I am sure with the 2 dynos everyone was down on the headers so I had a chance to take mine to the track. My car is a 02 auto. All runs I am posting are run on my 18 inch mille miglia evo's, spare and jack removed, 23psi in front...car weighs 3520lbs. with me in it.

Results

Mods-Stillen Headers, Intake, 2.5' catback to Dynomax Superturbo, Straight Pipe, Timing Advance and RVM UDP.
Temp-58
Run 1
60ft-2.202
330-6.064
1/8-9.253
mph-75.98
1000-12.032
1/4-14.38
mph-94.48

Run 2
60ft-2.194
330-6.062
1/8-9.249
mph-77.47
1000-12.013
1/4-14.37
mph-96.6

For Comparison

Best run with: Intake, Y-pipe, Gutted Precats, 2.5' catback to Dynomax Superturbo, Straight Pipe,Timing Advance and RVM UDP
Temp-51
60ft-2.152
330-6.072
1/8-9.267
mph-75.8
1000-12.044
1/4-14.51
mph-96.4
Other two runs were 14.58 and 14.62

Best run with: Intake, Y-pipe, 2.5' catback to Dynomax Superturbo, Straight Pipe,Timing Advance and RVM UDP.
Temp - 65
60ft-2.23
330-6.081
1/8-9.413
mph-74.9
1000-12.246
1/4-14.73
mph-94.18
Other two runs were 14.7XX

So these are my results. I am pretty happy although I wish my trap speeds were higher. I feel that the headers would give a stock/modded car roughly about a 4 tenths improvement and 2mph on the trap speeds. It will give a gain of about 2 tenths over gutting the precats. I think you modded 6spd guys can run 14.0 with these. On a little colder day with no 25mph crosswinds I think I can beat a 14.3.

 

Perhaps the headers do more real world improvements than trying to be a dyno queen.

 

Good numbers. How does it feel as far as everyday driving....any faster?

 

interesting.

will

 

Yes, it feels faster I actually feel it more in the low and midrange more than the high end. But it is definitely louder.

 

its strange that you got a better ET with the headers but you had a better 60' and similar MPH before the headers but with a worse ET. i would think that identical MPHs with a better 60' would result in a better ET. what do you think the reason for that is?

 

wow i stil think its a waste of 800dollars

 

Good for you. Don't buy them.

 

ET can be easily affected by quite a few different things. The best story teller here is the consistant increase in his 1/8th mile trap speed. So even though his number may not appear all that great on a dyno, his car actually went down the track faster which is far more important than making a good number sitting still.

 

I can't explain the reason for the differences in my ET's and MPH. All I know is the car consistently got down the track faster as SR2ODEN said...and thats all I wanted.

 

Wow! I think we all would like to see a dyno with known good running car. Would make an excellent comparasion.

 

Traction sucks on our cars. I know this for sure, I spin all through 1st in my auto with my 19's. I know these headers can get mid 13's with slicks on an auto. Now, as far as noise goes....oh welll.... we shall see..

 

kloogy, that's the biggest damn sig pic ever.. haha.

As per the relevance part of my post, I, too, cannot justify $800 on this mod. The ECU mod, however, I am growing to like, even though I still think the price could be lower. But maybe I will get it by my birthday, as long as the dyno and track results show promise.

 

How about both mods...you could be in 13's

 

I have my reasons for not ever getting the headers, even if the price was lower. For one, dealerships will easily spot them and null and void my warranty - something I do not want to happen, because the warranty isn't so bad on the powertrain, and is pretty average on the bumper to bumper coverage. Secondly, headers do, indeed, make the car MUCH louder, which is something I want to avoid (my exhaust setup currently is just about as loud as I am willing to go, maybe a bit louder). Also, the ECU change is pretty much dealer undetectable, provides almost the same WHP, changes more things than just adding WHP, and is cheaper to boot.

 

Yeah..but imagine both ....
I ran a 14.6 @94.4 ..practically stock......so im kind of shady about whats next....

 

Heh, yeah, I know.. and NOS and...you get the idea. If and when there is a Turbo available (re: past the R&D satge and on some 5th gens), I will have to start putting money away so that when my warranty runs out and if I still have the car (hopefully), I can slap that bish on there. I have seriously been smitten by the mod bug as of late, and I need to slow down a bit.. hell, it was like a month ago that I was telling my friends how I wouldn't drop my car until the end of this year, and now I have everything coming in the mail by the middle of next week.

 

Im almost about to hit 50k miles.... so I could care less about the crappy Nissan warranty !

 

Wow, already? Well then you have nothing to worry about. Call SSR

Maybe we should un-hijack this thread sometime?

 

No thx....

 

Imagine it, man. You could be the first 5th gen with 300+WHP.. think of the possibilities. I am salivating as I type this.. a turbo or SC excites me more than any other mods combined, haha.

 

Give it 2 weeks and should be able to give you all dyno results from my car. I ordered the Injen CAI and the Stillen headers a couple of days ago and they should arrive here on the 21st. I'll get them installed and immedietly.

 

Great Times Erik!!!

And those are with 18's If you put on some slicks you would be in 13's.

Can you make us a sound clip of what your car sounds like with them?

 

kinda like the WSP y pipe . Eric nice times....bring on the colder temps. Damn I'd love to see what my car would do with headers and ecu.

Did you let your car cool or were you hot lapping. I iced my manifold and gained almost 1 mph from doing that. Again nice times, from the looks of it you gained a good bit of low end

 

I see you finally got those headers you were talking about last time I saw you...

___________________________________________
°¨°º©[SuperCharged 2K1 5SPD Maxima GLE]©º°¨°
.::R.I.P. 7/26/03 - WRX STI/EVO VIII Coming Soon...::.
PMPN' 1994 Miata 5Spd - Turbo'd
F/S: Parting Out The Whole Car. Lots of Parts Still Up For Grabs!!!

 

I dont thin kI can get a soundclip anytime soon...sorry.

blu-your car would be a beast with these headers on there!!! I did not ice the manifold and my best time was actually when i was hotlapping. I came off the track and drove right back on line.

 

Nice times juice. I wish I made it down there with you.

 

try the ice thing for about 30 mins next time...might knock off a 98mph trap

 

As far as I understand it trap speed is a better representation of a cars power than an ET. The lower ET could have meant he got better or jsut got lucky. However if you look at the trap speed there isnt much of a difference which indicates to me that the headers arent doing much.

 

He's going to have to beat me to the punch...and my custom machined Pauter forged liteweight/weight matched connecting rods should be here next week (already have the 8.5:1 pistons)...

 

Just to let everyone know, I contacted Technosquare and they informed me that someone from the org is donating their 3.5 auto for testing. They would not give me an ETA on when it would be ready for market.

 

Great times - it seems that the headers dont give the high end pull that I was hoping for... going by your trap speeds. But then again, i'll take my power down low for daily drivin Hopefully these headers wont be a big scam, maybe like someone else said they'll have more driving affect than dyno affect

 

Are you kiddin'? An auto down to 14.3's on street tires is damn good-
maybe the AT is reason why his traps weren't higher- An ECU mod
will take care of that

Good times Juice!

 

i managed to trap at 95.7 or so w/just my UDP and intake... being mid way thru 3rd gear at the end of the 1/4 doesnt help the trap, but the headers i would think should give at least another 1 mph, probly 2, since they *should* help top end more than anything.

 

That's great. You should post this info in the ECU sticky.

 

I dont know why my traps havent improved that much...it could be the 18's and the fact that my car weights 3510lbs...but as i said I went faster and thats all that counts

 

Do these headers make the car sound any different? Do they give the exaust any more of a rumble?

 

The car def gets louder...and yes there is a rumble

 

Nice runs. I made a similar post about the HS headers on Altimas.net. In general, I think my car is pretty weak as far as 5spd Altimas go. Having said that, here's the link:

http://www.nissantalk.com/forum/show...hreadid=127067