Turbo kit poll: twin or single

[Quattro_The_Dog]

I am on a waiting list for a turbo kit that is being developed. The company has designed two kits and is working with the prototypes on their car. The kits are a remote style system exclusively for the RS4 yet may fit other cars. The designer is torn on twin or single turbo and asked me to help them decide what the public wants. *I have no financial interest in this and it is not a for sale post, potential pricing is given to the public for their information on possible future options. I am a paying customer with a deposit already in place. Full disclosure, I am getting a minor price break as an early purchaser of a kit and customer for about 10 years. I want to see these kits become available for everyone.*

Option one is single turbo, dual exit exhaust, air to air intercooled. This kit would have a target retail of $4899 with software using a journal bearing and cast wheel turbo with a power potential of 550-600 chp or $6199 using a ball bearing and billet wheel turbo giving a power potential of 575-625 chp with pump fuel. Install would be about 4-5 hours on either kit and require no permanent changes.

Option two is twin turbo, duel exit exhaust, air to air intercooled. This kit would have a target retail including software of $6799 using twin cast wheel and journal bearing turbos with a power potential of 575-625 chp or $8199 using twin billet wheel and ball bearing turbos having a power potential of 600-650 chp on pump fuel. The install would take 6-7 hours.

These systems both will bolt up to stock or after market manifolds, stock is suggested. Testing between the prototype car and the R8 have shown 600 wheel potential with meth injection or race fuel.

Thanks for your feedback, any and all will be shared with the company. I am personally going to run a twin setup no matter what. Your opinions will effect what is made available to the public.

[badbluers4]

I'm so confused. A year ago, a turbo kit on an RS4 was impossible. Now this is a $5k kit that can be installed in 4-5 hours?!

[lucidmatt]

Im throwing some popcorn in the microwave for this...

[Quattro_The_Dog]

I'm so confused. A year ago, a turbo kit on an RS4 was impossible. Now this is a $5k kit that can be installed in 4-5 hours?!

I too was surprised by the costs, I could see the retail kits creeping up as other details are finalized, they always do. My take on it is that the system is cheaper and easier because of the remote mount style. This company does all its fabrication and tuning in house so that likely reduces costs. The hardest part to install looks to be the charge piping and intercooler because the bumper comes off, maybe the core support but he says no. The rest is like doing an exhaust with some extra lines for oil.

[65vetteC6]

I'm so confused. A year ago, a turbo kit on an RS4 was impossible. Now this is a $5k kit that can be installed in 4-5 hours?!

Remote mounts are another word for rear mount. It would be back behind the axles probably. Typically they are a little more laggy but considering Vigo breaks tires loose in 4th gear this may be a benefit.

[Mr.Wrong]

I'm so confused. A year ago, a turbo kit on an RS4 was impossible. Now this is a $5k kit that can be installed in 4-5 hours?!

It wasn't impossible, just cost effective. All of the well known and established companies just figured supercharging is the way to go. At the end of the day, they're here to make $.
Interested to see where this goes and hopefully will see the light of day. There's a fella that did remote mount on his B7 S4, thread is in S4 section.

[badbluers4]

Cool well let's see what happens with this then. Hopefully it's legit and not just speculation.

[Mr.Wrong]

Cool well let's see what happens with this then. Hopefully it's legit and not just speculation.

Yup, one thing for sure, it'll be crazy to see FI kits in such low price range lol

[bangoman]

Whichever one is fastest. Get the shop to show dyno and 1/4 mile results for each kit.

[Quattro_The_Dog]

Cool well let's see what happens with this then. Hopefully it's legit and not just speculation.

The single system is on a car already. I am supposed to be the first customer twin after it is tested on the shops vehicle. Even if this never makes it to the public from them, there will still be at least two out there. I asked if the price was intended to undercut the superchargers and was met with a scowl, apparently that's just what it costs to build a remote kit on basically any car with good parts. He reminded me he is both an Aviva and JHM dealer, was at one time an APR dealer. Originally this same shop quoted me around 20 for a normal twin kit and didn't even want to do it. I will happily take this new option.

[badbluers4]

That's cool man! Glad you're bringing it to us. I apologize in advance for my skepticism. u have to admit the forums have been one train wreck after another with the turbo topic lately lol

[Quattro_The_Dog]

Whichever one is fastest. Get the shop to show dyno and 1/4 mile results for each kit.

That is what they are currently doing. Hoping to have the single kit on track and rollers this month, next month twins. Production by summer. He said he doesn't have the capacity to bring both options to market and would rather sell 10-20 well priced kits than 2 or 3 custom expensive ones.

[Kambesama]

The single system is on a car already. I am supposed to be the first customer twin after it is tested on the shops vehicle. Even if this never makes it to the public from them, there will still be at least two out there. I asked if the price was intended to undercut the superchargers and was met with a scowl, apparently that's just what it costs to build a remote kit on basically any car with good parts. He reminded me he is both an Aviva and JHM dealer, was at one time an APR dealer. Originally this same shop quoted me around 20 for a normal twin kit and didn't even want to do it. I will happily take this new option.

Which shop/system is this if you can tell us? Id imagine if there was someone else other than Marvigo out there doing turbos someone else would have mentioned it. Not trying to cause trouble but I was just curious why it has not surfaced at all until you mentioned it.

[Quattro_The_Dog]

Which shop/system is this if you can tell us?

The shop is located in Truckee, CA. They are not an advertiser here and I was asked by the owner not to use the name out of respect for the sites owners and advertisers. He does value the opinions of the readers here so that prompted this post.

You were fast on that edit: It's been talked about and I have said the name before. Sorry for being cryptic but rules are rules. It is very easy to find this shops info as they are the only Audi tuner in that town.

[AvusPdx]

I know of STS that makes aftermarket rear turbo setups for the FR-S and the 350z. It sounds awesome, like a jet engine from the rear.

I'm pretty interested in this, low boost small turbo for low-mid end torque gains would be awesome!

[docurley]

I like the idea of the single turbo and the price looks real good, the old $20k price was just not worth it but $5k-$6k price tag would be reasonable.

[your daddy]

i am working on a trunk mount. wait, JK.

[NYC_Legacy]

I am interested in seeing results and more information as well, hopefully it's not another "too good to be true".

[Quattrors4]

I am interested in seeing results and more information as well, hopefully it's not another "too good to be true".

i really want to see that lol,remote turbos are terrible at efficiency,insanely laggy but hey why not,looking forward to it if it ever happens,I've coulded done it on my car,so much easier to fabricate.you need to run a small turbo to make it spool decently,turbos need heat energy to be driven,by the time the exhaust gas hit the remote turbo 95%off its energy is lost
like i say very ineficient system,mine as well get a jhm blower kit

[FulhamFTW]

i really want to see that lol,remote turbos are terrible at efficiency,insanely laggy but hey why not,looking forward to it if it ever happens,I've coulded done it on my car,so much easier to fabricate.you need to run a small turbo to make it spool decently,turbos need heat energy to be driven,by the time the exhaust gas hit the remote turbo 95%off its energy is lost
like i say very ineficient system,mine as well get a jhm blower kit

Dude, you sound like a fucking child that's worried about losing all the attention......worried someone else has a turbo kit that's not made by you? You're like the Donald Trump of turbo kits....."I make the best turbo kits you've ever seen. People love me and they love my turbo kits. I've sleeved so many blocks and boosted so many motors. Nobody boosts cars better than I do. And I know what you're asking. How do you afford such turbo kits? Well I'll tell you, Mexico is paying for your turbo kit....."

[Quattrors4]

Dude, you sound like a fucking child that's worried about losing all the attention......worried someone else has a turbo kit that's not made by you? You're like the Donald Trump of turbo kits....."I make the best turbo kits you've ever seen. People love me and they love my turbo kits. I've sleeved so many blocks and boosted so many motors. Nobody boosts cars better than I do. And I know what you're asking. How do you afford such turbo kits? Well I'll tell you, Mexico is paying for your turbo kit....."

Lol your so much fun!not at all why would i ?remote turbos are terrible no matter what there is a reason only so few do them,because they don't work well and thats it,but yould be nice to see someone else trying to do a turbo kit,so don't be a jackass and check over the internet what turbo dudes think about remote turbos

by the way there is a reason why sts is out of business because everybody wasn't pleased with remote turbos because at not been efficient and so laggy that a v8 5.0 would only spool 4 psi at 5500 rpm lol

[FulhamFTW]

Lol your so much fun!not at all why would i ?remote turbos are terrible no matter what there is a reason only so few do them,because they don't work well and thats it,but yould be nice to see someone else trying to do a turbo kit,so don't be a jackass and check over the internet what turbo dudes think about remote turbos

You totally contradicted yourself. You can't trash talk the idea of remote turbos in one sentence and then say you would like to see them try in the next. Also, I don't think the idea of this kit was to be the most power producing kit out there. Based on the OP's original post, it sounds like it's meant to be a decent bump in power at a lower cost and easier install. If they are seeing 600hp at the crank on pump gas for under the cost of every single blower out there, then I would say it's more than efficient enough, wouldn't you? Not everyone wants a $30k one off turbo kit for their car. This could be a decent option that could be easily removed later if need be. Judging by the fact that you trashed the idea of it without actually seeing anything makes me think you are a little worried that someone else could produce a kit that's more desireable than what you're currently offering. Otherwise, why would you say anything about it?

[Quattrors4]

You totally contradicted yourself. You can't trash talk the idea of remote turbos in one sentence and then say you would like to see them try in the next. Also, I don't think the idea of this kit was to be the most power producing kit out there. Based on the OP's original post, it sounds like it's meant to be a decent bump in power at a lower cost and easier install. If they are seeing 600hp at the crank on pump gas for under the cost of every single blower out there, then I would say it's more than efficient enough, wouldn't you? Not everyone wants a $30k one off turbo kit for their car. This could be a decent option that could be easily removed later if need be. Judging by the fact that you trashed the idea of it without actually seeing anything makes me think you are a little worried that someone else could produce a kit that's more desireable than what you're cirrently offering. Otherwise, why would you say anything about it?

im not worried at all like i said they can try but i already know how the system will work,we can put together a remote turbo kit in 2 days but what would be the point ?
do it right or don't do it or get a blower kit

[happy2B5]

Very intetested in the results. He (truckee shop) definitely won't be as loose with facts and will provide real world useful performance data. Hoping for the best out of this as the current option is, well...

[Quattro_The_Dog]

i really want to see that lol,remote turbos are terrible at efficiency,insanely laggy but hey why not,looking forward to it if it ever happens,I've coulded done it on my car,so much easier to fabricate.you need to run a small turbo to make it spool decently,turbos need heat energy to be driven,by the time the exhaust gas hit the remote turbo 95%off its energy is lost
like i say very ineficient system,mine as well get a jhm blower kit

Please stay out of this thread. The person who designed this in cad, built prototypes and is going to produce it has more turbo system knowledge in one finger than you have in your whole body. Your ignorant posts help nothing, please stick to your threads and veyron killer rs4.

[Quattro_The_Dog]

Lol your so much fun!not at all why would i ?remote turbos are terrible no matter what there is a reason only so few do them,because they don't work well and thats it,but yould be nice to see someone else trying to do a turbo kit,so don't be a jackass and check over the internet what turbo dudes think about remote turbos

by the way there is a reason why sts is out of business because everybody wasn't pleased with remote turbos because at not been efficient and so laggy that a v8 5.0 would only spool 4 psi at 5500 rpm lol

People stopped making kits because STS got a patent. STS went out of business and it opened it back up. Those are the facts and I delt with them personally on this matter.

Remote mount systems work very well. All of the downsides have to do with low hanging turbos. Good thing your design doesn't have that issue.... oh wait.

[Quattro_The_Dog]

im not worried at all like i said they can try but i already know how the system will work,we can put together a remote turbo kit in 2 days but what would be the point ?
do it right or don't do it or get a blower kit

You know how the system will work? That is simply amazing that you can know that.

Edit: What's the point? Really funny question. The point is a reasonably priced kit that you don't have to moleste your rare car for and still get 150 extra horsepower. I find it very interesting how feverishly you shoot this down when you haven't built a remote kit on a b7 rs4, no one else has either. For all you actually know it will be better. When my car is on twins we will go to Sacramento raceway and see where we stand against your end all be all 30k dollar pointlessly complicated kit.

[Quattro_The_Dog]

Back on track, thanks for the feedback so far everyone. The shop appreciates it.

[totalrecall]

I don't have a horse in this race, but I would be interested to see what the results are when the work is done. Very cool to be part of any new product in the development stage, and what you report back could potentially make a lot of owners very happy.

[Kambesama]

Please stay out of this thread. The person who designed this in cad, built prototypes and is going to produce it has more turbo system knowledge in one finger than you have in your whole body. Your ignorant posts help nothing, please stick to your threads and veyron killer rs4.

I think everyone knows by now that Marvigo only comes looking for attention. If its gonna get him noticed by people he'll say it even if its complete BS coming from his bleached ass.

[turbobrian]

How do people come up with crank HP numbers?

[Kambesama]

How do people come up with crank HP numbers?

And is this rear mount non intercooled?

Ask your friend Marvigo how he comes up with HP numbers and I quote

"the stage 1 make 600 awhp thats much more then the 400 awhp kit from jhm
with the the stage 2 it will make way over 1000 awhp"

[turbobrian]

Well it does make. depends what dyno mustang or Dynojet but it did make that power it was shown. I'm curious to how people always talk about crank HP. What equation do people use because I do not know. Does somone know exact drivetrain loss?

[Quattrors4]

Well it does make. depends what dyno mustang or Dynojet but it did make that power it was shown. I'm curious to how people always talk about crank HP. What equation do people use because I do not know. Does somone know exact drivetrain loss?

its about 23 % drivetrain loss on the rs4 ,but then it depends on the dyno also

so on a mustang dyno yould be 40% drivetrain loss(stock rs4 290 to 300 awhp)420 crank hp
dynojet and comparable dyno read 13 to 16% higher then mustang dyno so 23% drivetrain loss (stock rs4 345 to 350 awhp)420 crank hp

[turbobrian]

Wow so 475-500 whp for $6200. That's a great deal.

[ven0m]

Came here for Vigo's comments. Wasn't disappointed.
"Turbos produce force from heat." - now that's a new one, I thought they were driven by the pressure of the exhaust fumes (of course heat plays a role in how the gas expands), but why the fuck would the back pressure drop 95% from the downpipe to the rear... c'mon, stop pulling numbers from your a** like you always do, and ruin every interesting thread.

@OP: For that price, I'm very interested in the kit (the single turbo) and would appreciate more solid data for us over the sea.

[Quattro_The_Dog]

The drivetrain loss factor used is 15%.

[zmw]

Came here for Vigo's comments. Wasn't disappointed.
"Turbos produce force from heat." - now that's a new one, I thought they were driven by the pressure of the exhaust fumes (of course heat plays a role in how the gas expands), but why the fuck would the back pressure drop 95% from the downpipe to the rear... c'mon, stop pulling numbers from your a** like you always do, and ruin every interesting thread.

@OP: For that price, I'm very interested in the kit (the single turbo) and would appreciate more solid data for us over the sea.

Not that I want to support anything that idiot scammers say, but he's actually correct, back pressure is much higher at the header and collector than it is at the rear outlet, first off exhaust cools (Significantly) as it traverses the exhaust, as gas cools it gets denser, and requires less space, therefore pressure goes down. Turbos don't create power from heat, but high heat is a component of efficient power for a turbo which is why you attempt to RETAIN as much heat as possible in the exhaust system prior to contact with an exhaust turbine, once it hits the exhaust turbine you want to cool down the compressor charge and just dump the exhaust as quickly as possible.

[p3u]

I am on a waiting list for a turbo kit that is being developed. The company has designed two kits and is working with the prototypes on their car. The kits are a remote style system exclusively for the RS4 yet may fit other cars. The designer is torn on twin or single turbo and asked me to help them decide what the public wants. *I have no financial interest in this and it is not a for sale post, potential pricing is given to the public for their information on possible future options. I am a paying customer with a deposit already in place. Full disclosure, I am getting a minor price break as an early purchaser of a kit and customer for about 10 years. I want to see these kits become available for everyone.*

Option one is single turbo, dual exit exhaust, air to air intercooled. This kit would have a target retail of $4899 with software using a journal bearing and cast wheel turbo with a power potential of 550-600 chp or $6199 using a ball bearing and billet wheel turbo giving a power potential of 575-625 chp with pump fuel. Install would be about 4-5 hours on either kit and require no permanent changes.

Option two is twin turbo, duel exit exhaust, air to air intercooled. This kit would have a target retail including software of $6799 using twin cast wheel and journal bearing turbos with a power potential of 575-625 chp or $8199 using twin billet wheel and ball bearing turbos having a power potential of 600-650 chp on pump fuel. The install would take 6-7 hours.

These systems both will bolt up to stock or after market manifolds, stock is suggested. Testing between the prototype car and the R8 have shown 600 wheel potential with meth injection or race fuel.

Thanks for your feedback, any and all will be shared with the company. I am personally going to run a twin setup no matter what. Your opinions will effect what is made available to the public.

B6/B7 S4 version in the works? Would appeal to a much larger audience, myself included. :)

[FulhamFTW]

B6/B7 S4 version in the works? Would appeal to a much larger audience, myself included. :)

Agreed!