Where to hook boost gauge on paxton

nasty92LX · July 30th, 2007, 03:54 PM

I have my boost gauge hooked up on the head unit and i was told it is not so post to be hooked up there .

nolife · July 30th, 2007, 04:19 PM

I have mine attached to the factory vacuum tree that is mounted on the firewall.

jam77 · July 30th, 2007, 10:34 PM

just curious where on the head unit did you hook that? I have a paxton and theres nothing on mine, i hooked mine into the tree thats on the fire wall also. I just used the one that was capped off seems to work just fine.

nasty92LX · July 30th, 2007, 11:39 PM

i have a older sn 89. it is right where the intake tube is how many in from the center is you boost gauge hook on the tree.

nolife · July 31st, 2007, 09:08 AM

Mine is on the second one but that does not matter. All the boost gauge is doing is measuring vacuum and/or boost. You can attach it to just about any vacuum line and it should be fine. If you only have a boost gage (like 0 to 15 lb or similar), you will only see positive boost, if you only have a vacuum gage (like -30 to 0), you will only see vacuum, if you have a vacuum/boost gage, you will see the entire range negative and positive (like -30 to +15 or similar). If you decide to switch gages later, you can use all of your existing work and lines you already put in for your current gage.

Not sure what the port on your Paxton is for and why it is suggested to not use it for a gage. Maybe it is tied to the compressor output and can be used as an "accurate" source for an FMU or a boost retard which both are boost sensitive? Again, no idea.

nasty92LX · July 31st, 2007, 11:19 AM

ok thats i will do that.

nasty92LX · July 31st, 2007, 11:22 AM

i ran 14.20 @ 98mph when there was no charger on it. Im running 5-6 psi i was wondering what should i pick up.

nolife · July 31st, 2007, 12:13 PM

Another thing to consider. With boost, you have to be more concerned with detonation. You may have to reduce your timing a bit. Stock is 10 degrees. Most people take it closer to 15. Although I have no experience with 5-6 lbs and your engine, I would think the factory setting of 10 degree would be a good starting point and you can raise it from there. Either way, keep that in mind.

nasty92LX · July 31st, 2007, 12:17 PM

yea i have it a 17 and it was fine there was no detonation but i put it back down to 10 to be safe

July 30th, 2007, 03:54 PM	#1
nasty92LX Regular Join Date: Mar 2007 Posts: 184 iTrader: 0 reviews	Where to hook boost gauge on paxton I have my boost gauge hooked up on the head unit and i was told it is not so post to be hooked up there .

July 30th, 2007, 04:19 PM	#2
nolife MM Fanatic 91GT, 88GT, 02GT Join Date: Dec 2006 Posts: 3,057 Blog Entries: 3 iTrader: 0 reviews	I have mine attached to the factory vacuum tree that is mounted on the firewall. __________________

July 30th, 2007, 10:34 PM	#3
jam77 Enthusiast 1987 Mustang GT Join Date: Apr 2007 Location: IL Posts: 685 iTrader: 0 reviews	Where to hook boost gauge on paxton just curious where on the head unit did you hook that? I have a paxton and theres nothing on mine, i hooked mine into the tree thats on the fire wall also. I just used the one that was capped off seems to work just fine. __________________ 87 GT, typhoon upper and lower,70mm tb, 90mm maf, bbk shorties, bbk x-pipe, flowmaster cat back, 3:73 gear, pro 5.0 shifter, novi blower,afm power pipe, load IO, Trick Flow heads, Anderson B-31 cam, Anderson PMS, 42 lb injectors, t-rex fuel pump.

July 31st, 2007, 09:08 AM	#5
nolife MM Fanatic 91GT, 88GT, 02GT Join Date: Dec 2006 Posts: 3,057 Blog Entries: 3 iTrader: 0 reviews	Mine is on the second one but that does not matter. All the boost gauge is doing is measuring vacuum and/or boost. You can attach it to just about any vacuum line and it should be fine. If you only have a boost gage (like 0 to 15 lb or similar), you will only see positive boost, if you only have a vacuum gage (like -30 to 0), you will only see vacuum, if you have a vacuum/boost gage, you will see the entire range negative and positive (like -30 to +15 or similar). If you decide to switch gages later, you can use all of your existing work and lines you already put in for your current gage. Not sure what the port on your Paxton is for and why it is suggested to not use it for a gage. Maybe it is tied to the compressor output and can be used as an "accurate" source for an FMU or a boost retard which both are boost sensitive? Again, no idea. __________________

July 31st, 2007, 12:13 PM	#8
nolife MM Fanatic 91GT, 88GT, 02GT Join Date: Dec 2006 Posts: 3,057 Blog Entries: 3 iTrader: 0 reviews	Another thing to consider. With boost, you have to be more concerned with detonation. You may have to reduce your timing a bit. Stock is 10 degrees. Most people take it closer to 15. Although I have no experience with 5-6 lbs and your engine, I would think the factory setting of 10 degree would be a good starting point and you can raise it from there. Either way, keep that in mind. __________________

July 30th, 2007, 11:39 PM	#4
nasty92LX Regular Join Date: Mar 2007 Posts: 184 iTrader: 0 reviews	i have a older sn 89. it is right where the intake tube is how many in from the center is you boost gauge hook on the tree.

July 31st, 2007, 11:19 AM	#6
nasty92LX Regular Join Date: Mar 2007 Posts: 184 iTrader: 0 reviews	ok thats i will do that.

July 31st, 2007, 11:22 AM	#7
nasty92LX Regular Join Date: Mar 2007 Posts: 184 iTrader: 0 reviews	i ran 14.20 @ 98mph when there was no charger on it. Im running 5-6 psi i was wondering what should i pick up.

July 31st, 2007, 12:17 PM	#9
nasty92LX Regular Join Date: Mar 2007 Posts: 184 iTrader: 0 reviews	yea i have it a 17 and it was fine there was no detonation but i put it back down to 10 to be safe

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