OK I'm going to do it: THAT'S RIGHT I'M BUYING A POPCHARGER (and I'm not even a newb)
Get that thing on there! I'm real curious to see how airflow and temps compare here. I've monitored my temps and flow with the pc, but never took a look at the stock box behavior before hand. It looks like Dave B did a pretty good job with his "open air box pc emulation". Temps definitely behave like he indicated when at a stand still, with the big spike, and it may take a bit longer than 20 seconds to cool off if you really get the system heat-soaked. The runs I logged were in stop and go heavy traffic for the stand still. Just rolling briefly before stopping again did nothing to lower temps, but once I got to open air it went down pretty quickly, longer than 20 seconds though, maybe 30+ IIRC. Logs are on a different computer so I can't double-check that right now.
From a purely selfish standpoint, I hope your stock box does have the ring, just so the data you get here applies directly to my setup.
From a purely selfish standpoint, I hope your stock box does have the ring, just so the data you get here applies directly to my setup.
Here's the first chart guys. Edit: took the chart down because IMO it's misleading.
It seems, on average, there is a definite improvement in airflow. I compared several before runs to several after runs, and while there was some overlap, the popcharger is more consistent in delivering higher mass flow at higher RPM.
The stock airbox sometimes matches, but does not seem to beat the performance of the popcharger.
The stock airbox is definitely still good. No doubt about it. But the popcharger is just a little bit better...
Coming soon, charts with intake temperature rise at idle.
Did I mention this thing is LOUD? I never appreciated just how loud it was until it was on my car, but it sounds great
It seems, on average, there is a definite improvement in airflow. I compared several before runs to several after runs, and while there was some overlap, the popcharger is more consistent in delivering higher mass flow at higher RPM.
The stock airbox sometimes matches, but does not seem to beat the performance of the popcharger.
The stock airbox is definitely still good. No doubt about it. But the popcharger is just a little bit better...
Coming soon, charts with intake temperature rise at idle.
Did I mention this thing is LOUD? I never appreciated just how loud it was until it was on my car, but it sounds great
Last edited by Wired 24/7; Sep 28, 2006 at 06:50 PM.
Originally Posted by Wired 24/7
Yeah I was thinking the same thing, if the popcharger sucks I'll probably go with a 2006 airbox
Or you can just buy my current HG intake setup... LOL!
I'm considering another custom setup, just not sure it's worth all the money for a 10whp... ie 4" intake, piggyback and tuning???
Nice tests by the way, both you and daveB...
Zquicksilver
Last edited by Zquicksilver; Sep 27, 2006 at 01:04 PM.
Originally Posted by Zquicksilver
Or you can just buy my current HG intake setup... LOL!
I'm considering another custom setup, just not sure it's worth all the money for a 10whp... ie 4" intake, piggyback and tuning???
Nice tests by the way, both you and daveB...
Zquicksilver
I'm considering another custom setup, just not sure it's worth all the money for a 10whp... ie 4" intake, piggyback and tuning???
Nice tests by the way, both you and daveB...
Zquicksilver
Originally Posted by charlie_rdstr_Z
That needs thermal ducting and insulation to be effective. The stock air box is thick plastic and has insulation to prevent heat. Heat = knock = loss of power = piston damage = even more power loss = unhappy Z owner.
How long do you think the air in that box sits stagnate soaking up heat before it's sucked into the motor by a 3" intake? And how long when the car is being driven down the road at 30-70mph, refreshing that area in front of engine bay with ambient outside temperatures. I would guess about 1/10 of a second. Huge... right?
Nissan engineered the stock box to be efficient, sturdy, and heat/sound effective. Problem is, it just would fit around my conical filter
Zquicksilver
Originally Posted by Zquicksilver
I think your being a little dramatic, lol.
How long do you think the air in that box sits stagnate soaking up heat before it's sucked into the motor by a 3" intake? And how long when the car is being driven down the road at 30-70mph, refreshing that area in front of engine bay with ambient outside temperatures. I would guess about 1/10 of a second. Huge... right?
Nissan engineered the stock box to be efficient, sturdy, and heat/sound effective. Problem is, it just would fit around my conical filter
Zquicksilver
How long do you think the air in that box sits stagnate soaking up heat before it's sucked into the motor by a 3" intake? And how long when the car is being driven down the road at 30-70mph, refreshing that area in front of engine bay with ambient outside temperatures. I would guess about 1/10 of a second. Huge... right?
Nissan engineered the stock box to be efficient, sturdy, and heat/sound effective. Problem is, it just would fit around my conical filter
Zquicksilver
When I datalogged at the drag strip, the intake temp did not reach ambient until I hit 3rd gear.
Originally Posted by Zquicksilver
I think your being a little dramatic, lol.
How long do you think the air in that box sits stagnate soaking up heat before it's sucked into the motor by a 3" intake? And how long when the car is being driven down the road at 30-70mph, refreshing that area in front of engine bay with ambient outside temperatures. I would guess about 1/10 of a second. Huge... right?
Nissan engineered the stock box to be efficient, sturdy, and heat/sound effective. Problem is, it just would fit around my conical filter
Zquicksilver
How long do you think the air in that box sits stagnate soaking up heat before it's sucked into the motor by a 3" intake? And how long when the car is being driven down the road at 30-70mph, refreshing that area in front of engine bay with ambient outside temperatures. I would guess about 1/10 of a second. Huge... right?
Nissan engineered the stock box to be efficient, sturdy, and heat/sound effective. Problem is, it just would fit around my conical filter
Zquicksilver
Originally Posted by Wired 24/7
It takes longer than 1/10 of a second... at least 8 seconds or more.
When I datalogged at the drag strip, the intake temp did not reach ambient until I hit 3rd gear.
When I datalogged at the drag strip, the intake temp did not reach ambient until I hit 3rd gear.
But I would bet that my HG box, that simulates the stock box, doesn't see any significant temperature changes at idle or when driven.
Zquicksilver
Originally Posted by charlie_rdstr_Z
I'm sure they leaned towards power over comfort/quietness/old people friendly because they tried to max out the VQ. That's why bolt ons don't do much. Since my city has tons of unneccessary stop signs and traffic lights, I don't want to lose hp and get defeated by a minivan.
I did state that Nissan made the stock box semi-efficient, did I not? And take a gander at the new VQHR. Nissan has basically visited these boards and seen what the n/a tuners have done and copied it. Better intake, improved head work, equal length headers, x-cross section on true dual exhausts, better cats, etc. ect.... kind of interesting that Nissan has taken the time to re-think a couple of things for 2008, isn't it?
Zquicksilver
Last edited by Zquicksilver; Sep 27, 2006 at 02:32 PM.
Originally Posted by Zquicksilver
LOL... unless your referring to the V10 Renult concept Minivan from a few years ago, you have nothing to worry about. That is unless you don't know how to drive.
I did state that Nissan made the stock box semi-efficient, did I not? And take a gander at the new VQHR. Nissan has basically visited these boards and seen what the n/a tuners have done and copied it. Better intake, improved head work, equal length headers, x-cross section on true dual exhausts, better cats, etc. ect.... kind of interesting that Nissan has taken the time to re-think a couple of things for 2008, isn't it?
Zquicksilver
I did state that Nissan made the stock box semi-efficient, did I not? And take a gander at the new VQHR. Nissan has basically visited these boards and seen what the n/a tuners have done and copied it. Better intake, improved head work, equal length headers, x-cross section on true dual exhausts, better cats, etc. ect.... kind of interesting that Nissan has taken the time to re-think a couple of things for 2008, isn't it?
Zquicksilver
Of course everything can be improved upon. They would lose money if they didn't. At the time it was the best technology. I'm sure their engineers seek professionals from their race team before they visit here. Also consider their budget is higher now that their first re release of the Z was a success otherwise the VQ would not become the next VQ.
My point is I dyno higher with just an exhaust for looks than a couple other people with many bolt ons on the same machines. They have the hood open so I doubt it is the hot air intake killing their HP and torque.
