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-   -   just a thought on engine venting (https://www.dieselbombers.com/general-diesel-related/76797-just-thought-engine-venting.html)

RIGGLE21 05-20-2011 11:01 AM

just a thought on engine venting
 
Has anyone ever seen the blow-by hose ran into the exhaust or did this?
IMO i would thing running it into the exhaust would cause it to vacuum out crank case pressures and make the engine run better and also most likely gain fuel mileage :humm:

daveO 05-20-2011 11:58 AM

I think doing this you would just end up with exhaust in the crankcase.

RIGGLE21 05-20-2011 12:28 PM

i was just thinking about that...but if the angle was right it would work the same as a paint gun or air brush wouldn't it?

daveO 05-20-2011 01:19 PM

Yeah, I guess theoretically it could work, but you'd have to create a venturi in the exhaust system somehow to create the low pressure area. And then you'd create more exhaust backpressure, losing any efficiency you would have gained, if you gained any.

RIGGLE21 05-21-2011 07:58 AM

guess it was a stupid idea....i really just feel like more venting is needed with moded trucks

turbostang7 05-21-2011 11:29 AM

i had it on my drag car, it was a 406 sbc and didn't have baffles in the valve cover, so oil would go everywhere lol. they sell kits for it to go into the headers.
it helps high end rpm's it relieves the pressures so that it can rev easier. plus gets rid of all the blowby and such. i can't remember off of the top of my head but there is a certain angle that they have to be or it doesn't work, but if they are in right you can definetly tell a difference in how the engine revs and sounds up high.

RIGGLE21 05-21-2011 01:28 PM

so there is such a thing...thanks man...do you think it would be worth it on a high performance diesel engine?

EasternAggie 05-24-2011 01:39 AM

hmmm interesting concept :humm:

turbostang7 05-24-2011 08:15 AM

never even thought of one on a diesel pickup. my thinking might be that the high drive pressures the trubo takes makes the pressures in the exhaust higher than a gas vehicle, if the angle isn't perfect it will only pressurize the crankcase.

JEGS Performance Products 30739 JEGS Universal Crankcase Evacuation/O2 Fitting Kit
here is a link to it, you just get a breather and some hose and connect the two lol.

RIGGLE21 05-24-2011 09:50 AM


Originally Posted by turbostang7 (Post 756831)
never even thought of one on a diesel pickup. my thinking might be that the high drive pressures the trubo takes makes the pressures in the exhaust higher than a gas vehicle, if the angle isn't perfect it will only pressurize the crankcase.

JEGS Performance Products 30739 JEGS Universal Crankcase Evacuation/O2 Fitting Kit
here is a link to it, you just get a breather and some hose and connect the two lol.

that might be the best idea haha.....i was just thinking about when these pulling trucks get above 5k there is alot of horsepower robbing pressures....maybe a electric vacuum pump would be better


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