Krank Vents--Users please post results....

a one way valve is a one way valve, these are lighter and more durable. i didn't go the durable one route but direct from et performance and got the turbo application. been running them for a while and first off the exhaust note changed and the oil leak at the cross over stopped. my air/oil seperator had become clogged. you can hear the air escape valve. can't sya that i feel any power difference but the simple fact that the oil stopped leaking keeps me happy.

 

????????????????

I'd like to hear and understand more about that if you can.
thanks!

 

the only way i can figure it is becouse the air/oil seperaator can was clogged the crank case would fill with air from passing the rings due to the lack of a vaccum, the presuure would build and try to escape from the heads but ended up pushing out oil. removing the system and instaling the vents allowed the crank case to vent and the rings would now seal better and the result produced a different exhaust note.
now if your air/oil can is not plugged than i would assume then that you wouldn't get the same results.

 

Where's the oil/air can located in the mondial? I have been contemplating buying these for quite a while.

 

I have had them for about 2 years now without any problems.

 

Below is my exact statements in a previous thread:

The only Modification to them is the threaded end piece to make them fit the 308. They were designed for Harleys (see the REAL manufactures web site).

After this post I was asked if I ever installed them and this was my response:

Just another waste of money for a chrome gaget that has no supporting data when it comes to an 8500 RPM V-8 engine. It seems that people will buy anything even without proof of operation .....as long as it is pretty.

 

Tommy loves his bolt on stuff

The above quote is in relation to another bolt on product that Tommy and I disagree on, to be fair his quote is somewhat out of context but shows that he loves these gagets.

 

i had a vent from K&N on 2 of the the 3 fcars. worked fine for me.

 

Have tried these on a harley and saw no change to power etc.
The real answer to negative crankcase pressure is to put a vacuum pump on the breather. This has produced HP gains in high reving drag engines by reducing the pumping effect that the pistons create.

 

i have had the krank vents for about 3 years now - no problems. BUT, the krank vents use a standard thread into the cam covers - ferrari uses a PIPE thread. so, i had my machinist cut the bottom of the crank vent thread off, and also cut the threads off the original fittings, and weld them to the krank vents so they fit much better. if you dont do this, they may leak, or i had to use almost a whole rool of plumbing teflon tape to get them to stay on before i modded them. i did not notice any driveability issues, although there is a reduction in oil leaks with these vents - the original system is horroble. i fyo uinstall them, remember to plug the original line going to the block - otherwise you are defeating the purpose.
john
78 308 GTS euro

 

The k&N unit is just a filler isn't it?

I think the krank vent is a check valve designed to yield a vacuum in the crankcase of a harley (both pistons go up and down almost at the same time), I'm not sure what if anything it does on an engine that isn't supposed to generate pressure/vacuum pulses. Scott and John say an oil leak went any way after they installed it so it might do something...or the OEM vent was plugged and cleaning it might have had the same effect. I just don't know, but I do know that they do work on harleys.

Maybe when Tom and Mike are on the dyno they can answer the crank vent question too?....and maybe the cool looking air tube too, then all will be known.

 

Might as well throw in the EXP4 oil additive as well...

 

And a Chrome Muffler Bearing....I hear the chrome acts as reflector thus giving a solar effect. also availible where the vents are sold and Free shipping i hear.

 

I am not sure folks are having realistic expectations with this thing. Has anyone ever expected more than just a few HP out of this little TB bore increase and krank vent mod? Probably 5 at the absolute most? There is really no way just this can do much more at all.

If we show a 4-5 hp improvement, what was proven that we didn't already know? Anybody who things it's too much money to spend now will think the same when Mike and I get together after the holidays in Jan. Anyone that wants a real punch in the back from the throttle needs to call Paul for advice, not Kermit and I think we all already know this too.

 

i think the K&N had a check valve in it. it may have been just a filter. i had no leaks from the dino or the gtb that could be attributed to high crank case pressure. i dont have the cars anymore to look at the vent directly.

 

paul, why are you so negative to the krank vents? all they are are PCV valves albiet with different material for the vent. if someone is looking to get more HP then yes they are looking in the wrong direction, use a vacumm pump. but if you're replacing the oily messy expensive air/oil seperator system then this is what you'd use. std stuff on motors. all motors thru the power stroke and compression stroke of thier cycle proudce crankcase pressure as it slips past the rings, by introducing a PCV valve it allows the pressure to escape with out drawing in more air from not having the valve in place.

the only draw to me was i shouldn't have to replace them, we'll see. std PCV valves don't last long.

i don't think these items belong with the 'snake oil' group of products or 'shiny chrome bolt-ons'

 

Paul's mission in life is to slam everything and anything to do with Durable 1 and Kermitt.....its getting old, but he won't stop.

 

No Sir it will not stop, can't wait till someone destroys $15,000 of your Ferrari Engine Parts.

Some real good stuff to come next week(Court Records).

The crank vents are for a Harley and don't belong on and 8500 RPM Ferrari engine. Prove that they do something! Until then it's BS and snake oil.
The guy that sells THIS CRAP FOR FERRARI'S can prove nothing and yet you think my negative post is against HIM, until he can prove that do something for a 8500 rpm v-8 it's snake oil.

In Fact he can't post a single flow chart or Dyno for any of his products but he always talks about his "testing"......SHOW ME THE BEEF!

I tried them and they don't do anything, I found them to be restrictive and installed a Canton Racing Breather tank instead.

Next you will be buying split fire spark plugs.

 

Paul,
How do you like the Canton Breather tank? I actually thought about those when I first saw kran vents on Durables website. How did you install/mount it? Have any pictures?
-Nate

 

I would like the see pictures of them installed too

 

I replaced the stock breather canister with a custom one as shown. I also vented each valve cover in 2 locations In all, there are 4 connections into the new canister with the top breather/seperator going to the intake tube before the TB. The bottom of the canister drains directly into the crank as per the stock unit. I found that when I had a straight breather on top of the canisiter, I has some oil leakage through the breather while during track runs. The breather/seperator cured that.
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Paul,

Very Nice custom setup.

I will post photo's after I recover from last night (and get up to the shop sometime this week).
My Mounting location is similiar to Pauls.

Paul