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Low trap speed with b20b hatchback

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Old 11-24-2005, 07:26 AM
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Default Low trap speed with b20b hatchback

1992 Civic VX hatchback

-B20b with LS cable transmission
-DC 4-2-1 header
-GSR exhaust minus muffler
-gutted cat
-custom CAI
-stock b18A intake manifold and throttle body
-gsr fuel filter and fuel pump
-skunk2 adjustable cam gears set to 0,0
-ignition timing set at 16 btdc

16.2 to 16.7@84-86 mph trap speeds in the quarter mile. Shouldn't I be trapping higher?

Things that may be holding me back...
-1990 b18a intake manifold ( i think it's this )
-TPS adjusted wrong
-my custom CAI, the inside diameter is only 58mm.. lol, is this too small?

Things I have done since then
-blox intake manifold
-1996 integra b18b throttle body
-short ram intake bigger than 58mm

Let me know what you guys think the problem might be.
I did a full tune-up before the track, plugs, wires, cap and rotor, igniter, seafoam.

I'll be hitting the track again on the 2nd of Dec. hopefully I can get the problem figured out.
Old 11-24-2005, 07:51 AM
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Default Re: Low trap speed with b20b hatchback (inline4)

Trap speeds are pretty close. 1/4 mile times seem high.
Old 11-24-2005, 07:57 AM
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Default Re: Low trap speed with b20b hatchback (my_slow_civic)

Nevada is at a pretty high elevation right? That could be why you're so far off from the rest of us. Try going when you know the air is gonna be really cold.
Old 11-24-2005, 08:30 AM
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Default Re: Low trap speed with b20b hatchback (BauleyCivic)

HOnestly guttign out your cat is really goign to screw up your power. That might have something to do with it.
Old 11-24-2005, 08:56 AM
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Default Re: Low trap speed with b20b hatchback (inline4)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by inline4 &raquo;</TD></TR><TR><TD CLASS="quote">1992 Civic VX hatchback

-B20b with LS cable transmission
-DC 4-2-1 header
-GSR exhaust minus muffler
-gutted cat
-custom CAI
-stock b18A intake manifold and throttle body
-gsr fuel filter and fuel pump
-skunk2 adjustable cam gears set to 0,0
-ignition timing set at 16 btdc


16.2 to 16.7@84-86 mph trap speeds in the quarter mile. Shouldn't I be trapping higher?

Things that may be holding me back...
-1990 b18a intake manifold ( i think it's this )
-TPS adjusted wrong
-my custom CAI, the inside diameter is only 58mm.. lol, is this too small?

Things I have done since then
-blox intake manifold
-1996 integra b18b throttle body
-short ram intake bigger than 58mm

Let me know what you guys think the problem might be.
I did a full tune-up before the track, plugs, wires, cap and rotor, igniter, seafoam.

I'll be hitting the track again on the 2nd of Dec. hopefully I can get the problem figured out.
</TD></TR></TABLE>


if your up in high altitude those times are about right. my coupe runs 16.2-16.0 (minus the crower 403's) n/a out here at 5800 + ft elevation, and my trap speeds are only slightly higher at 87mph. so don't feel too bad, the only way to lay down some serious power at high altitude is boost
Old 11-24-2005, 09:20 AM
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what ECU are you running?

check engine lights?
Old 11-24-2005, 10:02 AM
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Default Re: (EGmikeH22)

i'm running an obd1 p75.
altitude is roughly 2800 feet at the track.
it's weird though, integra gsr's with just bolt-ons trap 92 mph all day long.
my friend ran a 15.2@92 in a 4 door gsr with just a CAI.
i guess i won't know til i hit the track again, might hit a dyno too.
Old 11-24-2005, 10:21 AM
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Default Re: (inline4)

that ls tranny isn't helping your trap speed any
Old 11-24-2005, 10:23 AM
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throw a vtec head on that baby
Old 11-24-2005, 10:23 AM
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Default Re: (IHateJDM)

You have a B20 with an LS tranny. I don't really think your trap speeds are that slow. Especially considering how high elevation Reno is.


Modified by GetawayInMoscow at 11:35 AM 11/24/2005
Old 11-24-2005, 10:30 AM
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Default Re: (IHateJDM)

ditto, get rid of the ls tranny and go gsr or si. didn't u notice a difference with the bigger bore cai? i would put a muffler on since your cat is gutted, you have no restriction in your exhaust.
Old 11-24-2005, 10:45 AM
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Default Re: (95DxSi-R2)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95DxSi-R2 &raquo;</TD></TR><TR><TD CLASS="quote">ditto, get rid of the ls tranny and go gsr or si. didn't u notice a difference with the bigger bore cai? i would put a muffler on since your cat is gutted, you have no restriction in your exhaust.</TD></TR></TABLE>

That, and a VTEC head if you have the money
Old 11-24-2005, 12:16 PM
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Default Re: (95DxSi-R2)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95DxSi-R2 &raquo;</TD></TR><TR><TD CLASS="quote">ditto, get rid of the ls tranny and go gsr or si. didn't u notice a difference with the bigger bore cai? i would put a muffler on since your cat is gutted, you have no restriction in your exhaust.</TD></TR></TABLE>

Actually the gutted cat is goign to mess things up since it is not a test pipe, but in fact a big *** hollow chamber. Seriously man...that is goign to screw up yoru exhaust flow, not make it better.
Old 11-24-2005, 12:22 PM
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Did you mention if there were any CEL's? I think you should boost it
Old 11-24-2005, 12:42 PM
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Test pipe and a better tranny will get you way better times.
Old 11-24-2005, 02:26 PM
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Default Re: (JDMlyfestyle)

test pipes are overrated
Old 11-24-2005, 03:29 PM
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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IHateJDM &raquo;</TD></TR><TR><TD CLASS="quote">test pipes are overrated</TD></TR></TABLE>

Spend $30, gain 1-2 hp

vs

Spend $100, no gain

Yeah thats a tough one...

Old 11-24-2005, 03:33 PM
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you are losing back pressure and all low end power with a gutted cat and no muffler. where is the muffler cut at?
Old 11-24-2005, 04:04 PM
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Default Re: (JDMracer17)

I don't know many people who drive on the low end at the track. I don't see anything below 4k at the track. Your ETAs should be WAY lower than what you're hitting. Something seems wrong to me. I would definitely invest in a test pipe for starters. I'm running 15.71 @ 85.xxx in my 98 VTEC-E coupe. What are your 60's? Better yet, give us your entire slip.
Old 11-24-2005, 04:08 PM
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Default Re: (GetawayInMoscow)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GetawayInMoscow &raquo;</TD></TR><TR><TD CLASS="quote">Spend $30, gain 1-2 hp

vs

Spend $100, no gain

Yeah thats a tough one...</TD></TR></TABLE>

having run a test pipe for over a year, i can say that on my all motor setup, it yeilded no gains over a hi-flow cat. so in my case, $40 test pipe with the smell of fuel constantly surrounding your car and a raspy exhaust note vs $50 hi-flow cat with a 0 hp gain/loss, you're right, its a no-brainer. I could see someone gaining power with an FI setup, but for NA, you're not going to gain anything noticable
Old 11-24-2005, 05:36 PM
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Default Re: (JDMracer17)

I ran 15.84 @ 87 mph with no cat magnaflow muffler short ram intake and act clutch when I put high flow cat on car and header dc 4-2-1 ran 15.38 @ 88-89
Old 11-24-2005, 05:36 PM
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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mistamike17 &raquo;</TD></TR><TR><TD CLASS="quote">I don't know many people who drive on the low end at the track. I don't see anything below 4k at the track. Your ETAs should be WAY lower than what you're hitting. Something seems wrong to me. I would definitely invest in a test pipe for starters. I'm running 15.71 @ 85.xxx in my 98 VTEC-E coupe. What are your 60's? Better yet, give us your entire slip.</TD></TR></TABLE>

at 2800 ft, he'll be feeling some of it but not all......trust me....altitude sucks for n/a cars.....i ran my car back in san diego before they closed down carlsbad raceway and i managed a best of 14.9 @ 92mph (on drag radials) so when i got here to colorado i was all butt hurt running 16.0's.
Old 11-24-2005, 06:45 PM
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Default Re: (Mistamike17)

well, no check engine lights, the car runs perfect, getting about 25-27 mpg, except for at about 5000 rpm with a quarter throttle, there is a change in engine noise, and it lags for a few hundred rpms, then picks up again.

my 60 fts were anywhere from 2.6 to 3.1, they didn't help my ET much but they also don't greatly affect the trap speed, if anything those bad 60s would make the trap higher

at the 1/8 I ran from 10.5 to 11.0 with trap speeds of 68-69 mph, these trap speeds seem low too.

well here's an exact replica typing of the best timeslip

R/T .449
60` 2.656
330 7.002
1/8 10.595
MPH 68.48
1000 13.678
1/4 16.297
MPH 85.79

I guess even with my lowish trap speeds I can still manage a mid 15.
I raced a truck that ran a 15.7@88mph and he only got a 2.4 60ft, but he's beating me by 1 mph at the 1/8 and 2 mph at the quarter.
Old 11-24-2005, 07:26 PM
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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by freakin_eLRoD &raquo;</TD></TR><TR><TD CLASS="quote">

Originally Posted by freakin_eLRoD

when i got here to colorado i was all butt hurt running 16.0's.</TD></TR></TABLE> i got here to colorado i was all butt hurt running 16.0's.
that sux
Old 11-24-2005, 07:28 PM
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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xEnderx &raquo;</TD></TR><TR><TD CLASS="quote">

Actually the gutted cat is goign to mess things up since it is not a test pipe, but in fact a big *** hollow chamber. Seriously man...that is goign to screw up yoru exhaust flow, not make it better.</TD></TR></TABLE>
true, that would slow it down, smaller to bigger to smaller


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