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moosestang
10-14-2014, 04:12 PM
I'm looking for a spot to put a T fitting for the boost/vacuum source. Besides the pcv hose, are there any small diameter vacuum hoses that see both vacuum and boost? Surely there is a fuel pressure regulator somewhere that has a hose going to it. I got an autometer gauge and it came with that hard nylon 1/8 inch tubing plus fittings, but the T is for small diameter vacuum hose.

markinmad
10-14-2014, 04:37 PM
I just did this on my T.

There's a black cap that's covering a nipple on the intake manifold. I removed the black cap, drilled a hole in it and glued the boost gauge hose into the cap. I suppose there could be a more elegant solution but that's what I came up with.

moosestang
10-14-2014, 04:46 PM
I just did this on my T.

There's a black cap that's covering a nipple on the intake manifold. I removed the black cap, drilled a hole in it and glued the boost gauge hose into the cap. I suppose there could be a more elegant solution but that's what I came up with.

So what's the cap there for? Is there a threaded hole behind it? I'll have to take the intake off and look around again.

shadowshaggy
10-14-2014, 06:52 PM
Madness sells a throttle body spacer that is threaded, will provide a link shortly.

shadowshaggy
10-14-2014, 06:55 PM
Here you go: http://shop.500madness.com/index.php?route=product/product&path=297&product_id=2433

moosestang
10-14-2014, 07:02 PM
For some reason, buying a throttle body spacer to install a boost gauge doesn't appeal to me. I can always get a barbed t fitting and put it in the pcv line, but that's going to be big and bulky.

Also removing the throttle body looks like a PITA!

shadowshaggy
10-14-2014, 07:10 PM
Not really, something like 30 minutes off and back on. Looks are very deceiving in these cars. After my first 3.5 hour downpipe experience, it now takes about 40 minutes.

moosestang
10-15-2014, 05:25 PM
Well the pcv hose looks like the best bet, but it's got to be 3/8 inch hose, so stepping that down for my 1/8 inch npt fitting is going to suck. that throttle body spacer is looking better and better.

moosestang
10-15-2014, 05:27 PM
I just did this on my T.

There's a black cap that's covering a nipple on the intake manifold. I removed the black cap, drilled a hole in it and glued the boost gauge hose into the cap. I suppose there could be a more elegant solution but that's what I came up with.

I'm thinking about removing that cap and clamping a hose to it with a barbed fitting for the boost gauge. does that nipple have a head on it?:redface:

shadowshaggy
10-15-2014, 05:29 PM
Remember, there's a cheap way and a right way to do everything. Take your pick sir, just giving you an option.

opiateESP
10-15-2014, 05:45 PM
Remember, there's a cheap way and a right way to do everything. Take your pick sir, just giving you an option.

I just T'd off a hose. I know you said it's not what you want to do... but for simplicity, it just works.

14898

moosestang
10-15-2014, 07:35 PM
I just T'd off a hose. I know you said it's not what you want to do... but for simplicity, it just works.

14898

that's what i'll end up doing. I always wanted to T off a hose, I was just looking for a smaller diameter hose.

opiateESP
10-15-2014, 09:46 PM
that's what i'll end up doing. I always wanted to T off a hose, I was just looking for a smaller diameter hose.

The T and hose size ended up being pretty spot on. It's a good spot I reckon.

Crossfirecat
10-16-2014, 03:04 AM
Be sure to install a filter in line if you tee off the pcv hose. I guarantee you'll get oil in the line! My vacuum readings would tend to start reading low every few months. I used to have to pull the hose off and blow it out with compressed air. I've since installed the tv soacer and pull boost from there. No more issues.
The barb on the manifold or the tb spacer are the best options. Plus you get a nice little bump in throttle response from the spacer. :)
Also, teeing off the pcv invites the opportunity for leaks under boost. I wouldn't say its the wrong way to do it.. Just not optimal.

opiateESP
10-16-2014, 03:09 AM
I'll take a closeup pic of exactly where I tee'd off tomorrow. I've disconnected the line quite a few times for hooking up the boost sensor on a dyno. No oil in it at all.

moosestang
10-21-2014, 12:04 PM
Ok, where the hell do ya'll run the boost line through the firewall? I don't even see a wireloom/grommet from looking inside the car.

opiateESP
10-21-2014, 12:18 PM
Ok, where the hell do ya'll run the boost line through the firewall? I don't even see a wireloom/grommet from looking inside the car.

Above the gas pedal, pull back the carpet tab, wham... perfect hole for boost line. Just pull out the rubber cover.

moosestang
10-21-2014, 12:23 PM
Above the gas pedal, pull back the carpet tab, wham... perfect hole for boost line. Just pull out the rubber cover.

Thanks, glad i asked. I started to try and remove the fuse box to get to a hole behind it.

pip
10-21-2014, 01:10 PM
I'll take a closeup pic of exactly where I tee'd off tomorrow. I've disconnected the line quite a few times for hooking up the boost sensor on a dyno. No oil in it at all.


please do.....im ready to install one

opiateESP
10-21-2014, 02:13 PM
please do.....im ready to install one

It is off the PCV line that goes into the intake manifold. No oil in there either. Still clean after 10,000 miles.

14963

moosestang
10-21-2014, 02:22 PM
Ok, how did you remove the cap on the intake nipple? I've tried squeezing it with some vise grips. I'm afraid to break it, that would suck!

moosestang
10-21-2014, 03:20 PM
Eh, I gave up for today. I'm going to cut the loop off tomorrow with a dremel. Stupid one time use hose clamps.

opiateESP
10-21-2014, 03:45 PM
Eh, I gave up for today. I'm going to cut the loop off tomorrow with a dremel. Stupid one time use hose clamps.

I didn't remove the cap. I just cut the existing line and put in a T.

moosestang
10-21-2014, 04:33 PM
I didn't remove the cap. I just cut the existing line and put in a T.

I'm going to remove the one time clamp on the intake manifold nipple and replace it with a worm clamp and straight fitting with short piece of 3/8 inch hose. I'll post a pic tomorrow after I'm done.

moosestang
10-22-2014, 05:28 PM
First off, a dremel with a carbon fiber cutoff wheel makes short work of that stupid factory clamp.

http://www.pbase.com/image/157933641.jpg

3/8 inch hose fits nicely over that unused nipple on the intake manifold. I had to order a 3/8 barb to 1/8 npt male fitting so i could use the compression fitting that came with the boost gauge. That's an odd size fitting for sure.

http://www.pbase.com/paulyoly/image/157933642.jpg

Just a generic gauge pod off amazon, hopefully someone will make a steering column gauge pod for the fiat that fits a normal size boost gauge and I'll end up swapping it out. I'm going to start bothering auto meter to make us one.

http://www.pbase.com/paulyoly/image/157933643.jpg

and a little revving video, got a little backfire going there.

https://www.youtube.com/watch?v=5OdOfxA5sl4

https://www.youtube.com/watch?v=5OdOfxA5sl4

moosestang
10-22-2014, 05:30 PM
How the hell do you imbed youtube videos on this forum? Sorry about the radio, I didn't even think about it.

Tweak
10-22-2014, 09:33 PM
How the hell do you imbed youtube videos on this forum? Sorry about the radio, I didn't even think about it.

http://www.fiat500usaforum.com/showthread.php?13130-How-to-post-pics-videos-on-the-forum

;)

moosestang
10-23-2014, 03:09 AM
http://youtu.be/5OdOfxA5sl4

Every forum has to be different.


http://www.fiat500usaforum.com/showthread.php?13130-How-to-post-pics-videos-on-the-forum

;)

moosestang
10-23-2014, 03:11 AM
In hindsight, a 90 degree elbow fitting would have been ideal, if they make such a thing in this size.