RV6 I4 PCD/Downpipe for the K24Z3 08+ Accord and 09+ TSX

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Old 08-02-2012, 06:55 PM
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Posting for optimusaccord:

STOCK + TAKEDA CAI: 171.48 HP / 157.51 TQ


RV6 PCD + TAKEDA CAI: 186.27 HP / 161.53 TQ (+14.76 HP / +4.02 TQ)


RV6 PCD + TAKEDA CAI + TUNED: 193.72 HP / 160.87 (+22.24 HP / +3.36 TQ) <-Compared to STOCK + TAKEDA CAI
Old 08-02-2012, 06:57 PM
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Originally Posted by optimusaccord
It matches up with the factory cat. it's quite nicely done.

SO, I got the dyno done today. It was 101 degrees here today, and very humid. So... here it is, (will upload pictures if anyone wants to help with that, email me... ) with the intake and just pipe on, the power was 171/160 tq. The baseline was 170/15X tq. Now, some may complain that it's not enough, but keep in mind, when I originally dynoed the car it was like 85F, so it's quite a bit warmer, and more humid today.

Now for the good. With a conservative tune, for 93 octane gas, the car put down a killer 193.72 hp/160.87 tq with. Be mindful, this was with 101 degree temperatures, no air movement at all, and the car on the dyno for like 2 hours. Throttle response is way way faster, and my daugher loves the sound the motor makes now.

Pulls strong, cannot wait for the custom turbo kit...
Max power on the PCD+CAI shows 186hp not 171hp???
Old 08-02-2012, 08:40 PM
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THIS.IS.AMAZING.


Can someone translate the torque to Nm for me please haha >.<
Old 08-02-2012, 09:03 PM
  #244  
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ohhh man......i might have to re-think about me not wanting this cuz of emission...those numbers are great!

+1 more info on the tune please
Old 08-02-2012, 09:09 PM
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yeah thats a major hp gain as opposed to 1hp/6tq

im excite
Old 08-02-2012, 09:34 PM
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Did you install ONLY the down pipe What about the second cat? thanks!
Old 08-02-2012, 10:34 PM
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Originally Posted by robpp
Did you install ONLY the down pipe What about the second cat? thanks!
I believe the only mods optimusaccord has are the Takeda CAI and RV6 PCD. RV6 also has a test pipe that replaces the second CAT and a high flow CAT to squeeze some more power out.
Old 08-02-2012, 10:46 PM
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Correct, I have the factory cat in place.

Any other questions I can answer?

I am thinking turbo again. Look into picking up the rbc and zdx tb in preparation for the oncoming changes. May get that tuned... maybe do it all at once... who knows, going to talk with Charles in a few weeks and see what he wants to do to take this to the FI level. But if we do turbo we are thinking the borg warner EFR turbo setup, where the wastegate and BOV and built onto the turbo itself, they are pretty sweet and would make the install look awesome.

The powered picked up in midrange and top end is really noticeable, and helps the gears go by quite a bit quicker. The throttle response is almost too responsive. Feels like I'm learning to drive a new type of car, when I went from my 98 to this, there was a learning curve, now it's all over again. In a few days it'll be normal.

But, if you take 193.72 and divide that by .9 you get this: 215.44, that's if you believe in the 10% drivetrain loss. If you believe in the 15% drivetrain loss the number at the crank is: 227.90. So power at the crank is between those two, depending on which camp you believe in for drivetrain loss. (formula: whp/.9 or whp/.85) This formula will account for 10 percent or 15 percent drivetrain loss. This is considered acceptable in FWD platforms, while rwd is between 15 and 20. I *believe* awd 20% drivetrain loss is considered acceptable. Does this help?

Last edited by optimusaccord; 08-02-2012 at 10:58 PM.
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Old 08-02-2012, 10:52 PM
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Sorry, I have the tune completed with flashpro. Tomorrow I may look into uploading the map.

I will also reach out to Charles at Adrenalinexxx.com and see if I can get the winpep files.

Also torque to newton:
http://www.ehow.com/how_8664489_conv...ootpounds.html

With that formula: newton/meters is: 216.198....
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Old 08-02-2012, 10:57 PM
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Dat pipe! I need one now!!!
Old 08-02-2012, 11:01 PM
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I did achieve this with the ceramic coating on the pipe, so your numbers may vary if you don't get it coated.

The pipe is awesome though. If you get it tuned, I think you'll be really happy. I am thinking exhaust is in order...

So... for the haters that have nothing nice to say about the k24z3, keep hating. I think it's just fine. When this gets a turbo strapped on.... it's going to become a handful.
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Old 08-02-2012, 11:44 PM
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this thread just got VERY exciting
Old 08-02-2012, 11:46 PM
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im not a big fan of that torque curve...doesn't look particularly flat and looks like it's all over the place, the afr seem to waffle a bit too...that line shouldn't have spikes, it should be smooth. I guess the tuner played with the afrs to get the most power, just strange the way it needs to start getting lean towards the upper end of the powerband.
Old 08-02-2012, 11:49 PM
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also cool to note that holding out the gears doesn't make sense in this car, short shifting at 6800 seems to be the way to go
Old 08-03-2012, 03:23 AM
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I am.. so close to buying this...
Old 08-03-2012, 03:44 AM
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Thanks for posting up the data Optimus. I hope you can get me that winpep data soon.

+14.76 HP / +4.02 TQ GAINS! with just a simple bolt on and keeping the restrictive secondary cat. There is still power to me made with a HFC or test pipe and exhaust.

Hopefully we can get enough interest for a RV6 catback exhaust.
Old 08-03-2012, 03:57 AM
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Damn axionindustries got a CEL for being catless w/ defoulers.... wish I never cut my second cat....
Old 08-03-2012, 09:12 AM
  #258  
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Drove a bit this morning, the temps are only like 80f. The torque that's available just with normal driving is readily apparent.

I would agree with getting the hfc from rv6. It was a bit of a money issue, but after he refunds me the money for dyno's, I may pick the hfc up later this month or early next month.

I'm thinking more and more turbo on this car. Pick up the ZDX and RBC with deatsch work injectors and all of that....
Old 08-03-2012, 10:30 AM
  #259  
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ordered the downpipe...oh snap...my tsx is gonna kick some arse!!!!
Old 08-03-2012, 10:32 AM
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by the way, I have an auto, so we'll see how that works out, lol.
Old 08-03-2012, 10:45 AM
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Originally Posted by spdandpwr
by the way, I have an auto, so we'll see how that works out, lol.
I tested the prototype RV6 PCD on my '09 AT. Works perfectly fine
Old 08-03-2012, 10:49 AM
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I mean works out in terms of making the car feel a tad bit zippier. I feel like this car would be great if I can get 10-15 more hp out of it.
Old 08-03-2012, 04:18 PM
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Originally Posted by Richie v6
Thanks for posting up the data Optimus. I hope you can get me that winpep data soon.

+14.76 HP / +4.02 TQ GAINS! with just a simple bolt on and keeping the restrictive secondary cat. There is still power to me made with a HFC or test pipe and exhaust.

Hopefully we can get enough interest for a RV6 catback exhaust.
if it's cheaper than the ct exhaust, you might have a buyer.
Old 08-03-2012, 05:13 PM
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Three inch all the way back to the split to the dual, and I'd be interested. I want to go turbo back.
Old 08-03-2012, 06:11 PM
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3" doesn't necessarily make extra power, even on a turbo car...look at awe's 2012 gli exhaust...they decided against a 3"
Old 08-03-2012, 06:32 PM
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rv6 cat back??????? !
Old 08-03-2012, 07:52 PM
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I just told another member that I'm installing the downpipe and high flow cat tomorrow and then he reminded me of this thread! Now I'm even more excited to install it.
Old 08-04-2012, 01:58 AM
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Oh man, cannot wait to get this part... In a bit of a rut with money atm but I will be on this ASAP!

fn2awsum, let me know when you plan to get this as we're both from Australia!
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Old 08-04-2012, 09:43 AM
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Gonna do it after i come back from holidays in sydney!! Ecu and flashpro and rrc pending payment atm!!! Oh euronoob also u can get flsshpro and ecu from BYP in sydney
Old 08-04-2012, 10:29 PM
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Originally Posted by fn 2 awsum
Gonna do it after i come back from holidays in sydney!! Ecu and flashpro and rrc pending payment atm!!! Oh euronoob also u can get flsshpro and ecu from BYP in sydney
Ohh damn!! Where are you picking up the RRC from?

Also, what year is your missus' Euro again? Mine's 2011 so don't think the FlashPro will work on my car, need an older ECU

And to check if the FlashPro fits our car, do we check that thing near our intake for the code or is it actually between the driver and the passenger in the footwell somewhere because that's where it says to check on the site :\
Old 08-04-2012, 11:11 PM
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Edit: ^ Ok, nevermind. The footwell is for the old gen Euro's. Ours is located near the battery lol. Gayyyy, my ECU is RL6-Q03
Old 08-04-2012, 11:45 PM
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we got the 2010 CU2. our numbers dont match up either for the ecu. but thats no problem coz BYP stocks the correct ecu. just get it off them and away you go with the flashpro [=. oh dam i meant im getting the RBC not RRC hahaha. looking for mid range torque rather than top end power. mainly for everyday driving so not gonna hit the high revs any time soon haha. also picking that up from BYP with the water hole plug.
Old 08-06-2012, 12:06 AM
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Originally Posted by Euronoob
Oh man, cannot wait to get this part... In a bit of a rut with money atm but I will be on this ASAP!

fn2awsum, let me know when you plan to get this as we're both from Australia!
Count me in too
Old 08-06-2012, 08:54 AM
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so, I might be the first to test fit this on an ilx...going to the acura dealer next week.
Old 08-06-2012, 09:50 AM
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Originally Posted by spdandpwr
so, I might be the first to test fit this on an ilx...going to the acura dealer next week.
I'm sure it will bolt up to the block just fine, but the rest of the exhaust is SOL if its anything like the precat on the new Civic SI.

The precat in the Civic SI is much shorter in length and the exit of the precat is off to the side so they can cram everything in there. Not a straight shot like it is in the TSX.

http://estore.honda.com/honda/parts/...&b=E++0401&dl=
Old 08-06-2012, 10:12 AM
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then it definitely won't fit...
Old 08-06-2012, 05:27 PM
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asia candy, whats good with that downpipe?
Old 08-06-2012, 08:24 PM
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mine might be up for sale soon (it's bnib)...thinking about not modding the tsx and getting something else entirely.
Old 08-06-2012, 10:34 PM
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pm me if u decide, i commute between boston and jersey here and there for the summer so maybe i can save you the headache of shipping. maybe i can give you a high five. who knows
Old 08-07-2012, 04:16 AM
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RRC is on the way. Yeah i said it. RRC [=<. Ecu, flashpro, 3" exhaust, Rv6 PCD, tune all come right after. Will post dyno sheet here. Booked in for the 12th of october


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