timsrs

I have been looking into this.


As most 200 blocks now have been re-bored within an inch of their lives.


What are your thoughts on liners.


I am planning on running around 500 BHP and looking at the bottom end to cope with the power.


I am sure if I could find a good 200 block it would cope, but they are few and far between.


Is anyone running on liners are they " once fitted forget ".


I have heard of Nikasil or Steel liners also what's peoples thoughts on both.


Cheers

ajamesc

I've just had liners fitted to my block iron ones which you can re bore. The problem you have with nikasil is its one use only.

timsrs

OK Thanks


How much did this cost if you don't mind telling me....


And who did it ?


It means that I can purchase a used block that's probably had its last re-bore.


When fitting liners are they stronger than normal....

ajamesc

Liners were a grand not too sure on fitting as I had a few bits of machining done at well as fitting them. It was done by the machinist m.a.d uses

timsrs

Thanks


Do you have contact details of the machinist.


On the lookout for a 200 block.

costina

iTrader: (1)

Try westwood liners they are steel type. Can also be made to your spec.

turbotrev

I recently had my block lined, it was over bored for its Pistons on its last rebuild so while it was at NMS recently for loads of engine work we decided to send the block off to his machinist place to be lined so it's all spot on correct.
Was around 1500 with all the labour.
Karl says its stronger than ever how it is now

Cheers Paul

Caddyshack

Worth looking at long studding plus piston oil jets whilst being done. Give Mark Shead a call. Just google his name.

ajamesc

I considered oil spray jets and Mark told me it's a big expense that's not needed with a standard crank shaft. So the money's going towards something else lol

costina

iTrader: (1)

why ?The small turbo block has them as standard and means you can use a pinto oil pump at a faction of the cost of a yb one which are getting thin on the ground.

ajamesc

No idea mate but I'm going 680 and it's fine without them so im not using them. It's expensive enough as it is so if that money can be saved and it's still fine then I'm all for it lol.

costina

iTrader: (1)

fair enough. Need to update your thread and get some more pics up.

Mark Shead

Jets and machining is around Ł600 so its expensive to do and I only recomend doing it if you have a long stroke 8 counter balance crank as the counter balance hits the spray bar and it can only take a certain type jet to miss the rod.

Mark

Mark Shead

Spun grey iron liners are ok up to 500hp as long as spec ok, Ductil Iron liners are good for much more again depending on spec and these are what I mostly use,
Steel needs to be nicasil coated and ultimatly the strongest but sizing of pistons is much harder and if you damage coating the liner is scrap.

Mark

Ridgey

iTrader: (5)

The rally cross engines built by the likes of Julian Godfrey start with modifying the block to Wet Liners and Long Studs

Caddyshack

What is a wet liner?

Thanks Mark, I think I wrote about oil jets as had looked at the for the long stroke with you. Thanks for clarifying.

Mark Shead

Its where the water touches the liner rather than the dry liner is instaled in to the bore, There are pros and cons of both types.

Mark

jontysafe

I've decided the belt and braces approach is best. Going nicasil wet liner, oil spray jets and dry sump.

I don't think my shallow winged and gated sump was good enough and contributed to the shells wearing.

Don't forget with nicasil liners you also need titanium coated rings.

costina

iTrader: (1)

your really going to town on yours.
you about next sun eve?

Pm'ed you.

jontysafe

Leave for Thailand that day for two weeks, rain check?

We've actually recently dialled the build back a bit as in the words of the engine builder it will be a "uncontrollable coffin"!

How's yours running?

ajamesc

How much power are you going for

jontysafe

No real target to be honest. Previously ran about 430bhp and was pretty terrifying. Was running gt30 and Siemens 83lb blacks on a Reyland built engine. We were restricted by 2wd inlet and 4x4 exh manifold.
Basically I want to extend the power band and Rev to 8500 safely. We're going solid lifters for this, arrow crank and Carrillo long rods. I have a set of 9.5:1 pistons but won't run that high as id have to use race fuel all the time.
Idea is to have usable power from 3300-3400- 7700ish whether that will actually happen or not is debatable.

Sorry for thread highjack

I went wet liner as the peak cylinder pressures we were aiming for are high (bringing boost in early). My block would have been borderline at +1mm.

ajamesc

Nice should go really well mate! I'm using the longer rods as well and different pistons solid lifters too in mine. Sticking with a standard crank myself as its ok with the power I'm going for. I had to draw the line somewhere lol it's not a cheap game to play

jontysafe

Crank should be absolutely fine, I managed to get a good price on a package from an ex Julian Godfrey rally cross engine. Forgot to mention it has billet crank caps as well.

turbotrev

Sounds like it's gonna be awesome mate.
What turbo are going to be using?
James your going efr I guess?

Cheers Paul

ajamesc

Twin scroll 9180 on mine most likely

turbotrev

Nice

Cheers Paul

jontysafe

I'm probably going efr as well.

Depending on timescales maybe the new version of efr7163 in 2016