850 T5 Kompressor Project

[claymore]

I think that's much to much of a generalization, the reason the volvos split the liners is because of the stupid design of having a 10mm deep expansion slot at the top.

[EddyP]

When I was at college years ago we where told that in an ideal world a 1.0 litre N/A engine would produce 100 bhp, when you turbo a 1.0 litre engine in an ideal world it would produce 200 bhp, but as the internal combustion is so poor in turning air/fuel into power it would only produce about 60 bhp N/A or 120 bhp turbo`d.

So on those lines a 2.3 turbo`d engine in an ideal world produce 460 bhp.

Anything above this figure you are asking for engine failure eg, split liners.

Sorry but thats absolute rubbish.

There are plenty of engines out there, some even production engines that do more than that power per litre without regularly going pop.

Eg. Mitsibushi Evo VIII - 405 bhp from 2.0L or Suzuki Hayabusa GSX1300R - 197bhp from 1.3L etc...

[oblark]

Sorry but thats absolute rubbish.

There are plenty of engines out there, some even production engines that do more than that power per litre without regularly going pop.

Eg. Mitsibushi Evo VIII - 405 bhp from 2.0L or Suzuki Hayabusa GSX1300R - 197bhp from 1.3L etc...

motorbike engines rev a LOT higher than car engines

[claymore]

motorbike engines rev a LOT higher than car engines

And?

[EddyP]

motorbike engines rev a LOT higher than car engines

You didn't say it's only 100bhp/litre if they rev to 8k.

[Harvey]

I think that's much to much of a generalization, the reason the volvos split the liners is because of the stupid design of having a 10mm deep expansion slot at the top.

Or is the slot to help with cooling around the head gasket area,remove any traped air aswell the expansion.

[Harvey]

I have seen a lot of talk that the same clyinder liner seams to split is there a reason why that clyinder most of the time.

[claymore]

I'm not sure about that, i think it's pot luck. the liner thats split on mine No2 is different to the ones on my replacement block No3 and 4.

[smithy]

Also if you use the 2435 block and crank with s60r pistons and rods you drop the piston down the bore abit that drops the compression less heat on full boost.alot of peeps run the blocks with high boosting small turbos that produce alot of heat .

[claymore]

I've decided to repair my block rather than go through the hassle of swapping everything into the other block.

The first pic shows a normal expansion slot:


Next pic shows the closed up slot and you can just about make out the crack


Next three pics show the shims and JB Weld in place.

[Wobbly Dave]

what's a JB weld?

[M-R-P]

There's always something on this thread that makes me go "wow". Keep it coming mate.

[claymore]

what's a JB weld?

Liquide metal Dave, withstands heat, pressure petrol, etc.

[t5 pete]

How are you repairing the liner colin?

[claymore]

From what I understand, and looking at my other block, it's just the jb weld and shims should stop the crack from opening under pressure.

[claymore]

Started on this today:

[Harvey]

Looks like its off to the alu welder.

[claymore]

Looks like its off to the alu welder.

Not yet, there's a lot more to do yet. But here's a few more bits:



I need an injector loom, if anyone's got one spare.

[Harvey]

Will the ecu handle the extra load of the extra injectors ,what is the wattage of a injector at WOT .

[claymore]

Will the ecu handle the extra load of the extra injectors ,what is the wattage of a injector at WOT .

It's been done before, so I assume so, but I can always have a chat with Adam if it doesn't work.