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Old 09-30-2010, 04:24 PM   #31
kjhallex
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lol darn... So this should count as a weight reduction also right???
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Old 09-30-2010, 04:24 PM   #32
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Yeah, ive given up trying to defend emissions systems.

My plan is to modify the system using nissan parts when i do a new tank. Nissan's purge valve is tiny, and the vent control and tank pressure sensor mount to the canister. Smaller, lighter, less plumbing.

Also, being as the GMPP spider manifold doesnt have EVAP provisions per se, i have to make this shit up as i go anyway.
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Old 09-30-2010, 04:28 PM   #33
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Quote:
Originally Posted by Konnie the Goat...View Post
Yeah, ive given up trying to defend emissions systems.

My plan is to modify the system using nissan parts when i do a new tank. Nissan's purge valve is tiny, and the vent control and tank pressure sensor mount to the canister. Smaller, lighter, less plumbing.

Also, being as the GMPP spider manifold doesnt have EVAP provisions per se, i have to make this shit up as i go anyway.

You must post pics and parts when you do this!
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Old 09-30-2010, 04:33 PM   #34
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I just walked outside and looked at it. Looks like it should be really easy, anybody know what size caps to cap the ends on the intake and line? Should I just use a rubber vacuum cap? If not what would work better?
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Old 09-30-2010, 04:51 PM   #35
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Quote:
Originally Posted by kjhallex...View Post
You must post pics and parts when you do this!

I will, but dont hold your breath. I burned a few bridges with my former mentor/engine building partner, which has slowed me down some. OK, slowed me down a lot.

As far as the parts, thats easy. They all come from a '10 370Z. Change the connectors, re route some harness, done.

Thats the awesome part of knowing how these systems work, and how they are all pretty much the same. I have my choice of lot of different parts.

Basically, im hoping we are busy enough at work that i have the fun money to finish what i have left (im worse than Scrooge when money gets even a little tight), but slow enough that I can tie up a lift in the shop for a few days to do the swap and install the remaining supporting mods. Then ill have to trailer it to Modern Muscle, as one of the bridges burnt led to the dyno.

Ever been to a plumber's house? He's got leaky faucets.
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Old 09-30-2010, 05:00 PM   #36
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Interesting, any reason you don't want to remove it completely?
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Old 09-30-2010, 05:07 PM   #37
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Because I personally feel that it is irresponsible to pollute for the hell of it. EVAP costs nothing in terms of power, and is about 7lbs in weight total. Not having it means venting a ton of raw Hydrocarbons into the air. Id rather burn those HC's than waste them.
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Old 09-30-2010, 05:14 PM   #38
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Quote:
Originally Posted by Konnie the Goat...View Post
Because I personally feel that it is irresponsible to pollute for the hell of it. EVAP costs nothing in terms of power, and is about 7lbs in weight total. Not having it means venting a ton of raw Hydrocarbons into the air. Id rather burn those HC's than waste them.

Good point, may think twice about this then lol.
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Old 09-30-2010, 05:34 PM   #39
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HC's are a major part of smog. PCV and EVAP are the two oldest Emissions systems, and between them eliminated 75-85% of all HC issues. Cats took care of the rest, long with EFI and better machining. NOx's (oxides of nitrogen) are the other half of smog, catalyzed by sunlight, and EGR deals with those. Except now EGR is done with cam design, head design, VCT and EFI.

Believe it or not, it is possible to make insane power, and still have an impressive lack of pollution. It just takes some good planning (and money). A well tuned/built engine will put out CO2 and water vapor. Poor emissions wastes power. Fact. The energy required to split diatomic nitrogen and bond it with Oxygen is energy that could be pushing the piston down.
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Old 09-30-2010, 07:32 PM   #40
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To further reduce crap running to the front, can the rear vacuum port on the intake manifold be used for the evap hose?
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Old 09-30-2010, 07:34 PM   #41
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Im pretty sure i mentioned tapping into the brake booster line, yes.
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Old 09-30-2010, 08:07 PM   #42
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Yea you did
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Old 09-30-2010, 08:12 PM   #43
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Unless it's a drag car or your some inbred hillbilly Don't Remove the EVAP. There is no gain other than clutter and moving it takes care of that.
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Old 09-30-2010, 08:19 PM   #44
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Originally Posted by LS2 tiger...View Post
Unless it's a drag car or your some inbred hillbilly Don't Remove the EVAP. There is no gain other than clutter and moving it takes care of that.

Depending on how observant they are in tech at a given track, they may not like an EVAP delete, I dunno. They require anti-flip vents for fuel cells, and EVAP's canister fills that role to a point good enough for them. leave a vapor hose hanging loose may not pass. i dont know.
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Old 01-01-2011, 03:34 PM   #45
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Doing the EVAP relocation now but cant seem to remove the vacuum hose from the back hard line. Dont want to break it.

How to remove?

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Old 01-01-2011, 07:52 PM   #46
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pinch and pull.
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Old 01-02-2011, 01:10 PM   #47
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Does not work. Is there an attachment on the inside of the pull off similar to a fuel line?
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Old 01-02-2011, 01:13 PM   #48
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not really.
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Old 01-02-2011, 01:22 PM   #49
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The inside of the clip wouldn't budge. With a thin screwdriver was able to press the tabs in. Thanks though.
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Old 01-02-2011, 02:12 PM   #50
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I couldnt get that damn thing off either, pulled, twisted, got frustrated, took a break, came back and it fell off... didn't break must have been something I did, but not sure how it finally came loose.
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Old 01-02-2011, 04:29 PM   #51
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Quote:
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I couldnt get that damn thing off either, pulled, twisted, got frustrated, took a break, and it fell off.




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Old 01-02-2011, 04:52 PM   #52
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Quote:
Originally Posted by mk9190...View Post


Wow, I guess reading that in the wrong context could be pretty bad! lol
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Old 07-15-2011, 02:39 PM   #53
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Bump for a non-searcher.

FWIW, i put in "evap", this section only, and it was the 4th thread.
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Old 07-15-2011, 07:01 PM   #54
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I took it out and threw it in the garbage!!!
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Old 03-22-2012, 12:18 PM   #55
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Quote:
Originally Posted by LFSADRG...View Post
Doing the EVAP relocation now but cant seem to remove the vacuum hose from the back hard line. Dont want to break it.

How to remove?


old thread i know.. but i just did this..

i used the same tool used to disconnect the fuel line, pops it right off!
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Old 05-01-2012, 07:20 PM   #56
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Couldn't figure out how to disconnect from the hard line, searched, found this thread and was able to get it pull right off. Thanks for the help.
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Old 05-01-2012, 07:23 PM   #57
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I have an 04 and I am running a vaccum manifold by the brake booster. The evap solenoid is zip tied to the mastercylinder and I expanded the wiring harness. Cleaned things up nicely...
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Old 05-01-2012, 09:49 PM   #58
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i zip tied mine to the back of the wire harness on the firewall..



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