Intake piping volume calculator? Proper length and volume intake
#1
Intake piping volume calculator? Proper length and volume intake
I'm looking at making my own intake.
Hoping to not lose torque or horsepower anywhere, but maximize horsepower at 7000rpm
I've been trying to find calculators online for estimating volumes for best torque and horsepower gains. Only program I've found is called pipemax, but its a header design program. Any leads on this?
I plan on using a long silicone coupler in the front so I can easily slide a pipe back and forth to adjust length. Final intake will be welded aluminum, with a good cone filter and inner velocity stack. Might also have a chamber or two so I dont drop torque. This is mainly why I'd like some help with the calculations.
I'm not interested in wasting 240 dollars on a k&n intake that was probably not optimized for air density, 64mm throttle body, or flat top. or anything other than a generic product to make money.
Hoping to not lose torque or horsepower anywhere, but maximize horsepower at 7000rpm
I've been trying to find calculators online for estimating volumes for best torque and horsepower gains. Only program I've found is called pipemax, but its a header design program. Any leads on this?
I plan on using a long silicone coupler in the front so I can easily slide a pipe back and forth to adjust length. Final intake will be welded aluminum, with a good cone filter and inner velocity stack. Might also have a chamber or two so I dont drop torque. This is mainly why I'd like some help with the calculations.
I'm not interested in wasting 240 dollars on a k&n intake that was probably not optimized for air density, 64mm throttle body, or flat top. or anything other than a generic product to make money.
#5
^legend.
But doesn't every engine have different harmonics? With my N/A subaru we gained 17whp with a very specific length (also 5 hours on the dyno), and literally 1/2" on either side of that didn't make more than a cone filter on the throttle body.
Wouldn't I still have significant gains left on the table if I didn't tune the length myself?
But doesn't every engine have different harmonics? With my N/A subaru we gained 17whp with a very specific length (also 5 hours on the dyno), and literally 1/2" on either side of that didn't make more than a cone filter on the throttle body.
Wouldn't I still have significant gains left on the table if I didn't tune the length myself?
#7
Welp, now I'm back to wanting a calculator for intake volume.
The 21" (throttle body to diameter increase inside the filter) intake is a low volume intake, and will make me lose torque under4000rpm.
I'd like to have a box/chamber in my intake to boost torque under 4000, or keep it same as stock. There is ample room for a pretty large chamber, I just need to know what volume to add. I can't just fill up the oem resonator chamber with water and use that volume in my intake, that volume was used specifically with the entire oem intake, and isn't relevant to my 21" length 2.5od 3.75clr tube intake.
I also will need to fiddle with intake length, which is specific to every car. (I checked) NB2 optimum lengths are between 19-22 inches I'll have to allow adjustments for, and do virtual dyno runs to see the differences.
The 21" (throttle body to diameter increase inside the filter) intake is a low volume intake, and will make me lose torque under4000rpm.
I'd like to have a box/chamber in my intake to boost torque under 4000, or keep it same as stock. There is ample room for a pretty large chamber, I just need to know what volume to add. I can't just fill up the oem resonator chamber with water and use that volume in my intake, that volume was used specifically with the entire oem intake, and isn't relevant to my 21" length 2.5od 3.75clr tube intake.
I also will need to fiddle with intake length, which is specific to every car. (I checked) NB2 optimum lengths are between 19-22 inches I'll have to allow adjustments for, and do virtual dyno runs to see the differences.
#10
Oh and he's a friend of mine, that I've helped with numerous things, so he knows I'm not hazing him.
So unwad the panties and take a hike.
#12
^lol yikes!
I have been annoying 949racing today, and have discovered that just moving the intake pick up point away (filter) from the exhaust side will negate the torque drop of not having the resonating chamber.
That's a good point about the vd not being accurate enough.
What I have found with 18psi's tough love, is.... at first I'm like, why is he not being helpful.... then i'm like... oh he's right. lol
I'll still post my discoveries and pictures of the intake in my build thread.
I have been annoying 949racing today, and have discovered that just moving the intake pick up point away (filter) from the exhaust side will negate the torque drop of not having the resonating chamber.
That's a good point about the vd not being accurate enough.
What I have found with 18psi's tough love, is.... at first I'm like, why is he not being helpful.... then i'm like... oh he's right. lol
I'll still post my discoveries and pictures of the intake in my build thread.
#13
So his approach is pointless because the testing method is flawed? Ok
if the measuring device can only be accurate up to about 5hp, and you're looking for that last 2hp, it's a waste of time.
But I know you're bored and have tons of time on your hands, so know yourself out
it will actually be pretty easy and cheap to do all this, and you'll probably learn a thing or two
#16
^ that's in a few years. Unless you have a TSE 6258 kit plus 350hp intercooler kit, full exhaust and ID1000 injectors. I will also take mk turbo kit plus intercooler kit and ID1000. I have a 2001 Miata, with a/c.
The only thing keeping me sane is doing little projects on my car to waste time more productively.
The only thing keeping me sane is doing little projects on my car to waste time more productively.
#20
If you already have a MS3 you're on your way to being ready. While I was N/A I slapped a 90* silicone ell off the throttle body, just enough short section to get an AIT sensor in and put a cone filter on the end and honestly couldn't feel a difference over a stock setup. AIT's did drop considerably.