Vented dipsticks / crankcase breathers
Sponsor
Joined: Dec 2007
Posts: 12,084
Likes: 829
The OE dipstick un-snaps from the top.
We drill/tap for a 1/8-27 NPT pipe thread.
Then drill thru the body in 3 spots with a 3/16" drill.(creating 6 holes)
Snap back togather....done.
Route your line.
117"-up here get that.
On certain engines we have witnessed 1, 1 1/2 hp increase, on back/back dyno testing.
Not a deal maker, or breaker.
I use one on my 131".
Scott
We drill/tap for a 1/8-27 NPT pipe thread.
Then drill thru the body in 3 spots with a 3/16" drill.(creating 6 holes)
Snap back togather....done.
Route your line.
117"-up here get that.
On certain engines we have witnessed 1, 1 1/2 hp increase, on back/back dyno testing.
Not a deal maker, or breaker.
I use one on my 131".
Scott
Grand HDF Member
Joined: Sep 2017
Posts: 4,359
Likes: 1,219
From: Dubuque, IA
Nevermind. More than 1 way to skin a cat I guess.
Incidentally, the krankvent claims a 2 - 8% increase in power too. Not that I buy into that. I do know it solves any blowby or chronic leak issues and the motor revs more freely. A reed valve would be even better.
Hayden Krankvent
Incidentally, the krankvent claims a 2 - 8% increase in power too. Not that I buy into that. I do know it solves any blowby or chronic leak issues and the motor revs more freely. A reed valve would be even better.
Hayden Krankvent
Last edited by 60Gunner; Nov 19, 2020 at 09:30 AM.
Grand HDF Member
Joined: Sep 2017
Posts: 4,359
Likes: 1,219
From: Dubuque, IA
Sponsor
Joined: Dec 2007
Posts: 12,084
Likes: 829
Maybe 2%... blue sky day, wind at your back, going downhill.....8%?.....impossible for that amount of pressure to be within an engine without adverse affects prior.
Scott
Scott
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Grand HDF Member
Joined: Sep 2017
Posts: 4,359
Likes: 1,219
From: Dubuque, IA
The only real increase as far as power goes is removing the breathers from the intake tract. That consistently adds 2 - 3hp across the entire rpm range. But that's just common sense. Diluting the intake charge with hot, oily air will have a negative effect on power, even cause a poor idle condition.
Last edited by 60Gunner; Nov 20, 2020 at 07:42 AM.
Tourer
Joined: Jul 2020
Posts: 437
Likes: 136
From: Missouri
The OE dipstick un-snaps from the top.
We drill/tap for a 1/8-27 NPT pipe thread.
Then drill thru the body in 3 spots with a 3/16" drill.(creating 6 holes)
Snap back togather....done.
Route your line.
117"-up here get that.
On certain engines we have witnessed 1, 1 1/2 hp increase, on back/back dyno testing.
Not a deal maker, or breaker.
I use one on my 131".
Scott
We drill/tap for a 1/8-27 NPT pipe thread.
Then drill thru the body in 3 spots with a 3/16" drill.(creating 6 holes)
Snap back togather....done.
Route your line.
117"-up here get that.
On certain engines we have witnessed 1, 1 1/2 hp increase, on back/back dyno testing.
Not a deal maker, or breaker.
I use one on my 131".
Scott