rmpage

I wonder if that would enlarge the intake pipe by so much that gas velocity would lower. So then the intake charge would flow into the manifold with less inertia, with the lower-pressure air robbing a little power.

edit: really confusing sentence

kangjin

Did anyone that did this mod perform the ECM/PCM Idle Learn Procedure listed on page 11-230 of the Helm manual? I quote:

"The idle learn procedure must be done so the ECM/PCM can learn the engine idle characteristics.

Do the idle learn procedure whenever you do any of these actions:
-The ECM/PCM is replaced.
-The ECM/PCM is reset.
-The throttle body is replaced."

I can post the actual procedure if anyone wants to try it.

~~

I bought xizor's bored tb a long time ago and tried installing it when i installed the s/c, and found the same problems he did, so I swapped back the stock one.

I think i'll try out the procedure this weekend with the bored tb to see if it calms the idle down.

Here's the procedure:
"1. Make sure all electrical items are off.
2. Do the ECM/PCM RESET in the CLEAR MENU with the HDS.
3. Turn the ignition switch ON (II) and wait for 2 seconds.
4. Start the engine, and hold it at 3,000 rpm with no load (in Park or neutral) until the radiator fan comes on, or until the engine coolant temperature reaches 194 degrees F.
5. Let the engine idle for about 5 minutes with the throttle fully closed.
NOTE: If the radiator fan comes on, do not include its running time in the 5 minutes."

I wonder if step 2 is the same as just pulling the ECU fuse for a couple minutes?

shaang

Just get a 06' TB and IM like me and TSX2345, its 64mm just like a TL.

jjkim325

eh? and 06 IM fits perfectly?

Naskhan

do you have an 06 ecu?

rmpage

how did you manage this?

TSX2345

ECU is not required. '06 IM and TB are direct bolt-on's

JTso

iTrader: (2)

Did you experience any problem with idle like others have reported with the bored TB?

TSX2345

None!

JTso

iTrader: (2)

Any gain?

rmpage

On second thought that makes more sense than it did before. Do you know what is new in the 06 manifold?

TSX2345

Hondata

From Hondata's site:

If you are going to build a K series engine, the best parts to start with are those from the 06 TSX.

The 06 TSX has the following improvements:

Increased intake flow:

Intake valve + 1 mm oversize
Intake cam High lift lobe with 0.9 mm more lift and 12 degrees more duration
Throttle body increased from 60-64mm
Radius on some intake pipes increased from 70-80mm

TSX2345

Haven't dyno'd yet

godfather2

sounds interesting ... keep me posted guys, this might be my next mod.

aaronng

Do you have a price on the IM and 06' TB? I'd be wanting to get one shipped all the way here to Australia.

rmpage

Did you port match the head for the new intake runner size bore size?

aaronng

I think he meant the rubber intake arm. No way the runners have an 80mm diameter or radius.

rmpage

I was wondering that (and the plural noun "pipes" confused me), but I only ask because if the '06 IM doesn't have an increased runner bore then there isn't any point in swapping it with the '04 IM, which you can easily port match to a bored TB with a Dremel. Might as well just get your TB bored and call it a day.

aaronng

I need a price estimate on the 06' TSX 66mm throttle body and rubber intake arm. Can anyone help me with that? Probably something from the junkyard/wreckers would be best.

jjkim325

Put a search on it on ebay... looks like getting it brand spanking new will cost you over 500 bux. I got IM and throttlebody for 04 for 170 on ebay... so just look around.

aaronng

Looks like I'll have to keep watching out on ebay. At the moment, there is only an 04' throttle body for $200. No IM even!

jjkim325

Yeah.... I kinda got really lucky... I've been looking for a TB for almost a year... haha.
Well didn't have the money a year back anyhow so I guess it worked out.

shaang

It looks like where the 06' IM runners meet the head they are identical to an 04 as far as opening sizes. This is from a brief look we took as we swapped the parts on. However, when you feel inside the runners, you will notice a more 'hollowed' out feel and slightly differnt inner shape compared to the runners on the IM of an 04' . Also, the part numbers for the 04' and 06' IM's are slightly different. Lastly, its easier to swap both the IM and TB at the same time due to not having to separate them from each other. You'll also need the intake arm from on 06' if you are running the stock intake or the Comptech Icebox, but not if you are using the Injen, K&N, or Fujita.

shaang

When I have some time, I will redyno at Church's to see if the 06' parts and other recent mods add any power.

RaCeR4LiFe022

So what can u do with the 06 throttle body? can u bore that?
and would i have to bore the IM too? and there shouldnt be any ECU problems right?

outersquare

did anyone address why hondata's K24 article showed minimal gain with a larger TB as opposed to jtso's?

JTso

iTrader: (2)

The two TB are different. One is bored TSX TB. The other is stock TL TB. The inlet size and the actual bore could be different, not to mention the other engine mods are also different. The result still could be different even the extact TB is used. For example, my UR pulleys yields much lower hp than Zasker1's UR pulley result.

jdmturtleracin

just did my 2k6 TB and IA on my 2k5 (no porting of IM)... i having the same idle problems as xivor did.... gonna recheck all my work tomorrow morning...

xavior... are you an 2k5 or an 2k4?

i think it might be the crappy ecu in the 2k5 that are giving us this high idle problem.

i might try the PCM reset...but need to find myself a scantool to play around with that...

aaronng

Did you carry out the idle learn procedure?

jdmturtleracin

haven't carried out the idle learn yet....has anyone done the idle learn yet???

don't you need a scan too to do the idle learn???

xizor

hmm, are you referring to me? if so I had a 2004

hrj

iTrader: (1)

King MS sell skunk2 TB..
http://www.kingmotorsports.com/category.aspx?cat=61

jdmturtleracin

opps...my bad ...my autistic ass wrote it wrong....

btw...throwing a cel now....

got the code checked out by a buddy at acura

intake leak and idling too high...

we checked the volt coming out of the throttle body and seem to be running higher than normal. idle is suppose to be between .49-.51 now it's showing .69-.75, that's why the idle is higher...

he showed me a trick to see if it's the gasket leaking...going to perform that test tonight to see what the situation is...

anyone else with the 06 throttle body on there car, which way did you run the coolant lines??? since the 05 one is in the back and one on the side, and the 06 ones have both coolants on the side... afraid the car might start to over heat while idling too long if they are backwards....

TSX2345

I have the 06 TB & IM no CEL, no problems

aaronng

The idle learn procedure supposedly requires an input by the Acura diagnostic tool. Why not fix the leak first, and then get your buddy to initiate the idle learn procedure for you? Then just let it sit there idling at warm to relearn. That could be why the TB voltage is higher. It still hasn't learnt the new idle voltage.

JTso

iTrader: (2)

You may need to adjust the throttle plate position. Note the adjustment screws. You can also use a scan tool to monitor the % of opening during idle.

shaang

I think the key is to swap the 06' TB and 06' IM together. That's what me and TSX2345 did, no cel's, idling problems, etc...

JTso

iTrader: (2)

I'm still curious about the gain with the 06 TB and IM setup. Any testing results?

shaang

Sorry, haven't the time to re-dyno yet... As soon as I do I'll let you guys know.

TSX2345

Haven't had the opportunity to go and dyno yet.

Shaang when we gonna go and hit the dyno?