Just after a bit of advice, following my post with reguard to my block fucking up with style on number 4(nice little crack) I have looked at the cost of a new block,if i can even get one i could go for nilesic liners.......

This is were i need advice i have heard there are issues with ring seal and would they be good on a road car or are they race only/realy big power.
The other option is normal liners but are these any good at 500 bhp ish plus gas.


cheers in advance andy

 

how much work is involved to liner a block?

 

Nikasil liners?

check out the Mountune website for prices

 

what about fitting?

 

from what i can see its a major over bore then a steel tube is pressed in at a massive pressure then rebored to size, sounds simple..........but im sure there are more things to think about, somebody must have done it?

 

who does it and at what expense? mine doesnt even use liners at all so im going to worry when the boost guage rises

 

it is expensive but at the moment there are not many new 200 yb blocks left ,so prices have gone up. Mine is the ybp so any new block would have to be machined to take oil squirts ,plus long studding and boring all adds up the same looking at options

 

for standard liners any engineering company can do it

alls it is is over bore the orginal bores for new liners to be fitted

the block is then heated up will the new liners are in liquid nitrogen

once the block is to temp then the liner kegts some silicon sealent and the liners are just hand fitted, they are then pressed into the bore to a required pressure, and any excess silicon is wiped clean,

once after this then they are machined for size of pistons and rings etc and skimmed flush to the block head

nikisl liners id imagine are the same principle except that with the nikisil liner they can take a lot of amount of boost and are very hard and strong so ive heard, the pistons do need different rings as normal rings would jsust be destroyed

prices are around £1500 for nikisil liners to be fitted then you need to get rings to suit your pistons

i dont know how long they would last though

 

i'll take my chances

 

This is what i have been looking into, im trying to work out my best options ,from what i can work out the material of normal liners is to a better grade of the block material ,but i am concerned about stability at high power

 

I have between 400 and 500 bhp depending on what my car wants to do on the day

I have a liner in no 2 after melting a piston in Oct last year.

It has held up to 2000 miles of mapping and Scotland road trip.

And then a further 1500 odd miles of hammering to, round and back from the Ring.

Will be on a Rolling Road this Sun, and hopefully at Combe the following Sat. My car gets hammered, and the liner I believe is still in there

Si

 

Si, i can understand that statement as when Stu@MSD introduced you to me it was with the comment, "This is SiB - owner of the world's least reliable cosworth"

 

...std liners are fine..they are stronger than the original block...i always run them!

 

Cheers for the feed back nice to know im not making a big mistake, think im going for the nikales liners ,ten stud and see how it goes at least then in 12 months i can strap on a gt35 and turn up the boost