2007 Honda Civic LX Performance Mods

WFOPEN · 02-13-2007, 01:41 PM

Just wondering how much HP/TQ you might get from a CAI or Exhaust and if it's worth doing? Anyone dyno? It's a 2007 Civic LX, Thanks.

Kurt · 02-13-2007, 01:53 PM

Should be about 7hp for the CAI.. exhaust should be the same

HsOffRoad · 02-13-2007, 02:03 PM

Not much...

I'd venture to guess you might see 8-10 Hp with a filter/exhaust change, if that.

Without getting into the engine tuning, and increasing compression and changing camshafts, you're not going to get much more than that.

Is it worth it? Not in & of itself if you think you're gonna get 50 hp and some huge seat-of-the pants power increase by changing out your exhaust and air filter. If you just feel like fooling with your civic for something to do and have no real expectations, perhaps.

For what this stuff costs, if you're looking for a real power boost that you can actually feel (for brief drag-racing type purposes), consider adding a 50-75 hp shot of Nitrous oxide to the car.

Coupled wth the air intake & exhaust mods (and a step or two colder spark plugs) you can reliably gain an additional 50-75 hp (for short periods of time). But that's a difference you will feel, and the cost really isn't that outlandish (especially if you consider the $800 some of these cat-back sysems cost, and $1000+ dollar race-headers.)

Hans

HsOffRoad · 02-13-2007, 02:05 PM

Not much...

I'd venture to guess you might see 8-10 Hp with a filter/exhaust change, if that.

Without getting into the engine tuning, and increasing compression and changing camshafts, you're not going to get much more than that.

Is it worth it? Not in & of itself if you think you're gonna get 50 hp and some huge seat-of-the pants power increase by changing out your exhaust and air filter. If you just feel like fooling with your civic for something to do and have no real expectations, perhaps.

For what this stuff costs, if you're looking for a real power boost that you can actually feel (for brief drag-racing type purposes), consider adding a 50-75 hp shot of Nitrous oxide to the car.

Coupled wth the air intake & exhaust mods (and a step or two colder spark plugs) you can reliably gain an additional 50-75 hp (for short periods of time). But that's a difference you will feel, and the cost really isn't that outlandish (especially if you consider the $800 some of these cat-back sysems cost, and $1000+ dollar race-headers.)

Hans

WFOPEN · 02-13-2007, 02:14 PM

Is tuning avalible for these yet? I'm actualy posting for a friend here too BTW. I've got HP Tuners but I know thats just a GM thing.

cojaro · 02-13-2007, 02:39 PM

Quote:

Originally Posted by WFOPEN

Is tuning avalible for these yet? I'm actualy posting for a friend here too BTW. I've got HP Tuners but I know thats just a GM thing.

As far as I know, the only tuning for the R18 is for a AJP boosted R18 a la Hondata.

turktech · 02-13-2007, 06:34 PM

how about a pulley?

Kidekat · 02-14-2007, 05:54 AM

Quote:

Originally Posted by Kurt

Should be about 7hp for the CAI.. exhaust should be the same

SO would that put my car at 154hp

(Ricer math at its finest)

I don't think with mods such as an intake will outflow the factory exhaust piece. I would estimate you would free up 1-3 hp from lowering the intake restriction, and smoother flow. Same goes for the pully. No gain, just less restriction.

phillipguru · 02-16-2007, 11:02 PM

intake in any form, will net you maybe 1-3hp,
a filter drop in like K&N maybe .5-1 hp.
a full cat back maybe 3 hp,
a straight pipe through the cat and a cat back maybe 5-6hp,
an axel back maybe 1 hp.

People these are single cam engines, they dont breath all that well
their is no way a stock r18 will net 5-7 hp from an intake. companies that put out those dyno sheets are fudging with the dyno, temp, filter ect..

just turbo the car or leave it stock, you wont go fast at all from bolt ons.

PR8thgen<ivi> · 02-18-2007, 10:45 AM

Quote:

Originally Posted by phillipguru

intake in any form, will net you maybe 1-3hp,
a filter drop in like K&N maybe .5-1 hp.
a full cat back maybe 3 hp,
a straight pipe through the cat and a cat back maybe 5-6hp,
an axel back maybe 1 hp.

People these are single cam engines, they dont breath all that well
their is no way a stock r18 will net 5-7 hp from an intake. companies that put out those dyno sheets are fudging with the dyno, temp, filter ect..

just turbo the car or leave it stock, you wont go fast at all from bolt ons.

+1,
I only changed the muffler to a Borla "Wail Tail" muffler just to fill the BIG hole that the HFP rear body kit has on my sedan, I figured that was better than just putting in a simple muffler TIP on there but I know it does not give it tons of performace, I just have it for the looks and that the borla sounds sweet, just kinda like a stock g35 or 350z exhaust note. So I love my R18 for what it is, good looking and gas saving car

edciv · 02-18-2007, 11:10 AM

for some reason i still have faith in these motors.. i'm not doing any motor work to mine yet because i can't justify putting an intake on it and not having the exhaust exit better because we can't put a header on the car at all.. once someone figures something out i think these motors will make some decent power, not insane power but something decent.

osagematt · 09-16-2007, 10:43 PM

i kinda dissagree, hp on and full r18 exhaust wont go up much, but throttle response and top speed will. I just bought a JDM N1 full catback exhaust except for a header and i havnt topped it out yet, but it gets to 115 way faster than it used to, and thats not even in overdrive. I say i can get 120-125 out of her

***LikWidv1*** · 09-17-2007, 10:29 AM

Quote:

Originally Posted by cojaro

As far as I know, the only tuning for the R18 is for a AJP boosted R18 a la Hondata.

Hondata Website:
Vehicle DetailsModel Civic EX,LX,DX
Model Year 2006-
Engine L18 (L18?)

Hondata does not offer any ECU upgrades for this model.

Hondata Products

None offered for this vehicle

black07coupe · 09-17-2007, 10:46 AM

Quote:

Originally Posted by Kurt

Should be about 7hp for the CAI.. exhaust should be the same

BAHAHAHAHAHAHAHAHAHAHA

what a fool

turktech · 09-17-2007, 10:58 AM

Quote:

Originally Posted by black07coupe

BAHAHAHAHAHAHAHAHAHAHA

what a fool

actually that sounds about right.. (according to dynos of members and magazine shootouts)

black07coupe · 09-17-2007, 12:11 PM

Quote:

Originally Posted by turktech

actually that sounds about right.. (according to dynos of members and magazine shootouts)

BAHAHAHAHAHHAHAHAHA

another fool

black07coupe · 09-17-2007, 12:22 PM

CAI = loss of throttle response. MAYBE 2-3 hp gain at top end. -$200 that you coulda spent somewhere else on something good.

turktech · 09-17-2007, 11:21 PM

R18 Test and Tune in this month's "D-Sport" Magazine

turktech · 09-17-2007, 11:23 PM

Quote:

Originally Posted by black07coupe

BAHAHAHAHAHHAHAHAHA

another fool

do a search and then realize who is the fool

black07coupe · 09-17-2007, 11:36 PM

please help me find the thread where theres a dyno sheet proving a 7whp gain from a CAI on a r18.

02-13-2007, 01:41 PM	#1 (permalink)
WFOPEN Junior Member Join Date: Feb 2007 Posts: 2 iTrader: 0 / 0%	2007 Honda Civic LX Performance Mods Just wondering how much HP/TQ you might get from a CAI or Exhaust and if it's worth doing? Anyone dyno? It's a 2007 Civic LX, Thanks.

09-17-2007, 11:21 PM	#18 (permalink)
turktech Senior Member Join Date: Dec 2006 Posts: 262 iTrader: 0 / 0%	R18 Test and Tune in this month's "D-Sport" Magazine Last edited by turktech; 09-17-2007 at 11:42 PM.

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02-13-2007, 01:53 PM	#2 (permalink)
Kurt Senior Member Join Date: Dec 2005 Age: 22 Posts: 3,633 iTrader: 2 / 100%	Should be about 7hp for the CAI.. exhaust should be the same

02-13-2007, 02:03 PM	#3 (permalink)
HsOffRoad Junior Member Join Date: Feb 2007 Location: Media, pA Posts: 20 Hans Scherer iTrader: 0 / 0%	Not much... I'd venture to guess you might see 8-10 Hp with a filter/exhaust change, if that. Without getting into the engine tuning, and increasing compression and changing camshafts, you're not going to get much more than that. Is it worth it? Not in & of itself if you think you're gonna get 50 hp and some huge seat-of-the pants power increase by changing out your exhaust and air filter. If you just feel like fooling with your civic for something to do and have no real expectations, perhaps. For what this stuff costs, if you're looking for a real power boost that you can actually feel (for brief drag-racing type purposes), consider adding a 50-75 hp shot of Nitrous oxide to the car. Coupled wth the air intake & exhaust mods (and a step or two colder spark plugs) you can reliably gain an additional 50-75 hp (for short periods of time). But that's a difference you will feel, and the cost really isn't that outlandish (especially if you consider the $800 some of these cat-back sysems cost, and $1000+ dollar race-headers.) Hans

02-13-2007, 02:05 PM	#4 (permalink)
HsOffRoad Junior Member Join Date: Feb 2007 Location: Media, pA Posts: 20 Hans Scherer iTrader: 0 / 0%	Not much... I'd venture to guess you might see 8-10 Hp with a filter/exhaust change, if that. Without getting into the engine tuning, and increasing compression and changing camshafts, you're not going to get much more than that. Is it worth it? Not in & of itself if you think you're gonna get 50 hp and some huge seat-of-the pants power increase by changing out your exhaust and air filter. If you just feel like fooling with your civic for something to do and have no real expectations, perhaps. For what this stuff costs, if you're looking for a real power boost that you can actually feel (for brief drag-racing type purposes), consider adding a 50-75 hp shot of Nitrous oxide to the car. Coupled wth the air intake & exhaust mods (and a step or two colder spark plugs) you can reliably gain an additional 50-75 hp (for short periods of time). But that's a difference you will feel, and the cost really isn't that outlandish (especially if you consider the $800 some of these cat-back sysems cost, and $1000+ dollar race-headers.) Hans

02-13-2007, 02:14 PM	#5 (permalink)
WFOPEN Junior Member Join Date: Feb 2007 Posts: 2 iTrader: 0 / 0%	Is tuning avalible for these yet? I'm actualy posting for a friend here too BTW. I've got HP Tuners but I know thats just a GM thing.

02-13-2007, 06:34 PM	#7 (permalink)
turktech Senior Member Join Date: Dec 2006 Posts: 262 iTrader: 0 / 0%	how about a pulley?

02-16-2007, 11:02 PM	#9 (permalink)
phillipguru Senior Member Join Date: Jul 2006 Location: rogersville, tn Age: 24 Posts: 364 iTrader: 1 / 100%	intake in any form, will net you maybe 1-3hp, a filter drop in like K&N maybe .5-1 hp. a full cat back maybe 3 hp, a straight pipe through the cat and a cat back maybe 5-6hp, an axel back maybe 1 hp. People these are single cam engines, they dont breath all that well their is no way a stock r18 will net 5-7 hp from an intake. companies that put out those dyno sheets are fudging with the dyno, temp, filter ect.. just turbo the car or leave it stock, you wont go fast at all from bolt ons.

02-18-2007, 11:10 AM	#11 (permalink)
edciv Senior Member Join Date: Sep 2006 Location: New Jersey Age: 21 Posts: 612 iTrader: 0 / 0%	for some reason i still have faith in these motors.. i'm not doing any motor work to mine yet because i can't justify putting an intake on it and not having the exhaust exit better because we can't put a header on the car at all.. once someone figures something out i think these motors will make some decent power, not insane power but something decent.

09-16-2007, 10:43 PM	#12 (permalink)
osagematt Member Join Date: Sep 2007 Location: Lake of the Ozarks Posts: 74 Matt Beckum iTrader: 0 / 0%	i kinda dissagree, hp on and full r18 exhaust wont go up much, but throttle response and top speed will. I just bought a JDM N1 full catback exhaust except for a header and i havnt topped it out yet, but it gets to 115 way faster than it used to, and thats not even in overdrive. I say i can get 120-125 out of her

09-17-2007, 12:22 PM	#17 (permalink)
black07coupe Senior Member Join Date: Jul 2007 Location: BOSTON Posts: 1,356 Mike iTrader: 0 / 0%	CAI = loss of throttle response. MAYBE 2-3 hp gain at top end. -$200 that you coulda spent somewhere else on something good.

09-17-2007, 11:36 PM	#20 (permalink)
black07coupe Senior Member Join Date: Jul 2007 Location: BOSTON Posts: 1,356 Mike iTrader: 0 / 0%	please help me find the thread where theres a dyno sheet proving a 7whp gain from a CAI on a r18.