cvh why not?

[hotrodholty]

just wondering why everyone is so against the cvh, when i was a kid my mum had a couple of xr2's, they seemed petty quick and i know the rs turbo aint no slouch, i know its not old skool and tappety most of the time but with the huge amounts of power the plastic fantastic gang seem to get out them why not rwd one, they came in a sierra so it must be do-able at quite a low cost, so why has'nt it been done?

[Guest cortinamad-gonetoo]

because pintos and crossflows are much better so theres not much point chucking money at a cvh

[Gonzo]

From what I've read, it's because camshafts are classed as a service item [as in they eats em for breakfast] due to the ridiculous poundage on the valve springs to try and stop valve float at high revs. And you can't rev em above 6/7k because of it.

[Conor]

Here's why not.

 

They warp heads and they eat camshafts. Uness you change the oil every 3000 miles, they sludge up at the drop of a hat. Also down the back side of the CVH (drivers side on RWD) at the flywheel end, there's an oil return pipe that goes into the sump. Under the bottom of that pipe is a ^ shaped plate. It serves as an excellent crap trap and blocks up regularly resulting in a smokey joe rattling clunker.

 

No point bothering with them at all unless you go injection because the carbed versions produce the same BHP/litre as a Pinto.

[richie_stix]

http://www.pumaracing.co.uk/CVH.htm

 

this guy seriously knows his shit! have a read (may take several before you understand it! )

[richie_stix]

or you could make a 'ZVH'... CVH head on a 2ltr zetec bottom end? again, from pumaracing...

[Gonzo]

Yes, but the whole problem with CVH engines IS the bloody head! Why ruin aperfectly good twink by bolting one of those nasty-ass top ends to it?

[Fiesta Steve]

I know it has its problems but when tuned properly can produce very good horsepower.

 

I had an RS 1600i that had mechanical lifters, sounded the tits, went the tits

[Joe-ashtonmobile]

if you build a proper one then no problems they make great power sound the tits and its different only if its a shitty old one then it aint ganna be any good dave reeve ones lovely and goes well so who can put him down for that THERE AINT NOTHING WRONG WITH A CVH

[Jimbob-Squarepants ©]

I love them... very under-rated & better than a crossflow

[5hane]

I love them... very under-rated & better than a crossflow

 

YOU TAKE THAT BACK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[TwoLitrePinto]

there are actually engines that are better than xflows people

 

not saying a CVH is but in my opinion cvh is a good engine, reliable and very easy to work on.

 

i wonder has anyone ever got an 1800 5ierra one and put the block under there xr2/xr3 heads? i know i would

[BIG G]

great engine i had 200 hp from my rst and no probs for 3 years....

 

Get one fitted

[5hane]

there are actually engines that are better than xflows people

 

 

?!?!

 

 

 

 

 

 

nah i know there atually really good, u can get over 200bhp ot of them cant you ?

[Fiesta Steve]

 

i wonder has anyone ever got an 1800 5ierra one and put the block under there xr2/XRwee heads? i know i would

 

I have, its not that simple....

 

Its probably easier to use the zetec bottom end, then if you going to the effort you may as well use the 2 litre

[davreeve]

I wont say they are better than other engines but they are certainly no worse.Mine has been thrashed to within an inch of its life on the strip on a regular basis and does the school run etc the next day with no problems.If i got it set up on a rolling road i have no doubt it could do a high 13 second quarter mile time and still return over 30 mpg.A reliable 140-150 bhp is possible using standard rods,pistons,valves etc .

I only fitted a cvh as i could not find an x-flow at the time but now i,m glad i did.

[razersedge]

the 1800 cvh was a crap engine plagued with ring and compression problems i had one in a sierr.a some years back and i changed the engine 3 times in 5 month's all with the same problems rings and oil seal's 2 of them smoked so bad i got nicked and one of them lost its compression over a week and then wouldn't start these were all second hand engines but 2 i pulled out the cars and they were 65K and 75K engines, i spoke to a few people in a scrap yard and they said they refused to sell them because they had every one back they sold, might be ok from new but not up to long life driving

[caprinerd]

I wont say they are better than other engines but they are certainly no worse.Mine has been thrashed to within an inch of its life on the strip on a regular basis and does the school run etc the next day with no problems.If i got it set up on a rolling road i have no doubt it could do a high 13 second quarter mile time and still return over 30 mpg.A reliable 140-150 bhp is possible using standard rods,pistons,valves etc .

I only fitted a cvh as i could not find an x-flow at the time but now i,m glad i did.

 

you forgot to say your wife drives it to work some eve`s as well, saw it there tonight

[bmxdave]

I love my CVH Turbo.

 

Of course its rattly, but its no worse then a pinto if looked after. God, i had far more problems with my Pinto top end. If your really bothered fit solid lifters. Itll still wear through cams but its not the end of the world. I hear the head design is supposed to work as well as a twin cam but using only 1 cam and 8 valves to reduce cost, so think of the price of cams for a Zetec and you can budget for 3 or 4 CVH cam changes.

 

I say go for it, at least itd be different.

[jamesmk1]

when i was 18 i had a 1.8 cvh 5ierra that i put through hell from cold.

did 40k in a year in it and it did not not go wrong at all. (but did use a lot of oil).

the last 5ierra i had was also a cvh that a got of bigkev with 112k on it, i sold it on 120k. i saw it last week still going strong.

[Mr Sam]

got to say i allways dissed them and hated them my mk6 escort ive just finished with 1.4 EFi cvh apart from the air sensor snuffing up when it got dirty the engines never let me down ive had my foot on the floor everywhere and ive only put oil it in once (that was only because the oil light came on )

 

its still going strong leaking oil from the rocker gasget and oil filler but what can you expect from an engine with 150k thats not had a service in the last 10k and thrashed everywhere

 

it wasnt quick but it has been reliable and daves mk1 fiesta seems togo pretty well on one, im also now getting a liking for zetecs

 

 

 

 

 

but still x'flow/pinto all the way, old skool rules

[richie_stix]

i don't get the love for the x-flow? the pinto seems a much better choice (despite it's boat anchorage!) to me?

 

never driven a good one so can't really say much but they seem a lot of effort to tune to a high level of bhp/torque?

 

probably going to get e-castrated for this!

[Gonzo]

To be honest I'm not a big fan of 'em either mate. A lot of hassle for not a lot of reward in my opinion.

[Guest cortinamad-gonetoo]

theyre not bad for the cars theyre in

 

but going back to the original question why doesnt any one rwd them or use the 1.8 cvh s i e r r a engine

 

as i said simple answer the xflow or pinto are far better and its a waste of time doing a cvh rwd

 

or you gou up the redtop or zetech route

 

waste of time and money rwd ing a cvh

[Russian Bear]

Me old man prides himself on his 2ltr CVH Escort.

He rebuilt his original 1.6 CVH using a 1.9 American CVH block overbored by Ferriday Engineering.

Fully opened up, Ported and Polished head by Cylinder Head Developments.

Using its original efi management and calibra turbo injectors made 142 Bhp and 147 Ibs Torque on the rollers...next up throttle bodies.