CVH engines

[Strikey]

I have a mk6 1.4 escort cvh

 

What is this i here them being good tuning engines if so what is there i can do to tune mine. I want that extra power for when i am driving around, i had a exhaust but it sounded really loud when taking 2 minutes to get to 40mph so converted back to stock. i have k&n air filter is there anything else i can do?

 

been looking around and all i see is cvh and conversions i don't wanna swap engines as

1. its hard finding one

2. its lots of money buying and getting someone to fit

3. i would have to tell insurance that its a bigger engine which at my age would not go down well!

 

Thank you for all replies

[Ahmotorsport]

Pair of Weber 40's or 45's and a Kent fast road cam and vernier pulley.

 

Not much power can be extracted from CVH's, but they're the best ways of doing so.

Edited March 16, 2012 by Ahmotorsport

[shawdreamer]

I have a mk6 1.4 escort cvh

 

What is this i here them being good tuning engines if so what is there i can do to tune mine. I want that extra power for when i am driving around, i had a exhaust but it sounded really loud when taking 2 minutes to get to 40mph so converted back to stock. i have k&n air filter is there anything else i can do?

 

been looking around and all i see is cvh and conversions i don't wanna swap engines as

1. its hard finding one

2. its lots of money buying and getting someone to fit

3. i would have to tell insurance that its a bigger engine which at my age would not go down well!

 

Thank you for all replies

 

I assume yours is a 1.4 Pte Efi Cvh? (identifiable by the alloy "Efi" emblazoned alloy inlet manifold)

 

In which case Id save yourself a shitload of messin about with the webbers and settle for a simple good service to eek out the very last Bhp the tiny underpowered gasping lump can give because in the relatively heavy chassis of a escort you'll never get anything but struggling power gains, the cars just too heavy for such a lightweight engine, AT BEST Id say you'll get back a fair degree of acceleration from a service (depending on your current engines state obviously) but you'll not get anything worthy of throwing significant money at it in the way of torque or speed/power gains.

 

Take it from a fella who's got one parked outside and has played about with the variables and at best got a bit of extra pickup using a 1.6/1.8 box on it instead of a 1.4 (gear ratio difference is all) but nothing worth cheering about.

[kelvin]

savr your money and wait for an early mk5 1.6 efi to come up local.

break it and keep the engine, box and ecu.

 

A 1.4 cvh is never gonna perform well in a mk6 escort.

 

If mods are declared your insurance would probably be the same as putting a 1.6 in.

 

Garage?

 

A decent set of tools

engine crane or a couple of mates

patiences

 

it'll be easy swapping cvh to cvh

 

check with your insurance, both ways and see what they say.

 

A Decent set of 40's will cost near on £300, you could pick up a 1.6 cvh car for that and make money on it.

[supersport]

what sort of mileage has the engine done? as the cam is a service item and it could be worn. a new cam and a set of lifters

will help to restore lost power.

[Ahmotorsport]

Out of the many CVH's we've had come through our workshop that we've built, not one of them has eaten a cam, don't know where it all comes from.

[shawdreamer]

Out of the many CVH's we've had come through our workshop that we've built, not one of them has eaten a cam, don't know where it all comes from.

 

 

1.4's barely have the guts to push a perfectly functional piston up and down even out of gear, cant see it having the power to even scratch the cam........ Im with you on that one

[Ahmotorsport]

Out of the many CVH's we've had come through our workshop that we've built, not one of them has eaten a cam, don't know where it all comes from.

 

 

1.4's barely have the guts to push a perfectly functional piston up and down even out of gear, cant see it having the power to even scratch the cam........ Im with you on that one

Ha Fair comment

[etrebus]

Out of the many CVH's we've had come through our workshop that we've built, not one of them has eaten a cam, don't know where it all comes from.

the cvh used to suffer from accellerated cam wear but was more to do with black sludge build up (black death) .regular good quality oil changes and it should be fine

[Ahmotorsport]

Out of the many CVH's we've had come through our workshop that we've built, not one of them has eaten a cam, don't know where it all comes from.

the cvh used to suffer from accellerated cam wear but was more to do with black sludge build up (black death) .regular good quality oil changes and it should be fine

Oh i seeeee, one person forgets to service his motor, his cam gets eaten, so he tells the world wide web that the CVH eats cams and it's all stemmed from there?

 

It seems to be forgotten that you have to check engine fluids, i make it my religion.

[Stu]

CVH's do eat camshafts considerably faster than a Zetec, for example. After 100k miles a zetec cam barely has any wear, but a CVH one will be toast.

 

Not running a new CVH cam in too will destroy it quickly.

[Strikey]

So would it be best getting my cams checked or are they easy enough to check yourself? If replaced that will get my car back upto scratch again then

[Ahmotorsport]

CVH's do eat camshafts considerably faster than a Zetec, for example. After 100k miles a zetec cam barely has any wear, but a CVH one will be toast.

 

Not running a new CVH cam in too will destroy it quickly.

Ahh, that's a bit different to saying its a service item (I know you didn't say that) 100k miles was good for a 1980's engine.

 

Also, it depends on how you look after them, Mike with the focus bought a Duratec and the cams were shagged after 125,000 miles.

[fonfe]

Cost me the same to insure my mk5 as a 1.6 cvh as it was to insure it as a 1.4.

Think this is due to the engine being available in the car from new so it's not really a big modification as its like for like replacement just upping the capacity.

[Georgio]

I am afraid you can't do many things to give some poke.I had a 1.4 CVH for years,and tried cams,filters,skim the head,exhaust,free flow cat...even a reprogam in the ECU.You name it,I've done it lol.I wanted something better but didn't want to spend money on a bigger engine.Nothing helped more than the cam,but on the other head,it's money in the bin I am afraid.Trouble with the 1.4 is the tiny valves in the head,whatever you do,it will never breath right.So my suggestion is,save some money,and go for a 1.6 CVH,preferably EFI.It is the best CVH you can install in there,and has potential too.