JDM Phenolic Spacer Graphs
#22
Do you guys think the increase comes from the straightening of the airflow path, or the heat insulation?
The reason I ask is because I did a bunch of intake testing where I was pulling inside vs. outside air and found that significant changes in intake temps don't seem to change the second air charge temp (after blower) much. If changing the temp of the air at the intake didn't make much difference, I wonder how much the air is heated in the plenum?
In order to create 10HP, you would need a 10-20 degree drop in temps or so at the second air charge by my humble estimates.
I'm certainly not doubting your dyno numbers as they seem pretty well controlled. The second pull shows the same trend.
Anyway, just curious everyone's thoughts.
The reason I ask is because I did a bunch of intake testing where I was pulling inside vs. outside air and found that significant changes in intake temps don't seem to change the second air charge temp (after blower) much. If changing the temp of the air at the intake didn't make much difference, I wonder how much the air is heated in the plenum?
In order to create 10HP, you would need a 10-20 degree drop in temps or so at the second air charge by my humble estimates.
I'm certainly not doubting your dyno numbers as they seem pretty well controlled. The second pull shows the same trend.
Anyway, just curious everyone's thoughts.
#26
Originally posted by ken800
Do you guys think the increase comes from the straightening of the airflow path, or the heat insulation?
The reason I ask is because I did a bunch of intake testing where I was pulling inside vs. outside air and found that significant changes in intake temps don't seem to change the second air charge temp (after blower) much. If changing the temp of the air at the intake didn't make much difference, I wonder how much the air is heated in the plenum?
In order to create 10HP, you would need a 10-20 degree drop in temps or so at the second air charge by my humble estimates.
I'm certainly not doubting your dyno numbers as they seem pretty well controlled. The second pull shows the same trend.
Anyway, just curious everyone's thoughts.
Do you guys think the increase comes from the straightening of the airflow path, or the heat insulation?
The reason I ask is because I did a bunch of intake testing where I was pulling inside vs. outside air and found that significant changes in intake temps don't seem to change the second air charge temp (after blower) much. If changing the temp of the air at the intake didn't make much difference, I wonder how much the air is heated in the plenum?
In order to create 10HP, you would need a 10-20 degree drop in temps or so at the second air charge by my humble estimates.
I'm certainly not doubting your dyno numbers as they seem pretty well controlled. The second pull shows the same trend.
Anyway, just curious everyone's thoughts.
But what I found the most interesting is what happens on the hot motor. This is when the spacer really shines. Hp increases (13)425 vs 438 and torque (22)546 vs 568
So this makes me think on the street is where this will really shine. And if you can see in my pics, there is a large space between the plenum and rotor packs now. This will allow air to circulate thru and aid in pulling heat off the packs.
But what do I know, EXCEPT IT DOES WORK.
Which brings me to the question, "If I was man enough to bash this mod at every chance, Shouldn't I would be man enough to admit I was wrong, and it does work?"
I mean, its not like I've never been wrong!
#28
yup
proof is in the pudding!!! The runs with the spacer were made within a minute if that and that intake felt like mine would after it's sat with some ice for a while!!!
Amazing
I think the power comes from straightening the air flow, but seperating the heat from the intake consistantly is where this shines as well.
Amazing
I think the power comes from straightening the air flow, but seperating the heat from the intake consistantly is where this shines as well.
#29
I expected these kind of gains. Similar to what a chip does for our trucks. I don't know about you guys, but I only gained 10hp/10 torque throughout the whole band with my chip.
That 10/10 through the whole band made for a .5 reduction in ET and +5mph in the end. But I gather the shifting and lack of cylinder shutoff had a lot to do with it.
Now, think about this idea.
What if we put phenolic spacers between the bottom of the supercharger and lower intake? I bet you could gain more than twice as much than what is seen here.
On top of that (no pun) the more boost you run, the more you gain (rather the less power you lose due to heat) since heat is the main problem of our trucks. I bet we could raise the usable boost on stock blowers to about 18psi with strategically placed spacers.
That 10/10 through the whole band made for a .5 reduction in ET and +5mph in the end. But I gather the shifting and lack of cylinder shutoff had a lot to do with it.
Now, think about this idea.
What if we put phenolic spacers between the bottom of the supercharger and lower intake? I bet you could gain more than twice as much than what is seen here.
On top of that (no pun) the more boost you run, the more you gain (rather the less power you lose due to heat) since heat is the main problem of our trucks. I bet we could raise the usable boost on stock blowers to about 18psi with strategically placed spacers.
#30