DDC 2 Aftermarket Tops

[CedricFP]

Just to double check, will the current selection of aftermarket DDC tops fit a DDC2, or have there been significant enough changes in impeller design etc, that a top designed for the 3.2 won't fit the 2?

Thanks.

EDIT: After a bit of research, turns out the DDC2's impeller was larger. I wonder how this affects current top performance, which have smaller inlets to match the smaller impellers.

[CedricFP]

Anybody?

[lowfat]

The tops are exactly the same for every DDC. As for performance I have no idea.

[Martinm210]

The old DDC tops are not compatible with newer pumps, but newer tops are backwards compatible. The smaller inlet opening is slightly more tuned for the newer smaller impeller inlets, but it's nothing real significant. Many newer tops have a much better spiral volutes though..so despite the perhaps less than ideal inlet size..they will still outperform the older tops.

[CedricFP]

The old DDC tops are not compatible with newer pumps, but newer tops are backwards compatible. The smaller inlet opening is slightly more tuned for the newer smaller impeller inlets, but it's nothing real significant. Many newer tops have a much better spiral volutes though..so despite the perhaps less than ideal inlet size..they will still outperform the older tops.

Ta, Martin. I hadn't considered how the volutes have been improved when compared with older tops.