seans done really well with his car ,

bloody weapon lol

 

Ahhh but you can see where I got the mix up... ref Dojj's post on his brakes

 

Deffo mate, its very confusing! Its a great site tho, give it a read, I love his analysis of types of customer too!!!!!

 

hey shinings

cant belive spages old car is being sold on ebay

its not spage selling it is it ??

didnt think it would be repairable tbh ???

 

maybe not! fuck knows how he managed this

 

what u reckon jacko ??

u polish that out lmfao

cant belive its up to 300 quid on ebay ,
theres no way thats got to be repairable

 

yeah man abit of T Cut no Problem

 

the whole things twisted lol ,

look at the fucking roof !!

 

although

if you look in the ebay pics its had a new roof fitted and extensive rebuild work around the passenger a pillar ect ??


wonder who he got to do the work

and why if he paid to get the work done why isnt he keeping it himself ??

 

didnt look at it properly but if it was spadges old one it crashed because the rear end was out of line and when he let off throttle it went pear shaped

 

if ???


it is jack lol

" rear end was out of line when he let off the throttle ?? "

what the hell that mean

he was going round a corner ??

 

No, i mean unobtanium... look it up...

It's the achilies heel of the cvh. The valves are so big, they fatigue and the exhuast head drops off. Tims done it, i've done it, plus countless others despite being ceramic coated too.

 

ok ???

firstly the 45.mm valve is used inlet side rick


u just said that its the achilles heel

" there so big they fatigue and the exhaust head drops off "

but if you read what i said at the begining mate i was saying i had no intention of changing the exhaust valve size ???

yes they will be upgraded to stainless but no size increase ,


so wtf you going on about ????????

beef

 

I think he's saying that the main problem with big power CVH is the exhaust valves, whatever size they may be....they are big and heavy and do not last well at all.....i guess 10k miles would be a good run at decent power.(300bhp or thereabouts)

It's not too big a job to have them changed every 8k or so though, they are inexpensive and the whole job isn't too dear either.

 

I was told by Ollie that regular replacing off valves is a must on a big freeflow CVH head.Regards,Micky

 

but thats not what its coming across as ,

not being funny rick , but do u know what ur on about , ??????

and to be honest bud-weis i think with any high power high torque motor theres going to be alot of maintance that come with it ,


if the motorhad done 10 k , then id pull the head and sum off to inspect the motor .

like u said the valves aint that expensive

 

I've spoke with Karl about CVH tuning before.....he has spent sooo much time looking for a way around the valve problem, and put simply he said there isn't a way around it....the valves need changing on big power CVH's at regular intervals, as people above have said.

but like you say, with a modded motor these things are expected.

 

bud-weis

Correct, and yes i realise it's the inlet valve thats the big one... There is little point in going that big on the inlet if you're not changing the exhaust, and stainless isn't an upgrade - they're shit. You could rip it it apart every 5k, but i do that in 10 weeks.

 

yeah id probably do 5 k in as many months ,


and as for " theres little point going that big a inlet if your not changing the exhaust "

THATS THE EXACT REASON I CREATED THE BLOODY POST IN THE FIRST PLACE

because i was asking the tuners advice on wether the exhaust valves need changing or is there already big enough as standard , as ive had conflicting advice so far ???


sooo seeing as youve spoke to karl and ollie rick ,

for a 2.1 zvh, with max flow head running 45 mm inlets ,


what do u recomennd for the exhausts bud


beef

 

Honestly, i reckon you should give Karlos a call and get him to sort it for you....sounds like you may need to go larger on both, but remember you may need to change your valve guides if you change the material of the valves...


Karl is your man though

 

Karl did my head.

It had ceramic coated exhaust valves in stainless which did last longer than i thought they would. I am going to be doing another CVH for someone soon, and for that I am going to try a custom made titanium alloy which is pricey - and isn't guaranteed. That's a 1600 though, so CVH head is all good. I really would go to a zetec head if I were you - its cheaper and more reliable.

 

will be going bronze rifle gudes mate

 

i want to go zetec mate , for what i want its not neccasary for what i want ,

i want a torque monster and zvh's are just that


its not about out n out hp

horsepower may sell engines

but torque is what really counts !!

 

spadges car deffo had a problem with the rear end being out of line and thats defo why it crashed if i could find the post he put up id show ya but i cant

the whole rear suspension was over to one side so as you accelerate it put load on it when you release it letts it off
so dont pretend you have a clue lol

 

beefy-rst-2

I'm not sure where u have that idea from, but it's not really true. For a start, a huge torque spike is crap in FWD. The Zetec will still have a huge amount - it will just hold onto it longer. This is why the 1600's are the fastest - they produce good torque, but keep making it across the rev range, making the car very driveable. It's true that very peaky cars are hard to drive fast, but trust me u will never have a lack of torque in an RST.

I've had mine for 9 years, driven every day with countless engine specs. I'm not trying to piss you off - but the ZVH has to be the worst one

 

can you net get inconel / nimonic valves for these?