boost guage gearing
Senior Member
Joined: May 2001
Posts: 3,300
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From: Richmond, VA, USA
I don't think it is geared, I think it has a little diaphram (sp?) in there. it is a mechanical connection, a vacuum hose actually goes into the back of the guage. but then again, I have never broken one apart to see for sure... I'll have to put it on my list of things to break
later,
chris
later,
chris
Senior Member
Joined: Dec 2000
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From: Auburn Wa
Since I to like the stock look, I just hook up a guage and run the tubing in thru the window and go drive the truck. The gauge tells me what I want to know and then I unhook it and I'm finished.
A supercharged motor isn't going to change boost much .... its not like a turbo motor with an adjustable waste gate were you have to keep an eye on it.
Dale
A supercharged motor isn't going to change boost much .... its not like a turbo motor with an adjustable waste gate were you have to keep an eye on it.
Dale
Member
Joined: Aug 2002
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From: Rogersville,Tn
"Aren't our boost gauges electrical?"
LOCOSVT beat me to it. If is is electric, just measure the ohms across the gauge and put a resistor of the same value in series with the gauge. That should double the range of the gauge.
LOCOSVT beat me to it. If is is electric, just measure the ohms across the gauge and put a resistor of the same value in series with the gauge. That should double the range of the gauge.
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Joined: Nov 2001
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From: Redmond, Wa
Originally posted by 68Ranger
"Aren't our boost gauges electrical?"
LOCOSVT beat me to it. If is is electric, just measure the ohms across the gauge and put a resistor of the same value in series with the gauge. That should double the range of the gauge.
"Aren't our boost gauges electrical?"
LOCOSVT beat me to it. If is is electric, just measure the ohms across the gauge and put a resistor of the same value in series with the gauge. That should double the range of the gauge.
Senior Member
Joined: Jun 1999
Posts: 392
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From: Chandler, AZ
Here's my boost gauge thoughts I shared on this board back on 4-04-2001. Seems like a good time to share them again 
:
:
Originally posted by JoeLightning
Let’s put this into perspective. The boost gauge is just a toy. It does show when boost is being made and when it is not, but that is all. (Remember that the boost bypass valve is open whenever there is manifold vacuum like low power settings.) It’s not like on a turbo car where the boost gauge is providing useful information about the operation of the wastegate. The boost that our L’s make is strictly a resultant of upstream pressure losses (ie maf, k&n filter), blower rotor clearance tolerances, and RPM.
Critical gauges are provided to monitor some function that the driver may use to change a course of action. Our speedometer lets us calculate how high the fine will be when were pulled over. Our tachometer in our automatic transmission’ed truck, that will not change gears when manually commanded, is again just a toy. The oil pressure gauge is just a analog light. Ever wonder why it never moves with RPM? It’s a vital engine function gauge but Ford believes all we really ‘need’ to know is when we don’t have enough, so they made it a gauge that acts like light ….. it’s in the middle when ‘there is enough’. Water temp is critical and it is important that it provides accurate numbers. And finally the fuel gauge, which tells us when to pay up to OPEC for all the fun were having (but why does it take 75 miles to fall off of full?).
Anyway it’s just a toy, so go out and play and see how fast the full gage moves when the boost gauge is at it’s max.
------------------
Joel.......
99.5 White Lightning,
SVT # 0056
Let’s put this into perspective. The boost gauge is just a toy. It does show when boost is being made and when it is not, but that is all. (Remember that the boost bypass valve is open whenever there is manifold vacuum like low power settings.) It’s not like on a turbo car where the boost gauge is providing useful information about the operation of the wastegate. The boost that our L’s make is strictly a resultant of upstream pressure losses (ie maf, k&n filter), blower rotor clearance tolerances, and RPM.
Critical gauges are provided to monitor some function that the driver may use to change a course of action. Our speedometer lets us calculate how high the fine will be when were pulled over. Our tachometer in our automatic transmission’ed truck, that will not change gears when manually commanded, is again just a toy. The oil pressure gauge is just a analog light. Ever wonder why it never moves with RPM? It’s a vital engine function gauge but Ford believes all we really ‘need’ to know is when we don’t have enough, so they made it a gauge that acts like light ….. it’s in the middle when ‘there is enough’. Water temp is critical and it is important that it provides accurate numbers. And finally the fuel gauge, which tells us when to pay up to OPEC for all the fun were having (but why does it take 75 miles to fall off of full?).
Anyway it’s just a toy, so go out and play and see how fast the full gage moves when the boost gauge is at it’s max.
------------------
Joel.......
99.5 White Lightning,
SVT # 0056
Thread Starter
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Member
Joined: Oct 2001
Posts: 58
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From: Northville, MI, USA
wow. what a range of answers... how can we improve the accuracy of the stock gauage? and short of tearing out the gauge, how can we determine exactly how it operates (mech, elec, etc.)?
thanks for all the help guys!
thanks for all the help guys!
Senior Member
Joined: Jun 1999
Posts: 392
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From: Chandler, AZ
Bret, so you don't agree with my previous post - that the boost gauge is just a toy thing? Can you explain why you care if it is accurate or not? What would you do with this accurate boost information that you can't do with the inaccurate data you get now?
Joel.......
Joel.......
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Joined: Sep 2002
Posts: 803
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From: Belleville, MI
ok this is a dumb ?, but let's say i put a 4lb pulley and didnt get an aftermarket gauge. what would the stock gauge do? just go to 10lb's like always even though it's actually at 12lbs? how would the stock boost gauge work with the extra boost?
Senior Member
Joined: Jun 1999
Posts: 392
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From: Chandler, AZ
cobra,
Decent question. Answer: It will just peg out past the end of the 10 lb scale. I'm unaware of anyone stating that it has damaged their gauges. I personally can't see how it could.....
Joel
Decent question. Answer: It will just peg out past the end of the 10 lb scale. I'm unaware of anyone stating that it has damaged their gauges. I personally can't see how it could.....
Joel
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Joined: Apr 2000
Posts: 12,632
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From: Stinkin Joisey
As was stated before, the boost gauge is mechcanial, with a vacuum line running to the back of it. There was a post about someone (Ruslow I think) redoing our dashes to increase the speedometer to 200mph and the boost to 20lbs. If I remember right, the price was approx $350. But you had to send out your dash to him.
I don't want to come off like the search police, but do a search for Ruslow or maybe even dashes
I don't want to come off like the search police, but do a search for Ruslow or maybe even dashes
Senior Member
Joined: Apr 2000
Posts: 2,854
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From: NY/NJ
If I keep this up...I'll wear out my search button
https://www.f150online.com/forums/sh...threadid=92515
https://www.f150online.com/forums/sh...threadid=92515
Senior Member
Joined: Dec 2001
Posts: 318
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From: Hamilton, NJ
I believe someone over on NLOC was offering to re-do the gauges. Or offer "stock" replacements. They were talking about a 175mh speedo, and 20lb boost gauge. You might want to check over there. I will look to see if I can find the link. Good Luck
Keith
Keith
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Joined: Dec 2001
Posts: 318
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From: Hamilton, NJ
http://www.nloc.net/forum/showthread...825#post208825
Check out this link...its a 200mph speedo and a 15lb boost gauge
for 350
Check out this link...its a 200mph speedo and a 15lb boost gauge
for 350