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Old Jan 12, 2004 | 04:35 PM
  #41  
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daytona350z
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Default Re: Headers

Originally posted by mjedens
I stand corrected !! I should be able to leave this alone, but I've got to ask, " Did you add or change anything to your exhaust sytem when you added headers?" (ie. test pipes, exhaust)
not, not yet at least, i have test pipes sittin in my trunk and i am awaiting an acceptible exhaust. i plan to dyno "just headers" sometime this week though
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Old Jan 15, 2004 | 06:55 PM
  #42  
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just got them dyno-ed..heheh, i do not have crawfords tho, made a nice fat torque gain and a pretty acceptable hp gain.
conditions were just about identical to last dyno, but did not have the fan blowing on this run, probably woulda helped too..

anyways, once i get it my scanner i will post...but here are the #'s:
my base was 237.7hp and 230.9tq

run 3 was 249.2hp and 246.7tq

run 4 was negated cuz it was a mistake of 4th gear..(didnt print it out, but it was 248.6hp and 243.4tq)

run 5 was 249.3 and 249.4 tq

to me, made a nice difference, those are just peak #'s though...@4k rpm torque shot from 216 to ~241.
headers= for me

btw..i am running nismo headers without any other mods...
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Old Jan 15, 2004 | 07:02 PM
  #43  
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Z PHAT Z
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I have a b-4 and after dynoed for the crawford plenum. B-4 dyno combo is XERD headers, AEM Cai, Borla TD exhaust. After I added the Crawford plenum, I gain NONE! Yup Zero , 0 WHP. Till now I don't know what's went wrong . Do I get the $20 . I will re-dyno once Winter is over and hope for the best.

Patrick
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Old Jan 15, 2004 | 07:14 PM
  #44  
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double post
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Old Jan 15, 2004 | 09:48 PM
  #45  
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http://www.fanta.dk/showmovie.asp?mi...2-352FA13DC81B
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Old Jan 16, 2004 | 05:02 AM
  #46  
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We still have plenty of time. The plenum will be shipped on monday via UPS.
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Old Jan 16, 2004 | 05:17 AM
  #47  
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Originally posted by Z PHAT Z
I have a b-4 and after dynoed for the crawford plenum. B-4 dyno combo is XERD headers, AEM Cai, Borla TD exhaust. After I added the Crawford plenum, I gain NONE! Yup Zero , 0 WHP. Till now I don't know what's went wrong . Do I get the $20 . I will re-dyno once Winter is over and hope for the best.

Patrick
Do you have your a/f readings with the dynos? If so when you get them scanned could you post them or send them to me?
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Old Jan 16, 2004 | 06:06 AM
  #48  
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Originally posted by VandyZ
Do you have your a/f readings with the dynos? If so when you get them scanned could you post them or send them to me?
I'll post mine. Got it done last night with the crawfor plenum, headers and cats
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Old Jan 16, 2004 | 06:55 AM
  #49  
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Originally posted by VandyZ
Do you have your a/f readings with the dynos? If so when you get them scanned could you post them or send them to me?
The first 3 pulls that were done don't have the a/f reading. that's why I will redyno at another dyno location that has the a/f reading. The tech that done those pulls said that my car running lean at WOT. He pointed it out on the graph where the line were not smooth and has zig zags( spike up and down ).
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