How many Rpm lost due to fouling

[Ian MacAulay]

on the back end of MapisM poll what's a acceptable loss of rpm at WOT. Lets say the past 4 months over the summers worth of growth?

 

[CLB]

Surely it depends on what your wot is. ie, in percentage terms.
300 from a boat that only revs to 2200 is much worse than from one that revs to 6000.

 

[Ian MacAulay]

Your 100% right ... stupid me for doing the poll like that and i cant seam to change it... Percentage would be so much better.

For now lets go with Diesels like my volvos that rev under 3000rpm and hope a mod can help me edit my post.


Ian

Surely it depends on what your wot is. ie, in percentage terms.
300 from a boat that only revs to 2200 is much worse than from one that revs to 6000.

 

[KINGFISHER 9]

Full chat - 33 knots. Fouled - 15 to 20 knots depending on the level of fouling but fouled legs and prop seem to have the worst effect.