Bill would allow 'switchable exhausts' on boats

Woodsy · 06-20-2011, 03:04 PM

Using any type of switchable exhaust at an engine RPM higher than what the mfr recommends may cause the internal flapper to break or an excessive water amount too close to the exhaust port... this can potentially cause reversion! Reversion (water being ingested into the engine via the exhaust valve due to camhaft profile) usually equals catastrophic engine failure....

Woodsy

NHBUOY · 06-20-2011, 03:37 PM

...ya...I get ya IS308...no harm, no foul...Hi BH..lol..you cowboy..

...

BroadHopper · 06-20-2011, 06:45 PM

Glad to see everyone is checking the websites to prove aps is blowing smoke! I challenge him earlier for a lively race on the road course at Loudon. So far he talks Beemers in FL. From the look of reviews in the car enthisiast magazines, I'm inviting my son in law and his Audi all road for breakfast!

06-20-2011, 03:04 PM	#1
Woodsy Senior Member Join Date: May 2004 Location: Weirs Beach Posts: 1,966 Thanks: 80 Thanked 980 Times in 440 Posts	Using any type of switchable exhaust at an engine RPM higher than what the mfr recommends may cause the internal flapper to break or an excessive water amount too close to the exhaust port... this can potentially cause reversion! Reversion (water being ingested into the engine via the exhaust valve due to camhaft profile) usually equals catastrophic engine failure.... Woodsy __________________ The only way to eliminate ignorant behavior is through education. You can't fix stupid.

06-20-2011, 03:37 PM	#2
NHBUOY Senior Member Join Date: May 2005 Location: Loon Mtn. winters...Meredith Neck summers Posts: 398 Thanks: 288 Thanked 94 Times in 60 Posts	...ya...I get ya IS308...no harm, no foul...Hi BH..lol..you cowboy.....

06-20-2011, 06:45 PM	#3
BroadHopper Senior Member Join Date: Oct 2004 Location: Laconia NH Posts: 5,576 Thanks: 3,216 Thanked 1,103 Times in 794 Posts	Hi fellas Glad to see everyone is checking the websites to prove aps is blowing smoke! I challenge him earlier for a lively race on the road course at Loudon. So far he talks Beemers in FL. From the look of reviews in the car enthisiast magazines, I'm inviting my son in law and his Audi all road for breakfast! __________________ Someday may never be an actual day.

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