Greetings to all

Last saturday I installed the RT Cat and after some runs I definitely said WOW!!
Response is great and I notice that when WOT the rpms stay put on gear change!
The car feels smooth!!!

Next weekend I will change my flywheel for the Comptech one and install a new oem clutch kit to replace the Exedy Stage I clutch and flywheel that I currently have.
Someone is selling me an LSD Quaife #QDF9U1. If that fits I'am planing is installed it too.

Thanks to all

 

How much louder did the car get?

 

Much when WOT, but quiet at the highway when 65mph

 

Congrats!

 

Why are you getting rid of the Exedy setup?

 

how much and where did you get the RT cat from?

 

1. Lots of sound from engine into the transmission. That is because Exedy flywheel has a lot of holes in it and the bussing sound pass by.
2. Problems with the bearing. I change already 2 times.

 

Congrats, get us some dyno's!!!

 

I was pretty close to getting the excedy setup, but backed out last minute. Did the flywheel at least give you better throttle response? How much harder was the clutch pedal?

I believe epgonzalez is/was also running the excedy setup, but he doesn't reply to PM's or give any feedback if you ask him about it. He's supposively running the CRV 5.0 Final Drive as well.

You might as well get some RSX-S gears while the tranny is down. The ratios are better suited for K-pro'ed TSX's and makes the driving twice as fun.

 

What current mods are on your car? I am debating whether to just get a testpipe(no restrictions and no smog tests in FL) or keeping it legal with a RT cat.

 

If you don't have atleast 50k miles on your TSX, technically it isn't legal to put a new cat on your car. Nothing a sledge can't manage though.

 

Haha. But it's all good because I live in Key West, Florida......no one around my city could give two damns about that. The cops down here don't know jack about cars anyways. This boosted RSX-S got pulled over once for speeding, and he told the cop something along the lines of "I was clearing out my injectors...they are broken.." He bought it and let him go.

Anyways, new cat, or test pipe

 

The main reason most here have stuck with a high-flow cat is due to the tendancy for the TSX to run lean without proper tuning. With that said, you're unlikely to benefit from a test pipe.

 

Ah, then RT cat it is

 

1. The response on the throttle is great, quick rpms!!
2. Decceleration makes this buzzing sound because of the light flywheel.
3. Pedal is a little harder than stock.

 

Modifications:

Comptech Icebox, Header, Catback, ShortShifter, front and rear sw bars.
Hondata Reflash and gastket.
Tanabe sustec suspension.
RT Cat.

I did have the Injen CAI and when I changed to Comptech IB, response below 3k rpms are better.
The RT Cat is great!!!

 

I have Dynos from stock and IHE and the change is as follows:

1. Jan 2004 full stock at 86deg F --> 165whp
2. feb 2005 Injen CAI, Hondata Gastket, Comptech header and Comptech ex at 89def F -- > 186whp

After the installation of the clutch/flywheel and LSD I will go to the same Dyno and test my config for comparisons ok.

Take care and thanks to all for you feedback!!!

 

I get it directly from RT because nobody ships to Puerto Rico.
It was $325.00 with the installation kit plus shipping.
The installation was great and I used no gastkets, just the installation kit.
Performance wise I really notice the difference with it. Rolling on 1st at 10 mph when I floored, the wheels spin like crazy
Also I notice that when WOT the rpms drop in gears is less.

Today we test rolling acceleration at 20mph on a close road with my friend 2006 SI and the difference is HUGE. After the 70mph the car keeps pulling like crazy so I cannot imagine the sound it will make if I had the Injen CAI.

I'm planning on getting the car to the dyno after I install the clutch and LSD so I will keep everyone here informed. The next modifications will be the 64mm Throttle body and the UR pullies.

Take care

 

Have any idea what your A/F is right now?

The Quaife should fit just fine. There was a TSX owner in the TOV boards that got one installed. On this board, TSX007 has a ITR LSD and I believe epgonzalez has the Quaife as well.

 

Went to the Dyno today and it was like this:

Run Conditions 90.55 F, 30.16 in-Hg, Humidity 59% SAE 1.01

Max Power = 189.11, Max Torque = 161.70 AF 13.02

Next run will be with the Injen CAI

 

Is that the A:F at 7k RPM? The ECU starts dumping in fuel when it hits VTEC, so the engine runs rich at high RPMs. Under VTEC it will run much leaner.

 

Hey rmpage, I am curious if I am running too rich or too lean. I have AEM intake and Comptech Header/Exhaust with RT Cat. I think I am the ONLY one who has had CEL come on 3 times since I put the RT Cat. in, all 3 times the code was P0420 (2nd O2 sensor/Cat. converter) that triggered it. I also double up on the gaskets from rear side of Cat. to exhaust, no exhaust leaks whatso ever. After the second light I had Acura mech. replace the 2nd O2 sensor already. After a week CEL came on again so it cannot be O2 sensor. All 3 times CEL came on while on the highway going approx. 120km/hr.

I have sent my RT Cat. back in as a defect and am getting a brand new one from RT. Will Hondata Reflash balance out the A/F mixture?

 

I can't answer that because I don't know.

I'm not sure if A:F plays a part on the P0420 code anyway...the secondary O2 sensor exists to diagnose a catalyst failure and is a narrowband unit that doesn't read A:F. The primary O2 sensor is a narrowband sensor that governs fuel mixture to maintain the A:F prescribed by the ECU.

 

According to Hondata, nothing was touched in closed-loop mode, so the ECU is still maintaining the standard 14.7:1 A/F. The same CEL with 2 different secondary O2 sensor means the CAT is defective or inefficient.

 

Thanks for the info! If the secondary O2 sensor is strictly to monitor the Cat. then for sure its a defective one as I have got the same P0420 code from 2 different O2 sensor. I thought it monitors the A:F as well.

According to RT, I am the first with this problem. Well hope the replacement is fine.

 

And what's your a/f ratio? As JTso mentioned in closed loop mode (light throttle) your car will be close to 14.7. When you get on the throttle, you'll go into open loop mode and you will definitely will run richer. That is perfectly normal.

I've also been getting the 0420 CEL with my cat. It seems like in warm weather it has a tendency to throw it more often. If you do some more research, you'll see that quite a few of us have been getting it with the RT cat recently. The only solution that I've heard of is what DrkAngel did. He put in an anti fouler (not sure on spelling) and he said that he stopped getting the CELs after that. The anti fouler is kind of like a spacer that moves the O2 sensor further away from the cat so it sees less air.

 

^^It is a cheap solution as well.

 

Yup, it's probably the easiest method. That's what I'll be using with my test pipe.

 

your switching to a test pipe

 

You doing more compression then? I thought a test pipe was only effective with more compression..?

 

Can't wait to hear your impressions of the test pipe setup. Do you have something to monitor your a/f ratio real time?

FYI, when comparing my wideband PLX with the reading that my Brockway R920 gets from the ECU, I've found that the ECU reads about .5 lower (richer) than the PLX does. Just thought I would let you know since I know you run software to read from the ECU via the ODBII port.

 

I'm in the process of making another A-pipe with matching flex pipe size and a cat-less extension pipe - Poor man's race header.
Not sure how well it works with the existing setup. Dyno testing will be done to verify.

I do have a computer based scan tool that reads the OEM wideband O2 sensor outputs and provides data logging of various parameters (rpm, coolant temp, air temp, ignition timing. etc.). I was going to add another O2 bung to hook up my standalone wideband setup but I want to see what the ECU is registering with the stock O2 sensor.

 

JT, what is the software you are running to read the values from the ODBII?

 

http://www.autoenginuity.com/

 

Hey JTso, is the scan tool really good? Accurate? Is has a "SpeedTracer" that also measure 1/4 mile, 1/8mile times as well as SAE HP, Torque.

Thinking of buying it, how much did you pay if you don't mind me asking? Online it says it goes for 250.00

 

In reference to the anti-fouler here is some info you might need. It is a spark plug anti-fouler. You can find one at Autozone, part #42009 I believe it is made by Motormite. There will be 2 in the package. Take one of them and drill out the hole with a 1/2" drill bit. Then thread that anti-fouler inside the other anti-fouler. Then put your 02 sensor in the bored out fouler and thread into the cat or test pipe. The secondary 02 sensor is just there to see if the cat is donig its job. It will not affect A/F ratios. Now by pushing the 02 sensor further away from the exhaust stream and the fact that exhaust is only passing through that small hole will probably not cause to have a CEL. I can take pics if needed.

 

I have yet to explore all the settings and features. Don't buy it direct. Get it off ebay from the same company for $200.

Btw, sorry for the

 

Will this technique pass emissions? We can run a CAT here in VA, as long as it doesn't throw a code, but having an anti-fouler might throw up a red flag to the inspector

 

It may not pass the "visual inspection", which is done in CA and all other states unfortunate to have CARB's legislated stupidity forced upon them (not sure if VA is one). However, its purpose is specifically to prevent CELs so otherwise you should be OK.

 

I would doubt someone would think twice. Most are looking for a cat and O2 sensor(s)... that's it.