ok doke

wel as some may have read my rings on my cvh 1600 is fuked,

was gona put new rings n pistons in it but now thinking of goin zetec,

whats involed,

wil i use 2.0 or 1.8 also what sort of cost all in,i can do the work myself with a hand for a few mates,

any tips wil be great.


sean

 

http://www.quantums.info/zvh.htm

have a look at this!

 

thnks for th site mate,but unfortunitly it does look liek to much work for sean

 

I would go OR a nice specd cvh or zt

 

depends what you want. imo you can do a 2.1 zvh cheeply and get a respectable 200 bhp.

first off good 2.0 zetec bottom end. so you dont need any work done on the crank or big ends. Ł50-100

use let pistons brought mine Ł40 these can handle 330 bhp.

standard zetec rods good for 250bhp these will need machining to accept the pistons. cost about Ł30. also little end bearings ask your engine builder.

block will need machining about Ł80.

head bolts and conversion plates Ł30

cvh 1.3 cam belt tentioner about Ł25. if you cant find 1 contact me.

head gasket to allow the bigger bores, felpro Ł40 may get cheeper if you look around.

to be on the safe side arp rod bolts Ł60 and piston rings Ł50

think thats most stuff
total about Ł450

not the best build for over 250bhp but good for the money

 

oh and sump and oil pick up pipe from a 1800 zetec.

 

And waterpump

 

ok then lol use you water pump off your cvh and you bottom cambelt pully

 

Go for it mate im running a 2.1 zvh and it goes like stink with shed loads of torque

 

i really want to go zetec eh,have a ported and polished head newman cam and pulley,also got a t34 turbo so should go wel together,

if i can build the bottom end for aroun 500 i should be able to aford that,

 

go for it

 

did you not buy my mates turbo,if so its a t3 mate not t34

 

a thot it was t34
it just a stndard t3 like?

 

no its a stg3 t3 hybrid turbo,good enough for 280bhp,t34 imo is too big for your spec and 1.6cvh's really dont benefit from it at all contrary to what people on this board say

 

Go for a decent intercooler, ported head and cam and you rebuild the CVH with a decent chip you will have a reliable 200bhp.

The prices quoted for the ZVH in reality are for a engine which will still be limited by the management used if standard and not perform as expected unless you have a good ported CVH head anyway.

I hope nobody here is going to suggest that a standard non heavily ported CVH head flows as much as the standard 16v head you are going to take off.
Why do you think all the people with ST170 heads are not throwing them away to put CVH heads on them ??

 

As above, why spend extra dough and fuck about with tensioners, blanking oilways etc to throw away a better head? It's not gona run to it's potential either way without mgment, so do it properly, or just get another re-con cvh.

 

ok guys cheers for infoe,so yous rekon th cvh will be fine,the head has been ported and polished have a fullwidth intercooler and unlimited boostchip,
sean

 

'unless you have a good ported CVH head anyway.'

a standard head can flow up to 240 bhp!

 

i was running a 1.9 with a ported head a big intercooler and a few other stuff i had it set up on mfi and was rr'ed at 200 @wheels with 12 psi, imo and personal preferance running a 2.1zvh is the option for me because if i want more power i can change the management and rods and push for 300+ to get that kind of power out of a cvh all the internals need changing costing 600+ then still needing management. why im not running a zetec head is due to the cost of management as like alot of people can't afford it all at once. that just my opinion
juffer

 

what turbo was that on

 

You state that should you want big power out of your ZVH you can change the rods and push for 300+ but then state to get the same power out of a CVH all the internals need changing which is not the case.
I believe that Christian does 300+ on a standard virgin crank on his CVH and I dare say that few ZVH's are doing 300+ with the standard pistons and compression ratio of the zetec for a long time... which would suggest that the rods, pistons and compression ratio would require attention in both cases not to mention head and cam work

If your comparing the prices of doing a ZVH from scratch with all the machining work, the additional extra parts to make it all fit against a tuned CVH the bang for the buck imho is quite similar.
If I was given a standard RST and a small budger to modify it, I would do good intercooler, head, cam and chip any day over block change because untill these parts are of high quality and performance you will never ever see the performance offered by the block imho

 

stage 3 turbo technics unit

im not by all means saying that the cvh is week as i personally think the cvh is a good engine but what im saying is that if i was going to rebuild a bottom end (like i am doing) i would build a 2.1 over a 1.6 which in my opinion would give easer power gains.

 

200@wheels on a stg 3 t3 on 12 psi sounds a bit optimistic to say the least,still on mfi makes it look even worse

 

well what about 234@ the wheels @1bar on a stg3 t3??

 

how about 226bhp at the wheels, at 10 psi 2.1 zvh stage 2 T3

 

thats good going mate mine is a 1.8cvh

 

ok

 

its is a power engineering build so there is quite alot more eg head work and stuff