Originally Posted by ViciousLSD (Post 11976165)

yeah when I hear fluid transfers and venturis i just feel theres an ideal pressure differential required to let nature do what its supposed to do. I remember reading some gumming issue with overly vented e85 thats why I put a check valve on mine. still works. I remember putting in 10 gallons post race in my last few 2 days events


if i ever get this issue I would just pump from the drain to the return line. I bought the parts for the experiment but have not figured out how to measure the fluid level inside the bowl after adding the gate at the balance tube whatchumacallit

Originally Posted by kikiturbo (Post 11976191)

Just add a simple low amp pump to the passenger side. I added a small float switch so that the aux pump is switched off when the pass side runs dry (to protect the pump). Remove the venturi. You cant overfill the main bowl and even with a small lift pump you will keep the main bowl filled. I am out of car and money to do a propper test, but if anyone wants to serously experiment with this, I can donate a set... (the lift pump side.. top one on the pic)

Originally Posted by ViciousLSD (Post 11976214)

Thanks @kikiturbo . since i wanted to try something with the gate I put on the balance(?) tube and if I pump fuel into the return line. could I end up overfilling and pressurizing the bowl and blowing the seal? or does it just overflows back into the tank? My take is more about using a transfer pump running 100% and technically wont be running dry below Empty.

Originally Posted by kikiturbo (Post 11976243)

just flows back into the tank... it is not sealed..

I dont understand the gate on the balance tube?

Originally Posted by Ayoustin (Post 11976266)

No, the gauge correlates the sum of the resistance of both floats. It would read correctly at full but error would increase as fuel level drops, an empty tank would read as 2/3 full roughly.

https://cimg8.ibsrv.net/gimg/www.evo...9f5dc7fc1e.png

Originally Posted by ViciousLSD (Post 11976270)

ok thanks. but what about giving the right side plug an ohm value equivalent to empty? actually I will ponder a bit more on this, just need to brush up on basic electronics

Originally Posted by Ayoustin (Post 11976278)

The only way that comes to mind would be to build some sort of emulator out of a raspberry pi or something that reads the driver side float resistance and uses that to create a corresponding resistance on another circuit plugged into where the passenger float would be plugged in. There might be a more simple way but nothing else comes to mind at the moment.

Originally Posted by kikiturbo (Post 11976289)

you could pull the pass side sensor, tie it with a zip tie so that it shows empty or full and then the fuel gauge would measure only the main tank.. :D

Originally Posted by RSMike (Post 11976222)

Evo 6 is back up and running again today after fixing 3rd gear and pulling the prototype oil pump for inspections.
I've installed an ATS front carbon diff, very interested to see how it goes.
CP9A chassis uses the viscous coupling unit for the centre diff, no ACD here.
Required some machining to make it work.