Dw12Ted Bottom... Petrol Turbo-Engine Is Possible?

[megavolt0 0]

Hi!

Can I build a petrol turbo-engine on dw12ted bottom(block,crank,con-rod,dw pistons are present)? May be XU10J4R/RS head and any pistons...? decompsession gasket is allowed...

[welshpug 1,621]

crank yes, rest of it no, they are not suitable.

[megavolt0 0]

crank yes, rest of it no, they are not suitable.

if look at the gasket foto of dw egnines and xu10 engine - they are very similar... What concrete problem in compatibility? Oil chennel, bolts? or block height? if it too high, maybe possible grind off it a little...

[megavolt0 0]

or if it not possible, what combination of con-rod and pistons use with dw12 crank in xu10j4r/rs block+head for turbo?

[welshpug 1,621]

http://forum.205gtidrivers.com/index.php?showtopic=111533&st=0

[megavolt0 0]

http://forum.205gtidrivers.com/index.php?showtopic=111533&st=0

Thanks.

I found than DW12TED4 con rod length=152mm. Pistons has KH=48.705 mm.

XU10j4RS con rod length=158mm, pistons has KH=33.9 mm

XU10J4R , con rod length=158mm,pistons has KH=33.8 mm

XU10J4 con rod length=152mm,pistons has KH=39,1mm

Total: what I will have whith 158mm con rod + 39.1mm pistons in DW12 block?

Edited January 23, 2013 by megavolt0

[welshpug 1,621]

do you have a calculator?

[megavolt0 0]

do you have a calculator?

I don`t now, how mach mm piston doesn't reach to top of the block in TDC in XU10J4R for example...

Besides:

 

crank yes, rest of it no, they are not suitable.

Why bock is not suitable?

[RossD 43]

Try and find a picture of some DW12 or any HDi piston - You'll soon see why they are not suitable ;-)

[megavolt0 0]

Try and find a picture of some DW12 or any HDi piston - You'll soon see why they are not suitable ;-)

Hi. You don't understand.. (Sorry my English :-[)

Piston are not suitable,truly.. And conrods, certeinly, because pin's diameter is different. What about using DW12TED block and crank with XU10J4R(RS) head. And use custom pistons and rods or choose combination of H-rod xu10j4/xu10j4rs and tubropistons. If cr will be too low - grind off block. 1 or 2 mm is not a prolem.. The main question in compatibility of the DW12 block and xu10 head...(bolts and oil channel)

[kyepan 291]

Good question, sandy has looked at the ew in detail, but I'm not sure about the dw... Perhaps try and get a picture of the dw casting and we can compare

[megavolt0 0]

If look at the head gasket for dw and xu, they are very similar. I think, that bolt on will be identical, but what about oil chenel..? On peugeot catalog pictures and gasket pictures it is similar too..

Unfortunately I have no opportunity to compare gasket in reality.

[megavolt0 0]

Here that I could find...

Combination of dw12 block and xu10 head is possible, apparently...

Edited February 15, 2013 by megavolt0

[peter 20]

Why not put the 2.2 crank in a xu block, use a set of machined 8v turbo pistons, then a large spacer plate to drop the CR and clear the valves? Or some custom pistons...

[dcc 855]

Thats not what he was asking. He was asking can he use the block with custom pistons. I guess because the block is more modern and designed better.

 

Just like you, I havent got a clue. But the oil ways do look similar. Why not give it a dummy build.

[peter 20]

No, but i want to know! haha Just build one and find out,

 

I'm guessing the piston would come well above deck height.

[megavolt0 0]

No, but i want to know! haha Just build one and find out,

 

I'm guessing the piston would come well above deck height.

DW12TED4 con rod length=152mm. Pistons has KH=48.705 mm.

XU10J4 , con rod length=152mm,pistons has KH=39,1mm

XU10j4RS con rod length=158mm, pistons has KH=33.9 mm

XU10J4R , con rod length=158mm,pistons has KH=33.8 mm

[welshpug 1,621]

XU10 block height, 235mm.

 

DW12 block height. circa 248mm.

 

its a big heavy bloody lump too.

[megavolt0 0]

I don't confirm, but xu10:

235-86/2-33,9-158=0,1

As a result - in TDC in xu10j4rs pistons are in 0.1 clirens from block deck? That's right?

 

However, dw12: 248-(96/2)-158=48mm for piston's compression height and decompression distance...the rest can be grind. Right?

Edited February 18, 2013 by megavolt0

[megavolt0 0]

However, dw12: 248-(96/2)-158=48mm for piston's compression height and decompression distance...the rest can be grind. Right?

However, dw12: 248-(96/2)-158=42mm for piston's compression height and decompression distance...the rest can be grind. Right?

 

For xu10j4R(s) pistons is too small KH But if use XU10J4(KH=39,1) of XU10J2(KH=40) pistons it is real..

For example, XU10J4RS rods+XU10J4 pistons: 248-158-(96/2)-39.1=2.9mm with small grind of block is real...

Edited February 18, 2013 by megavolt0

[welshpug 1,621]

basically all you want is the DW12 crank, the rest is XU or custom.

[B1ack_Mi16 67]

It will still be interesting to know if the XU head will fit directly and without any modifications to oil or water channels.

 

A guy in Norway once built a turbo engine based on a complete XUD11 bottom end (including all diesel stuff, crank, rods, pistons). Bolted a GTi6 head on top of it and used some thick metal head gasket to keep compression under control.

 

It worked quite well for what it was, and was a very cheap build.