DansBlkonBlkZ06

How do you abandon the evaporator canister on the right side? With the new hoop on my cage install, there is no room for the canister. I know it is to be removed, but how do I abandon the vent line? If I just cap it, wouldn't that create an unwanted pressure in the tank? Do I just cap the other hoses? Thanks

RX-Ben

Post pics.

travisnd

Just take it out. The passenger side tank already vents to atmosphere. Had it this way since 2011 w/o any issues.

fatbillybob

Be careful. The venting and tank are a sealed system and part of a safety system so the car can't leak fuel if you are upside down.

DansBlkonBlkZ06

so I seal off the vent on the passenger side or leave it vented to atmosphere? Maybe put a check valve or something on the end?

RX-Ben

I think all the vent fittings have check valves already, but double check the larger fittings (remove the crossover tube and still a metal wire in there and see if it hits something).
You need to vent those (or devise another setup) or else the tanks will not be able to adequately breathe, leading to various issues.

MySR71

Another option is to modify the backwall to allow room for the canister. I don't know all the details on how it was done on my car, but here's a picture. In the picture, the black area with paint runs has been modified with a bulge to allow room for the canister.

z06801

The shop that did mine capped them all and now it won't take fuel. 10 minutes to get it like 7gallons in the tank.

dfinke23

Cap with check valves if not already:

http://www.jegs.com/i/JEGS-Performan...rentProductId=

z06801

Would that solve my problem do you think?

RX-Ben

Yes - venting will fix the slow fill issue. You are also going to possibly kill your fuel pump, but I might be full of baloney on that one.

RX-Ben

I also like to vent above the filler neck/gas cap.
Retaining the charcoal cannister w/o keep the venting solenoid and associated plumbing in place doesn't do a lot of good, as the cannister needs the vacuum to allow the charcoal work effectively. Does make for good ballast in that location though.

Also - what did they cap them with? May want to check the condition as most things don't stand up to gasoline.

z06801

Thank you! I hope this help the OP also to not make the same mistake. I would also get a vapor lock after 4-5 laps and have to come in and the problem keep me from running at nationals.
BTW that Mantic clutch you sold me rocks! Thanks for that as well

RX-Ben

Well, thank you as I think I did a search and came across your post about this a while ago and realized I was going to have the same issue, for the same reason, so I did a lot of searching as to how to avoid the slow fill and fuel flow issues.

96CollectorSport

The roll-over valve or check valve is part of the fuel tank, I've confirmed that on a 02 and an 03+ so you should be able to remove everything without issues with fuel running out if rolled. (I'm not sure if the early 97-99 systems are the same as an 02)

Actually on one car if you filled it all the way out fuel would spill out of the RH tank - that told us that the roll-over valve was screwed up. We put in a new RH tank and all was well. I looked into installing an aftermarket check valve but didn't find anything that I liked.

You will know if things are working properly simply by filling your tank, if the fuel spills out of the RH tank something is wrong, if it goes up the filler neck then all is well.

RX-Ben

Thanks for confirming. From travis's experience, it seemed like these were "special" check valves in that they work as a typical tip-over valve, but are also pushed close by gasoline.

DansBlkonBlkZ06

Mine's an '02 so that's good to know. Thanks for the info.