Dan4governor

Before I get ridiculed for this, yes I've spent at lease an hour or so searching this forum for my answers, but I still haven't figured it out.


Just did the 99+ intake swap on my 96 and I'm really confused on how to reconnect all those vacuum lines and the iat sensor, nothing seems to be in the same place for reinstallation. First of all, can I just use regular copper wire (like heavy gauge speaker wire) to extend the connector for the iat sensor?

Also, I'm not sure where all the vacuum lines get hooked up. On the new intake manifold there are three hose nozzles on the side (two smaller ones, and a bigger one between them, one of the smaller ones is capped), and on top by the throttle body there are two more (one bigger one, and a smaller one). Which vacuum lines get hooked up where? I'm assuming I'll need to extend them. Anyone done this upgrade? Pictures would be awesome.

Programbo

If you can wait until tomorrow I'll take some pics as I have done this mod. Vacuum lines can pretty much go anywhere as they are all getting their source from the intake so it doesn't matter where. You will need to get some longer tubing for some of them to reach. I didn't need to extend any wires though. I believe one of the larger vacuum connections on the top is in a threaded hole and I just swaped that with the sensor which is also in the same sized threaded hole.

salad

You'll definitely want to use wire that is oil/grease/gas resistant. Generic speaker wire is not. The stuff I have degrades at the first smell of petroleum lol. My local Princess Auto (sorta Canadian version of Harbor Freight) has spools of appropriate wire for pretty cheap.

This might help:


Looking to the right of the TB in that pic, the small hose is the CCV from the valve cover, the large hose is brake booster.

93XJLI

pretty much everything just "bolts in." i put my IAT as close to the throttle body as possible when I did it to my 93. i never extended any wires or vacuum lines.

Dan4governor

Thanks for the info, you guys are all super helpful. Here's what I ended up doing: switched the IAT with hose nozzle next to the throttle body, so I didn't have to extend the IAT cable, then extended the ccv (from valve cover) to the far top nozzle, plugged the power booster into the other top nozzle by the IAT, and plugged what I assume are two MAP hoses to two of the nozzles on the side (had to extend one of the lines). Check out the set up and tell me if anything looks bad or if it looks like I can try to fire it up

Programbo

That all looks good to me fire it up and report back

stang65

looks like it should work but is kinda cluttered

Dan4governor

Cluttered? This is what it was before:
if anything I'd say it looks less cluttered. Post a pic of yours so I can compare. I want to make sure I get this right. Thanks

motoo344

Looks pretty good to me.

stang65

my mistake its better than before lol. mines a different year jeep 93 so mines done differently. brake booster is in the center hole on the side. they vaccum is on the front hole on the side maf is on the rear hole side. the valve cover breather is the top rear. the fuel presure regulater is on the front top. I have a dead air sensor pluging the hole yours in and the air sensor in the intake tube.

I might recomend you tie your fuel line up though dont want that floating around.

Dan4governor

The fuel line is tied to a bracket on the side of the intake, just below it.

Dan4governor

Fired her up today and everything works great! thanks so much for the help. Butt dyno says more power from the intake and fuel injector upgrade (bosch ev6 injectors). people say the butt dyno doesn't matter, but I say it matters the most!

karl4x4

When I put mine onto a 88 block, 94 head, running with a 98 computer (in a 98 body) (and few other mods)
I didn't notice much on the butt dyno but when I hooked up the trailer and went up a hill I thought someone was pushing me. Barely had to give any more gas to keep the speed up. I turned it into a torque monster.
It will idle trough obstacles that previously required me to feather the clutch and give quite a bit of gas just to keep it from stalling. (and bouncing like crazy) Now, the idle speed barely changes speed and my food is off the gas.

It was sooooo worth it. (only cost me $50)

XJwonders

I like how blue u made it lol

karl4x4

Dito.. I wish I painted mine when I put it in. And I even had it out last week to weld a 02 bung on the exhaust manifold.
Not sure what color I would pick. my block is gunmetal blue