Guys, the modding bug is disturbing me and I think the following will be my LAST (yes, I'm sure this time) on my TSX. I'm so hook on the new BMW 135i, but I'm not getting that car in their 1st year production, and of course, everything is $$$. We will see.

So, what drive me into this mod is... WANT. I have a 2005 5AT, and I guess you know what that means; NO HONDATA REFLASH. After 2 years, w/ almost everything has been replaced on my car, is time for the ECU. I have recently purchase a 2004 5AT ECU (Thanks Jay98), and on top of that, I've got myself a 2006 Intake Manifold and Throttle body, due to its bigger size (64mm VS 60mm), I believe there will be gain (Thanks Chad/TodaSi).

My original plan was, get the ECU reflash, get the IM/TB and call it a day. Well, things change. After a long research, not only I will send my IM/TB to big bored (68mm or 71mm depends on the machinary), but I'm planning to get the following items to enhance my intake.

1. Hondata IM Gasket (Will bored to the same size as the OD on IM).
Benefit - Lower temp; this is a well known product and I guess no explanation needed.

2. P2R Throttle Body spacer (Will bored to the same size as the OD on TB).
Benefit - Bigger air volume. Dyno shown positive gain on 06si, I will try and dyno it after and see the result, but not the TB spacer itself.


3. P2R Throttle Body Gasket - NOT sure if I need this IF I had the TB Spacer
Benefit - Lower temp; same idea as Hondata IM Gasket. Currently they have it for 06Si, I'm not sure if that will fit the TSX.


4. P2R Intake Manifold Extend Runner - Under development, should be out in next month.
Benefit - Increase air volume in IM. Since the TSX IM does not as a cover (as PRC K20), we can't use the Intake Plenum. There's alot of samples from the TL forum, where they get solid gain out of this.

5. BPi Velocity Stack + K&N 6" filter - 6" opening, down to 3" merge w/ CAI
Benefit - Increase air input, smoother the suck-in air, create velocity.
What amazed me was I'm getting this product. I've known this for awhile but all I thought was a gimmick. When I was researching on this item, it wasn't even this brand. I got drawn to a Civic or Honda-tech forum, where people discussing this item in 2002~! WOW, back then there's a well-known stack that out-perform all replica and e-bay stack w/ dyno prove. This guy, Brain P., was a forum member, got into discussion, and he was an enginner. He started the flow analysis and all that and create this better product w/ dyno prove. What draws my attention was, he almost disclosed ALL his analysis w/ mathematic equation before he created/produce this product. Anyways, you get the idea. ***Not promoting this item as I haven't use it, just a brief on why I'm trying it.



This is how it looks like w/ the a 6" K&N filter.


So here we go, this is my TO DO list, and I'm waiting the product to arrive. After the bore and ECU reflash, I will have to book for dyno. Depends on the price, I will probably chop it into 3; which is, Base Dyno, + Hondata, + All Intake Enhancement.

My 2006 dyno is around 176whp/152wtq. Items were added on my car back then included. DC Header, Injen CAI, Magnaflow High-flow Cat, UR Pulleys, and SunAutomobile Grounding Kit + Voltage Stabilizer.

Since then I have added Greddy SP2 exhaust, BC RSD coilover, Ingalls ETD, replaced my battery w. Optima RT, and paint my IM cover... lol So this will be my base dyno for now.

I need your opinions on the intake enhancement.

1. Waste of $$$?
2. With the Hondata reflash, according to what I have + the up coming mod, will I be running too rich or too lean (increase air-flow but fuel map were the same?)
3. Estimate increase in whp/wtq on the intake enhancement. (I'm guessing 5-8whp for all that.)
4. Any inputs are welcome.

Happy modding.
Jason

 

jason, you know i'm going to tell you to go for it

 

lol. hell, why not. it's your car and money!

i put an order in for the p2r spacker/TB gaskets too. all the TL members who did this mod swear by it and say they can at least feel some additional low-end torque. for $100 and change, i say sure.

 

Hey chuson, I did the TB spacer and gasket mod on my 05 using the 06 si parts already. I haven't had time to put up an install + review thread, but fitment is just about perfect, install was relatively easy (taking bolts off were a bitch). But it fits about exactly.

Power? There is a positive difference that I felt, and I've been driving it around for 4 days, so hopefully the ECU has figured out that it has a new part. Don't get me wrong, its less power than an intake, but there's just a little more there than I am used to feeling throughout the powerband.

 

Thanks for everyone input.

CG Earl, so I guess you confirm the 06 Si TB is similar to the TSX TB, nice. For my intake enhancement mod, I do not expect any crazy whp/wtq gain, instead, I'm focusing to sharpen the throtte response. I would like to see if these mods can give me back the immediate throttle response of a Comptech Icebox, yet remain the CAI high-rpm gain characteristic.

I'm a bit concern on the A/F ratio, not sure will it lean out too much on my car... Any input?

 

awesome, that's some good feedback. i guess this confirms what all the TL members feel, and what i've read around for the civic Si folks who did this mod.

i'm looking forward to getting mine in the mail.

 

i'm looking forward to mine too! did you get the gaskets? that's what the holdup is on my order as far as i know

 

Which gasket? I think our vendor Josh has a combo for TSX for $150 shipped. That's incl. the P2R IM/TB Gasket, and TB Spacer. You can also order it directly on P2R I guess.

Anyone knows the differences of Hondata or P2R IM Gasket? I guess they should be similar (Design & Material wise)...

 

^^it depends. I think the 06+ TSX-specific gaskets are still delayed. Since I ordered the 06+ Civic SI spacer and gasket, mine were ready to go immediately. I didn't use excelerate though.

Chuson, in regards to your questions about the spacer and gaskets, I honestly don't know how A/F is affected, but I don't think its out of parameters for the TSX ECU. In terms of throttle response, I think it does "sharpen" it a little bit. If anything, torque is improved ever so slightly, so that might be the response I'm feeling after our transmissions transmit it to the wheels.

I don't want to get everyone's hopes up too much. This is no supercharger, but there is a little bit more power and response....you honestly have to know your cars powerband to feel it, but for me and only me so far, its there.

With that said, I still think the greatest contribution to overall response and freeing up power were lightweight rims and lightweight tires. I'm hoping this doesn't cloud my judgement on whether the spacer makes a difference.

 

I'm pretty interested in this. Where did you read they are coming out with this? Any K-series engines with this mod?

 

yep, i also ordered the TB gaskets, otherwise i think the added volume of the spacer is negated by the transfer of heat there (which is supposed to happen easily).

excelerate said they'll be ready the second week of january. being that it was the holidays the first week, i'm wondering if we'll see them this week (more like the third).

 

^^on heat transfer, it is an absolute MUST you do the TB coolant bypass mod. The spacer and gaskets alone will not keep the TB cool.

I will do the bypass mod shortly. I definitely could see how the spacer and 2 gaskets can keep the tb cool.

 

I e-mail Sean @ P2R regarding on the IM Plenum, and he told me about this extended runner that's under development. I should get an e-mail from him by Monday and see if there's any prototype was made.

My A/F question was based on all P2R products + bored out 06 IM & TB + BPi Stack. As a whole, I think it will make a bigger differences than just the TB Spacer. That BPi stack is pair with a 6 INCHES filter, and force into the 3" tube. Where as the regular intake filter are only 3".

I got that too for the up coming summer.

I've done the TB coolant bypass mod, didn't notice much differences in power but definity NOT as hot as before.

 

was there something about the TB coolant bypass mod not being recommended for people who live in colder areas? i'll have to search for that thread.

 

i think most people came to the conclusion that it'd have to be REALLY cold for it to matter. had some canadian users chime in that they had no problems whatsoever, even in winter.

 

I say its a must because when I checked on the TB with the spacer and gaskets, it was just as hot as everything else. I haven't done the TB bypass mod yet, but I suspect I can bring that temperature down even more once I completely isolate the TB from manifold and coolant lines.

 

I'm Canadian, usual temps in winter is 5c to -20c (with windshield), and I don't have a problem.

 

I would not bother with those mods and put that lil bit of money towards the 135i, because that thing is going to be bad ass.....

 

All these *little intake enhacement mod are relatively cheap (excl. IM/TB Bored), total will be around $300, you never know what how it turns out until you invest in it.

Is not that easy if I'm paying for it... consider a nicely equip (w/ the option/package I want) 135i will be around $41K USD in US, and for the same car will be around $56K CDN in Canada, that's a big rip-off when the currency are on parity.

 

Glad it worked out for you

Chuson, do it up!

 

Don't want to hijack Chuson's thread anymore than I have, but thanks for the help! Your TB pics pushed me over the edge. There is definitely more power there.

chuson, please keep this thread up to date, I'm pretty interested in what you are going to do....

 

Horro, got a picture of your bored out IM too???

I've also seen pix of Horro's big bored 06 TB pix, it looks impressive, let me post it up here. Yeh, I'm going to let this project fly for sure, as I have order all these items already. This project along w/ dyno should be done in March.

In case anyone interested, this is a bored out 06 TB from Horro.

 

No pic of it, but I will take one when I get the TB spacer.

 

only if there was a 65mm p2r spacer of the cable driven TB

 

The P2R does HAVE a TB Spacer to fit 06+ Si, which is identical to the 06TSX. The size is 64mm, so when I bored my TB, I will do it on the spacer too, to about 68mm.

 

forgot one main thing. idle air slot. ya'll don't have them.


i got an accord.


MAN why doesn't my sig show up!? i have my info in there lol

 

^^^
Idle Air slot was on the 06 SI TB you mean? I'm just using the 06 SI TB Gasket, my TB is still a 06 TSX so I guess it should be fine?

 

You mentioned it in the other thread. Please elaborate on its importance, because I'm ignorant when it comes to this.

Relative to the use of the spacer on an 05 TSX, I have seen no change in the idling of my car.

 

the thing i'm talking about doesn't effect the TSX at all.

 

I read this somewhere, and for the life of me i don't know where anymore. Could have been on 8thcivic, k20, etc. We don't have an idle control valve, but we have a port for it for some reason. You can see it on the manifold, but there is nothing for it on the TB. its either an oversight or acura didn't feel like fixing it until 06.

Like you said, I don't think it affects the operation of the spacer or gaskets.

 

I picked up my 2004 5AT ECU today @ UPS. Wow, it's light. Does anyone knows the weight of the ECU?

Mine seems empty inside even with the steel case. I got it from a high rep member here, Jay98. I have never see/touch the TSX ECU b4 so I'm not sure about the weight.

 

My whole package out to Hondata was 2lbs...including ECU, immobilizer, key & packaging.

Now that you got the 04 ECU...SEND IT OUT!!

 

yeah no affect on the TSX but what i was saying was that on the accord there is a slot on the TB AND the IM and that could possibly cause Idle problems.


man i'm confused now haha.

 

I'm waiting for all my other parts to arrive, besides, I'm looking for a local mechanic shop that can do a good bore job on my TB/IM. Or else I will send it to Kings Motorsport for that, which I don't really want to. I will see.

I'm not in a hurry to send the ECU to Hondata, because the weather out there does not allow me to test the 7.6K redline yet; and I still have to do a baseline dyno b4 the Hondata ECU Reflash.

 

Old thread, and I can't believe it's NOT done yet.

My 06 Intake Manifold, Throttle Body, TB Gasket and Spacer has sent to MaxBore.com 2 weeks ago for the service. Original 64mm will bore to 68mm and taper to 70mm in the opening. Should get it back by the end of next week, will update afterwards.

 

You may want to verify with Jorge (maxbore) that you want the maninfold opening to be slightly larger than the TB ~ 1mm or so. This is to accommodate the potential slight shift in alignment during the TB installation.

 

^^ Johnny! Nice to see you man. Haven't see you around for awhile

 

Hello Kenny. It's nice to be back.

 

Thanks Johnny. Without your help I will run into trouble...

 

Update on the process...

I just received everything back and I'm excited, hopefully I have time to install all this next week, but before and after dyno might not be avaliable... I will see.
















I still have to order the Velocity stack and 6" K&N filter, if I can tell a differences on my butt, I'm happy lol.