what do people use, and what do you rev to
what are the ones that martin sells, are they a straight fit without modding the head
or are isky the way to go

cheers wenny

 

iskys mate, drop the valve spring platforms and your away, the engine in the old chaps escos was taken to 9200 and theyre happy all day long

 

jimbo, drop the valve spring platforms, is that head mods, i was trying no to take the head off lol

 

if your going to track it and going to use constant high rpm then solid lifters is needed too

 

wenny, yes mate, completely strip the head, its worth doing imho and going solid lifter, do it all in one go, to do solid lifter it is a bit of work,

headwork, iskys, solid lifters, cams that suit solid lifters (im sure theyre different for some reason ?!) then you have to do all the tappet shims, its a long job, but give it 8k all day with no problems

there are some new "anti pump" hydraulic lifters, apparently tested at scs, but i havnt heard of them, but im not at work all the time so its possible they have !

wether theyre good or not, i dont know !

jim

 

ive just fitted newman double valve springs no mods to head straight fit dont know how good they are yet though, heard good reports about them

 

if you go solid lifter route, you can apparently use diesel 1800 solids and VW buckets, but i've got no experience with them

these guys also do solids http://www.arrowprecision.co.uk/

 

see i dont want to go that far with this motor,this year. i have another motor that im going to get built up for next year with bigger mods, not sure what yet
but this motor is being mapped at the end of the month and have been advised bd 16 inlet, bd 15 exhaust cams with uprated valve springs would help

 

i used martins double springs, they were spot on

 

what about kent double valve springs? VF34 I believe? Are they straight fit into 2wd sapphire?

 

how much were they mate

 

not heard of anyone using these springs in a YB, stick with the tried and tested above ^

 

only around the 100 mark,

i ran bd 14/bd16 combo to 8k with no issues at all,

depends how high you want to rev tbh, if your not going solid lifters then 8k is absolute tops imo anyway, and these are way up to that

id speak to martin and see what he has used them up to...

 

cheers mate, ive pm`d him

i wont be going past 8k

 

they fit really nice, well designed

 

Jimbo.. Ever wondered why the platforms need machining for Iskys??? I guess not!

 

now martin, did you get my pm

 

so they dont become coilbound (thats the word) ???

 

So if they were originally designed for that application why would they become coilbound??? The answer is in the question!

 

No mate but if you emailed I was on the rollers all day so wouldn't have seen it.

 

it was a pm on here mate, 30 mins ago

 

so they wernt designed to go straight in a yb, just something someone decided to make fit to the yb head ?

jim

 

Just checked... NO PM!!

Jimbo, well done!

 

resent see if you get it now, stupid computers lol

 

now onto the question, in your opinion is it worth doing the head work to fit iskys.. ?

or, is there an alternative with similar stregnth that go straight in ? eg yours ?

 

so am i reading wrong or arent isky valve springs meant to be in a cossie? they get used so often i assumed they were.

oh,martin i will call you tomorrow round 9.30 if i can get 10 mins away from work

 

i see more work soon lol

at this rate i will never getr on to building mine

 

Yes there is but I'm saying nothing as I already have an infraction because of one moaning individual, at least I know who it is!!

 

you know it makes sense lol

 

we cant even talk about springs now ?!?!

will pm you sometime then

 

is this the infraction we were talking about before my holiday mart or another?
bloody joke now.


jim,mind you dont mention your dad builds engines with them springs in or you may get another too or are you allowed to mention only your dads own engine?

 

i dont know anymore im just keeping it zipped lol

 

lol, better edit your first post then jim.

 

I used kent VS 34 in a nasp cosworth and reveed that to 9k with no head platform mods at all. no worries.

 

As those peeps for a mod free solution - my head had VF34s which I think required no mods to the head. I never fitted them, they were done by the head machinist, but I'm sure he said they were a direct swap.

Or you can go to www.reyland.co.uk - I'm sure they do a mod free swap in spring. Might be best to ring them on 0121 458 6010 the gent who runs the place is a busy chap so 2 mins on a call will get a quicker answer than writing him a 2 page PM!
Si

 

I also know a person who used kent double ones in his 500+ bhp cossy engined 4x4 kit car. And as I know he also didn't modified his head or platforms. Who can confirm that KENT double valve springs for cosworth can be used direct swap without modifications?

 

We sell double valve springs that go straight in, no mods to the head at all.

In stock @ Ł139.00.

 

but what about KENT springs?

 

too late stu ive orderd them off martin, got a good deal on all 3, you need to inform wil of what stock you have lol

 

I used piper double valve springs, fit straight in.