Home made Boost-a-pipe

[NERD]

So Among my other projects, I'm making a boost a pipe. I'm using a 3.5" 90* chrome pipe for the main inlet at the s/c and a 3.25"id PVC pipe to go to the fender. My question is, Has anyone here ever made their own BAP? Do they really add Boost or am I waisting my time. If they do, whats the average boost they add?

 

[justinschmidt1]

mmm....

the anderson boost pipes are supposed to add like 1-2 PSI...

Should work :dunno:

 

[jEEd]

yo mike whats up,

if you're talking about "Power Pipes" which sounds like what you're talking / planning on making...
heres a dynosheet of a ProCharger P1SC on a 96-04 GT before/after adding a powerpipe, so theoretically it can add anywhere from 1-3psi depending on the velocity/flow/volume of the pipe you make.

red(w/o pipe): 10psi making 396/384
blue(w/ pipe):12.5psi making 411/405

 

[NERD]

WOW, Hey Maj, miss you buddy. You do know that brad is back on the forums and it seems no one cares... You should come back.

 

[justinschmidt1]

yo mike whats up,

if you're talking about "Power Pipes" which sounds like what you're talking / planning on making...
heres a dynosheet of a ProCharger P1SC on a 96-04 GT before/after adding a powerpipe, so theoretically it can add anywhere from 1-3psi depending on the velocity/flow/volume of the pipe you make.

red(w/o pipe): 10psi making 396/384
blue(w/ pipe):12.5psi making 411/405

wow...why did 2.5 psi only get you 15 hp and 19 tq?

is that normal?

lol

 

[jEEd]

yo mike whats up,

if you're talking about "Power Pipes" which sounds like what you're talking / planning on making...
heres a dynosheet of a ProCharger P1SC on a 96-04 GT before/after adding a powerpipe, so theoretically it can add anywhere from 1-3psi depending on the velocity/flow/volume of the pipe you make.

red(w/o pipe): 10psi making 396/384
blue(w/ pipe):12.5psi making 411/405

wow...why did 2.5 psi only get you 15 hp and 19 tq?

is that normal?

lol

shoot i dont know how to explain that one to you bud but thats what Anderson Power Pipes claim, that adding their pwr pipes add 1-3psi of boost

 

[jEEd]

WOW, Hey Maj, miss you buddy. You do know that brad is back on the forums and it seems no one cares... You should come back.

i totally would but i just want my old name back... and the fact that im ipbanned makes me not wanna hassle going thru proxies to get onto a forum that apparently tells me im unbanned but not. did you ever get a chance to ask ROTM about / for me?

 

[justinschmidt1]

yo mike whats up,

if you're talking about "Power Pipes" which sounds like what you're talking / planning on making...
heres a dynosheet of a ProCharger P1SC on a 96-04 GT before/after adding a powerpipe, so theoretically it can add anywhere from 1-3psi depending on the velocity/flow/volume of the pipe you make.

red(w/o pipe): 10psi making 396/384
blue(w/ pipe):12.5psi making 411/405

wow...why did 2.5 psi only get you 15 hp and 19 tq?

is that normal?

lol

shoot i dont know how to explain that one to you bud but thats what Anderson Power Pipes claim, that adding their pwr pipes add 1-3psi of boost

lol...just kinda doesnt seem worth it to me...i mean, to go from 380 to like 400 hp at the wheels from say 9 psi to 12 psi...seems like a lot more risk of blowing the engine with that extra 3 psi yet not enough hp gain to even justify doing it.

I wonder if increasing blower speed to create more boost is better than adding a power pipe to increase boost?

 

[jEEd]

AFM POWER PIPESâ„¢ were developed because of the need for a supercharger intake pipe that would flow at a higher rate of CFM, with a larger volume of air, brought on by the demand that new Vortech, Procharger and Paxton have when making 10 lb of boost or more.

The AFM POWER PIPEâ„¢, with its all mandrel bent construction, is the highest flowing inlet pipe available for centrifugal superchargers. We also put the mass air in the inner fenderwell for a cooler intake charge.

Performance improvements with this innovative design have been fantastic! Muscle Mustangs & Fast Fords tested in their November '97 issue on two different cars. The first (minor modifications) went from 10 lb of boost to 14 lb of boost and dropped 2 tenths and gained 4 mph at the strip. The second (major modifications) went from 16 lb of boost to 19 lb of boost, gained 38 hp at the rear wheels, and dropped 23 hundredths and gained 1.5 mph at the strip.

------------------------------------------------------

for $250 gaining 15rwhp/19rwtq is better than most bolt on mods you can get on the market. just think of it as a "bolt-on" that becomes available when you put on a centrifugal sc on your car. you can tune your car w/o a pwrpipe on then slap it on and the tune will still be okay since its a non-calibrated intake pipe. it really does no harm to the car because in a sense, you're still only running 10psi on the sc but you're just taking in a larger quantity of air in a specified volume w/ cooler air that it's "like" turning up the boost for free.

honestly, its better than turning up the boost itself if you don't have a forged motor because 400rwhp wont break your car necessarily.

 

[Shocker98GT]

I wonder if increasing blower speed to create more boost is better than adding a power pipe to increase boost?

Not really, More heat discharge, supercharger itself is spinning faster thus more "wear and tear", more HP to drive due to the smaller belt, more chance of belt slip, etc.

Main reason that 2-3 psi doesn't add a ton more power/torque is because it gains as the boost curve gains, think of it like an efficiency increase. It's more of a percentage increase than an absolute psi increase. At 3500rpm or so, you're only going to gain just a bit b/c the supercharger itself is only making 3-4psi at that point to begin with.

 

[justinschmidt1]

I wonder if increasing blower speed to create more boost is better than adding a power pipe to increase boost?

Not really, More heat discharge, supercharger itself is spinning faster thus more "wear and tear", more HP to drive due to the smaller belt, more chance of belt slip, etc.

Main reason that 2-3 psi doesn't add a ton more power/torque is because it gains as the boost curve gains, think of it like an efficiency increase. It's more of a percentage increase than an absolute psi increase. At 3500rpm or so, you're only going to gain just a bit b/c the supercharger itself is only making 3-4psi at that point to begin with.

gotcha...basically freeing up a restiction and it will make a couple more psi at higher rpms...

so technically a smaller pulley would make more power than a boost pipe although it would be more wear and tear.

Personally I think I would rather run a smaller pulley and make more boost/ faster and make 12 psi peak rather than adding a power pipe that will make a couple more psi up top.



then again with a boost pipe it would make the blower feel more like a turbo with a extra burst of power up top

 

[Shocker98GT]

gotcha...basically freeing up a restiction and it will make a couple more psi at higher rpms...

so technically a smaller pulley would make more power than a boost pipe although it would be more wear and tear.

Personally I think I would rather run a smaller pulley and make more boost/ faster and make 12 psi peak rather than adding a power pipe that will make a couple more psi up top.



then again with a boost pipe it would make the blower feel more like a turbo with a extra burst of power up top...but is that really good for the engine?

A smaller pulley will no doubt net more power, but the most common thing on these cars is non-intercooled so efficiency is a requirement. That's the main reason Vortechs and Paxtons are the most popular, they're the more efficient centrifugals on the market. And because of non-intercooled kits, etc. it makes the kits cheaper as well. But any time you're on stock internals and especially when you aren't intercooled, you're better gaining power via efficiency than just turning up the wick and pulleying down. Boost pipes make the chargers more efficient without the bigger penalty to IAT like running more pulley would do. Plus, boost pipes pretty much prove that the inlet is in fact a restriction, so realistically more pulley it would be that much more of a restriction and that much more heat discharge.

 

[justinschmidt1]

gotcha...basically freeing up a restiction and it will make a couple more psi at higher rpms...

so technically a smaller pulley would make more power than a boost pipe although it would be more wear and tear.

Personally I think I would rather run a smaller pulley and make more boost/ faster and make 12 psi peak rather than adding a power pipe that will make a couple more psi up top.



then again with a boost pipe it would make the blower feel more like a turbo with a extra burst of power up top...but is that really good for the engine?

A smaller pulley will no doubt net more power, but the most common thing on these cars is non-intercooled so efficiency is a requirement. That's the main reason Vortechs and Paxtons are the most popular, they're the more efficient centrifugals on the market. And because of non-intercooled kits, etc. it makes the kits cheaper as well. But any time you're on stock internals and especially when you aren't intercooled, you're better gaining power via efficiency than just turning up the wick and pulleying down. Boost pipes make the chargers more efficient without the bigger penalty to IAT like running more pulley would do. Plus, boost pipes pretty much prove that the inlet is in fact a restriction, so realistically more pulley it would be that much more of a restriction and that much more heat discharge.

Thanks...I understand now..

So as far as my application, im going to be intercooled with a p600 procharger.

Do you think I would might as well run a smaller pulley since im intercooled?

Or would it be a good idea to get a boost pipe?

I mean, I would rather have more boost and more power earlier and make 12 psi peak rather than not make as much boost/power earlier and still make 12 psi up top if there is no ill effects with an intercooler....know what I mean?