Forged engine build, to go in the 3 door project car. Parts and advice needed guys.

[Ruan]

I have placed my deposit for the con rods.

I have bought a recently reconditioned head, so now I have 4 heads

I am looking at lightening the engine components, so was wondering about some advice........

Pulley's: Gti pulleys from Lynx will they fit the XUD?
Flywheel: Again Gti flywheel will it work on the XUD with a hdi gear box? I am looking at a lightened flywheel, but if there is not much difference between the flys I will just look at getting my standard XUD lightened.

I have seen on here or .net about rebuilding the engines with regards to shells and how the con rods go in.. I would be grateful for some more insight in this so I can crack on with the build with Kris when the rods arrive.

Cheers in advance guys.

The pulley is the same for all XU engines - so yes will fit fine. I can't remember if the pulley is the same size on the XUD9 as the XU10 due to the XU10 spinning faster, IIRC it's slightly bigger on the XUD - but just means you'd need a slightly shorter belt...

Flywheel will fit fine yes - it has teeth for crank sensor for GTi6, but is the same item. XUD9 clutch is the same as XU10 clutch, so no problems there either.

No need to really worry about rebuilding engine with new rods/shells - nothing that different, you just need HDi bearing shells. Make sure they go in the correct way round - they are sputter bearings on the top shell (matte finish) and normal bearings on the cap side.

Though the biggest difference in engine weight would be gained from lightening the pistons - that is where the main amount of weight is in an XUD9, they're also the part with the most amount of inertia, due to the fact they're essentially the most "geared" part of the engine... You've got a 200g weight on the end of a pole, reciprocating at insane speeds with a relatively long 88mm stroke.