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Post by Stinger on Jan 25, 2018 17:49:19 GMT -5
It would lean it out if you fixed the leaks.
It's safest to be at 12.5 or below for the AFR at full boost. Really we try to keep it at 12 or under when we're tuning.
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Post by tutulate on Jan 25, 2018 19:20:12 GMT -5
Ok. I will proceed with the catch can install and keep an eye on the A/F ratio. I forgot to say that I set my Girban adjustable fuel reg at 46lbs base. It sits at 43 with the vacuum line reattached.
Thanks, Shannon!
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Post by Stinger on Jan 25, 2018 20:17:59 GMT -5
You must not have much vacuum if it only drops 3psi.
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Post by tutulate on Jan 25, 2018 20:52:03 GMT -5
hmm...I was playing with it a week ago...I do know I set it at 46 base, and I can't remember if it dropped to 43 or 40. I run about 11"hg at idle. I will recheck it tomorrow. Of course, if my vacuum lines were leaking, I may not know exactly what I have yet, and will need to reset the fuel pressure.
edit: I will double check my numbers and open a new thread so that I am not cluttering this one up.
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Post by Stinger on Jan 26, 2018 2:11:40 GMT -5
That's about the right amount of drop for 11" of vac. Must be a pretty large cam since stock vacuum is in the 17-20" range at idle and decels to 21-23".
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Post by tutulate on Jan 26, 2018 22:36:08 GMT -5
Catch Can system is installed! It was tight fit due to the A/C drier connections and the stock intercooler being in the way, but with some judicious pipe flexing it is done! I am looking forward to an more oil free engine compartment!
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Post by tutulate on Apr 23, 2018 13:13:53 GMT -5
hmm,...Hi Shannon...I like the catch can system, but I am getting a LOT of oil smell in the car's hvac system. If I understand how this works, I can remove the vent filter on top of the catch can and route a 1" line to the turbo inlet line, correct? Could I also just remote mount the can filter itself to another location, say under the inner fender?
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Post by Stinger on Apr 23, 2018 14:18:39 GMT -5
You can mount the catch can wherever you want but try to get it as high as possible. If it's way down low it tends to accumulate a lot more oil.
You can also convert it to a "closed" system with a minimum 1" ID hose to the turbo inlet.
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Post by tutulate on Apr 23, 2018 14:34:54 GMT -5
I was thinking of leaving the catch can where you have it behind the passenger tower, but putting a hose on top of the can and extending just the pleated filter on top of the can outside the engine compartment, near the vam. This will be temporary until I can finish my FMIC/Microsquirt conversion. At that point I will make it a closed system as I will be getting rid of the VAM and route the 3" turbo inlet outside the engine compartment. Will extending just the filter itself cause problems?
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Post by Stinger on Apr 23, 2018 14:56:20 GMT -5
No, not as long as the hose is large enough to not impede flow out of the catch can.
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Post by tutulate on Apr 23, 2018 15:33:26 GMT -5
Awesome! Thanks Shannon! I planned on using a 1" line all the way.
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Post by tutulate on Jun 12, 2018 13:43:02 GMT -5
I have a location question, Shannon. If I am using a bypass valve, as well as venting the catch can and they are both connected to the turbo intake pipe, does it matter where they are each connected? It would seem to me that the bypass connection should be closer to the turbo than the catch can connection so that the can doesn't receive pressure. Is this correct?
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Post by Stinger on Jun 12, 2018 14:28:18 GMT -5
Unless the bypass dump is hooked directly to the catch can vent, it won't pressurize the can. Doesn't matter where it is in the intake pipe.
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Post by tutulate on Jun 12, 2018 18:35:21 GMT -5
Cool! That will simplify routing everything!
Thanks, Shannon!
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Post by 88turbobird on Jul 17, 2018 7:14:24 GMT -5
I'm going to do this but I have a question regarding the valve cover breather. The previous owner removed the valve cover breather/baffle and installed a small filter element. Do you see any issues with removing this filter and placing an elbow in the valve cover hole? The elbow would connect to a hose that runs to the catch can. I will also be removing the PCV valve and running a direct line to the catch can as stated in your instructions.
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