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NO GAINS!!!!!!

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Old Apr 21, 2002 | 01:04 PM
  #1  
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Default Re: NO GAINS!!!!!!

i dont know what to do, i am so confused, how can installing headers with offroads (MAC) slow me down, something has to be wrong
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Old Apr 21, 2002 | 01:15 PM
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Default Re: NO GAINS!!!!!!

go back to the track!!!!!! <img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" /> <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />
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Old Apr 21, 2002 | 01:18 PM
  #3  
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Default Re: NO GAINS!!!!!!

Fix that Banging!! My MAC's banged when I first installed them. You can loosed the Y-pipe and adjust them so they don't bang.

GregM
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Old Apr 21, 2002 | 01:28 PM
  #4  
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Default Re: NO GAINS!!!!!!

the banging could be causing knock retard!!! BAAAAAD!

did you do the flowmaster collector mod to your y-pipe???
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Old Apr 21, 2002 | 01:30 PM
  #5  
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Default Re: NO GAINS!!!!!!

Weather plays a part in ET to. Hotter the weather slower the time and other conditions. Work on 60't time===tires, suspension components, etc. <img border="0" title="" alt="[Roll Eyes]" src="images/icons/rolleyes.gif" />
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Old Apr 21, 2002 | 04:02 PM
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Default Re: NO GAINS!!!!!!

Your running rich on WOT.Very common on header install.You might be giving up 20-30hp because of this.Get a MAFT to lean the WOT a bit.
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Old Apr 21, 2002 | 04:22 PM
  #7  
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Default Re: NO GAINS!!!!!!

I had the same problem after my MAC install...you don't need to lose your head over it.
I lost 10 hp after the install...only to find that I was running horribly rich at WOT...about 35 rwhp worth.
After I installed and tuned with a MAFT, my mph improved from 105.5 to 110 in the 1/4 mile..even though my ETs are about the same. I am having trouble launching because I have no practice. There are alway 1000 people at the strip ruinin my night. I am now running 13.5s with 2.5 sec 60' times...so I feel your pain.
Get tuned and get back to the track...your times will be slower anyway with the hot weather.
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Old Apr 21, 2002 | 08:58 PM
  #8  
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Default Re: NO GAINS!!!!!!

well lets just say the track wasnt the problem, my buddy with an 2001 ss has slp cat back exhaust from the factory ran a 13.4 stock. then when we went to the track his mods that he added were a lid, k&n, MAF ends, and the asp pulley and he pulled off 13.1's consistantly (A4) and got his best time of a 12.988! with just that. so that isnt the problem. so i should get a MAF translator, how much will that help me??? how much is something like that??? i ported the maf ends myself. and What is the flowmaster collector mod????
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Old Apr 21, 2002 | 09:02 PM
  #9  
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Default Re: NO GAINS!!!!!!

also i have tried fixing the mac ypipe banging like 5 times we lowered it so much, almost tho the point where it was almost touching the ground. nothing helps it still hits hard on the floorboard!! can i wedge something up in there??? what could i use?? i am sick of this kid in the ss beating me! i think i should get 12's easy with all my current mods!
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Old Apr 21, 2002 | 09:12 PM
  #10  
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Default Re: NO GAINS!!!!!!

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by mccdubbbs:
<strong>well lets just say the track wasnt the problem, my buddy with an 2001 ss has slp cat back exhaust from the factory ran a 13.4 stock. then when we went to the track his mods that he added were a lid, k&n, MAF ends, and the asp pulley and he pulled off 13.1's consistantly (A4) and got his best time of a 12.988! with just that. so that isnt the problem. so i should get a MAF translator, how much will that help me??? how much is something like that??? i ported the maf ends myself. and What is the flowmaster collector mod????</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">What was his speed difference?That is what you calculate his HP gain from.
I've run 12.8-13.6 in the 1/4 in tha same day,but the speed was around 108 on each run.
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Old Apr 21, 2002 | 09:56 PM
  #11  
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Default Re: NO GAINS!!!!!!

Sounds drivers error to me....not your mods or the tracks fault. So...you didn't beat your time the first time you went out there after the new mods....its ok. Ya probably just had a bad night at the track. Happens to everybody.

Might wanna look into to some DRs...cause the more power you keep adding....the worse it will be achieving traction on street tires and you won't be getting any kind of great times.
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Old Apr 22, 2002 | 12:14 AM
  #12  
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Default NO GAINS!!!!!!

i just got mac headers with offroads, and a z06 clutch installed last weekend. i went to the track yesterday and my best time previously was 13.44, with borla and a lid. i went to the track and i couldnt beat that E/T!! what is wrong i thought i might have been able to break 12's maybe or low 13's!!! i am so mad!!! i need advice!!! my ypipe is banging also. i may have a leak in where the collector is i am not sure, how would i know is it supposed to make any noise under there at all?? do i have to get my engine tuned for the headers??? or can u just put them in and notice gains without doing anything else. my friend says i am running to rich, that may be a problem also. i am thinking i should get my car auto tapped. what could be the problem, and how will i find this problem out???
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Old Apr 22, 2002 | 12:19 AM
  #13  
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Default Re: NO GAINS!!!!!!

a little more info would be helpful on both track runs.....like your 60' your 1/8th ET and MPH same with yer 1/4 ET and MPH's....with that we could prolly help you better understand!
Thanks
Jay
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Old Apr 22, 2002 | 12:36 AM
  #14  
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Default Re: NO GAINS!!!!!!

what were your trap speeds like ?

trap speeds are more indicative of how much if any power you've gained.
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Old Apr 22, 2002 | 12:45 AM
  #15  
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Default Re: NO GAINS!!!!!!

my trap speeds dropped and everything else dropped , yet i pulled off my best 60 foot time, but i bounced off the rev limiter in first gear so i ran a 13.9 the 60' was a 2.099
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Old Apr 22, 2002 | 12:46 AM
  #16  
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Default Re: NO GAINS!!!!!!

it was as if i didnt do anything else to my car
it maybe needs to be autotapped
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Old Apr 22, 2002 | 12:57 AM
  #17  
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Default Re: NO GAINS!!!!!!

post what yer time slips read anyway im just curious......but dont let ONE track trip be your judge go again and see if it happens again maybe even try a different track....there are a TON of factors when dragracing...
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Old Apr 22, 2002 | 02:46 PM
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Default Re: NO GAINS!!!!!!

Mcdubb, did you do plugs and wires with the headers?
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Old Apr 22, 2002 | 04:25 PM
  #19  
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Default Re: NO GAINS!!!!!!

I installed Macs an orp on my oo m6. I picked up an honest 2 1/2 mph. No tuning should be required IMO. The drivers side pipe was banging , adj. it and that was the end of that problem. As others have stated, look at mph not ET. The banging may be giving you KR. See if you can make some A Tap passes. Dont sweat it youll get it figured out.

Paul
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Old Apr 22, 2002 | 10:33 PM
  #20  
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Default Re: NO GAINS!!!!!!

Here is some dyno #'s I got before and after FLP's.
Before-310hp/320tq A/F 12-1
After-320hp/340tq A/F 10.5-1 <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />
After MAFT-340hp/350tq 12.8-1 A/F

Headers do make your car rich.MAF ends could also lean the car out on some applications.
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