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Old 10-30-2012, 06:05 AM
Surfer Surfer is offline
TT Regular
Join Date: Sep 2004
Boat: MC PS 190 1995, 350 cid. injection, 275 hp, 1:1, 4-blade prop.
Location: South Finland
Posts: 52

Originally Posted by JimN View Post
The intake air temp isn't monitored on older models. The only time I saw people having problems barefooting with a TBI engine was when they had small feet and were relatively heavy. With cooler air temp, the extra power wouldn't hurt (it's always nice to have a little extra)- what is the elevation where you'll be skiing?


my barefooting driving is rarely 38 mph (US nautical miles), more likely in 35 -36 mph range at the highest.
By the way the old engine (ca. 2100 h) still this summer took close to 38 mph, before it broke down.

Cooler air is more packed, i.e. more oxygen in smaller space, you get more power then actually?

Maybe with TBI, high revs and constant resistance for the engine with previously described barefooter causes something? Though I understand no major problems.

My altitude where I normally ski would be ca. 102 feet above sea level. Occasionally at around 246 feet.


PS190 1995 5.7 l EFI TBI 1:1 13x13 4-blade prop. Barefoot boom, wakeboard boom & fatsack. UK made trailer
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