Map line T fitting

I was driving home today on the Interstate traveling about 65-70 and I punched it and my boost only went to 15psi...

I got home and popped the hood, Looks like the rubber portion where the boost line goes into and the rubber piece wraps around the barbed T fitting isn't sitting right on the T fitting... If that wasn't sitting on the fitting right, would it measure less boost? I know I make more than that... Is there a different T fitting other than the Autometer plastic one? Or should i just figure a way to seat this rubber piece much more solid?

The t fitting isnt cracked or anything is it, did you take it out and inspect it? i would think that would be kinda hard to break, but maybe its old and brittle. Im sure you could find a ss t-fitting at like napa or something, then you could tighten down those lines nice and firm and not worry about it leaking.

I would switch out that cheap Autometer tee for some brass parts. 1/16 compression works for the normal mapline tube. The Parker store also has some great parts to quick connect the airlines.

I built my T fitting outa 3 brass pieces from napa. Works flawlessly with my isspro boost line/gauge.

I'm sure if it wasn't seated correctly that's where you lost boost.

Another vote for a home built T out of brass. I bought my parts in the plumbing section of the hardware store. Cost about $10.

Same here. Can't stand that plastic crap you get in the kits. Build your own. Put new rubber hose on too. That way you know there's no issues inside the old one.

7.3psd97444 said:

I built my T fitting outa 3 brass pieces from napa. Works flawlessly with my isspro boost line/gauge.

I'm sure if it wasn't seated correctly that's where you lost boost.

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:whs:,except i got the fittings from discount/advance whatever they are calling it now

If you have a Parker store in your area the 1/16 air line kicks butt over the stuff packaged with most gauges. Way more kink resistant and not expensive.

Not sure about a Parker store, But I will run down to the Napa or O'Rielly's tomorrow and pick up some pieces to make a brass T.

It was definitely a bit unnerving to have it only hit 15psi on the way home...

95powersmoker said:

Not sure about a Parker store, But I will run down to the Napa or O'Rielly's tomorrow and pick up some pieces to make a brass T.

It was definitely a bit unnerving to have it only hit 15psi on the way home...

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Must be nice. I saw 18 on mine once....LOL

7.3psd97444 said:

Must be nice. I saw 18 on mine once....LOL

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It's only money...

Should have been pushing close to 30 when I was seeing a constant 15psi. I figured I had screwed something up again...

95powersmoker said:

Not sure about a Parker store, But I will run down to the Napa or O'Rielly's tomorrow and pick up some pieces to make a brass T.

It was definitely a bit unnerving to have it only hit 15psi on the way home...

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Hardware store dude, I almost guarantee you'll get what you need cheaper than Napa or Orielly's will have it.

95powersmoker said:

It's only money...

Should have been pushing close to 30 when I was seeing a constant 15psi. I figured I had screwed something up again...

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yeah its all bout what you wanna put in em. opps, derail. lol. Hope ya get your boost leak figured out man.

superduty4x4 said:

Hardware store dude, I almost guarantee you'll get what you need cheaper than Napa or Orielly's will have it.

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I'll stop by there later today and see what they got for me..

Home Depot...

WHS^^^ home depot has the same stuff cheaper than most places. And it may make a difference in the boost it reads, but its a vacuum so it should be trying to suck it together than blow apart

Don't feel like driving 35 miles to the nearest home depot. Would much rather just get it in town.

Are the barbed sides 1/4" or 1/8"?

The tubing I have is 1/8" so just need to find a compression fitting.

Home depot or any store that has it would prob. be cheaper than some place that sells it as a specialty

Barbed fittings are 1/4"... T is 1/4"...

What Joe said. Line is 1/4". If your boost line is 1/8" then get a compression fitting that will fit it accordingly w/ whatever size NPT the "t" is on the other.