dw10 crank swap 400HP

[toseland]

The first set of those rods where developed and made by us, for the 2nd and 3th engine we asked a friendly machinery to make some sets so we have over 30 at stock for other teams:
http://www.struyk-techniek.nl/webshop/in...ucts_id=98
However they are only used in tractor pulling so far so no clue if they will hold up in "daily" use. (so far)

This winter I am gonna build a DW10 engine for use in a rally cross car. (so end of next year I know if the rods are also usable inside long live engine)
I will also make some postings here about that project since that information could be useful for you guys to.

The cross engine will have the aluminium rods and home made billet pistons (like the puller) with stock bore (so I can use my left over pistons from last year) and a slightly higher compression ratio 13:1 (the puller is 12.2:1) since it will have a lot lower boost. (setting the waste gate to 3bar for starters, on the puller no waste gate and got readings up to 6.2bar turbo pressure this season)
For fuel delivery I will use Land Rover 300tdi parts, stock fuel pump and stock injectors would be good for up to 200cc within 30 crank degrees. (on our pullers we have one with 235cc@20degree and the other with 300cc@30degree, also using 300tdi injectors only replaced the nozzles with Bosch 144P144 from a Scania truck, removed the pilot injection part and set basic pressure at 320bar)
The Bosch VE pump from the LaRo is turbo pressure regulated, will take some fiddling to get it responsive to the high boost pressure but for sure it will make a lot more power then the crappy common rail does...

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Here the drawing for stock bore pistons, they make use of the stock piston rings and a shortened piston pin.
Missing are the pin "locker" grooves, some cuts from oil scraper ring to below and all fillets...

You can edit, view and convert the file with FreeCAD: http://www.freecadweb.org

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And here the piston for 86mm bore with 2.1 crank:

This thread is of massive interest to me..  i was looking at higher power levels with the HDi i currently have and there is lots of information about rods, and pistons, sumps and turbos but less so about the valve train.

Apologies if this is in the thread before i must have missed it..  Are you using the 8valve head, or the 16valve from the 110 (DW10 block) 

Having done some research it appears that lifters are an issue at high speed (collapsing) and also valve springs allow float and bounce of the valves at high pressures (intake).

what did you use/do to counteract this, if you used higher rate springs what were they from or where did you get them and what did you do about the lifters.. solid lifters?  

IF so in a PM would be great, if you dont want to share the information publically just yet.