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Old December 11th, 2008, 06:40 AM   #1
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tsx intake manifold.

why do people install tsx parts on the accord engine?
arent they the same engine?
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Old December 11th, 2008, 06:45 AM   #2
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Do you mean the 4banger? I know we swap TL parts.
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Old December 11th, 2008, 06:49 AM   #3
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Yeah people only use the tsx IM on the 4-bangers.
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Old December 11th, 2008, 07:00 AM   #4
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Quote:
Originally Posted by yz85rider View Post
why do people install tsx parts on the accord engine?
arent they the same engine?
not too sure if you realize that the 2 motors put out different numbers for the "same" motor....

the accord is k24a4 and TSX is k24a2..
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Old December 11th, 2008, 08:20 AM   #5
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Quote:
Originally Posted by yz85rider View Post
why do people install tsx parts on the accord engine?
arent they the same engine?
As for the TSX intake manifold is bigger and it allows more air to go thru and produces more power from what I have heard.. There was a thread on Gen7 w/ photos and you could see the diff between our OEM and the TSX IM (huge diff).. I can't find the pics and Skip explanation.

Last edited by MrRoLo150; December 11th, 2008 at 08:34 AM..
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Old December 11th, 2008, 11:17 AM   #6
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Quote:
Originally Posted by die_lawn View Post
not too sure if you realize that the 2 motors put out different numbers for the "same" motor....

the accord is k24a4 and TSX is k24a2..
i didn't know that.
i've never looked into the tsx.
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Old December 11th, 2008, 12:37 PM   #7
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This was originally posted by Steven, aka Skippy. Credit goes to him on this write-up.

Quote:
Everybody wants to squeeze just a little more power out of their 7th gen, and this is a cheap way to get some noticible response. This idea came from member OUTERSQUARE and he deserves part credit in giving me the idea to do this mod, and also in answering some of my introductory questions related to the install.

This guide will be in relative lay speak so that everybody will get the picture the first time reading. This guide is intended to be used by members who have the tools required. Let me tell you...I live 20mi from Acura where I work, and if you mess up, you won't be able to drive your car until you fix it. BEWARE AND BE AWARE. The only reason I say this is because I attempted to remove my throttle body gasket and did not have my gasket scraper on hand, and I couldn't drive my car until the next day...after I went to work and hand scraped the TB.

The benefits of using a TSX manifold are straightforward...



Accord manifold on the left, TSX on the right.

As you can see, the TSX manifold is noticibly bigger in key places in order to flow as much air as possible.



TSX manifold on the left, Accord on the right.

The runners on the TSX are slightly longer than on the accord in order to boost low end power. The plenum on the TSX manifold is also notably larger than the accord's.

After installing the manifold, I noticed an IMMEDIATE gain. I don't think in terms of horsepower, rather response time. This manifold really opens up your powerband, especially in manual equipped cars. You'll notice with a stock manifold that it will take a long time to pick up in a lower gear. This effect is minimized with the TSX manifold, and you can reach your effective powerband quicker.

Ok so on to the guide!!

What you will need:
TSX manifold *(I used an 04 manifold)
beer
music
3/8" drive ratchet (flex head recommended, and 12" long is perfect)
3" extension for said ratchet (just in case)
Phillips screwdriver
10mm deep socket
12mm deep socket
14mm deep socket (just in case)
10mm wrench (flex head gear wrench preferred)
12mm wrench (same as above)
Gasket scraper
small hammer
needle nose pliers (90 degree bent preferred)
magnetic or plastic tray to hold bolts / nuts

FINALLY THE GUIDE!!

Start by removing your intake. Disconnect the IAT sensor, which is located on the intake. Remove the breather hose from the intake plenum. Remove the MAP sensor located on the manifold. Set this on a clean area with its screw. While the primary manifold is still attached, use a 12mm deep socket to loosen the two throttle body nuts and 2 throttle body bolts.

Disconnect the Throttle position sensor on the TB.



Remove the two 10mm bolts holding the throttle cable bracket to the manifold.

If the throttle body is not loose to pull on, GENTLY tap on the area where it connects to the intake with your hammer. DO NOT HIT IT ANYWHERE ELSE.



After you remove the throttle body, you may elect to remove the gasket...only do so if you have a TSX or accord gasket available, and a gasket scraper. Also have throttle plate cleaner available to clean up.

Take the two nuts that were on the throttle body and use them to take out the studs on the manifold. Note their positions and remove the studs. Put one nut on inverted and the other nut on top of it so it looks like a bolt head. Tighten this down with a wrench and ratchet, then use the ratchet to remove the stud. Repeat for the other stud.

Now the big part:



Before loosening the bolts holding the primary manifold to the secondary manifold (where my ratchet is), feel under the manifold for a bracket and a nut. There should be a 10 or 12mm nut(I can't remember offhand) securing the bracket to the manifold. Use a wrench to remove this nut. Now use your 12mm ratchet to remove the bolt/ nuts holding the primary manifold to the secondary.

You don't have to replace the metal gasket, so don't worry about it. You can replace this gasket with the P2R insulating gasket if desired.



Look on the back of the accord manifold. There is a rubber nipple on a vacuum port that is actually used on the TSX. Remove this nipple and install it on the TSX manifold before installation. You should be able to use this port if you wanted to hook up a boost/vacuum gauge. How do you like that??

You can go ahead and repeat the process in reverse to reinstall your new manifold. With all bolts and nuts, only tighten them 3/4 turn past contact. Do not over tighten any bolts on the manifold....you don't want to strip anything.


Ok so thats it, please let me know if there's anything that I missed. Also feel free to leave comments, I will be doing more DIY's in the future, and I would like your comments in order to make my DIY's better. I will do a DIY for the Hondata intake manifold gasket at a later time...I just got too anxious to do the manifold that I couldn't wait to get the hondata gasket.

Part numbers (as per Azn_Rice_man)

TSX Intake Manifold - 17110-RBB-000
TSX Bracket - 17132-RAC-U00
TSX Intake Manifold Gasket - 17132-RAA-A01

Happy installation!!

~Skip

**Update 9/15/06
There is a bracket that secures the intake manifold to the lower assemblywork. It can be found by looking in the "look here" area of a photo. You will need to remove this bracket when installing the TSX manifold, as it is too long to accomodate the new manifold. The new manifold is very light, and I did not find it necessary to install the TSX counterpart in my install. I have had no adverse effects by doing this, and I am pretty sure nothing will be hurt by not installing a TSX manifold bracket. Thanks to Azn_rice_man for pointing this out.
Hope this helps,
Sammy
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Old December 11th, 2008, 02:00 PM   #8
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i want a tsx IM. anyone selling one locally?!
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Old December 11th, 2008, 02:00 PM   #9
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It's a waste of money to swap a TSX intake manifold onto an accord. You'll see why if you open up the valve cover of the accord, and the tsx to compare. All the gains you see with the TSX have to do with the entire head assembly, and not just hte manifold alone.
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Old December 11th, 2008, 02:01 PM   #10
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I believe Adrian, ADI has an extra TSX intake manifold laying around. I gave it back to him when I did the engine swap.. Hit him up Tim.
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Old December 11th, 2008, 02:06 PM   #11
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thanks. i plan on doing other things besides the manifold, well see whats up. thanks though!
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Old December 11th, 2008, 05:13 PM   #12
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Quote:
Originally Posted by nighthawk04v6 View Post
It's a waste of money to swap a TSX intake manifold onto an accord. You'll see why if you open up the valve cover of the accord, and the tsx to compare. All the gains you see with the TSX have to do with the entire head assembly, and not just hte manifold alone.
3 Lobe cams as oppose to the 2 lobe cams on the accord


Quote:
Originally Posted by nighthawk04v6 View Post
I believe Adrian, ADI has an extra TSX intake manifold laying around. I gave it back to him when I did the engine swap.. Hit him up Tim.
thanks kiet, but yea had an extra one, sold it a long time ago along with all the extra parts i got back from u (thanks for that...lol)
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Old December 11th, 2008, 06:29 PM   #13
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Quote:
Originally Posted by nighthawk04v6 View Post
It's a waste of money to swap a TSX intake manifold onto an accord. You'll see why if you open up the valve cover of the accord, and the tsx to compare. All the gains you see with the TSX have to do with the entire head assembly, and not just hte manifold alone.
sorrry man, i think u r soo wrong, i installed the tsx im on my car and u can def feel a difference. if u had a four cylinder you could do it and see the difference. it has been dyno proven so sorrry that you think its a waste. for those four cyl guys do it, its worth it
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Old December 11th, 2008, 06:30 PM   #14
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thanks. i plan on doing other things besides the manifold, well see whats up. thanks though!
do the im man, car revs faster and breathes way easier. dont trust those v6 guys ahahahah
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Old December 11th, 2008, 10:32 PM   #15
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it does improve, but not that much, need to upgrade other stuff.
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Old December 12th, 2008, 09:41 AM   #16
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the main thing it improves on is throttle response throughout the entire RPM band, and yes it does increase power. but really the stock manifold is a bottle neck when paired up to a CAI or SRI. so yes there will be gains, but nothing outrageous. to get a big gain, do a head swap and k-pro it.
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Old December 12th, 2008, 10:16 AM   #17
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Yeah I'll confirm it adds a lil somethin somethin. Like the aboves have mentioned it's not like 10-15 hp or anything but it's definitely a noticable difference. I've got a dyno sheet but unfortunately it's with all other bolt on's as well.
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Old December 12th, 2008, 10:16 AM   #18
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Quote:
Originally Posted by mec33 View Post
sorrry man, i think u r soo wrong, i installed the tsx im on my car and u can def feel a difference. if u had a four cylinder you could do it and see the difference. it has been dyno proven so sorrry that you think its a waste. for those four cyl guys do it, its worth it
Quote:
Originally Posted by mec33 View Post
do the im man, car revs faster and breathes way easier. dont trust those v6 guys ahahahah
I'm not just the typical v6 guy, i've done complete overhauls on a variety of K-series engines and I'll tell you that the K24 in the accord isn't a vehicle to modify unless you do a complete overhaul of the engine. I'll be building a K24 complete long block outside of a car, and it's going to be displayed in our show room once I'm done.. Almost any vehicle will be beneficial with an increase sized intake manifold, however utilizing it to the fullest potential will only be possible of there isn't any other parts on the engine thats bottlenecking it. So yes, I agree there will be some gains, but is it worth it? coming from me, i'd say no its not unless you're planning on bigger upgrades to pair up with it.

Oh and btw I have a few K-series that i'm working on right now...
K20z3.. it's going to make over 240whp N/A. and a K24 long block, that will be fully built once I'm done.


Quote:
Originally Posted by ADI View Post
3 Lobe cams as oppose to the 2 lobe cams on the accord




thanks kiet, but yea had an extra one, sold it a long time ago along with all the extra parts i got back from u (thanks for that...lol)
you're welcome bud. =)
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Old December 12th, 2008, 10:19 AM   #19
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Quote:
Originally Posted by nighthawk04v6 View Post
I'm not just the typical v6 guy, i've done complete overhauls on a variety of K-series engines and I'll tell you that the K24 in the accord isn't a vehicle to modify unless you do a complete overhaul of the engine. I'll be building a K24 complete long block outside of a car, and it's going to be displayed in our show room once I'm done.. Almost any vehicle will be beneficial with an increase sized intake manifold, however utilizing it to the fullest potential will only be possible of there isn't any other parts on the engine thats bottlenecking it. So yes, I agree there will be some gains, but is it worth it? coming from me, i'd say no its not unless you're planning on bigger upgrades to pair up with it.

Oh and btw I have a few K-series that i'm working on right now...
K20z3.. it's going to make over 240whp N/A. and a K24 long block, that will be fully built once I'm done.




you're welcome bud. =)

It's not that expensive of a mod so I wouldn't say it's worthless but it's actually the least expensive bolt on for the K24.
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Old December 12th, 2008, 11:01 AM   #20
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Quote:
Originally Posted by nighthawk04v6 View Post
I'm not just the typical v6 guy, i've done complete overhauls on a variety of K-series engines and I'll tell you that the K24 in the accord isn't a vehicle to modify unless you do a complete overhaul of the engine. I'll be building a K24 complete long block outside of a car, and it's going to be displayed in our show room once I'm done.. Almost any vehicle will be beneficial with an increase sized intake manifold, however utilizing it to the fullest potential will only be possible of there isn't any other parts on the engine thats bottlenecking it. So yes, I agree there will be some gains, but is it worth it? coming from me, i'd say no its not unless you're planning on bigger upgrades to pair up with it.

Oh and btw I have a few K-series that i'm working on right now...
K20z3.. it's going to make over 240whp N/A. and a K24 long block, that will be fully built once I'm done.
completely right, with a 3 lobe cam design we would see much more of a gain. but as abailey4 pointed out it is a cheap mod, so i think it's worth it as well.

how does the k20z3 head bolt up to the k24a4 block? don't you need to change internals?
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Old December 18th, 2008, 06:47 AM   #21
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Here is the answer to your question http://gen7accord.net/forums/viewtopic.php?t=3239


Quote:
Originally Posted by Skippy
Welcome to the new TSX intake manifold installation guide!

Preface: This guide has some history that needs to be addressed first and foremost. Outersquare posted an introduction to swapping over to a TSX intake manifold on an 03-05 Accord. His instructions involved buying a Haynes manual and performing the swap. I decided to write a DIY with pictures and a complete list of all materials and tools needed to get the information out to you for free. Later on, BlackDrgnAccord approached me and stated that he’d successfully swapped an 06 TSX manifold on his 06+ Accord. He asked me to include his swap in my DIY. A bunch of time passed where I couldn’t complete it, and here is the final product. Credit for this DIY goes to Outersquare, Skippy, and BlackDrgnAccord. Skippy is the author of the 03-05 DIY, and gratefully accepts and integrates information from BlackDrgnAccord regarding the 06+ manifold swap. Also, thanks to everybody who noted problems, tips, and tricks to make swapping easier. Your information, questions, problems, and concerns have been taken care of in version 2 of this DIY.

Disclaimer: This is a DIY guide. By using this guide you agree that you have obtained ALL necessary parts and have ON HAND all tools necessary to complete the swap. You agree to hold harmless myself, Outersquare, and BlackDrgnAccord of any damage caused by this modification or your installation. If you do not follow the directions, you don’t have the right to complain. If you have a question, feel free to ask, but PLEASE READ OVER THE GUIDE SO YOU DON’T ASK A REDUNDANT QUESTION.

Intellectual property notice: I consider this guide to be the intellectual property of Myself (Skippy), and BlackDrgnAccord, with credit for the idea and introduction being to Outersquare. We worked hard to bring you this information, and I worked hard compiling all of it and making it user friendly. If you want to copy this DIY to your forum, please GIVE US CREDIT.

Have a problem?: If you encounter a problem with your installation, I (Skippy) am more than happy to help you out. I have performed several TSX manifold swaps including 06+ applications. You may contact me on G7A by PM, or by AIM: Shad0wk24. The O is a zero. Please re-read the guide before contacting me directly though…

So here’s what you’ve been waiting for…The TSX Intake manifold swap Version 2.0. This guide contains information to swapping your 7th generation Accord’s intake manifold over to a TSX primary intake manifold. Why do this?? Here’s the difference between manifolds. The accord manifold is on the left, and the TSX is on the right:



Here’s another picture comparing the two manifolds. The TSX manifold is on the left, and the accord manifold is on the right:


The runners on the TSX manifold are wider, and the plenum is much larger. This equates to better throttle response and increased power. How much power? I don’t know, I didn’t get dyno’d before and after to see. Anybody who has swapped will tell you that the pickup and response of their vehicles has noticeably increased.

PRE-GUIDE AND PARTS LIST

This guide combines the installation instructions for both 03-05 and 06+ manifold swaps. The designation is made where ever the instructions differ drastically from the standard 03-05 manifold swap.

Why are the swaps different? Acura made changes to the intake manifold for the 2006 model. 03-05 accords have an idle air control valve and therefore need a cutout in the intake manifold to allow airflow through the IACV. The 2006 Accord features the introduction of the Electronic Throttle Control system which eliminates the IACV. The 2004-2005 Acura TSX has the IACV slot present although no TSX has ever featured an IACV. In 2006, the same year as the Accord switched to ETC, the TSX manifold changed design.

What this means to you: If you own a 2003-2005 Accord, you must use the 04-05 TSX intake manifold. If you own a 2006+ Accord, you must use the 06+ TSX intake manifold.

Parts List:

For 2003-2005 Accords:

TSX Intake Manifold - 17110-RBB-000
TSX Bracket - 17132-RAC-U00
Accord Throttle Body Gasket – 16176-RAA-A01

For 06+ Accords:

TSX Intake Manifold - 17110-RBB-A00
TSX Bracket - 17132-RAC-U00
Accord Throttle Body Gasket –PART NUMBER NEEDED
2003 Accord rubber sealing cap –PART NUMBER NEEDED

Notes on parts: The Accord and TSX use a bracket to stabilize the intake manifold. You may choose to buy the TSX bracket and use it to stabilize your new manifold. I for one did not do this, and I’ve never had a problem. The manifold is cast aluminum and isn’t going anywhere in my opinion. If you wish to use the new bracket, the part number is provided.

Tools needed for installation

3/8" drive ratchet (flex head recommended, and 12" long is perfect)
3" extension for said ratchet (just in case)
Phillips screwdriver
10mm deep socket
12mm deep socket
14mm deep socket (just in case)
10mm wrench (flex head gear wrench preferred)
12mm wrench (same as above)
Gasket scraper
Brake cleaner
small hammer
needle nose pliers (90 degree bent preferred)
magnetic or plastic tray to hold bolts / nuts


ON TO THE GUIDE!

Start by removing your intake. Disconnect the IAT sensor, which is located on the intake. Remove the breather hose from the intake plenum. The MAP sensor is secured to the intake manifold with a Phillips head bolt. Remove it and place it somewhere clean. Remove the 10mm bolt holding on the L shaped wire harness on the front of the intake manifold. Unplug the large connector coming up from the bottom. Remember it’s there when you get done!!

Next, remove the two 10mm bolts holding the throttle cable bracket to the manifold.



Take care to remember which of these is shorter, as they will need to go back into their respective holes on reinstallation. This does not apply to 2006+ models since they don't have throttle cables!

Disconnect all electronics from the throttle body. This includes the Throttle position sensor and Idle Air Control Valve (03-05). 06+ people need only disconnect the large electrical input harness. You may find while removing the throttle body later that the coolant lines attached to the throttle body are a PITA to work with. If it comes to this, you may remove them while swapping. Make sure that you shove a bolt into the hose to prevent excess coolant leakage. If you don’t have a bolt handy, there will most likely be one of the correct diameter shortly as you start to take other things apart.

The next step is the most annoying part of the process. Feel underneath the manifold for the stud that holds the intake manifold and frame bracket that secures it. You will feel a 12mm nut. Gingerly insert a wrench and remove this nut. Remember, the nut is upside down in relation to you, so you’ll have to turn the wrench clockwise .

There are two 12mm nuts and 2 12mm bolts holding the throttle body to the intake manifold. Remove the nuts and bolts. Using your hammer, GENTLY tap on the throttle body where it meets the manifold. If this does not loosen the throttle body, KEEP DOING IT. If all else fails, GENTLY tap the throttle body on the lip where the intake attaches…just be REALLY CAREFUL.

Remove the throttle body. Be careful to make sure that the throttle body is fully moveable (no part of the gasket is still stuck), or else it will tear. This will necessitate the need to scrape the surface clean and clean it meticulously…



This is what removal should look like. Notice that the gasket is still firmly attached to the throttle body.

Next, take one of the two throttle body nuts you just removed and put it on one of the TB studs backwards about half way down. Take the other nut and put it on right-side-up over the first nut so that they make a sandwich. Using your wrench and ratchet (or two wrenches), tighten the two nuts together. Then, use your ratchet on the top nut and remove the stud from the manifold while noting it’s position. Cool trick, eh? Do the same for the other stud and set them aside.

Remove the 12mm nuts holding the primary intake manifold to the injector base behind it.



After this, remove the primary manifold. Swap over the bracket stud if you intend to install the new TSX intake manifold bracket. You will NOT be able to re-use the stock bracket

This is where the manifold swaps differ, so I’ll write the steps according to each application separately:

2003-2005:

After removing the manifold, you’ll find a rubber sealing cap (or a hose) attached to the back of your manifold. You will re-use this on the new manifold. A vacuum leak will result if you do not swap this hose or sealing cap. Swap it over immediately after removing the stock manifold to make sure you don’t forget later.



2006+ models:

Remove the intake manifold and attached resonator box. Don’t do anything else with it…there’s nothing special about it. MAKE SURE YOU INSTALL THE RUBBER SEALING CAP THAT I TOLD YOU THAT YOU NEEDED. If you don’t, you WILL have a vacuum leak and your car will idle erratically and cut out on you. In a pinch, you can find some hose and make a cap by cutting a length, burning one end shut, and then placing the open end over the port on the back of the manifold.





Reassembly for ALL models

Reassembly is straightforward. You do not need to replace the metal gasket that goes between the primary intake manifold and injector base. If you’re attempting to avoid heatsoak (which means you’re probably one of the tin-foil hat people), you can opt to install a P2R (Power Rev Racing) insulating gasket in its place. Please note that this install does not cover the use of a Hondata heatshield gasket. Installation of that gasket requires injector base removal, which is not covered in this guide. Install the manifold bracket (if desired), and then install the new manifold. Tighten all bolts ¾ of a turn after they make contact. Reinstall the throttle body and connect the coolant lines if you disconnected them. Reinstall the throttle cable bracket (2003-2005). Reinstall the Electrical input/output harness to the throttle body (2006+) Reinstall the MAP sensor and L harness on the manifold. Remember the large connector underneath the manifold from when you disconnected it!! Check your work and start the car. Test drive and then check your work again.


That’s it folks! Thanks for dealing with me taking so long with reproducing this guide..I was REALLY busy with school and work. Hopefully the wait has paid off for you!

~Skippy
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