Xu9 And Xu10 Mash Up

[brianthemagical 1]

anyone know if xu10 liners (assuming there wet liners) will fit in xu9ja blocks? something like s16 pistons on an xu9 crank, anyone tried it? suggestions/thoughts would be appreciatwed. thanks

[jackherer 543]

XU10 cast blocks don't have liners...

[brianthemagical 1]

thanks for that. can the xu9 liners be bored out to 86mm then used with xu10 pistons, or am i fantasising (sp). thanks again.

[jackherer 543]

no chance, have you seen how thick the liners are?

[brianthemagical 1]

come to think of it, yes. whats the best route to go down for incresing capacity, i'm guessing an iron block. thanks.

[niklas 1]

come to think of it, yes. whats the best route to go down for incresing capacity, i'm guessing an iron block. thanks.

 

There are liners with bigger bores to buy, but they tend to be quite pricey.

I think you can bore the existing liners to 83.5-84mm maximum without any major risks.. But I wouldn't take it any longer than that.

 

The iron block can safely be bored to 87mm and probably 88mm as well so it's a better starting point for getting a big-bore-XU!

[jackherer 543]

come to think of it, yes. whats the best route to go down for incresing capacity, i'm guessing an iron block. thanks.

 

Yeah thats the only option really, I think 83.5mm is the most you can hope for in an alloy block.

 

I seem to remember some people saying that some iron blocks will overbore further than others so you need to do your research. Have a go with the search function and you'll find loads on the subject.

[brianthemagical 1]

thanks for all the help. i'll have rethink and search for big bore engines. i don't want an iron block but if thats the only way. thanks again.

[Hilgie 16 2 Cars]

why you don't want the iron block? they are stronger and more cc.

 

it's only a few kgs weight increase.

[jackherer 543]

Hilgie is right, there is nothing wrong with an iron block.

[TB_205GTI 1]

You can get 85mm liners, but they are rare at hens teeth

[brianthemagical 1]

as regards to using an iron block, i was hoping to fit the liner/internals with the block in the car to save hassle/lack of space. i've know come round and am going to be putting an iron block in.

 

the liner sets on hi flow were to expencive to even consider.

 

a few more q's then, if i may,

 

1, will an xu9 crank fit in an xu10?

 

2, are there any cranks that are 90mm stroke, i like the idea of having around 2066 rather than 2055, it's a more convincing 2.1l.

 

3,will the xu9 head fit on an xu10?

 

i've tried a search but can't find anything that doesn't confuse me.

thanks for the help.

[Doof 11]

When people state the weight differences do they take into account the weight of the water held in the jacket of a wet lined block which must be a few litres?

[jackherer 543]

When people state the weight differences do they take into account the weight of the water held in the jacket of a wet lined block which must be a few litres?

 

thats a good point but it would take 14 litres to make up the difference (1L of water weighs 1KG)

[Hilgie 16 2 Cars]

@brianthemagical:

 

1) yes it fits. it's 88mm vs 86mm stroke

 

2) there is a 92mm crank (from a 2.1TD engine) and a 96mm crank from a 2.2-16V HDi, both fit the bearings, just the crankcase needs little modification to make the crank turn over.

 

3) yes...heads can be swapped

[brianthemagical 1]

thanks very much for the help.