Has anyone done it? I think i have an intake that is going so if i have it off thinking about porting it for a wet no2 set up.
Thoughts comments?
Sounds crazy, expensive and ambitious - you’ll fit in just fine here. As for if anyone’s done it, I don’t believe so but maybe one of the veterans around here has looked into it. What are some huge benefits you see adding nitrous to this V10 beast?
at the end of the day if the engine has the power holding capacity of the B67 S4 I would say be careful. If 55 whp per cylinder is enough to ruin your day, nitrous may just be too difficult to effectively utilize unless you have a fantastic tuner. Also doing a one off nitrous build on a V10 S68 is going to take 4 years.
I’d hope JHM supercharges one and go that route. Or I’d buy a used C7 S6 and move on if you really want 500 whp +
+1
This 100%
Now I have a JHM nitrous kit on my car but its a plate system that goes between the intake manifold and the cylinder heads that sprays fuel and nos directly into each cylinder. With a wet kit your doing the same thing but you need to be careful for seveal reasons.
As sakimano mentioned your going to need help with the tuning. The V10 cars already pull back power in the tune. If you add too much more without a tune the car will fight you the entire time. Someone several years ago tried to do the same thing with a RS4 and it went really bad as the car kept trying to pull back more and more power it was a constant fight between the ECU and the nos in the end the motor lost and went to bits.
Another part of the hurdle your going to be fighting is that the car will only let you give it so much fuel. If the car has to correct fuel too much it will go into limp mode. So if it has to add too much or take out too much it will go into limp mode.
The wet kit would be the way to go as my JHM nitrous plate kit has been flawless but It comes with a JHM tune about 2 years of testing and the much needed fuel saftey back up and accumulator to actually help the car make the power. Remember the V10 is a non rail return car so you can only run so much of a fuel increase before you starve the rail until the pumps catch up. That is what happens on the 4.2
Everyone that has tried the nos route and just done a small shot has been fine. Consider 20% over stock as thats just above what the cars fuel correction will allow. So a 50 shot if you can work out all the bugs and hang ups would be fine from what others have done. Eveyone and I mean everyone that has tried to home make a nos system without all the backups and tuning that the JHM kit has has blown there motors.
So you can do it and it can be done but as sakimano said it is going to take some time for you to work out all the bugs and its not clear where you will start fighting the ecu power wise but it will happen. If you have a vag com you can log and we can all help tell you when your starting to have issues. But it will be some work and there will be a line in the sand where the car will draw the limit
Both ecu and fuel wise. Then there is that motor limit thing…
I think the v10 future is bright and it would be a fun expermient if you kept the power down and took baby steps. JHM is also bringng out what looks like some fun helpful stuff with there ECU tune as well as crank pulleys and intake spacers. I would also love to see JHM supercharge the v10 cars that would really help take the cars to the next level.
I would LOOOOVE to see a supercharger for these motors, that would be all kinds of awesomeness. A supercharged V10 ;D Damn.
As for nitrous, I am not even looking into it. Not a chance. Even if JHM came out with a kit for these motors, I’d pass. These aren’t your average honda civics - we’re talking about a $15k motor that could blow up the first time you shoot no2 into it.
Be careful for what you wish for 
Assuming a supercharger for the v10 would be integrated into a new intake manifold… so for all of us with 80k+ miles and bad intake manifold flappers… a $5k supercharger doesn’t seem like a bad idea at all when a new manifold is going to cost you $2k either way 
I would agree, if a supercharger only costed $5k 
Try $15k…
We do Centrifugal Supercharges, and supercharger kits start around 8K
honetly if JHM does come out with a supercharger and from what jake just posted he didnt say they were not going to actually that statment make it sound like maybe something was possibe. But anyway with the JHM blower if you have a bad intkae it dosent really matter you can just lock your intake on the long runner the blower will take care of the rest.
It would probably be a completely different manifold design than stock, I would think. Rather than being something that’s added to the stock manifold, I mean. But I know what you mean - forced induction takes a lot of the finicky nuances of the intake system out of the equation. If I had to venture a guess, I would think heat soak would be less of a factor too, with the higher velocity intake air. (the less time the air spend in the intake system, the less it heats up). Of course, this is all theory. My theory. Which is hardly professional
Ok so this would be my thought on my set up, it would be a manifold direct injection system, fuel and no2 at 10 different ports. the fuel would be supplied by a separate pump and fuel cell that i would always run 110 in. i would by pass the o2 sensors by wiring in a resistor in there place and also remove the cats. then install wide band sensors that will run to a data logger to keep an eye on a/f.
What do you mean the ecu tries to take power away?
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Dont take this the wrong way but your lucky your on this site. Let me tell you why.
The first part of the idea sounds good. Direct port to all 10 cylinders. Using remote fuel delivery for each.
The big issues where the idea starts to fall apart.
1 you cant bypass the 02 sensors. The second you do that the car will go into limp mode. You already have access to the 02 sensors with vag com and they are wideban 02 sensors. You can already read them and the lambda readying in vag com. So you dont have to go through any work for that.
These cars have advanced ECUs and remember these cars are detuned from the factory. How they detune them is in the ECU lets just take the RS4 for example as there is a ton of data on this but all Audis work the same. If you take a stock RS4 and add all kinds of performance parts to it but dont properly update the ECU the RS4 wont go any faster it will just start to shut the throttle.
several years ago APR put a blower on the RS4 they showed a good dyno sheet but when tested on the 1/4 mile track it was not much faster then stock. lucky for them they had a relationship with JHMs tuner. He retuned the car for APR and the car picked up .8 and 10 mph in just the tune.
All or most of all Audis have a pre programmed TQ and HP limit set in the ECU. That needs to be adjusted as well. These cars all have a TQ smoothing curve programmed into the ECU if the cars get outside that curve the ECU will cut ignition and fuel.
Ok so can a good tuner just turn off these parts of the ecm program?
And yes im happy i found this sight no s6 guys on the rest!
lastly I made the post to brain storm, its all about the how can I. also what can you do with these cars as far as a dry system goes, Thats just no2 before mass air flow sensor so the computer sees the extra oxygen and adds fuel to keep it from going lean. for any one that did not know.
Wow, that would be something else!
The V8 R8 with S/C would be great to see, but I’d be interested in how much hp/cyl the V8 & V10 R8 motor can handle without having to be built. Obviously the built turbo options are out there, but that’s a different league across the board from a bolt on s/c option.
Well there will be a list of people telling you there a good tuner but the list isnt very long. It might make sense to see about getting the JHM tune when it comes out and asking if they can help with the project. They already have tuned these cars for nos.
The good thing is helping bring all the S6 guys to this site. When there are a lot of other sites with guys scattered you get a ton of bad information. Audirevolution is a great place with tons of the tallented and smart guys. Its a good formula
As for the dry flow. You would have to spray it after the MAF not before. You would destroy the maf if you sparayed it before the MAF. You would also have to spray it on both sides as there are two MAFs. The Issue with the dry flow is that the Audi system will only add so much fuel and the car will only accept so much variance in how high the MAF readings can go before you will get a fault. Again this can work but you would also need some ECU support at some point in time.
dry systems have to go before maf or you will blow the engine up but you dont put them directly before them, you would port it in to the air filter and there very small shots 75 hp max
You can spray after the MAF. This is a wide ban car the 02 will adjust and the MAF readings will go up as the intake charge changes. It will always come with a bit of a delay but spraying before the MAF even a little before the MAF will destroy the MAF.