got my boost gauge installed yesterday.
1. I'm seeing about 10 psi instantaneously when I floor it, and it creeps up to 12 psi at redline. Isn't this a bit higher than it should be ? (not that I'm complaining). Also this was on a very hot day, about 30 degrees celsius and the supercharger was burning my fingers to the touch.
2. also, I thought a supercharger gave psi progressively following the rpms, not instantaneously like that ? As I see it... the boost going from 0 to 10 psi in less than half a second when I floor it, even from 2500 rpm or so, must be pretty hard on the engine compared to a turbo which spools with rpm ? maybe I'm not understanding the whole thing correctly...
comments ?
15.574 @ 89 mph stock without charger. new times with charger coming soon.
oh yeah I'm runnign a cone filter at the end of the stock s tube if that means anything...
15.574 @ 89 mph stock without charger. new times with charger coming soon.
Wow I wish my supercharger boosted like yours. My experience is that I get 10 psi max. If I floor it below 2,500 RPM it peaks at about 5, then from 2500 to 3200 I get 8 and then from 3200 on up I am at 10.
Now I had a problem with my first gauge though. I had to send it back for a new one. Maybe it is possible that your gauge is bad.
it certainly looks like it's doing its job, though I don't know about calibration or stuff like that...
15.574 @ 89 mph stock without charger. new times with charger coming soon.
Basically what you need to do for calibration is when the car is off look at the gauge. If it doesn't sit in the 0 zone then it is not calibrated properly.
mine jumps up realy fast as well
same on my 2.4 ill hit 5psi at half throttle if the load is enough
the s/c is pumping air at idle speeds , so it builds boost very quickly
and yours sounds fine
The ECOnator (Encriptor) wrote:Basically what you need to do for calibration is when the car is off look at the gauge. If it doesn't sit in the 0 zone then it is not calibrated properly.
it does. guess I'm good to go then
15.574 @ 89 mph stock without charger. new times with charger coming soon.
"You're good to go? "
"Roger I am good to go"
You are fine enjoy it, and if you do not have the intercooler hooked up it will get hot, and I am not going into the whole thermodynamics behind, once you hook in an intercooler it will get cooler....
air to water intercooler?
Marchi1 wrote:"You're good to go? "
"Roger I am good to go"
You are fine enjoy it, and if you do not have the intercooler hooked up it will get hot, and I am not going into the whole thermodynamics behind, once you hook in an intercooler it will get cooler....
actually I was thinking about it and I cannot figure out why the s/c would be cooler, since you're cooling the air in the intake mani which is past the s/c... unless since it's cooling the intake mani the metal conducts the lower temperature to the s/c which is pressed against it... am I missing something ?
15.574 @ 89 mph stock without charger. new times with charger coming soon.
My sc stays hot but the manifold is as cool as it was when i pull the car out of the garage
Blown DanteMustDie wrote:unless since it's cooling the intake mani the metal conducts the lower temperature to the s/c which is pressed against it.
I can't think of any reason why this wouldn't happen.
As for the instant boost... that's part of the beauty of the blower. It doesn't have to "spool up". When you floor it and take away the vacuum at the bypass valve, it snaps shut and POOF! All the boost is there and ready to go. It's already "spooled" so to speak.
And it should really give about the same level of boost all through the rpm range. It's not like a turbo or centrifugal blower that will generate more and more boost non-linearly.
Everything sounds fine to me.
God i need to get my guage hooked up. Still have to get the right fittings, lol
okay my supercharger is coming this week where do i hook the boost gauge too.
thanks jamees
fpr line
14.425 @ 97.833 mph stock + GMPP s/c on drag radials.
