Wondering if anyone here knows of the different aftermarket catch can’s out there for the RS4? My car is at a local shop having a carbon clean done and I am thinking of having a catch can installed while everything is apart. I am looking at having this installed to simply curb/lengthen the amount of time before I am back in for another carbon clean.
I have seen the KMD unit, however I find that it very pricey: $300+…hoping there are other, cheaper but decent options out there.
Thx!
If it’s just peace of mind that’s fine, but the RS4 guys that have done it have shown pretty much zero difference after catch can is installed. Might be pest to just put that ~$500 towards your next carbon clean.
X2^ but…if you were to install one since they are still functional for other uses, I’d recommend Draft42. Some nice options and upgrades like a petcock for the emptying the can instead of having to remove it each time. A window to check the build-up level etc.
…and the carbonator
catch can = wasted money unfortunately (as it pertains to carbon build up)
FORTUNATELY nice guys like kryptonik tried it out, shared the info with the community, and saved us all the expense.
speaking of, someone needs to invite him over here
I did…I sent him a PM on AZ. i think he’s been laying low and doing “life” stuff. He’ll be back on soon I’m sure.
How’s his car? he’s one of the few full exhaust RS4 cars out there I believe. I think he basically has 2000S4 and Dan@JHM’s modlists. Would be nice to hear from him.
He’s a good driver too so we should convince him to hit the strip.
Does he still have the pes unit on his car? I wonder how it is going
IIRC it was up for sale in the classifieds a long time ago
Also what I was thinking, just waiting for some else to confirm this thought.
Meth was also shown to not provide any aid against carbon buildup, at least not as applied thus far.
Yeah dude he removed the pes and went full JHM bolt ons.
Amazing to look at 2000s4 (we really need him to change his username) and his modlist…he ran 12.28-12.50 all day like it was nothing with jhm tune exhaust dps clutch flywheel crankpulley intake spacers, and heavy ass wheels (while I couldn’t run better than 13.1 as a stock rs4).
Kryptonik’s car was full milltek (catless I think) + PES SUPERCHARGER + meth + hre p40 wheels and was down 100 or so pounds (euro seats etc) and his BEST was around 12.59-12.60 at 111.
Needless to say kryptonik made a good choice and cut his losses? by selling the pes.
Interesting fact…3 people in europe at least went pes m90 rs4 kit…then got frustrated and went with an m112…and 2 of those have ditched the m112/pes altogether. One of them was djpesrs4 who I told last spring that his m90 would disappoint. He went nuts on me…then agreed with me.
The eaton m90 (vf/pes kit) + Audi 4.2 owner progression is predictable as fuck
Buy kit
Talk kit up
Tell people who call out vf/pes’ m90 choice a fail ‘haters’
Talk kit up more and say its awesome
Do races with bone stock cars and say ‘see, I killed him’
Realise that downpipes + jhm tune + jhm catback beats stock by the same margin
Go to dragstrip and run same time as piggies or downpipes NA cars
Blame clutch
Get new clutch and still suck
Blame tune
Get new tune and still suck
Sell bllower and or car
Disappear quietly
Krptonik and a few other guys ate a slice of humble pie and denounced these m90 kits in order to help protect the forum members. Thanks to them we just don’t buy the junk anymore (well the S5 guys do…and the europe guys do because they’re just unaware of what we’ve gone through here). Thank goodness for those guys like kryptonik/jbimolaS4/sear because its pretty powerful evidence that these kits just don’t satisfy.
Glad he has seen the light…although it sad to see all that hard work and time that was put in to that car, KMD did some quality work as well and then have to pull it all apart and sell it…
Anyway to get this thread back on topic, it annoying that the oil catch can and meth does jack all to help with carbon build up. Then there is JHM carbonator any idea how this might work or are they keeping tight lipped about it until release
I’d imagine to avoid reworking the I/M they’d use a 9th injector of sorts. If they added the w/m ports like PES did, I know it’s horrible to mention them, but instead figured out a way to spray the proper amount of fuel etc that might work too. To get all of that fueling to work properly and incorporate all of the variables…headache imo. Toyota for example did it but they have the resources, the time, the money etc. Not that I don’t have confidence in JHM it’s more to do with the amount of work I assume must be involved. Hopefully they will chime in when the time is right.
Interesting
Krypto got a deal from PES for being the first, or one of the first, PES RS4 cars. So not ideal, but not as bad as the guys who paid full retail.
As for the JHM carbonator, still a year of testing away probably. They tested it on Dan’s car and it worked well, but they’ll want LOTS more miles. Problem is carbon doesn’t come up instantly, so it takes 6 months to a year to run the product to see if it’s REALLY working.
Sounds like ArthurPE lol
“If Audi didn’t figure it out, how are 2 guys in a garage going to figure it out”
That’s what he said a few times on RS246 when the carbonator came up. Well Arthur, Audi did figure it out (newer FSI cars aren’t suffering CB), as did a bunch of other companies. Further, if JHM were ‘2 guys in a garage’ do you really think they’d have the products they do, developed in house, or the tuning and R&D capabilities they have shown to have? Just run the lightweight crank pulley for the B6/7 S4 around in your head a few times and you’ll understand what it takes to develop a part like that.
One day people will clue in that JHM is not 2 guys in a garage!
Please don’t compare my thinking to that guy, makes me cringe. :
Regardless of the number of people, I think it takes knowledge…time…testing…retesting…time…time = money. So, in short I believe JHM has the knowledge part down or at least the learning curve is way shorter than other tuning shops based on their results to date, the time is the killer. It takes away from other important factors in running a business, making money. At the end of the day you need money to maintain the business.
I realize they have access to other “support” when/if needed.
Even major OEM’s have to make tough decisions to step away from a plan every now and then due to financial responsibilities.
This wasn’t a dig towards JHM, it’s my TOTAL speculative view on the topic. I have faith in JHM I just think it will be quite a while before the product is ready for public release.
Hell I’d be ecstatic if I was dead wrong!
The amount of testing OEM’s do both mileage wise and hours wise in mind boggling. I know JHM likes to test things a ton before releasing them so I’m assuming this one in particular will be a while.
knowledge = check. You also can’t forget the leverage they have thanks to pre-existing relationships in the performance industry. And no I’m not talking piddly audi tuners…I’m talking major OEM side stuff. People should be really suprised that APR has JHM employees on speed dial for help when they run into problems. The numbers don’t add up…APR, multimillion dollar business in 60,000 a square feet factory, has to call ‘2 guys in a garage’ JHM for help? That’s odd. Well…no, it’s not odd. Again, if people only knew.
time = check (unfortunately call back times and stuff suffers, but I’d rather have slow replies and a fast car than fast replies and a slow car).
money = check. The amount of money Jason pours into R&D is absurd, as is the money spent within the business. As a percentage of overall revenue, I’d bet it’s higher than anyone else in Audi tuning. Just a bet, but one I’d feel safe winning. I know what their margins are, and I know the personal sacrifices they make to get products developed.
As for the time part of this product’s development, people act like JHM started working on this when they leaked info on here last month. This has been in the works for a year already.
Here’s something…there will be carbonators on customers’ RS4s before the snow melts this winter. I don’t think you want to bet me on that one lol.
You do realize we’re not actually debating each other here correct? The way I’m reading the back and forth, we’re on the same page.
Me: I think it will take a LONG time for the final part to be released due to the reasons I stated. Doesn’t matter when JHM started, the timeframe will be over a year from start to finish if I had to guess. Which is normal or impressive depending on how involved the product is. Eithery way, good for us FSI owners.
Me: They have resources on the OEM side and/or who once worked on the OEM side at their disposal.
Me: They have a better understanding of this and other platforms than the majority of Audi tuners out there.
Me: They like to test their products thoroughly.
You: Feel they have the knowledge. Me too.
You: Explanation for “time,” I agree. I’m stating it will take a while for the particular product due to the intricacies in getting it “right.”
You: Money - You know more than I do about their current status. I was stating it probably costs a ton to iron this particular product out due to all of the testing needed. Never stated they don’t have the money to complete the process, just made a statement about LARGE OEM’s having made decisions to walk away from poducts/offerings for various financial reasons. Not a bad thing, more of a reality, in any industry really. Sometimes there just isn’t a large enough benfit in the end to justify the effort needed. In this case I think there is even considering the smaller FSI market who would purchase this product. All good news imo.
I knew of the work either due to you or another person who is close to JHM, CV maybe, so one of you filled me in quite some time ago. I do realize you may be speaking about others who may have thought this product development just recently started.
Oh I wouldn’t doubt it - which also tells me they feel they’ve worked out most of the kinks so to speak if they are comfortable installing beta releases on customers’ cars. Cool.
Yes, youre debating you 
however you raised 3 doubts everyone always raises and gave your thoughts. I did the same and addressed them from what I’ve seen.
Then you made a guess about when jhm will have it on customer cars ‘a long while’. I think it will be much less than that as they’re already well into this process, and are about to beta test it on other rs4s (other than Dan’s).
If I did, it’s because i’ve been thinking/dreaming about the Carbonator too much. ;D
…
You must know more than I. My “guess” would be another 6 - 9 months for public release. It seems you know that the beta phase is about to start so I’ll take your word for it, no reason not to.
Either way I’m excited for this product so the sooner the better.
Back on topic: Catch Can’s.