I had headers on my car and they don't do much. Much like any n/a mod. That said, the oem extractors do look restrictive, especially when you see them in person. Still don't expect much out of headers
Did you have it tuned for the headers? ie: flash, etc.. to richen up the mixture?? Because you will net power from headers. I posted my gains in Daniels other thread about headers. Noticeable mid range improvement.
Headers got me 14whp and 13ft.lb of torque with stock cats, stock y pipe, arc tail section, intake. And 18 and 19 respectively after the ECU flash and tune + AAM y pipe and hfc.
So, I don't know, I guess that's not that much power.. but when you are still N/A it seems to be a bit better.
I agree with you about how much power you made tuning it how you did. I also picked up 25-30whp. True, it's not a lot.. But it depends on what you are comparing it to.With my n/a setup I dyno'd at 256.9 whp on a dynojet. I didn't do a baseline and this was with everything but the ecu flash. The car actually felt more sluggish after the flash, so I would guess the pre flash numbers to be better than the post flash.
No matter what way you slice it, I figured I got about a 25whp gain out of everything I had done, obviously not doing a baseline this is only an estimate. Who wants to put up that kind of time and money into 25whp, heck, even 50 whp? What an absolute waste.
The AFR before the flash was decently lean. TS supposedly riched up the the AFR and added some timing in up top. I had noticable tq loss down low, but the car did pull a bit harder above 5000 rpms. I never did another dyno, because it didn't seem worth it, and afterall, they're only numbers. I could care less if my car dyno'd at 200whp, if it pulled like I wanted/expected it to after the time and money I threw at it. It really was a disappoint IMO and a complete waste of my time. I lost little on the parts as I was able to sell those that didn't jive with my TT setup.I agree with you about how much power you made tuning it how you did. I also picked up 25-30whp. True, it's not a lot.. But it depends on what you are comparing it to.
I don't believe that has anything to do with headers not making power. N/A tuning won't make you a ton of power, sure. Esp. when you compare FI. BUT, 25-30whp bolted on WITHOUT touching the heads , is pretty **** respectable. Considering the state of tune from Nissan.
I actually did a baseline before and after to provide data to Strup. So just saying headers don't make power, isn't true. They do make power. But it's along the same scale as NA tuning the Z. Small gains. But gains none the less.
I don't get how the car felt more sluggish. Did you see the a/f ratio after the tune? Was it bad? I could notice the difference after tuning. It was MUCH more responsive. :dunno:
It may not be "worth" the money.. but that is all relative. Daniel paid like $200 for the headers, so if they make 10whp at best, that's a deal. You can spend money elsewhere and make more power if you go with any FI. But, there's nothing wrong with trying to tune and keep it NA. There is still untapped potential here. Japanese tuners are now doing 340ps (which is about = to our brake horsepower rating) That's a descent amount of power over stock without a supercharger or turbo. It's just different than what everybody is doing. Because everybody wants a turbo charger or supercharger... There are very few that stay NA and set the pace.
I see. . .**** yeah i did!
because as soon as you take it out and lie it on the ground.
spray bolts with wd40, wait 10 seconds and use a breaker bar to loosen the bolts. i used a crecent wrench and a hammer to get the o2 off it was easy. just at easy to put the new header on. do you know how much more time i would have wasted trying to loosen the bolts and remove the cats first. they both came out easy and went back in easy!
If I did it all over again and had no plans on FI, I would do the followign:
1.) crank pulley
2.) lightened clutch/flywheel
3.)3.9 final drive
4.) Exhaust, including test pipes - stictly for the sound
4.5.)maybe a plenum or spacer
No headers, no intake, no ecu flash