Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

2.5 inch catback too much?

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Old Jan 11, 2007 | 08:22 PM
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From: where cars dont get stolen, NY
Default 2.5 inch catback too much?

for a stock d16? my stock cat has a hole in one end of the neck, and i have a full greddy evo2 with test pipe waiting to go on with my 200whp swap...but i was thinking of just putting the exhaust on now since its stainless...but the piping is massive! is it too much for the stock d16 to handle?

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Old Jan 11, 2007 | 08:34 PM
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Default Re: 2.5 inch catback too much? (killerpenguin21)

you'll be fine, put that **** on!!, i just put a 3" on pending turbo, car runs fine, just loud.
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Old Jan 11, 2007 | 08:51 PM
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Default Re: 2.5 inch catback too much? (blinx9900)

well im worried about losing of some alright tiny horsepower lol....
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Old Jan 11, 2007 | 09:14 PM
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Default Re: 2.5 inch catback too much? (killerpenguin21)

dont worry boss, you dont have any power to loose
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Old Jan 11, 2007 | 09:16 PM
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Default Re: 2.5 inch catback too much? (blinx9900)

got any proof? haha

i guess ill do it and drive it for a few days and if it doesnt work ill put the stock back on...i just gotta figure out how to unplug the rear o2...
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Old Jan 11, 2007 | 09:35 PM
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Default Re: 2.5 inch catback too much? (killerpenguin21)

dude your just being **** now. who cares if you loose some power or tq, your gonna swap soon. if you really care do it all at once.
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Old Jan 11, 2007 | 11:32 PM
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Default Re: 2.5 inch catback too much? (blinx9900)

Just wait.
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Old Jan 12, 2007 | 06:03 AM
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Default Re: 2.5 inch catback too much? (teknoracing)

does anyone have any evidence or your just going by opinion?
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Old Jan 12, 2007 | 06:05 AM
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Default Re: 2.5 inch catback too much? (killerpenguin21)

I thought the Greddy Evo2 was 60mm (2.3")?
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Old Jan 12, 2007 | 06:30 AM
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Default Re: 2.5 inch catback too much? (SkoundrelUSA)

well either way...its big...
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Old Jan 12, 2007 | 06:39 AM
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Default Re: 2.5 inch catback too much? (killerpenguin21)

2.3" isn't that bad.

I had a 2.5" on my B16, it wasn't that bad. Made 174whp but no torque lol
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Old Jan 12, 2007 | 06:40 AM
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Default Re: 2.5 inch catback too much? (SkoundrelUSA)

yeah...but this is a single cam d16...little different than the dohc b16.
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Old Jan 12, 2007 | 06:47 AM
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Default Re: 2.5 inch catback too much? (killerpenguin21)

just put it on!

lol
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Old Jan 12, 2007 | 07:20 AM
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Default Re: 2.5 inch catback too much? (SkoundrelUSA)

I had a 3 in on my EK before i went turbo h22... but when it was running on my d16 it really didnt change compared to stock
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Old Jan 12, 2007 | 07:28 AM
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Default Re: 2.5 inch catback too much? (Otherguy)

im more worried about the lack of cat causing any issues.
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Old Jan 12, 2007 | 07:39 AM
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Default

Just put the piping in, it's a sohc and it's not gonna be a very noticeable difference. Now about the cat, do you have emissions and testing crap? if not than dont worry about it. If its for a secondary o2 sensor have a bung welded and put it in.
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Old Jan 12, 2007 | 07:43 AM
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i got 2.25 on mine d16 and it runs fine dident really loose any it actually runs alot better i dont have a silencer or nothing either i just got an evo2 muffler on it and its not even that loud either
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Old Jan 12, 2007 | 10:42 AM
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Default Re: 2.5 inch catback too much? (killerpenguin21)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by killerpenguin21 &raquo;</TD></TR><TR><TD CLASS="quote">greddy evo2 with test pipe... the piping is massive!
</TD></TR></TABLE>

flame time, if i would have read this part i would not have even tried to help you, why? cause your being ****, 2.3 is NOT massive, its standard for sohc's. if your so damn worried and your going to keep asking us all for PROOF then dont ******* do it man, sorry our real world experience is not good enough, sorry we dont have a ******* dyno graph to show you that what 60mm with no cat does on a soch. were all telling you the same thing, everybody on this board has owned a sohc theres not much to it. your making a huge deal out of something that is not a huge deal, and honestly you should run 2.5" WITH a cat if your only making 200hp. **** people
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Old Jan 12, 2007 | 10:51 AM
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Default Re: 2.5 inch catback too much? (killerpenguin21)

you'll lose some power down low but gain some up top
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Old Jan 12, 2007 | 11:34 AM
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Default Re: 2.5 inch catback too much? (blinx9900)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blinx9900 &raquo;</TD></TR><TR><TD CLASS="quote">

flame time, if i would have read this part i would not have even tried to help you, why? cause your being ****, 2.3 is NOT massive, its standard for sohc's. if your so damn worried and your going to keep asking us all for PROOF then dont ******* do it man, sorry our real world experience is not good enough, sorry we dont have a ******* dyno graph to show you that what 60mm with no cat does on a soch. were all telling you the same thing, everybody on this board has owned a sohc theres not much to it. your making a huge deal out of something that is not a huge deal, and honestly you should run 2.5" WITH a cat if your only making 200hp. **** people </TD></TR></TABLE>

calm down man it smy daily for the next 4 months and i dont want it to be running like **** cuz i put the exhaust on. all i was trying to do was make sure it was people with first hand knowledge of doing it and not just kids saying oh yeah do it it will work.

i just came out of a 400whp boosted non honda so im sorry if i dont know that 2.3 inch piping isnt too much for a 90whp n/a motor. the motor is being built following a setup that will atleast make 200whp in the end....with tuning and a shot of nitrous i thinki be running no cat on the final setup but thats 4-6 months away so ill figure it out then...thanks
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Old Jan 12, 2007 | 11:53 AM
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Default Re: 2.5 inch catback too much? (killerpenguin21)

i see. sorry it just seemed like you didnt believe us, cause most of us said we had done it before... anyway water under the bridge, on an na stock set up all its gonna do is amplify noise and smell a little. if you can life with that do it, if not wait, i personally would wait since its your daily.
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Old Jan 12, 2007 | 12:00 PM
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Default Re: 2.5 inch catback too much? (blinx9900)

1st off your car makes ZERO power....2nd, back pressure is the enemy of higher revving engine that makes said ZERO power in the upper-rpm range.

don't worry about running no cat/high flow cat + 2.5" piping....i had the same setup on my '92 Si stock sohc....i ran it like this with I/H for a while before camming it
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Old Jan 12, 2007 | 12:01 PM
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Default Re: 2.5 inch catback too much? (blinx9900)

idle issues maybe?
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Old Jan 12, 2007 | 12:01 PM
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Default Re: 2.5 inch catback too much? (civicex442)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civicex442 &raquo;</TD></TR><TR><TD CLASS="quote">idle issues maybe?</TD></TR></TABLE>

nope.
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Old Jan 12, 2007 | 06:03 PM
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Default Re: 2.5 inch catback too much? (usdm420)

if the biggest thing i have to worry about is smell thats fine then...thanks guys.
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