parts for hx same as ex?

I have a 97 hx and I have been having a hard time finding performance parts for my model. I have been wondering if the parts that work on the ex models would fit on the hx models also. i.e. cold air intake, headers, supercharger...etc. thanks

Putting ANY mods on an HX engine is an absolute total waste of time and money. Get a motor swap first :bigthumb:

screw sparq hes just an asshole to everyone. I'm with you I have an HX that im modifying. Also there is a guy "undergroundimports" or something like that who has a 14.7 1/4 mile HX. sparq what does your car run?

what im trying to say is dont let ppl like sparq try and tell you you cant modify an hx. hey, its better then a DX or LX or any other shit model. Wow an EX has 127 HP and an HX has 115 HP, big deal. Plus it still has vtec, vtec-e but vtec none the less. I probably will do an engine swap later on maybe in a couple years. But for now an HX is fine with me... you can make any car faster.

As far as your question... im not completely sure but some stuff fits both EXs and HXs, like the injen intake i ordered. But i belive the header on the HX is different then others... so this is a good question id like to know also...

I'm gonna have to agree with mattyoung33. I dont think its really a bad idea to modify an HX. They do have more hp than the other models besides the ex and si. Besides my brother has a car with a v6 with an exhaust and air intake and he was beat by 2 modified civic hx's. so any info anyone has on modifying an hx i would greatly appreciate.

hey civhx - here's the low down on HXs

HX civics are almost identical bolt-up wise as the EX. Intakes for an EX will work fine. The header, however, is different, as is the exhaust system. The reason is that the catalytic converter on the EX is in the normal place, between the two axles, and that works for them. The HX, however, is the highway edition of the civic, and theirfore honda, in its infinite wisdom, thought it would be good for a highway edition civic to have an engine that warms up really fast. And as such, they decided to put the catconv directly underneath the block. Good if you want to get your engine warm fast, bad if you want to mod your car. (well, if no other trims are like that anyway).

So everything, basically, will bolt up direct if it works for an EX, except stuff on the exhaust side of the block. Your best bet, if you ask me, is to just get a custom exhaust made - it won't be much more expensive, and you can do a lot of fun stuff with it. But make sure that when you do, you have them make it so it bolts up to an EX header. Or you can just buy stuff for an HX (yes they exist).

Anything else?

so basicly the intakes for ex and hx are the same but i cant buy headers or exhaust for an hx that is designed for an ex? would the ex exhaust and headers work if i just took the cat converter off completely?

oh and where are some good places to find hx parts? i've been having a hell of a hard time. thanks

if you want a cat-back exhaust system Thermal is what I have on mine. I reccomend it alot! Yes they make them to fit the HX specifically...

hey, its better then a DX or LX or any other shit model. Wow an EX has 127 HP and an HX has 115 HP, big deal. Plus it still has vtec, vtec-e but vtec none the less. I probably will do an engine swap later on maybe in a couple years. But for now an HX is fine with me... you can make any car faster.

Im not even gonna dignify that quote with a response.

I know i asked this before but i'm getting ready to order a cold air intake for my car off ebay and i can get one for about $35 if i order one thats for an ex but i have an hx and i just want to know if anyone knows for sure that it'll work on an hx also even though it doesnt say that it will. i could save a lot of money buying one for an ex model instead and i dont have a lot of money to throw around.
here is an example of one i'm looking at:

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2424242781&category=38634

civ - i guarantee you that if it really will work for the ex, it'll work for the hx as well. The chassis and engine bay are formed the same, the engine block is the same D series, and the intake manifold is the same an in the same place. It'll work. =)

ok thanks i really appreciate the help. i'm just kind of unsure about some stuff because i have never done anything of this sort before. i'm gonna go ahead and order my intake soon then. thanks again :bigthumb:

Originally posted by mattyoung33
what im trying to say is dont let ppl like sparq try and tell you you cant modify an hx. hey, its better then a DX or LX or any other shit model. Wow an EX has 127 HP and an HX has 115 HP, big deal. Plus it still has vtec, vtec-e but vtec none the less. I probably will do an engine swap later on maybe in a couple years. But for now an HX is fine with me... you can make any car faster.

Sparq's just tellin him the truth man. I wish I could sell every part I bought for my DX back in the day because it seems such a waste of money now that I have my B16B. I had an intake, header, exhaust w/custom welded catalytic converter, crank pulley, fuel rail/filter/pump, nifty plug wires, pistons, rods, nitrous oxide and at least $600 worth of bottle fills. It seems so, so stupid now because with all that money I could have bought the B16B, which I would rather have stock than all the perfume on a pos. Just don't do what I did and spend all your money on it. Anyways, yeah everything for the D-series engines are swappable (LX, DX, HX, EX).
I may be wrong, but I don't think HX engines have Vtec. I bought one for $170 to replace my blown DX (needed a motor asap, no second car) and there's no vtec solenoid next to the distributor. What's this vtec-e you're talking about? I've never heard of it...

it has vtech it just works differently. it has 16 valves but only uses 8 up until about 2,500 rpms or so i think then it switches to 16. i can only feel the difference when its just me in the car and possibly someone else.

i'm not really planning on dumping a lot of money into my car. i'm just going to modify when i get money and only go as far as intake, headers and exhaust. i dont really have the tools or know how to do a swap or the cash. so for now its stay as a stock engine. later on i might try to swap in a prelude motor but right now i'm trying to pay my way through college.

I hear ya on the college deal, it sucks sometimes. Get an intake first, you'll be happiest with that because imo it sounds better than a fart pipe and adds the most power of the three.. oh yeah and costs less too :bigthumb:

thanks dude, i'm just gonna order a cheaper non name brand intake and save like $50. they're all the same anyways. i'm just gonna go with an ex intake because they are easier to find and cheaper, at least where i'm looking.

Originally posted by 97civichx
thanks dude, i'm just gonna order a cheaper non name brand intake and save like $50. they're all the same anyways. i'm just gonna go with an ex intake because they are easier to find and cheaper, at least where i'm looking.
whoa wait a minute, do you have an ex-type throttle body or dx-type? There is a difference there that I just remembered, but I think the HX looks the same as the DX one... or maybe I'm thinking LX? The DX tb points upward and the EX points to the left.

Originally posted by 97civichx
it has vtech it just works differently. it has 16 valves but only uses 8 up until about 2,500 rpms or so i think then it switches to 16. i can only feel the difference when its just me in the car and possibly someone else.
Actually, you're partially right. VTEC-E works somewhat like you said. below the VTEC threshold it runs on 12, not 8. 1 intake & 2 exhaust valves for each cylinder. After the threshold, not only does it switch to the full 16 valves, but the timing also changes like normal VTEC, though not as drastically (hence why the HX has more power than the DX. Just clarifying. And as i said before, ALMOST everything can be swapped from the EX to the HX. Nothing on the exhaust side can, unless you swap everything on the exhaust side. And I think that might mess up the sensors, but i'm not sure. Haveta double check that.

Originally posted by Ricochet

whoa wait a minute, do you have an ex-type throttle body or dx-type? There is a difference there that I just remembered, but I think the HX looks the same as the DX one... or maybe I'm thinking LX? The DX tb points upward and the EX points to the left.
The LX and DX have the same throttle body. The HX and EX have the same throttle body also.

i have the throttle body that points to the left towards the passenger side.

Originally posted by 97civichx
i have the throttle body that points to the left towards the passenger side.
cool man, you can go online about anywhere and get an AEM cold air intake for ~$150. You won't regret that buy.

i've seen some replacement headers that have 2 holes for o2 sensors so i dont know if that would screw things up or not. if i were doing exhaust i'd do headers and a full cat back so i believe i'd replace it all.

nononono - if you remember my prior post, the problem is not the header or the exhaust, it's the placement of the cat that's the problem. So replacing the header won't work cuz it won't bold up right, and the cat-back will be too short (unless you get it for an hx)

i found headers that say they are designed for hx models...would those not work?

Originally posted by 97civichx
i've seen some replacement headers that have 2 holes for o2 sensors so i dont know if that would screw things up or not. if i were doing exhaust i'd do headers and a full cat back so i believe i'd replace it all.
On my DX hatch (when it was stock) the cat was integrated with the exhaust manifold. I bought a header and exhaust, thus unlinking the converter completely. My exhaust sounded like ass, so I got a buddy to hack the pipe and weld in a $100 Jeg's special. He also drilled a hole right after the cat and welded a nut onto it, and screwed in my second O2 sensor (first one plugs into the header). Is your converter integrated? If so you're going to be in some trouble, having a coupe and all... The length difference between a coupe and a hatch is the length of an EX's catalytic converter. My header bolts right up to my exhaust, but on an EX the cat is a separate part bolted in between the two. If you buy a header and exhaust that ~1.5ft length will be a void. EX catalytic converter = $800 at a dealer, and it's illegal for junkyards to sell them.

nononono - if you remember my prior post, the problem is not the header or the exhaust, it's the placement of the cat that's the problem. So replacing the header won't work cuz it won't bold up right, and the cat-back will be too short (unless you get it for an hx)
amen

You should take a pic of underneath your car so I can help you out better. I've been under Honda's for years and would be able to tell you if something will fit or not. I just need to see where your exhaust manifold meets the exhaust pipe.

it has the cat converter built into the exhaust manifold but i think there is a second one on the exhaust somewhere...that only what i've been told. i havent actually seen it because i dont have a way to get my car off the ground here. i have to go to a friends for that.

Take a picture and we'll (try to:smile:) help you out man. I'm actually learning here...

ok good deal, i'll have to wait till tomorrow for the pictures though. what should i take pictures of anyways?

Just your exhaust piping from engine to muffler (take two or three).

ok i took a few pictures and these were the best i could get. i had to crawl under the car for a few cause i couldnt get a hold of my friend to get the car off the ground.

another one

another shot of the manifold

Take one more of where the exhaust manifold meets the exhaust pipe. Coming off your engine is one cat, but I can't tell what that thing is on the second pic... looks like a heat shield around your pipe.

there is a heat shield at the shift linkage - i think that's what you're looking at

Is this picture facing towards the front or rear of the car?

http://www.automotiveforums.com/vbulletin/attachment.php?postid=1099517

that picture is towards the front

Oh okay. Take a pic from the side where the exhaust manifold meets the exhaust piping, I want to see if there's a cat in between the two or whatever's going on to see if you could fit a normal exhaust in there.

Originally posted by mattyoung33
screw sparq hes just an asshole to everyone. I'm with you I have an HX that im modifying. Also there is a guy "undergroundimports" or something like that who has a 14.7 1/4 mile HX. sparq what does your car run?

what im trying to say is dont let ppl like sparq try and tell you you cant modify an hx. hey, its better then a DX or LX or any other shit model. Wow an EX has 127 HP and an HX has 115 HP, big deal. Plus it still has vtec, vtec-e but vtec none the less. I probably will do an engine swap later on maybe in a couple years. But for now an HX is fine with me... you can make any car faster.

As far as your question... im not completely sure but some stuff fits both EXs and HXs, like the injen intake i ordered. But i belive the header on the HX is different then others... so this is a good question id like to know also...
Gee im glad I actually checked back in this thread. I love it how people can personally attack me, and yet know ABSOLUTELY NOTHING about me!

The HX is made for FUEL ECONOMY - go ahead and buy headers and cams and cam gears and pistons and rods and whatever else you want, and after youve spent way more then you needed to, youll end up with a half assedly fast car - where as you can swap the motor, do the same mods and actually get some real performance gains from the motor.

Dont listen to cock eyed fawks like this that tell you to do something JUST to be differant, that is why there are a million cars on the road with huge disgusting spoilers and large ass fart cans that everyone makes fun of. Dont be that guy in the parking lot who thinks hes mad tight for modding up his HX motor.

And BTW... my 91 LX w/ DOHC ZC can clock a 14.7 in reverse. With 0 mods, oh wait... a CAI, whoopy!

ok i just went and looked under my car (same model etc as his) and yeah there's a cat there too, either bolted to the manifold, or actually part of the manifold, wrapping underneath the engine block and extending back to the exhaust underneath the oil pan. I wish i had a digi-cam to show you, but i don't.

need a pic bro...

Originally posted by sparq

Gee im glad I actually checked back in this thread. I love it how people can personally attack me, and yet know ABSOLUTELY NOTHING about me!

The HX is made for FUEL ECONOMY - go ahead and buy headers and cams and cam gears and pistons and rods and whatever else you want, and after youve spent way more then you needed to, youll end up with a half assedly fast car - where as you can swap the motor, do the same mods and actually get some real performance gains from the motor.

Dont listen to cock eyed fawks like this that tell you to do something JUST to be differant, that is why there are a million cars on the road with huge disgusting spoilers and large ass fart cans that everyone makes fun of. Dont be that guy in the parking lot who thinks hes mad tight for modding up his HX motor.

And BTW... my 91 LX w/ DOHC ZC can clock a 14.7 in reverse. With 0 mods, oh wait... a CAI, whoopy!
sparq relax man... damn. The dude wants to mod his HX - if it makes him happy, let him do it. Saying the HX is a waste of time and money is a matter of opinion, which I don't agree with, nor does several people on this forum. Ok, so the HX is made for fuel economy - and? The only place on the power band that makes a difference is below 2,500 rpms. After that the EX and HX are virtually identical, save for whatever 11 hp. How much time do you spend on the strip below 2500 rpms? The HX was designed for fuel economy, yes. But it was also designed to have the get-up-and-go when you need it. So you save gas AND get power. Case in point, DX vs HX. HX is designed for fuel econ, yet will tear a DX apart any day of the week. And the HX is lighter than the EX as well, and so the HX can hang with the EX in the strip too - in fact, it'll hang so well that the final measure of who wins the race will be driver skill, not the car. If you don't wanna mod an HX, cool. If you don't think other people should, cool. But don't step in here calling people... whatever the hell you called us.

And let me point out some stock 1320 times just to make my case:
1996 Honda Civic HX 17.1
1996 Honda Civic EX 17.6

the exhaust manifold.

another one

here is a picture of the downpipe from the exhaust manifold. sorry its the best i got

i hope those pictures help. i took a lot more but i thought those would be the best.

That's exactly what I needed. An exhaust will bolt right up to your exhaust manifold, but you won't be able to buy a header unless you get an oem cat or test pipe to link the two together in a ~1.5 ft length. Here's a shitty drawing to aid you.

HX
exhaust pipe..........cat&manifold

=------------------=======E


EX
exhaust pipe...........cat...manifold

=------------------|===|==E


The exhaust pipes are just as long, but the exhaust manifold is shorter because the cat takes up space in between the two. Buy an exhaust, don't even bother with a header, and get a cold air intake. You'll be plenty happy with that.

You go on believing what you want to believe - and I will go on believing what I want to believe.

DX coupe is 2271 lbs

HX coupe is 2324 lbs

But which one is lighter? HX does the 1/4 in 17.3 EX in 16.8

Got your facts wrong there buddy.

thanks for the help, i really appreciate it. if i got the exhaust like you said would i be able to get a header if its designed specificly for the hx or do you think that would still cause problems. i guess it doesnt really matter if i get headers or not, just curious to see if it can be done easily.

A header designed for an HX sounds either good or bad. If it comes with an integrated converter that would be awesome. If it doesn't, and just comes with an extended pipe to reach the exhaust, it will sound like shit and an engine light will pop up. Seriously, don't even bother getting a header. They do make the exhaust sound better, but it's not worth the headaches and money that I've gone through/you'll have to go through, for 4-5 horsepower.

Originally posted by sparq
You go on believing what you want to believe - and I will go on believing what I want to believe.

DX coupe is 2271 lbs

HX coupe is 2324 lbs

But which one is lighter? HX does the 1/4 in 17.3 EX in 16.8

Got your facts wrong there buddy.
I didn't have the facts wrong, i just posted them backwards, my fault. I'm fully aware that the EX is .5 faster than an HX. The stats I have on them, however, say 17.1 for EX, 17.6 for HX. Stats can vary - you know that. Doesn't really matter - it's still .5 sec difference.

And i didn't say the HX is lighter than the DX - it's lighter than the EX.

And no one on here is going to argue that a swap will produce a faster car - i don't think everyone that performs a swap does it because they think its a fad (though i'm sure there are exceptions). Perhaps some people would rather see what they can do with what they got. See what kind of car they can squeeze out of that SOHC 4-banger.

At any rate, you hit the crux of it when you said "You go on believing what you want to believe - and I will go on believing what I want to believe. " Just let it go.