Got Boost ? (part 2).... Ramblings, tests and confusion
10-15-2002, 09:12 AM
#22
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I think you should tear out all of your gauge pods..
...and give them to me. I know the boost gauge isn't in the Wilson pod under the dash, but you'd better pull that out and give it to me too because of....you know...the magnetism and gravity situation....right?
10-15-2002, 09:42 AM
#25
What I notoced, without doing full VAG runs...>>>
is the reversed 110 drops out a little faster in 3rd gear. Spike to 20, then a fall-off to 15 or so (I think the reverse orientation is doing this as it needs just a bit more spring pressure since boost is blowing right up the piston/diaphram). In 4th, spikes to 20 and then wiggles back and forth between 18-20, something I never noticed with the Forge in normal orientation...again the spring thing in the reverse orientation is the reason I believe. "Feels" great though, and very linear and drivable.
10-15-2002, 09:59 AM
#26
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Certainly a possibility. Seems odd though. Why would the gauge lose pressure and not vacuum?
I don't hear any leaks/hissing or odd sounds.
It's rock solid on the vacuum side. It does register the pressure (peaks). It just will not show it holding steady.
It's not logical. It's a dumb mechanical device. (I'm not doubting your suggestion, I'm just "logically" confused by the whole deal.
It's rock solid on the vacuum side. It does register the pressure (peaks). It just will not show it holding steady.
It's not logical. It's a dumb mechanical device. (I'm not doubting your suggestion, I'm just "logically" confused by the whole deal.
10-15-2002, 10:39 AM
#29
Boost may go down as rpm increases and power still increase, my friend.
There is more at play than just manifold pressure. Remember, please, that normally aspirated cars have a power increase as the rpms rise also w/o *any* boost.
10-15-2002, 10:53 AM
#30
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Couldn't agree more. It's just odd. Stupid mechanical gauge with a hose connecting it
The gauge is also brand new and not beat up or anything.
It should be no biggie to swap it out. It's a press fit into the pod so I don't have to R&R the "A" pillar. I built in enough slack (in the vacuum and illumination wiring) to enable maintenance.
I also have a hand held vacuum & pressure gauge. I could run a hose out of the engine compartment, take a drive and compare. Either way I'll be doing this tonight.
Thank you for all your input. I appreciate it!
It should be no biggie to swap it out. It's a press fit into the pod so I don't have to R&R the "A" pillar. I built in enough slack (in the vacuum and illumination wiring) to enable maintenance.
I also have a hand held vacuum & pressure gauge. I could run a hose out of the engine compartment, take a drive and compare. Either way I'll be doing this tonight.
Thank you for all your input. I appreciate it!