performance help
01-17-2006, 08:43 AM
#44
Originally Posted by upstatemax
And hell, if you put on a B-Pipe WITH an intake, you get like 65whp! 
This spring I'm gonna remove my TB and run open headers... 500 whp here I come.
01-17-2006, 08:51 AM
#47
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Originally Posted by Puppetmaster
This spring I'm gonna remove my TB and run open headers... 500 whp here I come.
500whp... Try more like 1100whp, Have you learned nothing from the in and out theory?
01-17-2006, 08:58 AM
#50
Originally Posted by upstatemax
500whp... Try more like 1100whp, Have you learned nothing from the in and out theory?
........
01-17-2006, 10:38 AM
#52
guys come on.. on topic please. Lets make this a somewhat productive thread instead of whoring it up.
I am surprised no one on this board talks more about the plenum in development for the 5.5 gens and the Altimas. This plenum is a modified version of the Kinetix 350z plenum which provides 15whp over stock and produced something like 58whp on a forced induction 350z. Its supposed to be released to the Altima board as a GD pretty soon for around 750. Or about the cams that have given a dyno proven 20 whp (with no low end loss, and all hp gains come before 7100rpm so its quite streetable) and are going for 530 shipped. These are mods that need to be talked about and no one seems to be saying anything. It kinda bothers me because people spend big $ for exhaust on their 5.5 gen when the 5.5 gen already has a pretty good flowing exhaust (not including headers). I believe sr20den is putting out like 270whp N/A and still has his stock exhaust.
I am surprised no one on this board talks more about the plenum in development for the 5.5 gens and the Altimas. This plenum is a modified version of the Kinetix 350z plenum which provides 15whp over stock and produced something like 58whp on a forced induction 350z. Its supposed to be released to the Altima board as a GD pretty soon for around 750. Or about the cams that have given a dyno proven 20 whp (with no low end loss, and all hp gains come before 7100rpm so its quite streetable) and are going for 530 shipped. These are mods that need to be talked about and no one seems to be saying anything. It kinda bothers me because people spend big $ for exhaust on their 5.5 gen when the 5.5 gen already has a pretty good flowing exhaust (not including headers). I believe sr20den is putting out like 270whp N/A and still has his stock exhaust.
01-17-2006, 10:46 AM
#53
Originally Posted by sciff5
guys come on.. on topic please. Lets make this a somewhat productive thread instead of whoring it up.
I am surprised no one on this board talks more about the plenum in development for the 5.5 gens and the Altimas. This plenum is a modified version of the Kinetix 350z plenum which provides 15whp over stock and produced something like 58whp on a forced induction 350z. Its supposed to be released to the Altima board as a GD pretty soon for around 750. Or about the cams that have given a dyno proven 20 whp (with no low end loss, and all hp gains come before 7100rpm so its quite streetable) and are going for 530 shipped. These are mods that need to be talked about and no one seems to be saying anything.
I am surprised no one on this board talks more about the plenum in development for the 5.5 gens and the Altimas. This plenum is a modified version of the Kinetix 350z plenum which provides 15whp over stock and produced something like 58whp on a forced induction 350z. Its supposed to be released to the Altima board as a GD pretty soon for around 750. Or about the cams that have given a dyno proven 20 whp (with no low end loss, and all hp gains come before 7100rpm so its quite streetable) and are going for 530 shipped. These are mods that need to be talked about and no one seems to be saying anything.
01-17-2006, 11:06 AM
#55
Originally Posted by NmexMAX
Do some more research, you should read other forums, most namely All Motor.
The plenum thread on nissanclub.com had close to 1000 responses, when someone came back to the maxima forum and told everyone about it, it got something like 30 posts.. there just didnt seem to be a whole lot of enthusiasm about it, and I dont know why. An aftermarket plenum will most likely produce more whp than headers and headers cost about the same.
01-17-2006, 11:10 AM
#56
Kinetix is dragging their as.s
I've been following closely and also am thinking of doing cams for tax season, but until I do that, or they get an independant dyno on the plenum.
I don't think they will gain that much with the plenum. The Z33 guys actually saw a power loss. Especially for the price they're asking
I've been following closely and also am thinking of doing cams for tax season, but until I do that, or they get an independant dyno on the plenum.
I don't think they will gain that much with the plenum. The Z33 guys actually saw a power loss. Especially for the price they're asking
01-17-2006, 11:19 AM
#57
Originally Posted by NmexMAX
Kinetix is dragging their as.s
I've been following closely and also am thinking of doing cams for tax season, but until I do that, or they get an independant dyno on the plenum.
I don't think they will gain that much with the plenum. The Z33 guys actually saw a power loss. Especially for the price they're asking
I've been following closely and also am thinking of doing cams for tax season, but until I do that, or they get an independant dyno on the plenum.
I don't think they will gain that much with the plenum. The Z33 guys actually saw a power loss. Especially for the price they're asking
What do you meen by doing cams for tax season?
And can you post some of those dynos with power loss? If you meen loss in the low end, I'm okay with that as long as there is good high end gain.
01-17-2006, 12:35 PM
#58
Originally Posted by sciff5
guys come on.. on topic please. Lets make this a somewhat productive thread instead of whoring it up.
Originally Posted by sciff5
I believe sr20den is putting out like 270whp N/A and still has his stock exhaust.
01-17-2006, 12:36 PM
#59
Originally Posted by sciff5
guys come on.. on topic please. Lets make this a somewhat productive thread instead of whoring it up.
I am surprised no one on this board talks more about the plenum in development for the 5.5 gens and the Altimas.
I am surprised no one on this board talks more about the plenum in development for the 5.5 gens and the Altimas.
01-17-2006, 12:40 PM
#61
Originally Posted by sciff5
This plenum is a modified version of the Kinetix 350z plenum which provides 15whp over stock and produced something like 58whp on a forced induction 350z.
01-17-2006, 04:06 PM
#62
Guest
Posts: n/a
Originally Posted by Puppetmaster
No dyno no care.
01-17-2006, 10:15 PM
#69
Originally Posted by Mass_Media
Why has no one mentioned straight pipes instead of cats. We all know that you can make 50+ hp with a straight pipe.
01-18-2006, 02:35 PM
#71
Originally Posted by vinny
puppetmaster, should i just forget about reflashing my own ecu then , i know a shop that can do it. need to send chip to cali though, i do not have a supercharger
You can reflash it if you want, just don't blame anyone here if it turns out to net no gains whatsoever.
01-18-2006, 03:30 PM
#75
Originally Posted by Mass_Media
Make MaD tYtE PoWeR y0!!!11one
I have yet to see one independent dyno result that shows any gains with an underdrive pulley....The theory is beleiveable, but it just doesn't help....
Underdrive pulleys are worthless....The only independent dyno testing I've ever seen showed a 1.5 HP gain and that was at the flywheel with the drive belt completely removed....If you ever read the magazines testing these they will show before/after results with under-drive pulleys and (add another mod here)...Most reputable magazines will add the under-drive pulleys and another mod or dyno tune it afterwards and put during their assembly process that xyz company claims a 15 HP gain by adding these.(They usually won't confirm nor deny if this is true, that's the advertisers job)..
I know the post was a joke, but I'm just clarifying that underdrive pulleys are worthless, the magazines know this but don't bring it up because they don't want to lose their advertisers, and unless someone can show me a before/after dyno with no other mods and in the same conditions with no dyno tuning you can't tell me differently. People think they feel faster afterwards, it's all crap.
Here's one article... I can't find the one I was referring to but this is simaliar
http://www.teamscr.com/pulleys.html
01-18-2006, 03:37 PM
#76
Originally Posted by 5thenmaxima
I have yet to see one independent dyno result that shows any gains with an underdrive pulley....
:searching for link:
But I still call it an anomaly since it was only one car.
01-18-2006, 03:45 PM
#77
Originally Posted by NmexMAX
An A33B showed a dyno of 8whp IIRC...
:searching for link:
But I still call it an anomaly since it was only one car.
:searching for link:
But I still call it an anomaly since it was only one car.
http://www.greghome.com/images/Maxim...UDP%20Dyno.jpg
And his baselines:
http://www.greghome.com/Greg%27s%20G...jetResults.htm
Interestingly enough, they picked the lowest baseline numbers to compare the UDP gains with... kinda makes me wonder now.
and by-pass the A/C.. 
01-18-2006, 04:04 PM
#80
"The car was dynoed at about 1 month old with 1360 miles on the odometer, at the request (and expense) of Unorthodox Racing in Deer Park New York."
I call B.S.
Plus if you look closely the two blue ones where done in april and the two red ones done in march...Different atmospheric pressure = unreliable dyno results.
I'm not saying im 100% certain underdrive pulleys don't work...The logic makes alot of sence...I've just never seen an independent dyno showing positive results and until I do I consider them worthless. Also the way they are constantly NEVER dynoed back to back without some other mods or tuning among magazines makes me suspecious.
I call B.S.
Plus if you look closely the two blue ones where done in april and the two red ones done in march...Different atmospheric pressure = unreliable dyno results.
I'm not saying im 100% certain underdrive pulleys don't work...The logic makes alot of sence...I've just never seen an independent dyno showing positive results and until I do I consider them worthless. Also the way they are constantly NEVER dynoed back to back without some other mods or tuning among magazines makes me suspecious.