RV6-exhaust performance

7816 Views 19 Replies 8 Participants Last post by PJP71, Jun 30, 2018

H-ridge

Discussion Starter · Mar 8, 2016

Hi!

Does somebody have the rv6 Products(exhaust,J-pipe) on ther own car?

And did that make any hp diffrance?

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Jonb

· #2 · Mar 8, 2016

I have the RV6 J-pipe and High flow pre-cats. Completely transforms the truck IMO. Truck pull much harder from idle all the way to redline and not has no problem at any speed getting up and going. Rough estimate is 25-35hp and tq gains from doing both.

Reactions: 1

H-ridge

Discussion Starter · #3 · Mar 9, 2016

Nice! Then I must buy a new exhaust system

wich mod did the most gain?

AG87BlkLX

· #4 · Mar 9, 2016

Jonb said:
I have the RV6 J-pipe and High flow pre-cats. Completely transforms the truck IMO. Truck pull much harder from idle all the way to redline and not has no problem at any speed getting up and going. Rough estimate is 25-35hp and tq gains from doing both.

Is this seat of the pants dyno? That's typically a lower cost dyno in which numbers get skewed.

Reactions: 2

Jonb

· #5 · Mar 9, 2016 (Edited)

AG87BlkLX said:
Is this seat of the pants dyno? That's typically a lower cost dyno in which numbers get skewed.

There are no dyno numbers from actual RL's only other honda 3.5l's so number may vary by some and wheel hp/tq will be lower in a AWD. The 3.5l has tons of potential for hp/tq gains and it can be found on many Honda forums it just a matter of is it practical gains for a truck and can the RL drivetrain handle alot of extra HP/tq. Personally these two items are exactly what this truck needed, the drive ability is so much better IMO its actually somewhat fun to drive now and just pulls so much better than before. I have not towed anything yet since doing these mods but I'm sure its going to make that much more pleasurable as well.

Dyno results: RV6 PCD's vs. RV6 HFPC. - Drive Accord Honda Forums

RV6 Precat Deletes/Highflow Precats Header Options Now available for 3.5L V6 - Drive Accord Honda Forums

RV6 V3 J-Pipe Install DIY and Dyno - AcuraZine Community

Reactions: 1

Jonb

· #6 · Mar 9, 2016

H-ridge said:
Nice! Then I must buy a new exhaust system wich mod did the most gain?

I would say the high flow pre-cats, but I already had the j-pipe when I installed them so with a stock j-pipe you may not gain as much as it will be a big choke point. Honestly they work great together and could not be happier with the performance results.

Treborg17

· #7 · Mar 17, 2016

Jonb said:
I have the RV6 J-pipe and High flow pre-cats. Completely transforms the truck IMO. Truck pull much harder from idle all the way to redline and not has no problem at any speed getting up and going. Rough estimate is 25-35hp and tq gains from doing both.

Any negative effects? The product details mention that the check engine light may be effected. Thanks.

Jonb

· #8 · Mar 17, 2016

Treborg17 said:
Any negative effects? The product details mention that the check engine light may be effected. Thanks.

None so far and no check engine lights it actually got rid of the check engine light I had with the stock cat's.

Treborg17

· #9 · Mar 17, 2016

Jonb said:
None so far and no check engine lights it actually got rid of the check engine light I had with the stock cat's.

Just to be clear you've modified the exhaust from the engine to the stock CAT. CAT-BACK is stock?

Jonb

· #10 · Mar 19, 2016

Treborg17 said:
Just to be clear you've modified the exhaust from the engine to the stock CAT. CAT-BACK is stock?

Correct.

I do however have a Yonaka motorsports cat-back sitting in my garage. The only reason its not on the truck is because of some unwanted drone from the combo of my RV6 precats, j-pipe and no third cat. With the stock cat-back on I do not have any drone. The truck is a bit throatier when getting on it but at idle and highways speeds she is quite as can be.

Heres a link to my Yonaka cat back thread. Still working on resolving the droning issue, I have all the parts to hopefully resolve it but I just need to get the time to work on it.
http://www.ridgelineownersclub.com/forums/7-under-hood-performance/122458-yonaka-motorsports-cat-back-pics.html

Carsmak

· #11 · Mar 19, 2016 (Edited)

Jonb,

I have no idea what a 4 wheel dyno would cost but I know certain car shows have dyno's (not sure about 4 wheel) and maybe RV6 could recommend one if you didn't want to do the car show route. I'm certain more than 1 member would kick into a "go fund me" type acct to help defray the cost if you can't talk RV6 into picking up the tab.

EDIT, 4 wheel dyno not possible, remove rear drive shaft, and dyno as FWD vehicle, rear only works to 18mph

Dnick

· #12 · Mar 19, 2016

Carsmak said:
Jonb,

I have no idea what a 4 wheel dyno would cost but I know certain car shows have dyno's (not sure about 4 wheel) and maybe RV6 could recommend one if you didn't want to do the car show route. I'm certain more than 1 member would kick into a "go fund me" type acct to help defray the cost if you can't talk RV6 into picking up the tab.

^^^^^^^^^^^^^^^^^^ I second that!

Many here would be very interested to see what a dyno test reveals.

Reactions: 1

Treborg17

· #13 · May 16, 2016

I just installed high flow pre-cats, j-pipe, and high flow cat on my 2014 Ridgeline SE. Stock cat back exhaust. K&N Filter element stock intake. No dyno results, but so far it feels much peppier off the bottom and when it get's into the heart of the power band it really picks up speed much better than stock. Less throttle to maintain speed and acceleration and passing are improved. I even recorded 24.4 mpg on the highway on the way to work and general driving mpg doesn't seem to have changed. I don't normally have a heavy foot so I get 19.X most of the time and 23.X on the highway. Was it worth it? If you have the money, this will make owning and driving a ridgeline much more pleasurable. I would say the stock pre-cats are the worst flow enemy. Just looking at them compared to the RV6 units says it all. The stock j-pipe uses much smaller diameter tubing before they combine while the RV6 unit has equal length tubes of larger diameter from the pre-cats to where they collect into one tube. It cost me $1400.00 for everything and I installed it myself in 2 six hours days with some help from a small armed friend to reach the back pre-cat bolts. The are a really bugger!!

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PJP71

· #14 · Jun 26, 2018 (Edited)

Hello everyone. I am looking at getting a gen 1 I've found for a good deal. We have a 05 Pilot which we love. After test driving a gen 1 yesterday I liked many things about it, except the acceleration performance. Compared to out Pilot, it leaves a lot to be desired. So much so that I almost took the RL of my list. Being a longtime car guy, I've done my share of mods and do all my own work. I looked throught several related threads but have yet to find what I am looking for. This brings me to my question for all of you that have some or all of the RV6 exhaust mods. If I do intake and the RV6 precat deletes, J pipe and some sort of cat back, would that bring me to at least the same performance as the Pilot???

GhostYK1

· #15 · Jun 27, 2018 (Edited)

4

PJP71 said:
Hello everyone. I am looking at getting a gen 1 I've found for a good deal. We have a 05 Pilot which we love. After test driving a gen 1 yesterday I liked many things about it, except the acceleration performance. Compared to out Pilot, it leaves a lot to be desired. So much so that I almost took the RL of my list. Being a longtime car guy, I've done my share of mods and do all my own work. I looked throught several related threads but have yet to find what I am looking for. This brings me to my question for all of you that have some or all of the RV6 exhaust mods. If I do intake and the RV6 precat deletes, J pipe and some sort of cat back, would that bring me to at least the same performance as the Pilot???

Yes!

Then if you want to go a bit further. You can add the larger 70mm Acura ZDX throttle body and upper intake or use an adapter and port matching the stock intake manifold to that list. It will most definitely wake it up beyond the pilot acceleration level.

PFA!

by GhostYK1, on Flickr

I have the RV6-R pre cat delete pipes, J Pipe, Magnaflow high flow cat and a Borla cat back. Love the acceleration and sound of this setup. I still don't have a video clip of it. May have to take a quick one this weekend. :nerd:

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PJP71

· #16 · Jun 27, 2018

Thanks Ghost for the feedback! I read about all of the mods you've done and admire your commitment to getting the most out of your RL.

I just did the math and if I am correct on the prices for everything (CAI, RV6 pre cat deletes, J pipe and a cat back such as Yonaka) it should cost me around $1500 in parts to get me to Pilot level performance? Or would it be beyond?

I wish there was more hard data to know just how much hp gains these parts would make. This hasn't been an issue with my past vehicles/mods, but I guess the RL is such small market for performance that this hasn't been established.

GhostYK1

· #17 · Jun 28, 2018

In my opinion it would surpass the Pilot performance. But again I have no quantitative data to back up my opinion. The closest AWD dyno is a 5 hr drive. Other way would be to dyno front wheels only. I don't think that is a true representation of WHP as you would be removing the transfer case and rear drive line from the equation.

There is an import weekend coming up at a drag strip 3hrs from here. I may take the Ridge up there for a run or two. Have to see how I feel that week...lol

PJP71

· #18 · Jun 28, 2018

Sounds good. I used to have a 2002 TL Type S with Ingen intake and comptech header. IIRC, the dyno run I did indicated around 30+hp increase with that setup. So with that in mind, I've been cruising the Acurazine forum trying to get a better idea of what to expect since the TL also uses the 3.5 and many over there have made dyno runs. Most of what I've found so far seems to indicate that the PCDs with an intake might give you the most hp increase on an otherwise stock 3.5. RV6 claimed dyno of at least 30hp gain. After that, the hp gains from other exhaust components are diminishing.

GhostYK1

· #19 · Jun 28, 2018

I think the only gains to be had adding aftermarket exhaust after the J-pipe on these rigs is in changing the exhaust note/sound!

I have to say that Honda did their homework with this exhaust setup. It is engineered to maintain exhaust gas velocity from head to tip. While the exhaust gases flow down the length of the pipe, the pipe diameter also reduces. This is done to maintain velocity and in turn temperatures. Some would say to maintain "back pressure", that statement is incorrect. Then once it hits the muffler it jumps back up in diameter and the water vapours start to condense here rather than way up in the exhaust pipe as would happen if you had too large pipe diameter.

In my opinion, if you haven't done anything to add air/fuel going into the cylinders, there is no need to go with a larger cat back pipe diameter for anythting other than sound change. To me the sound is worth the possible 1-5 hp loss though.

PJP71

· #20 · Jun 30, 2018

Has anyone installed just the PCDs leaving the rest stock??? I am curious how the sound would be and if there would be any rasp? I'm thinking about starting with PCDs and maybe doing a J pipe later if more power is needed.

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