to there own.

 

1900CVH is in the same boat as the Zetec based engines but I also believe that the gudgeon pins for the 1900 rods are thinner.

The 1900 is a high torque engine. The Zetec and 1900 types will be nicer to live with day to day as an every day car but ultimately flawed in their design unless expensively addressed with new crank and rods.

They are by no means a bad engine.

 

Zetec crank and rods are currently VERY WELL PRICED in USA. ZVH or straight to the Zetec Turbo!

 

Please, explain me!!!
Here in Brazil we have Endura, Zetec, Duratec 8V or 16V, but didn't have the CVH engine because in the 80's Ford used here the EA827 VW engine (a big shit), so it's quite diffilcult to understand what is the ZVH? It's a CVH with a Zetec header, ou a Zetec with CVH's header???
What's the advantage of build the ZVH... It's better than the Zetec?!

 

ZVH = Zetec bottom end with CVH head.

It's not better than a Zetec in my opinion.

 

a zetec turbo is beeter than both in my opinion, ok a cvh can rev but u can change stroke etc of a zetec if you wanted but makes alot more power with just a little more money and head etc flow well standard unlike the cvh

 

my cvh is drivable ,but not very fast lmao,funny how most the fast cars arnt zvh or zetec lol does that not tell you something ?
tim

 

Am a bit lost here aswell lads

ZVH or Zetec turbo with cossie managmenet ?

 

Ive had both and much prefere my zvh

But if i was to do it again i would build a monster of a zetec

 

cvh 4 me!

 

FACT: The Fastest recorded fwd Escorts are CVH

FACT: People have got over 300 bhp out of the CVH

FACT : 1.6 CVH Escorts have gone over 170mph

Question : how fast can you afford to go, how much more power is realistic in a FWD car, is a big money zetec really going to make it faster ?

 

When you get a Zetec it comes FREE with a 16v head, now some people think its a great idea to remove this head, pay a machine shop to block up certain parts of the block so that you can fit a 8v CVH head which costs money because it did not come with the engine and then have it ported so that it is just as good as the 16v head which has been removed.

The justification for this in many occasions is that the person already had a decent 8v head they wanted to use, although selling it and putting the money towards porting the 16v head would make more sense to me.

Still don't get it myself

 

I'd say full zetec if you have the money, i think its the smoother engine and is alot easier to extract 300bhp+ from.
just imo as there is obvio a big case for big power cvhs and zvhs but if it was me and i had a cash it would be zetec without a doubt.

 

Each to there own, its all down to how you want the car to drive but just remember that running a big power zvh or cvh or zetec turbo you will want a proper gearbox box/clutch/brakes/gearbox mounts/ it all mounts up!

 

Never a truer word spoken!!!Getting the 300 BHP is the easy part,if expensive.But getting a gearbox to handle that power means big money or serious chassis mods to take a MTX 75!!!I've been doing tackdays in my RST for the past 14 yrs,and only recently have splashed out on a bigish BHP engine.I went 1.6 CVH,as it has a proven record for reliability and power,mated to a Stage 2+ Gearboxman box.Will be at the 2 biggest RS trackdays this year.Regards,Micky.