1,9 to 2,1?

[BaxterHamilton]

Hello.

I am new to this forum so please forgive my ignorance.

I have a 1,9 GW (90 bhp, fuel injection) wbx in my oval. I would like to upgrade it to a 2,1 DJ.

Which parts do i need for this build? I am thinking stock DJ.
I just bought a 2,1 crank and flywheel. Do I need another cam? Can the 1,9 cylinders be reused? What else must I have in mind?

Thanks

[fastback]

you also need the DJ cam (or a CB2252)
and the DJ pistons
cyl heads are different
1,9 cylinders are the same.
the 1,9 rod's can be re-used as they do not use the stretch type rodbolts

the injectors , ECU and Air mass meter is also different.

[BaxterHamilton]

I believe I am already running the 2,1 cylinder heads, injectors, ecu and airmass meter so i guess I am on my way.

How about an engle 110 cam and solid lifters instead of the original setup? Or can I reuse the lifters with the engle 110 cam?

Thanks

[fastback]

an w110 is not compatible with the small diameter hydraulic lifters ,
it will wear down due to wrong geometry.
and the w-110 would move the torque a noticable way up the rev's, making the stock ecu probably not provide correct amount of fuel.

look into a CB 2253 or CB 2254 cam

when swapping to a "bigger" cam like the w110 , the stock ecu should be replaced by a programmble one.

[BaxterHamilton]

Okay. Great info!

[fastback]

a 2253 or 2254 would also move the torque a bit
stock ecu's are limited!

[BaxterHamilton]

What would happen if I only swapped the crank?

[fastback]

you'll get closer to a stock DJ

[fastback]

piston height is different on the 1,9 vs 2,1 pistons so you'll not be able to use the 1,9 pistons

[Oettinger]

How CB 2253 or CB 2254 cams work with stock digijet ECU ( DJ-version ) or which is the best cam/ratio rockers to get maximum power with stock 2,1 Digijet?