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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Vargas turbo upgrade



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      03-19-2014, 12:27 PM   #1
ChuckWow
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Vargas turbo upgrade

Has anyone installed these yet? I think I saw somewhere he's sold some already? Or are they still in the tuning process? I don't see any recent updates on this
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      03-19-2014, 03:01 PM   #2
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He sold some months ago and I haven't seen a thing on them in any of the boards besides something Tony posted from a guy in Asia. I would love to see some more feedback on these, especially with the PFT protune.
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      03-19-2014, 05:01 PM   #3
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Just that a lot of people were really excited about it and all of a sudden the whole thing goes silent. Is he not selling them anymore? Something wrong happen? Tuning issues make it unsellable?
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      03-19-2014, 06:39 PM   #4
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Wow, is this forum dead now? Did everyone buy new 4 series or what?
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      03-20-2014, 08:28 AM   #5
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I know he didn't sell too many, but it has to be 10+ and it is shocking that none of those people are on any of the 3 big forums.
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      03-20-2014, 09:14 AM   #6
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I was in line to buy this. Then two things happened: I found out it is not intended to run on pump fuel and Vargas started acting like a choad.
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      03-20-2014, 09:20 AM   #7
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I was in line to buy this. Then two things happened: I found out it is not intended to run on pump fuel and Vargas started acting like a choad.
Such a disappointment. Would have really loved to upgrade my turbos at some point
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      03-20-2014, 10:55 AM   #8
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I was in line to buy this. Then two things happened: I found out it is not intended to run on pump fuel and Vargas started acting like a choad.
Are the stock frames just too small to provide good gains on pump gas? The single turbo N54 cars are putting down 600 on 91 only..
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      03-20-2014, 11:14 AM   #9
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You have to go to much bigger wheels to get more efficient at pump gas boost levels. The Vargas would provide some gains on pump, but probably only 40whp or so. The biggest benefit would be holding that power to redline. We really aren't positive what the N55 will take for boost on pump gas since the stock turbo can't put out enough air. it might surprise people at take 18-20psi, in which case there will be significant power gains. We will just have to wait and see until someone actually tries it.
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      03-20-2014, 12:40 PM   #10
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Quote:
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I was in line to buy this. Then two things happened: I found out it is not intended to run on pump fuel and Vargas started acting like a choad.
Well that would pretty much explain it, thanks. So all that work he did only to find out it doesn't work, that's what I was suspecting as them most possible reason.
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      03-20-2014, 04:55 PM   #11
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The turbo works if you are running something higher than 91 octane, but with the limitations of 91 octane you won't be seeing the 477whp they saw on high octane.
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      03-20-2014, 08:11 PM   #12
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The turbo works if you are running something higher than 91 octane, but with the limitations of 91 octane you won't be seeing the 477whp they saw on high octane.
Regardless it seems like Vargas and everyone else has given up on it?
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      03-20-2014, 08:36 PM   #13
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Last time I looked, RB should have a turbo upgrade around the corner. Pure also has a stg 1 available, stg 2 still a while out.
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      03-21-2014, 12:56 AM   #14
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He has only shipped a couple. I ordered in November and I'm still waiting.
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      03-21-2014, 02:40 AM   #15
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He has only shipped a couple. I ordered in November and I'm still waiting.
That's not a good sign, I'd try and get my money back at this point
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      03-21-2014, 08:35 AM   #16
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RB is still a ways out too. I would expect at least 2-3 months out at a minimum. They were supposed to cut an exhaust housing this week, but I didn't see any update on that. It has been progressing slowly as spring is probably their busiest time of the year.
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      03-21-2014, 11:56 AM   #17
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RB is still a ways out too. I would expect at least 2-3 months out at a minimum. They were supposed to cut an exhaust housing this week, but I didn't see any update on that. It has been progressing slowly as spring is probably their busiest time of the year.
Exactly,

Look forward to the RB or the PURE stage 2. Both will be excellent. The RB should be available soonest. I believe RB is busy producing / shipping his N54 units. I'm sure he'll have some exciting news in the near future.
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      03-21-2014, 12:29 PM   #18
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Its not looking good for the N55 at this point. This motor sucks. I had high hopes for a turbo upgrade, now it seems that won't be possible unless I had access to higher octane pump gas.
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      03-21-2014, 03:01 PM   #19
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Its not looking good for the N55 at this point. This motor sucks. I had high hopes for a turbo upgrade, now it seems that won't be possible unless I had access to higher octane pump gas.
That is completely false and you don't seem to understand exactly how turbos work.

The more efficient a turbo is, the less heat it creates so you get more dense air in the engine. This allows the engine to produce more power. That is why a big turbo at 20psi creates more power than a little turbo at 20psi. A good FMIC/meth/E85 also helps with this.

The N55 has a very small stock turbo so you are pushing it out of the efficiency range quite badly, even at stock boost levels and high RPM. Going to a bigger turbo (even the vargas) is going to be more efficient and will give you more power, especially at high RPM. The tiny stock housings are going to be a limitation to the possible efficiency gains.

TL;DR If you want big pump gas numbers you have to go with a big turbo. Put a 6262 on there and have 500+whp on 91 octane.
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      03-22-2014, 10:58 AM   #20
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I have given up hope for a reasonably cost-effective solution for real N55 power. I don't want to run anything other than pump fuel, I don't want to spend more than $10,000 modifying the car and I don't want to end up with less than 450 whp. From everything I have seen, that is not happening in the foreseeable future. I have given up on the platform. My wife can have the car if she wants it. She will be content with the PPK. I'm moving on to a 911 or GT-R as a daily I think.
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      03-22-2014, 11:59 AM   #21
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I have given up hope for a reasonably cost-effective solution for real N55 power. I don't want to run anything other than pump fuel, I don't want to spend more than $10,000 modifying the car and I don't want to end up with less than 450 whp. From everything I have seen, that is not happening in the foreseeable future. I have given up on the platform. My wife can have the car if she wants it. She will be content with the PPK. I'm moving on to a 911 or GT-R as a daily I think.
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      03-22-2014, 12:02 PM   #22
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Quote:
Originally Posted by CombatNinja View Post
I have given up hope for a reasonably cost-effective solution for real N55 power. I don't want to run anything other than pump fuel, I don't want to spend more than $10,000 modifying the car and I don't want to end up with less than 450 whp. From everything I have seen, that is not happening in the foreseeable future. I have given up on the platform. My wife can have the car if she wants it. She will be content with the PPK. I'm moving on to a 911 or GT-R as a daily I think.
Shoot, if you can afford a GTR or a 911 then do it man!

No sense in waiting for a platform to evolve if you got the money for those kind of cars!
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