Stock Air Box Back On Re-Did, Re-Rout EBS Catch Can Set Up

[Capt.Bob]

In my own findings I have felt no suction on the vent hoses or the breather bolts that I can feel anyway. I did take a glass of water and stuck my vent hose in it with the stock A/C mod that we are talking about here and only get a small amount of air bubbles in the water, The water does not go down in the glass as to indicate a suction that is measurable that can be see. I would recommend to anyone not sure of this to not do it. I feel it is the right way to go and may later add a catch can but have seen no reason to add one now. Thanks Doc

BTW This mod can be undone in minutes back to stock , only showing a hole in the bottom of the plastic A/C housing.

Doc, This discussion reminds me of some challenging issues we hardcore astronomers have been wrestling with in terms of taming air currents in large-mirrored Newtonian telescopes (28"-45"). I admire your willingness to try and test certain hypotheses. What we have been finding in the astronomy world is that the answers to thermal gremlins are not as readily forthcoming as one would hope for and I have been interacting with some very high level engineers and other scientists over the years. We seem to continue to take bites at the apple and seem to move a step forward and then find that at times that we have taken a step and a half back and had to rely on other solutions or return to our starting point. As long as the equipment is not irreparably harmed, it does not seem like too big a deal to experiment. However, as a former scientist myself in another life (25 years ago), I remember times when I was fairly confident of what results I could expect and was sometimes quite surprised that my suppositions did not bear fruit.

I think it is fascinating to play with this machinery. I am doing it with two trikes and a race car and find that what seems obvious is not always the correct solution. Please don't ask me about seating choices I will maintain a certain amount of mild skepticism as I watch the solutions continue to come forward for improved performance. As many of us would relate, there is no such thing as a perfect machine.

[hddocfl]

Doc, This discussion reminds me of some challenging issues we hardcore astronomers have been wrestling with in terms of taming air currents in large-mirrored Newtonian telescopes (28"-45"). I admire your willingness to try and test certain hypotheses. What we have been finding in the astronomy world is that the answers to thermal gremlins are not as readily forthcoming as one would hope for and I have been interacting with some very high level engineers and other scientists over the years. We seem to continue to take bites at the apple and seem to move a step forward and then find that at times that we have taken a step and a half back and had to rely on other solutions or return to our starting point. As long as the equipment is not irreparably harmed, it does not seem like too big a deal to experiment. However, as a former scientist myself in another life (25 years ago), I remember times when I was fairly confident of what results I could expect and was sometimes quite surprised that my suppositions did not bear fruit.

I think it is fascinating to play with this machinery. I am doing it with two trikes and a race car and find that what seems obvious is not always the correct solution. Please don't ask me about seating choices I will maintain a certain amount of mild skepticism as I watch the solutions continue to come forward for improved performance. As many of us would relate, there is no such thing as a perfect machine.

Good one Capt. Glad we can share. Doc

[Mr.T]

In my own findings I have felt no suction on the vent hoses or the breather bolts that I can feel anyway. I did take a glass of water and stuck my vent hose in it with the stock A/C mod that we are talking about here and only get a small amount of air bubbles in the water, The water does not go down in the glass as to indicate a suction that is measurable that can be see. I would recommend to anyone not sure of this to not do it. I feel it is the right way to go and may later add a catch can but have seen no reason to add one now. Thanks Doc

BTW This mod can be undone in minutes back to stock , only showing a hole in the bottom of the plastic A/C housing.

I just finished my engine oil venting system.

[Mr.T]

OK I did your mod,

Like your mod. My air box is different so my mod is just a little different. Only needed two hose connectors and hose. I did made a change to the routing of the hoses by filing to new places for the OEM hoses to be routed down the sides of the air box (rather then across the top) using the hose connectors and hose to the OEM tee at the bottom air box where I drilled a hole to exit hose.



Will install a small catch can when I get it. Will I have to re-route the hose that laies on the engine housing because of heat melting it?

[headheaded]

What size hose did you use ?

[Mr.T]

7/32” ID x 6 FT windshield washer hose / vacuum tubing by Prestone

[Mr.T]

Like your mod. My air box is different so my mod is just a little different. Only needed two hose connectors and hose. I did made a change to the routing of the hoses by filing to new places for the OEM hoses to be routed down the sides of the air box (rather then across the top) using the hose connectors and hose to the OEM tee at the bottom air box where I drilled a hole to exit hose.



Will install a small catch can when I get it. Will I have to re-route the hose that laies on the engine housing because of heat melting it?

Installed catch can.