Comptech B-series Race Header versus Stock (Dyno plots)
Thread Starter
Honda-Tech Member
Joined: Oct 2000
Posts: 5,790
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From: NC, USA
Comptech B-series Race Header versus Stock (Dyno plots)
'00 B18C5
*AEM CAI
*Tanabe Super Racing Medallion
*chipped P28
*P/S omitted
*V-AFC
First run was with stock B18C5 USDM header and cat, second run was with Comptech Race Header and test pipe.
Same data from above, just shown in deltas form
As you can see, money well spent
*AEM CAI
*Tanabe Super Racing Medallion
*chipped P28
*P/S omitted
*V-AFC
First run was with stock B18C5 USDM header and cat, second run was with Comptech Race Header and test pipe.
Same data from above, just shown in deltas form
As you can see, money well spent
Junior Member
Joined: Dec 2001
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From: Toronto, ON, CANADA
Re: Comptech B-series Race Header versus Stock (B18CXr)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18CXr »</TD></TR><TR><TD CLASS="quote">Same data from above, just shown in deltas form
</TD></TR></TABLE>
everybody should plot/calculate delta plots.. those fat lines and large scales on the hp tq/rpm curve are tought to read accurately.. but damn.. a 20hp/tq gain around vtec?...
</TD></TR></TABLE>
everybody should plot/calculate delta plots.. those fat lines and large scales on the hp tq/rpm curve are tought to read accurately.. but damn.. a 20hp/tq gain around vtec?...
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From: HT PRO POKER PLAYER IM FOR FREE STARTUP, MONEY
Re: (SleepnCiViC)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SleepnCiViC »</TD></TR><TR><TD CLASS="quote">nice gain, but numbers are VERY low!!! it seems to be in neeed of serious tuning</TD></TR></TABLE>
it's a mustang dyno you retard not dynojet or some other crap that's overrated
it's a mustang dyno you retard not dynojet or some other crap that's overrated
Thread Starter
Honda-Tech Member
Joined: Oct 2000
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From: NC, USA
Re: (SleepnCiViC)
nice gain, but numbers are VERY low!!!
peak numbers are for bench racers, delta are the key....[dyno jet reads higher anyway......]
it seems to be in neeed of serious tuning
Sure...
P.S. What Marc said
peak numbers are for bench racers, delta are the key....[dyno jet reads higher anyway......]
it seems to be in neeed of serious tuning
Sure...
P.S. What Marc said
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From: Colorado Springs, CO
Re: (RTW DC2)
They show the actual change in power. Think of it as the zero horizontal axis represents the baseline numbers and you can read the difference in power on the Y-axis (vertical)
Brian
Brian
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From: Igloos and dogsleds
Re: (RPM)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RPM »</TD></TR><TR><TD CLASS="quote">Thought I might add some more eye candy: The race header and race exhaust. 
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Seems like the heat shield might still fit there? Just in case...
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Seems like the heat shield might still fit there? Just in case...
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From: Watchingmycarcollectdust in Orlando, FL, USA
Re: (JDM TypeR 508)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDM TypeR 508 »</TD></TR><TR><TD CLASS="quote">These headers are awesome... but too bad they drop really low!!</TD></TR></TABLE>
Tell me about it, I've got one on my EG hatch, and I love it, but now it has a huge dent in it
Tell me about it, I've got one on my EG hatch, and I love it, but now it has a huge dent in it
Re: (SleepnCiViC)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SleepnCiViC »</TD></TR><TR><TD CLASS="quote">nice gain, but numbers are VERY low!!! it seems to be in neeed of serious tuning</TD></TR></TABLE>
All dyno plot #'s are relative, I'd figure after nearly 600 posts you would have been informed of this.
All dyno plot #'s are relative, I'd figure after nearly 600 posts you would have been informed of this.
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From: Fredericksburg, VA, USA
Re: Comptech B-series Race Header versus Stock (B18CXr)
VTEC Point the same for both headers?
Why didn't you run a test pipe for the stock set up so we could see the differences with only one part item change versus 2? If you need one I have the test pipe used for the first header test that bolts to a usdm collector and has a 2-1/2" outlet.
Why didn't you run a test pipe for the stock set up so we could see the differences with only one part item change versus 2? If you need one I have the test pipe used for the first header test that bolts to a usdm collector and has a 2-1/2" outlet.
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From: Fredericksburg, VA, USA
Re: Comptech B-series Race Header versus Stock (B18CXr)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18CXr »</TD></TR><TR><TD CLASS="quote">VTEC Point the same for both headers?
no</TD></TR></TABLE>
I thought so.
OK, Jack now you really aren't comparing apples to apples. Almost all JDM headers will kick the stock header handily when the VTEC is lowered.
no</TD></TR></TABLE>
I thought so.
OK, Jack now you really aren't comparing apples to apples. Almost all JDM headers will kick the stock header handily when the VTEC is lowered.
Thread Starter
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From: NC, USA
Re: Comptech B-series Race Header versus Stock (SMSP)
OK, Jack now you really aren't comparing apples to apples. Almost all JDM headers will kick the stock header handily when the VTEC is lowered.
No other <$1000 header will along you to run sub 4300rpm x-over points. Area under the curve is key.
P.S. Don't hate the competition Dave.
No other <$1000 header will along you to run sub 4300rpm x-over points. Area under the curve is key.
P.S. Don't hate the competition Dave.
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From: Edgewater, MD / La Jolla, CA
Re: Comptech B-series Race Header versus Stock (B18CXr)
While SMSP has a valid point, have we not seen what a Testpipe can do? How about plain jane tuning?
Clearly the header is offering gains beyond just replacing the testpipe.
Clearly the header is offering gains beyond just replacing the testpipe.
