HotShot Headers
Originally Posted by upstatemax
car is prob running rich because of the headers, hence the decrease in mpg...
There is one solid peice of evidence you need to get the car on a dyno and tune it.
There is one solid peice of evidence you need to get the car on a dyno and tune it.
Originally Posted by 03maxima1
Does anyone know how Does anyone know how to figure out if the MAF is bad.
http://forums.maxima.org/showthread....21#post1173121
http://forums.maxima.org/showthread.php?t=447467
Btw, I've been getting 16-19 mpg since the header install, even when driving "conservatively".
Mass_Media™
Joined: Dec 2003
Posts: 2,812
Originally Posted by Puppetmaster
By searching....
http://forums.maxima.org/showthread....21#post1173121
http://forums.maxima.org/showthread.php?t=447467
Btw, I've been getting 16-19 mpg since the header install, even when driving "conservatively".
http://forums.maxima.org/showthread....21#post1173121
http://forums.maxima.org/showthread.php?t=447467
Btw, I've been getting 16-19 mpg since the header install, even when driving "conservatively".
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Posts: n/a
Originally Posted by Hoooper
how much of that cost is a new trans? i think my trans is going bad and if i get a new one i wont have to pay for the trans and the work for replacing, just maybe a little extra over the normal price to have it done. how much not including the trans and work?
straight pipe does make a little difference, it did for me at least. i notice that i get no traction at all in first gear if im trying to race, before it was no problem except just a little bit. its not the most obvious difference, but when paying attention i can tell. going to the track monday, can report the difference.
straight pipe does make a little difference, it did for me at least. i notice that i get no traction at all in first gear if im trying to race, before it was no problem except just a little bit. its not the most obvious difference, but when paying attention i can tell. going to the track monday, can report the difference.
Originally Posted by Puppetmaster
Originally Posted by Puppetmaster
Btw, I've been getting 16-19 mpg since the header install, even when driving "conservatively".
Originally Posted by Puppetmaster
No, haven't had time to install my AFC yet... once that's done, a dyno will be close behind...
Originally Posted by boondoxmax
As I said before. Its just my opinion. And even 550 is to much. Just my .02. I am not flaming or shooting down anyone who has headers or wants headers. I am just stating my opinion not a fact.......
Originally Posted by n3985
www.ssautochrome.com has headers for $299
Originally Posted by 03maxima1
Don't you dyno and tune it the same time you install the AFC?
I installed mine but the dyno shop offered to install it for $75.00. The install is pretty easy if you're comfortable with electrical soldering.
It sounds like you are running rich with those milege numbers. I'm running Hotshot headers, PR CAI and a B-pipe. I'm getting in the mid 20s for milege. I haven't been driving too conservatively since I put them in either.
Originally Posted by n3985
He wanted a cheaper alternative.... 
That should not even be considered an alternative...
Who was it that put them on and quickly switched them out after the dyno?
Originally Posted by Derrick2k2SE
You can install it any time. It doesn't do anything till it's set up during the dyno tune.
I installed mine but the dyno shop offered to install it for $75.00. The install is pretty easy if you're comfortable with electrical soldering.
It sounds like you are running rich with those milege numbers. I'm running Hotshot headers, PR CAI and a B-pipe. I'm getting in the mid 20s for milege. I haven't been driving too conservatively since I put them in either.
I installed mine but the dyno shop offered to install it for $75.00. The install is pretty easy if you're comfortable with electrical soldering.
It sounds like you are running rich with those milege numbers. I'm running Hotshot headers, PR CAI and a B-pipe. I'm getting in the mid 20s for milege. I haven't been driving too conservatively since I put them in either.
Originally Posted by 03maxima1
Right, but don't you have the AFC installed and working? Does it even things out in terms of leaness and richness when you install the AFC?
What it does is let you manualy adjust the fuel mix up or down at different RPMs by a percent. If you're rich between 4000 and 5400 RPM the tuner will lean it out by a few percent. Same if you're lean.
It comes set up at 0 percent so it can be installed safely.
Originally Posted by Gapp
Does anyone know if you have to pull the motor to get to the back exhaust manifold?
No, if you remove the engine brace and front and rear mounts you can tilt the motor for more room. Or even pull the intake manifold, but you dont have to pull the motor.
Originally Posted by Derrick2k2SE
Yes, I have one in and working. Just installing it does nothing. It has to be set up manualy with the help of a dyno and AFR meter.
What it does is let you manualy adjust the fuel mix up or down at different RPMs by a percent. If you're rich between 4000 and 5400 RPM the tuner will lean it out by a few percent. Same if you're lean.
It comes set up at 0 percent so it can be installed safely.
What it does is let you manualy adjust the fuel mix up or down at different RPMs by a percent. If you're rich between 4000 and 5400 RPM the tuner will lean it out by a few percent. Same if you're lean.
It comes set up at 0 percent so it can be installed safely.
I have the Apexi S-AFC2. You can buy them new on eBay pretty reasonably. Just make sure you get a new one.
I had good gaines from dyno tuning with just intake and Y-pipe. Even tuned for that setup I was still rich with the headers. I think you will be pleased once you get the fuel mix straight.
I had good gaines from dyno tuning with just intake and Y-pipe. Even tuned for that setup I was still rich with the headers. I think you will be pleased once you get the fuel mix straight.
Originally Posted by Derrick2k2SE
I have the Apexi S-AFC2. You can buy them new on eBay pretty reasonably. Just make sure you get a new one.
I had good gaines from dyno tuning with just intake and Y-pipe. Even tuned for that setup I was still rich with the headers. I think you will be pleased once you get the fuel mix straight.
I had good gaines from dyno tuning with just intake and Y-pipe. Even tuned for that setup I was still rich with the headers. I think you will be pleased once you get the fuel mix straight.
Originally Posted by upstatemax
No, if you remove the engine brace and front and rear mounts you can tilt the motor for more room. Or even pull the intake manifold, but you dont have to pull the motor.
This wouldn't tweak any lines in tilting the motor would it?
Originally Posted by 03maxima1
I might do it in the future. I just got a new engine so why not if the money is there.
Also, I am surprised to see that headers can take away from low end torque. I had an injen intake on my 99 Max and didn't really feel a loss of low end toruqe, so it probably is not too significant there, and I imagine the same for a 3.5. Anyhow, although there are some power gains with the intake, headers, and catback, you probably won't feel it. You'll probably just get a sweeter sounding car more than anything.
Senior Member
Joined: Sep 2005
Posts: 1,113
From: NY
Quote:
Originally Posted by 03maxima1
Would a VB upgrade help this out?
Dont think so... Thats more for faster shifting while racing. I really dont see it helping in an off the line situation
Originally Posted by 03maxima1
Would a VB upgrade help this out?
Dont think so... Thats more for faster shifting while racing. I really dont see it helping in an off the line situation
I think it would harden your shifts, and make it feel like a manual.
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Posts: n/a
Originally Posted by spdfreak
If I recall correctly, Level 10 VB's claim a .4 second off the 1/4 mile!
I think it would harden your shifts, and make it feel like a manual.
I think it would harden your shifts, and make it feel like a manual.
V-AFC2 is better. 
NmexMax I got a video to host and I am having some problems with it, its a 3GPP2 file- that I took with my phone. Quality is alright, it shows the sound of the HS headers in the car durring a WOT 0-80 run... know how to convert it or wanna host it ? I PMed Puppetmaster but I don't think he was online since yesterday as I have yet to get any response.
NmexMax I got a video to host and I am having some problems with it, its a 3GPP2 file- that I took with my phone. Quality is alright, it shows the sound of the HS headers in the car durring a WOT 0-80 run... know how to convert it or wanna host it ? I PMed Puppetmaster but I don't think he was online since yesterday as I have yet to get any response.
Originally Posted by BlackBIRDVQ
V-AFC2 is better.
NmexMax I got a video to host and I am having some problems with it, its a 3GPP2 file- that I took with my phone. Quality is alright, it shows the sound of the HS headers in the car durring a WOT 0-80 run... know how to convert it or wanna host it ? I PMed Puppetmaster but I don't think he was online since yesterday as I have yet to get any response.
NmexMax I got a video to host and I am having some problems with it, its a 3GPP2 file- that I took with my phone. Quality is alright, it shows the sound of the HS headers in the car durring a WOT 0-80 run... know how to convert it or wanna host it ? I PMed Puppetmaster but I don't think he was online since yesterday as I have yet to get any response.
Originally Posted by Puppetmaster
Btw, I've been getting 16-19 mpg since the header install, even when driving "conservatively".
27 with an auto sounds fishy....
the 2k2-2k3 auto is rated at 20/26 city/highway respectively.....how are you getting higher than EPA ratings? you do know that EPA runs their tests in a labratory on a dyno...set at probably 55mph with no aerodynamics right?
the 2k2-2k3 auto is rated at 20/26 city/highway respectively.....how are you getting higher than EPA ratings? you do know that EPA runs their tests in a labratory on a dyno...set at probably 55mph with no aerodynamics right?