Took off midpipe and reinstalled resonator = better acceleration!!??
#1
Took off midpipe and reinstalled resonator = better acceleration!!??
After reading a couple posts from random members (can't remember thier names) saying that the midpipe made them slower, I decided to experiment. I've been running a midpipe for well over 3 years now so I definately know what it feels and sounds like. I reinstalled my stock resonator and went for a long drive. First thing is notice is better low rpm response. When I went WOT, my hacked airbox isn't as deep or loud. That kind of sucks because I like the sound plus I like hearing my MEVI open. It use to be like "get the F out my way" kind of a sound and now it's just a sporty snort kind of sound. I did a handful of WOT runs and I noticed the car definately doesn't feel any slower and I dare say it's quicker and this is in 90 degree weather. I punched it in 2nd at 4500rpms and my neck snapped back as if it were a cool 40 degrees out. Punching it on the highway was also impressive.
Just thought I'd share. You might want to try it out just for fun and see if you agree or disagree.
Dave
Just thought I'd share. You might want to try it out just for fun and see if you agree or disagree.
Dave
#3
You know, this is the first time I actually looked at your cardomain site and your car looks pretty nice. I thought you had a 97-99 this whole time
Well anyway, I have the K&n filter w/o velocity stack, how would it compare if I were to throw on the JWT filter which has a velocity stack to my system?
Well anyway, I have the K&n filter w/o velocity stack, how would it compare if I were to throw on the JWT filter which has a velocity stack to my system?
#4
Re: Took off midpipe and reinstalled resonator = better acceleration!!??
Originally posted by Dave B
After reading a couple posts from random members (can't remember thier names) saying that the midpipe made them slower, I decided to experiment. I've been running a midpipe for well over 3 years now so I definately know what it feels and sounds like. I reinstalled my stock resonator and went for a long drive. First thing is notice is better low rpm response. When I went WOT, my hacked airbox isn't as deep or loud. That kind of sucks because I like the sound plus I like hearing my MEVI open. It use to be like "get the F out my way" kind of a sound and now it's just a sporty snort kind of sound. I did a handful of WOT runs and I noticed the car definately doesn't feel any slower and I dare say it's quicker and this is in 90 degree weather. I punched it in 2nd at 4500rpms and my neck snapped back as if it were a cool 40 degrees out. Punching it on the highway was also impressive.
Just thought I'd share. You might want to try it out just for fun and see if you agree or disagree.
Dave
After reading a couple posts from random members (can't remember thier names) saying that the midpipe made them slower, I decided to experiment. I've been running a midpipe for well over 3 years now so I definately know what it feels and sounds like. I reinstalled my stock resonator and went for a long drive. First thing is notice is better low rpm response. When I went WOT, my hacked airbox isn't as deep or loud. That kind of sucks because I like the sound plus I like hearing my MEVI open. It use to be like "get the F out my way" kind of a sound and now it's just a sporty snort kind of sound. I did a handful of WOT runs and I noticed the car definately doesn't feel any slower and I dare say it's quicker and this is in 90 degree weather. I punched it in 2nd at 4500rpms and my neck snapped back as if it were a cool 40 degrees out. Punching it on the highway was also impressive.
Just thought I'd share. You might want to try it out just for fun and see if you agree or disagree.
Dave
I switched from the autozone pipe, back to PVC because the PVD opening is a full 3inches. I have had no problems with the PVC getting to hot and this is in hot Texas weather with a JWT filter.
The biggest restriction after an intake mod and before the throttle body is going to be the MAF sensor, I have not measured that yet, anyone have a minute (I am up at work)?
I have considered putting my resinator back on as I do not think it is restrictive. I have been trying to think of flow characteristics but really have no knowledge of them. The only thing I can think of is trying to suck through a straw as the advantges of a midpipe. It might smooth the airflow out into a more controlled flow. However with the resinator you have the inlet, a large open space and then a whole that leads to the throttle body. This I would think would not be restrictive but I wonder what the flow characteristics of somthing like this would be.
Does anyone have a clue as to why this resinator is shaped the way it is?
Any one?
#5
Re: Took off midpipe and reinstalled resonator = better acceleration!!??
so you removed your mid-pipe, now your intake is completely stock right?
what is hacked box?
what is hacked box?
Originally posted by Dave B
After reading a couple posts from random members (can't remember thier names) saying that the midpipe made them slower, I decided to experiment. I've been running a midpipe for well over 3 years now so I definately know what it feels and sounds like. I reinstalled my stock resonator and went for a long drive. First thing is notice is better low rpm response. When I went WOT, my hacked airbox isn't as deep or loud. That kind of sucks because I like the sound plus I like hearing my MEVI open. It use to be like "get the F out my way" kind of a sound and now it's just a sporty snort kind of sound. I did a handful of WOT runs and I noticed the car definately doesn't feel any slower and I dare say it's quicker and this is in 90 degree weather. I punched it in 2nd at 4500rpms and my neck snapped back as if it were a cool 40 degrees out. Punching it on the highway was also impressive.
Just thought I'd share. You might want to try it out just for fun and see if you agree or disagree.
Dave
After reading a couple posts from random members (can't remember thier names) saying that the midpipe made them slower, I decided to experiment. I've been running a midpipe for well over 3 years now so I definately know what it feels and sounds like. I reinstalled my stock resonator and went for a long drive. First thing is notice is better low rpm response. When I went WOT, my hacked airbox isn't as deep or loud. That kind of sucks because I like the sound plus I like hearing my MEVI open. It use to be like "get the F out my way" kind of a sound and now it's just a sporty snort kind of sound. I did a handful of WOT runs and I noticed the car definately doesn't feel any slower and I dare say it's quicker and this is in 90 degree weather. I punched it in 2nd at 4500rpms and my neck snapped back as if it were a cool 40 degrees out. Punching it on the highway was also impressive.
Just thought I'd share. You might want to try it out just for fun and see if you agree or disagree.
Dave
#6
Re: Re: Took off midpipe and reinstalled resonator = better acceleration!!??
Originally posted by joew
so you removed your mid-pipe, now your intake is completely stock right?
what is hacked box?
so you removed your mid-pipe, now your intake is completely stock right?
what is hacked box?
The hacked air box, cut a hole in the bottom so the air still travels through the filter before entering the throttle body, I would also reccomend that you position the hole towards the fender so that it is not directed towards warm engine air.
#7
Originally posted by gtr_rider
You know, this is the first time I actually looked at your cardomain site and your car looks pretty nice. I thought you had a 97-99 this whole time
Well anyway, I have the K&n filter w/o velocity stack, how would it compare if I were to throw on the JWT filter which has a velocity stack to my system?
You know, this is the first time I actually looked at your cardomain site and your car looks pretty nice. I thought you had a 97-99 this whole time
Well anyway, I have the K&n filter w/o velocity stack, how would it compare if I were to throw on the JWT filter which has a velocity stack to my system?
I'm not running a velocity stack on my hacked airbox and I've been able to get nearly 100mph in the 1/4 mile which is right in line with what Neal and Requim6 are getting with their MEVI/JWT ECU/hybrid intake Maximas. Therefore I doubt I'm being slowed down by not running a velocity stack.
Dave
#8
hacking your airbox is when you take off that big dust pan looking part of the intake piping that is suppose to draw in some cold air from the front of the hood but th opening is so small is really restrictive. your left with abuut a 3.5x3 inch opening just on the lower air box. u get a a faint stock sports car growl on acceleration and when combined with a k&n drop in you get decent gains. but i dont think as much as an hai. i ran with hacked air box and k&n drop in for 4 months. my bomz hai feels stronger.
#9
Originally posted by Max Noob
hacking your airbox is when you take off that big dust pan looking part of the intake piping that is suppose to draw in some cold air from the front of the hood but th opening is so small is really restrictive. your left with abuut a 3.5x3 inch opening just on the lower air box. u get a a faint stock sports car growl on acceleration and when combined with a k&n drop in you get decent gains. but i dont think as much as an hai. i ran with hacked air box and k&n drop in for 4 months. my bomz hai feels stronger.
hacking your airbox is when you take off that big dust pan looking part of the intake piping that is suppose to draw in some cold air from the front of the hood but th opening is so small is really restrictive. your left with abuut a 3.5x3 inch opening just on the lower air box. u get a a faint stock sports car growl on acceleration and when combined with a k&n drop in you get decent gains. but i dont think as much as an hai. i ran with hacked air box and k&n drop in for 4 months. my bomz hai feels stronger.
Removing your snorkel does nothing for restriction and only gives you an opening that is pointed towards your engine, thus drawing in hot air.
#10
Originally posted by gtr_rider
You know, this is the first time I actually looked at your cardomain site and your car looks pretty nice. I thought you had a 97-99 this whole time
Well anyway, I have the K&n filter w/o velocity stack, how would it compare if I were to throw on the JWT filter which has a velocity stack to my system?
You know, this is the first time I actually looked at your cardomain site and your car looks pretty nice. I thought you had a 97-99 this whole time
Well anyway, I have the K&n filter w/o velocity stack, how would it compare if I were to throw on the JWT filter which has a velocity stack to my system?
I'm not running a velocity stack on my hacked airbox and I've been able to get nearly 100mph in the 1/4 mile which is right in line with what Neal and Requim6 are getting with their MEVI/JWT ECU/hybrid intake Maximas. Therefore I doubt I'm being slowed down by not running a velocity stack.
Dave
#11
I remember on Frankens web sight it once said that their intakes out dynoed Stillens by somthing like 2-3 hp "as seen on maxima.org." The link was only to the .org's home page, does anyone know where this is?
I just got done watching a video of the Stillen 350z. They have a walk through of the factory and the marketing director says that many times new intakes have been developed that make gains on the dyno, but he said unless the gains are significant according to Stillen himself they will not be sold. He further adds that the intake from the factory has been poored over by engineers and R&D for a long time before it is released. He states that a ton of R&D is needed to promote significant gains from this design and that is what they do at Stillen (100+ sometimes.)
I am now wondering whether they ever thought of putting a midpipe on along with their intake. To my knowledge they are not selling midpipes. I am pretty sure that they would have thought of this and tried it, just as I am sure that no one ever put any R&D time into the making of half of their CAI intake to be used alone.
I think I have decided to put the resinator back on unless someone can show me the dyno that franken claims.
I just got done watching a video of the Stillen 350z. They have a walk through of the factory and the marketing director says that many times new intakes have been developed that make gains on the dyno, but he said unless the gains are significant according to Stillen himself they will not be sold. He further adds that the intake from the factory has been poored over by engineers and R&D for a long time before it is released. He states that a ton of R&D is needed to promote significant gains from this design and that is what they do at Stillen (100+ sometimes.)
I am now wondering whether they ever thought of putting a midpipe on along with their intake. To my knowledge they are not selling midpipes. I am pretty sure that they would have thought of this and tried it, just as I am sure that no one ever put any R&D time into the making of half of their CAI intake to be used alone.
I think I have decided to put the resinator back on unless someone can show me the dyno that franken claims.
#13
Originally posted by joew
thanks for the pic Street Reeper.
how about using heat shield? won't that reduces some hot air?
thanks for the pic Street Reeper.
how about using heat shield? won't that reduces some hot air?
If you are planning on doing this mod I would buy a back up lower air box, I got mine from CBR2, you could throw an add in the parts wanted section.
#15
Re: Took off midpipe and reinstalled resonator = better acceleration!!??
Originally posted by Dave B
After reading a couple posts from random members (can't remember thier names) saying that the midpipe made them slower, I decided to experiment. I've been running a midpipe for well over 3 years now so I definately know what it feels and sounds like. I reinstalled my stock resonator and went for a long drive. First thing is notice is better low rpm response. When I went WOT, my hacked airbox isn't as deep or loud. That kind of sucks because I like the sound plus I like hearing my MEVI open. It use to be like "get the F out my way" kind of a sound and now it's just a sporty snort kind of sound. I did a handful of WOT runs and I noticed the car definately doesn't feel any slower and I dare say it's quicker and this is in 90 degree weather. I punched it in 2nd at 4500rpms and my neck snapped back as if it were a cool 40 degrees out. Punching it on the highway was also impressive.
Just thought I'd share. You might want to try it out just for fun and see if you agree or disagree.
Dave
After reading a couple posts from random members (can't remember thier names) saying that the midpipe made them slower, I decided to experiment. I've been running a midpipe for well over 3 years now so I definately know what it feels and sounds like. I reinstalled my stock resonator and went for a long drive. First thing is notice is better low rpm response. When I went WOT, my hacked airbox isn't as deep or loud. That kind of sucks because I like the sound plus I like hearing my MEVI open. It use to be like "get the F out my way" kind of a sound and now it's just a sporty snort kind of sound. I did a handful of WOT runs and I noticed the car definately doesn't feel any slower and I dare say it's quicker and this is in 90 degree weather. I punched it in 2nd at 4500rpms and my neck snapped back as if it were a cool 40 degrees out. Punching it on the highway was also impressive.
Just thought I'd share. You might want to try it out just for fun and see if you agree or disagree.
Dave
#17
I just did the same, even putting back in the resonator below the battery. My car (97 auto) seemed to lack low end power with the resonators removed. Here in hot as heck Louisiana, my car has regained the low end power it had before the intake mods (I don't care about increased sound from an intake).
Dave B, as I've noticed the same results as you, I don't think it is just our minds.
Dave
Dave B, as I've noticed the same results as you, I don't think it is just our minds.
Dave
#21
It seems very hard to tell whether a midpipe actually works now or not. It's raised a question on my own setup also (midpipe/JWT) but I don't think I'm going to change it. I'm pretty sure if these two setups were dynoed, there would be no difference, also taking into account the 2-3 hp variance on the dyno runs. Both the midpipe and resonator provide a simple path to the TB, and I don't understand how it can be so different that the resonator performs better. Can anyone back up these claims with physical explanations or actual dyno runs?
#22
It's more complex than just a simple path to the throttle body. I remember reading in some thread here or other that the stock resonator actually stores air and partially pressurizes the intake manifold. A sort of air "buffer." With this eliminated, perhaps that's why low-RPM acceleration and throttle response is somewhat diminished with a mid-pipe. If you search, you might be able to find it.
#24
Originally posted by IwANnAMaX96
It's more complex than just a simple path to the throttle body. I remember reading in some thread here or other that the stock resonator actually stores air and partially pressurizes the intake manifold. A sort of air "buffer." With this eliminated, perhaps that's why low-RPM acceleration and throttle response is somewhat diminished with a mid-pipe. If you search, you might be able to find it.
It's more complex than just a simple path to the throttle body. I remember reading in some thread here or other that the stock resonator actually stores air and partially pressurizes the intake manifold. A sort of air "buffer." With this eliminated, perhaps that's why low-RPM acceleration and throttle response is somewhat diminished with a mid-pipe. If you search, you might be able to find it.
#25
Dave B
Originally posted by Dave B
Going on 3 days now with the stock resonator. Temps have been in the lower 90s and my car has never pulled so hard.
Dave
Going on 3 days now with the stock resonator. Temps have been in the lower 90s and my car has never pulled so hard.
Dave
#27
Originally posted by joew
Will this lose the effect or the HP on the Y-pipe?
Will this lose the effect or the HP on the Y-pipe?
yeah how will this work, cuz i thought more mods on mods help even more?
and for my 2nd question is im confused you guys keep saying resonator...your only talking about the intake right? not the one on the exhuast?
#28
Oh yeah and 1 more thing, with the aftermarket intakes, I can understand how the lose some low end (specially the warm air) but isent that the whole point of mods...is to lose some power on a surten part of your powerband, but gain a lot somewhere els?
#29
Originally posted by TurDz
It seems very hard to tell whether a midpipe actually works now or not. It's raised a question on my own setup also (midpipe/JWT) but I don't think I'm going to change it. I'm pretty sure if these two setups were dynoed, there would be no difference, also taking into account the 2-3 hp variance on the dyno runs. Both the midpipe and resonator provide a simple path to the TB, and I don't understand how it can be so different that the resonator performs better. Can anyone back up these claims with physical explanations or actual dyno runs?
It seems very hard to tell whether a midpipe actually works now or not. It's raised a question on my own setup also (midpipe/JWT) but I don't think I'm going to change it. I'm pretty sure if these two setups were dynoed, there would be no difference, also taking into account the 2-3 hp variance on the dyno runs. Both the midpipe and resonator provide a simple path to the TB, and I don't understand how it can be so different that the resonator performs better. Can anyone back up these claims with physical explanations or actual dyno runs?
I'd love to go to the track, but it's just too freaking hot (90-100) right now and since I haven't run my current setup (MEVI/JWT ECU) in temps this hot yet, I don't have any reliable 1/4 numbers to compare to. I've ran a handful of 14.4/14.5 in 80 degree weather so when temps dip back into the lower 80s/70s, I'll get back to the track.
Dave
#31
This is slammed95 posting:
This is what I've been saying ever since I tried the Frankencar mid-pipe a few months ago.
I tested it at the track against the resonator box, both 1/8 and 1/4mile, and it made me slower. I ran .1-.2 sec faster with stock box. Low end and mid range sucks with the mid-pipe. Top end feels the same.
The mid-pipe sounds good, but loses power.
I tested it at the track against the resonator box, both 1/8 and 1/4mile, and it made me slower. I ran .1-.2 sec faster with stock box. Low end and mid range sucks with the mid-pipe. Top end feels the same.
The mid-pipe sounds good, but loses power.
#32
I have a g-tech and can hit constant low 6 0-60 and 15 sec or less 1/4 mile times. I am in GA now and it is about as hot and humid as it gets.
I have been a bit hessident to get the midpipe. And I dont think at this point i will after reading this thread. I just put in the G-force ecu and have noticed the car changed dramatically. I think the first cool day I get I will put my straight pipe (straight cat) back on and run it.
I have been a bit hessident to get the midpipe. And I dont think at this point i will after reading this thread. I just put in the G-force ecu and have noticed the car changed dramatically. I think the first cool day I get I will put my straight pipe (straight cat) back on and run it.
#33
I like my frankencar !!!!
the car lost some of the bottom end - but the midrange is great and that's what i use the most , I'm using the stock snorkle with custom elbow to get some fresh air into K&N filter (in theory )
the growl of intake coupled with Y-pipe makes other drivers freak -out when i pass them
Nick
the growl of intake coupled with Y-pipe makes other drivers freak -out when i pass them
Nick
#34
Re: I like my frankencar !!!!
Originally posted by nick
the car lost some of the bottom end - but the midrange is great and that's what i use the most , I'm using the stock snorkle with custom elbow to get some fresh air into K&N filter (in theory )
the growl of intake coupled with Y-pipe makes other drivers freak -out when i pass them
Nick
the car lost some of the bottom end - but the midrange is great and that's what i use the most , I'm using the stock snorkle with custom elbow to get some fresh air into K&N filter (in theory )
the growl of intake coupled with Y-pipe makes other drivers freak -out when i pass them
Nick
Now if you still have your stock intake, or anywone els that had it plus a mid pipe, and wouldent mind running to a local track to get some numbers to end this once and for all would be awsome
If i get the time, and some time off work...i might go to a local 1/8 track and try with both in the same night... but im sure sombody will beat me to that due to the fact i work like 55 hours a week
#36
Originally posted by Nismo
sombody should design a midpipe with a big bubble in the middle to act as an air resovoir like how the stock one is-only alot smoother. Ive seen CF versions of these for other imports before.
sombody should design a midpipe with a big bubble in the middle to act as an air resovoir like how the stock one is-only alot smoother. Ive seen CF versions of these for other imports before.
#37
Mods are making me slower?
Has anyone with a hole for a CAI tried running a pipe from the hole next to the battery into the stock airbox (before the filter) for a real oogile stock CAI?
The new G-tech can read RPMs and supposedly can print out dyno charts based on acceleration. The numbers would also be on the road so it could end the hood closed/open debate too. I would love to get one and spend some time trying out every intake to get real numbers, but I have other things to spend my money on now
Has anyone with a hole for a CAI tried running a pipe from the hole next to the battery into the stock airbox (before the filter) for a real oogile stock CAI?
The new G-tech can read RPMs and supposedly can print out dyno charts based on acceleration. The numbers would also be on the road so it could end the hood closed/open debate too. I would love to get one and spend some time trying out every intake to get real numbers, but I have other things to spend my money on now
#38
i am not to sure about this.... i have a 96 GXE and my co worker has a 99GLE and for the longest time i had a DIY mid pipe and he had the stock resinator and we both have everything else the same and when we raced we were dead even... both autos.... then we built him a DIY midpipe becuase he liked the sound... and we are still dead even no major pull one over the other...the only thing different is his is heavier being a GLE with all the options (leather, ABS, traction control) an mine is a basic GXE with higher miles
So i dont understand were the difference is? We did not see it in a race. it did not make any difference from dead stop or a rolling start.
So i dont understand were the difference is? We did not see it in a race. it did not make any difference from dead stop or a rolling start.
#39
Originally posted by Geophrum
i am not to sure about this.... i have a 96 GXE and my co worker has a 99GLE and for the longest time i had a DIY mid pipe and he had the stock resinator and we both have everything else the same and when we raced we were dead even... both autos.... then we built him a DIY midpipe becuase he liked the sound... and we are still dead even no major pull one over the other...the only thing different is his is heavier being a GLE with all the options (leather, ABS, traction control) an mine is a basic GXE with higher miles
So i dont understand were the difference is? We did not see it in a race. it did not make any difference from dead stop or a rolling start.
i am not to sure about this.... i have a 96 GXE and my co worker has a 99GLE and for the longest time i had a DIY mid pipe and he had the stock resinator and we both have everything else the same and when we raced we were dead even... both autos.... then we built him a DIY midpipe becuase he liked the sound... and we are still dead even no major pull one over the other...the only thing different is his is heavier being a GLE with all the options (leather, ABS, traction control) an mine is a basic GXE with higher miles
So i dont understand were the difference is? We did not see it in a race. it did not make any difference from dead stop or a rolling start.