Turbo advice for 1W

[benh999]

Folks. 

Just a bit of advice, should I choose to go away from the supercharger and venture into turbo territory bearing in mind I will be using a 1w diesel bottom end and then capacity will be just shy of 1500cc what turbo can I use on her?

I will prob just use the ko3 turbo however I just wondered with the extra capacity can I go up to ko4 and if so which ko4 specific turbo will I need?

Cheers

Ben

[scully]

What gearbox will you be using?

[benh999]

What gearbox will you be using?

ATV

[youngprodigys]

What about somewhere in the middle? Ko3s turbo has a slightly bigger compressor wheel and should be able to flow the increased capacity your engine will have without the lag of the Ko4

[Alexiskayak_7]

Gt2554 or a gt2560 at 1.5 bar should be nice

[benh999]

Gt2554 or a gt2560 at 1.5 bar should be nice

Would have to fit direct on to a Rothe manifold?

[samg40]

Hmm hmm, http://www.polog40.co.uk/forum/index.php?topic=11976.0 

[Yoof]

Hmm hmm, http://www.polog40.co.uk/forum/index.php?topic=11976.0 

Bargain!

[Jezza-7]

Was a fast car with that engine as well!

[benh999]

What about somewhere in the middle? Ko3s turbo has a slightly bigger compressor wheel and should be able to flow the increased capacity your engine will have without the lag of the Ko4

Not sure they made the ko3s that is compatible with the Rothe manifold??

[youngprodigys]

only the compressor side differs iirc. so it would be a case of getting a ko3s compressor fitted to a ko3 hot side.

[polo classic]

I think I will go for a K04-15 eventually for mine, as thats about the most you can get a away with and still have half decent reliabilty with a 085 box

[youngprodigys]

Numbers coming out of ko4 turbo'd G40 motors are not very good. All the lag with no substantial increase in power.

[Yoof]

GT2554R – shit your rods and cogs everywhere for the win!

[polo classic]

Numbers coming out of ko4 turbo'd G40 motors are not very good. All the lag with no substantial increase in power.

My mate had 1 bar @ 2000 rpm with ported head, rothe manifold and K04-15 at standard capacity

I don't think my big valve 1473 will struggle with lag...