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Dynoed the Obx cams, prospeed header,and skunk2 intake manifold.

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Old 12-26-2004, 03:19 PM
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I just got a video of my freind launching on a ls hatch in my 4 door. I just dont know how too host it on here. He was a cool person i talked too him he said its full bolt on ls awaiting a vtec head.
Old 12-26-2004, 03:57 PM
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there is something wrong....that curve is fucked up...

why after VTEC engagement does power drop like that? makes no sense...you should be making even more power if your curve didn't take a nosedive at 5500

If you notice...your a/f goes right to 14:1 and then you curve tanks...you need more fuel in this area to keep the power up...that and some timing adjustment or something...
Old 12-26-2004, 04:31 PM
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Default Re: (prospeed)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by prospeed &raquo;</TD></TR><TR><TD CLASS="quote">I recommend moving the vtec changeover point a lil higher. That should eliminate the dip. This happens sometimes when the cam is too big. Try that. </TD></TR></TABLE>

hey Brian can you explain that? The power increase is very large at the beginning I'm wondering why you would increase the VTEC crossover...don't you think the 14:1 A/F is killing the power increase?
Old 12-26-2004, 09:31 PM
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Default Re: (satan_srv)

When the fuel was added at the the 14:1 a/f it would bog even with just 1%.I added 2% unmatch fuel. I dont know if its just me but it feels like i got rid of the power dip bc it seemed to just slam the needle to redline.
Old 12-29-2004, 11:50 AM
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Any new track times recently? I am mainly concerned about your traps.
Old 12-29-2004, 04:27 PM
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Default Re: (satan_srv)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by satan_srv &raquo;</TD></TR><TR><TD CLASS="quote">there is something wrong....that curve is fucked up...

why after VTEC engagement does power drop like that? makes no sense...you should be making even more power if your curve didn't take a nosedive at 5500

If you notice...your a/f goes right to 14:1 and then you curve tanks...you need more fuel in this area to keep the power up...that and some timing adjustment or something...</TD></TR></TABLE>

i can elaborate on this a bit for you satan. the dip is caused by both the header and the vtec point. the vtec point is fine for a traditional 421 header but for some reason this header falls off at around 5500. now having said that it can be corrected with a higher vtec point. i have this problem with my car and will be moving vtec to approx 6k.

i cant explain why this dip occurs but i think it is a back pressure issue at this rpm on the big cam profile. look at precord96 dyno and he had to move his up high. i think his is too high but the jun 3 primaries pull to 6k very well. look at the dip in my dyno identical. fuel and timing cannot correct this. i have tried.
Old 12-29-2004, 06:45 PM
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Looks like you have a dip (or peak) in you A/F ratio right where your power dips after VTEC. If you can, try to smooth that out.
Old 01-29-2005, 11:53 AM
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Default Re: (LowFlyin')

Ok the uberdata is street tuned. Im going to the strip in an hour. I will post the slips tonight. Im hoping for 14.5's.


Modified by matix at 9:35 AM 1/30/2005
Old 01-29-2005, 12:30 PM
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Default Re: (matix)

Nice numbers

14.5's shouldn't be any problem
Old 01-30-2005, 07:39 AM
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Default Re: (SKDRCR)

Your accord weighs about 3100 pounds and can complete a 1/4 mile in about 14.55 seconds. That means that you've got about 198.91 HP at the wheels, and about 258.59 HP at the flywheel.


I think this time was reasonable being i made 203 sae corrected. I think my traps could have increased I will post the slip soon.
Old 01-30-2005, 11:41 AM
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Default Re: (matix)

how fast did you end up going? How much does your car weigh? We have noticed setting the vtec changeover at around 5600 to 6000 has yielded the best results with the prospeed header and jun cams.
Old 01-30-2005, 03:53 PM
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Default Re: (prospeed)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by prospeed &raquo;</TD></TR><TR><TD CLASS="quote">how fast did you end up going? How much does your car weigh? We have noticed setting the vtec changeover at around 5600 to 6000 has yielded the best results with the prospeed header and jun cams. </TD></TR></TABLE>
Car weighs 3100 with me in it. It did the 14.55 at 94.15. My freind tried running it and spun 1st bogged 2nd and pulled a 95.3 mph.
Old 01-31-2005, 12:45 AM
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i think my hp's are down on my car for my mods. what do you guy's think.

jdm h22a
dc header
maganaflow c/b
gutted high flow cat
aem pulleys
aem fuel rail and reg
aem cai
apex vafc.
crower stage 2 cam's
nx nitrous kit (wet)
shunk2 intake manifold
str 70mm t/b
zex plug's
best 1/8 mile 8.44@82.29mph slipping clutch
183 hp 145 tg n/a (sae)
252 hp 233 tq on 75 shot (sae)


Modified by elmo244 at 1:59 AM 1/31/2005


Modified by elmo244 at 2:00 AM 1/31/2005
Old 01-31-2005, 12:50 AM
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Default Re: Dynoed the Obx cams, prospeed header,and skunk2 intake manifold. (matix)

also are those numbers std or sae?
Old 01-31-2005, 02:39 AM
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Default Re: Dynoed the Obx cams, prospeed header,and skunk2 intake manifold. (elmo244)

its actuall hp, it made 203 sae.
Old 01-31-2005, 04:08 AM
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Default Re: (elmo244)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by elmo244 &raquo;</TD></TR><TR><TD CLASS="quote">what do you guy's think.

dc header
maganaflow c/b
gutted high flow cat

183 hp 145 tg n/a (sae)</TD></TR></TABLE>

I think this is holding you up ............. get a decent header and a true 2.5" header back set-up, and tune that bad boy! You have a ton of air (theoretically) coming in, but it is having a hard time getting out!
Old 01-31-2005, 10:56 AM
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Default Re: (TypeR0207)

where can i get a prospeed header? and how much?
Old 01-31-2005, 11:17 AM
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Default Re: (elmo244)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by elmo244 &raquo;</TD></TR><TR><TD CLASS="quote">where can i get a prospeed header? and how much?</TD></TR></TABLE>
Look up the page. The user prospeed is the guy to contact to get yourself the header. They go for about 550. Its a good header and the gains are def worth it.
Old 02-16-2005, 03:28 PM
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Default Re: (matix)

do you think you would get some more power by bumping compression up to 11:1?

Im looking at getting the stage 1 cams also.
Old 02-16-2005, 03:50 PM
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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B16B &raquo;</TD></TR><TR><TD CLASS="quote">do you think you would get some more power by bumping compression up to 11:1?</TD></TR></TABLE>
Of course you would.
Old 02-16-2005, 04:54 PM
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Default Re: Dynoed the Obx cams, prospeed header,and skunk2 intake manifold. (matix)

Nice numbers. Any problems with the skunk2 intake manifold and the firewall?
Old 02-16-2005, 06:59 PM
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Default Re: Dynoed the Obx cams, prospeed header,and skunk2 intake manifold. (JakeIsCool)

great number man...u did not p&p the head??stock CR?? just swap the cams in?? it's nice to see with just the stage 1 cams pull over 200whp......i hope my skunk2 stage 2 pull more then 215.....
Old 02-16-2005, 08:43 PM
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Default Re: Dynoed the Obx cams, prospeed header,and skunk2 intake manifold. (frozenb)

if your bottom end is stock, the stage 2 will not make a lot of power.. you need a lot more compression for them
Old 02-16-2005, 10:55 PM
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Default Re: Dynoed the Obx cams, prospeed header,and skunk2 intake manifold. (matix)

Very Nice numbers...So I see you chose prospeed over D.C.... I see why now I wish I would have went toward the prospeed way....**** with gains like that I think I am going to be happy with the numbers I get as soon as Hasport in Phoenix tunes my car. With the mods I have I am hoping to get close to 250 whp on my 97 lude. Nice numbers once again. I am very impressed with the OBX cams........
Old 02-23-2005, 03:24 PM
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Default Re: Dynoed the Obx cams, prospeed header,and skunk2 intake manifold. (matix)

is obx that good? stage 1?


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