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Author: Subject: Haynes manual "Rebuilding and Tuning Ford's CVH engine" quick question
paul the 6th

posted on 22/7/08 at 01:26 PM Reply With Quote
Haynes manual "Rebuilding and Tuning Ford's CVH engine" quick question

Just stumbled across this book on the haynes website whilst lurking for sierras on ebay and literature on amazon.

Description from the website:

"The Ford CVH engine has been used in many well-known Ford models including Fiestas (1.4, 1.6, XR2i and RS Turbo), Escorts (1.4, 1.6, RS1600i, XR3, XR3i and RS Turbo) and Orions (1.3, 1.6 and 1600i). This detailed book gives a brief history of the unit followed by advice on rebuilding and tuning an engine in the home garage, describing what can be undertaken by the enthusiast and what should be put out to specialists. It includes chapters on carburettors, the exhaust and ignition systems, and illustrates all stages of engine stripdown and rebuild."

It doesn't say anything about sierra's in there? Just fiestas, escorts and orions... Would this still be of much use to those using a cvh from a sierra? or did ford make some significant changes to the cvh after the sierra? Just wondering since this could be an ideal accompanyment to the sierra haynes manual

[Edited on 22/7/08 by paul the 6th]





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whitestu

posted on 22/7/08 at 01:30 PM Reply With Quote
It won't be relevant for the 1.8 CVH, just the smaller ones.

Stu

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Paul TigerB6

posted on 22/7/08 at 01:31 PM Reply With Quote
I personally wouldnt bother fitting a CVH engine myself - you'd be better with dare i say it a Pinto or Zetec (but what you really want is a bike engine!! ). The CVH isnt the most tuneable and you will not find it so easy to buy off the shelf parts like manifolds etc
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stevebubs

posted on 22/7/08 at 01:45 PM Reply With Quote
2 words (sort of)

RS Turbo

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paul the 6th

posted on 22/7/08 at 01:45 PM Reply With Quote
thanks for the replies guys

if you have a quick look at this thread you'll see my rationale behind going for the 1.8 cvh. I'm not too bothered about mental power/tuneability and since it's my first ever attempt at anything like this (not from an engineering background & I don't have any friends who know about this stuff) so I wanted to stick closely to what the book says. There seems to be plenty of sapphires with the cvh & type 9 'box floating around.

If I can find a decent serra with a pinto engine I'll be tempted to maybe reconsider.

Also, once I get my head around my first project, I'm going to go mental and fit a turbo busa engine to a single seater (or something along those lines)

[Edited on 22/7/08 by paul the 6th]





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whitestu

posted on 22/7/08 at 01:56 PM Reply With Quote
quote:

I personally wouldnt bother fitting a CVH engine myself



Depends what you want.

I fitted a 1.8 CVH for SVA purposes with the plan to change to a Zetec later. It made the build dead easy as all the ignition and induction bits were already working on the donor.

You can also pick up second hand Westfield tubular manifolds for reasonable money [the 1.6 ones fit].

As you say the 1.8 isn't great for tuning, but my Indy with one in wasn't exactly slow. It probably had around 100BHP with the Westfield exhaust and K&N filter.
They are very tough, quite light, compact and sound nice as well.

Depends what you're after really. I've had a few issues with the Zetec in mine and have to admit wishing I hadn't bothered to swap over on a couple of occasions.

I don't think you'll be disappointed with a good 1.8CVH.

Here's one I made earlier CVH Vid

Stu

[Edited on 22/7/08 by whitestu]

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paul the 6th

posted on 22/7/08 at 02:43 PM Reply With Quote
nice one stu

thats the ethos behind my build. I'm seriously not bothered about big power (as I've got 2005 suzuki sv650 sport which'll hit 60 in around 3.5 seconds and is good for 145 mph).

a 1.6 or 1.8 engine in a car which weighs 700kg's shouldn't exactly be slow and it will handle better than most standard audi tt's (at a guess?). It's more about the building/learning experience. Once i've finished my first one, I'll happily go for bigger power and more complex designs.

It's just a case of trying to find a decent cvh. At first glance there appeared to be loads of them on ebay but most of the serra's are dohc's or automatic chv's





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Jenko

posted on 22/7/08 at 03:03 PM Reply With Quote
quote:
Originally posted by Paul TigerB6
I personally wouldnt bother fitting a CVH engine myself - you'd be better with dare i say it a Pinto or Zetec (but what you really want is a bike engine!! ). The CVH isnt the most tuneable and you will not find it so easy to buy off the shelf parts like manifolds etc


Don't agree :-) - The CVH is very tuneable, the heads actually flow very well as standard, but with a bit more work, can flow much better - the main reason being the very large valves.......

They are light (alloy head), and very simple to work on, and the bottom end is effectively a zetec......

The main issue here is the difference between the 1.8 and 1.6, and they are quit different - Not saying there is anything wrong with the 1.8, it's just as they were not fitted to too many cars, and not much tuning was done on them......

Now then, although I said I disgree with Paul Tiger B6 - He does have a valid point (although not the pinto bit) - A zetec would really be a better choice due to cost, and power as standard.....

I run a 2ltr CVH with head work / solid lifters, double springs on Motorbike throttle bodies - it's very quick , and would beat a standard 2ltr zetec (i.e. more bhp / torque)....That said, it cost quite a bit of money, and a Standard Zetec can of course be tuned to produce more power.......

I know you have reasons, but honestly, If I was building another car, I would stuff a 2ltr Zetec in as they really are so cheap to buy now....

The type 9's mate up as do the Mt75's, but you need to be careful with diff ratios

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paul the 6th

posted on 22/7/08 at 03:17 PM Reply With Quote
it's my first build and I am scared! lol

top information from everyone though thank you very much





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Surrey Dave

posted on 22/7/08 at 03:35 PM Reply With Quote
Poppy cock and balderdash!!

I was one of the first to build with a 1.8 cvh , they always draw negative comments because tuning parts aren't generally available as this engine was derived from an american 1.9 version I believe.

But in standard form is much better than a standard crossflow or pinto, and if you sort an exhaust ,ditch the ridiculous small pierburg carb , and fit either a uk cvh distributor or megajolt ignition they are surprisingly acceptable , smooth , torquey ,simple to work on.

I also skimmed the head on mine 1mm and spent some time cleaning up the port shapes.

Been to one Lotus track day with mainly elises ,and those vx sport things, I can honestly say that I was not at all embarrassed by the performance and some on here may confirm that.

So all in all a cheap simple effective engine for 1st build.

And to concur with 'Whitestu' I have had a Zetec waiting for fitment for 2 years , but everytime I go out I think this ole 1.8CVH ain't too bad at all.

[Edited on 22/7/08 by Surrey Dave] Rescued attachment Carbs On Car 2 sml.jpg
Rescued attachment Carbs On Car 2 sml.jpg

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paul the 6th

posted on 22/7/08 at 04:07 PM Reply With Quote
that was the impression i got with the cvh...

"tuning parts aren't that readily available" does not = Crap engine

there always seems to be someone somwhere, who has a nice bit of advice like the above. Or there's usually a company who can supply a couple of bits even if they're a bit more expensive than the equivalent for another engine.

I'm happy enough with the cvh as it seems to be simple enough but will offer a great learning experience





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James

posted on 22/7/08 at 04:28 PM Reply With Quote
Some interesting CVH comments here:

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

fancy 400+bhp?


Cheers,
James





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Jenko

posted on 22/7/08 at 05:07 PM Reply With Quote
quote:
Originally posted by Surrey Dave
I was one of the first to build with a 1.8 cvh , they always draw negative comments because tuning parts aren't generally available as this engine was derived from an american 1.9 version I believe.

But in standard form is much better than a standard crossflow or pinto, and if you sort an exhaust ,ditch the ridiculous small pierburg carb , and fit either a uk cvh distributor or megajolt ignition they are surprisingly acceptable , smooth , torquey ,simple to work on.

I also skimmed the head on mine 1mm and spent some time cleaning up the port shapes.

Been to one Lotus track day with mainly elises ,and those vx sport things, I can honestly say that I was not at all embarrassed by the performance and some on here may confirm that.

So all in all a cheap simple effective engine for 1st build.

And to concur with 'Whitestu' I have had a Zetec waiting for fitment for 2 years , but everytime I go out I think this ole 1.8CVH ain't too bad at all.

[Edited on 22/7/08 by Surrey Dave]


Couldn't agree more - Again, I think the 1.8 gets a bad time, but it really seems to be only because there is a lack of tuning parts available for them - And by that I'm really talking about cams, and lifter upgrades...I know changing to an agressive cam profile on the 1600 cvh engines and moving to solid lifters makes a massive difference..I also know the standard CVH does not run the nice roller lifters seen on the 1800, so the dreaded cam wear issue should not be so bad......

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paul the 6th

posted on 22/7/08 at 05:17 PM Reply With Quote
ah now it's becoming clear....

so when "there's a distinct lack of tuning parts", there are bits and pieces out there but the pinto has much more available for it?

I think I'll be happy sticking a k&n and an exhaust (plus any other neccessary mods to the carbs/sparks) and that'll do me until I get tired of being left behind on rides out





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MikeRJ

posted on 22/7/08 at 07:58 PM Reply With Quote
quote:
Originally posted by paul the 6th
that was the impression i got with the cvh...

"tuning parts aren't that readily available" does not = Crap engine



Sadly in this case it does. The 1.6 isn't a bad engine, cam wear issues aside, but the 1.8 has numerous differences which were made to improve emissions. One of those is a particularly poorly flowing cylinder head design.

It's possible to make a hybrid using the 1.6 head and 1.8 bottom end, but it's not a straightforward or cheap job as there were so many changes.

If you are happy with the standard power output then it's fine. If you want more power afterwards then put a Zetec or something else in the car, don't try tuning the 1.8.

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Surrey Dave

posted on 22/7/08 at 08:03 PM Reply With Quote
Ferriday Eng.

This who you need if you want to put 1.6 head on 1.8 motor:

http://www.ferriday.co.uk/

Gaskets .adapter plates , pistons.

But it is much cheaper to fit a Zetec.

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Jenko

posted on 23/7/08 at 09:14 AM Reply With Quote
quote:
Originally posted by Surrey Dave
This who you need if you want to put 1.6 head on 1.8 motor:

http://www.ferriday.co.uk/

Gaskets .adapter plates , pistons.

But it is much cheaper to fit a Zetec.



Yep - Mike (from Ferriday), was the one who built my 2ltr bottom end - It's a very nice piece of kit...but it ain't cheap!.

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paul the 6th

posted on 23/7/08 at 09:40 AM Reply With Quote
think I'll hang fire on the tuning for a little while lol.

Thanks for all the info/advice/opinons from everyone





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