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Little help on Rear End Puking on track

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51
104
Exp. Type
HPDE
Exp. Level
10-20 Years
Wild Wonderful WV
2008 Roush Trak Pak and it has the Eaton TruTrac from Roush. At Rockingham, the rear puked quite a bit. The banking was a cause on this I realize. The overflow tube from Roush just sends it on the wheel.

After the Rock, I added a Boss 302 cover and turkey baster on top. At Gingerman, Waterford and VIR this worked great with no issues at all.

At NCCAR, I was blowing fluid out of the top of the Turkey Baster. Should I add a catch can off of the Turkey Baster, or potentially off of the axel vent that I plugged when the baster was installed.

Appreciate this forum's help, couple of pics for reference.

IMG_1686.JPEG

IMG_1688.JPEG
 
We talked a little about this issue in this thread:
A lot of guys recommended a Bob's overflow can for this:
But some people said that the mount caused noise -- I think Cortex has one, and I think there was a JLT one that's now discontinued if I remember right.
Oh yeah -- there's a Ford solution too:
But your turkey baster looks like it has more capacity than the Ford extension solution.
 
What level of prep is your car? If you are doing track only, you could put a vented catch can up in the trunk space so you have the volume of the line and the can for the fluid to expand, but also the ability for the fluid to drain back down into the axle as it cools.
 
I had the CorteX vented catch can, mounted as designed on the differential cover and it still puked fluid. I relocated it as high as I could get it, above the wheel well liner there's space by the fuel fill. Same benefit as trunk mounting without compromising the trunk. Problem solved.
 
What level of prep is your car? If you are doing track only, you could put a vented catch can up in the trunk space so you have the volume of the line and the can for the fluid to expand, but also the ability for the fluid to drain back down into the axle as it cools.
It is street driven. I have a Watson roll bar and am not opposed to modifying but I am not crazy about the idea of installing it in the trunk. We like to run the Dragons with friend groups and I dont want to go that far.

Honestly I thought the problem was fixed. At NCCAR you are in sweepers a ton and i guess that is what did it. I am running the Roval in a couple of weeks and know the banking is gonna heat it up. Pulling the cover week afternext to be sure it is ok.
 
It is street driven. I have a Watson roll bar and am not opposed to modifying but I am not crazy about the idea of installing it in the trunk. We like to run the Dragons with friend groups and I dont want to go that far.

Honestly I thought the problem was fixed. At NCCAR you are in sweepers a ton and i guess that is what did it. I am running the Roval in a couple of weeks and know the banking is gonna heat it up. Pulling the cover week afternext to be sure it is ok.
If your concern is fumes/smell and while extremely low, fluid in the trunk, remove the vent filter from the can and run a -10 hose back out of the trunk. This addresses all those concerns. I had the same thoughts; unwilling to tolerate even the risk of smell in the car. I get none of that on my setup. I've never seen a single drop of fluid/mist in the clear vent hose. Any fluid in the can just drains back to the axle.

IMG_6637.jpeg
 
If your concern is fumes/smell and while extremely low, fluid in the trunk, remove the vent filter from the can and run a -10 hose back out of the trunk. This addresses all those concerns. I had the same thoughts; unwilling to tolerate even the risk of smell in the car. I get none of that on my setup. I've never seen a single drop of fluid/mist in the clear vent hose. Any fluid in the can just drains back to the axle.

View attachment 111474
I have a great shop that I work with. He is gonna pull the cover and change the fluid next week. I think I will go ahead and do this. Your set up looks great.
 
I have a great shop that I work with. He is gonna pull the cover and change the fluid next week. I think I will go ahead and do this. Your set up looks great.
Thanks. I'm doing the exact same setup on another 197 in the garage right meow, and I did one thing different from what you see - this time, instead of running the hoses through the floorboard with the rubber boots to seal, I installed AN bulkhead fittings in that same spot. No change in function, just a little cleaner install...and higher cost, lol.
 
I used the Joe’s catch and put it in the driver’s wheel well by the filler neck.
I ran the hose up the trunk floor and over to the driver frame rail, then followed the filler neck up.
My only concern is the reverse trap in the line to go under the frame rail. It shouldn’t be an issue, should still drain back since the can is higher than the line the whole way back.

Also note that I have a 9”, it pukes just as bad as the 8.8” haha
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