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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Turbo Tuner or Stage 2 JuiceBox



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      12-04-2007, 08:09 PM   #67
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Originally Posted by White05X3 View Post
Is this why when you were running the SSTT you bypassed the rear boost solenoid?

The MAP tolerates a differential of .3 bar, which is about 4.2 psi. Above that, the BOV's open and bleed boost. Doesn't that suggest that BMW anticipated the car running, under certain conditions, at up to 12.2 psi?
Sorry if I told you I'd have to kill you. The answers are out there, but I made an agreement never to discuss my personal SSTT experiences.

The factory tune is programmed to allow up to say 11psi under higher inlet temps/altitude to preserve the same oxygen density one might get at lower inlet temps/altitude, but this has nothing to do with aftermarket tuners. If the tuner is setup correctly this boost markup is just passed through.

Also I think you're missing how the bypass valves work, they just open under manifold vacuum. They will hold up to 16psi as I understand it, maybe a lot more.
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      12-05-2007, 06:22 AM   #68
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I'm sold on the JB2. I'm going to buy one.
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      12-05-2007, 07:20 AM   #69
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ive bought one! ive not read a single bad thing about JB2. initailly i wanted cede cos of gains but after reading negativity and bad service and limp modes etc etc it jsut wasnt worth the money and hassle...

terry so far has been great service with prompt replies with my numerous questions on an afternoon and after a few throwback messages i ordered! easy as that...

now terry where is it??? lol. its been a few days now haha
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      12-05-2007, 09:01 AM   #70
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Quote:
Originally Posted by Terry335 View Post
If at any point the ECU determines you are running more boost than is registering on the sensor (e.g. solenoid duty cycle), it throws a limp and "turns you in". So its very important to not get those limp codes under boost as you can't clear them yourself.

Of course the JB also works the o2 sensors for more fuel, which makes the tune much better than say only adjusting the tmap, but that is another thread all together.
Even with my limited knowledge I can understand why the JB2, ProCede, Xede, Attache, etc may be a 'better' tune. I still find it interesting some BMW centers are comfortable enough with the SSTT to sell it out of their own parts departments. What is it about the TT that you suppose the dealers are so comfortable with? I'm sure it has something to do with the ease of installation without messing around in the ECU compartment and that there are no higher output versions of the TT.
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      12-05-2007, 09:30 AM   #71
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Quote:
Originally Posted by Terry335 View Post
Sorry if I told you I'd have to kill you. The answers are out there, but I made an agreement never to discuss my personal SSTT experiences.

The factory tune is programmed to allow up to say 11psi under higher inlet temps/altitude to preserve the same oxygen density one might get at lower inlet temps/altitude, but this has nothing to do with aftermarket tuners. If the tuner is setup correctly this boost markup is just passed through.

Also I think you're missing how the bypass valves work, they just open under manifold vacuum. They will hold up to 16psi as I understand it, maybe a lot more.
Thank you for your continued patience! I appreciate it very much!!!

I also appreciate you confirming what I believed to be true on the warranty issue. Your candor is admirable and worthy of tremendous respect. Thanks!

From an attorney's perspective, I believe I have a stronger argument on warranty issues if the device I install does nothing that the stock system wouldn't do under the right circumstances. Whether I ultimately win that argument or not is another question...I do think it is more compelling though.

Now back to car talk...

On the subject of afr's...somebody mentioned that the SSTT does not control fuel. While it does not offer the same level of control as the piggyback solutions, it does control fuel to a certain extent. The SSTT keeps the afr's right at the factory levels. While I agree that richer is safer under high boost conditions, I also trust the large team of engineers at BMW who designed this engine. Those people know far better than most of us do what is right for THIS motor.
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      12-05-2007, 09:34 AM   #72
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I just installed my TT and here are my observations after two days of ownership.

1. get someone around 5ft tall to install it! They have smaller arms and can get two arms into the TMAP area and can install it in less than a minute. I wasted two hours the other day

2. the gas pedal has a softer feel. Its kinda weird but I think it actually has a less jerky feeling starting from a stop. This may actually be an improvement over stock.

3. full throttle performance is a blast. My e90 is an auto and in DS mode the wheels start to break loose halfway through first gear and again when shifting into 2nd gear.

4. Yesterday, I drove from Dallas to Houston 260 miles and averaged 28.3 MPG. Overall average speed on the trip computer was 75mph which included a couple of 110mph passing runs and one stop at a taco bell.

So far so good.

BTW anyone else experience the softer gas pedal feel?
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      12-05-2007, 11:55 AM   #73
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Quote:
Originally Posted by G33 View Post
ive bought one! ive not read a single bad thing about JB2. initailly i wanted cede cos of gains but after reading negativity and bad service and limp modes etc etc it jsut wasnt worth the money and hassle...

terry so far has been great service with prompt replies with my numerous questions on an afternoon and after a few throwback messages i ordered! easy as that...

now terry where is it??? lol. its been a few days now haha
Haha it will be there soon international shipping is 6-10 days.
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      12-05-2007, 11:58 AM   #74
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Quote:
Originally Posted by White05X3 View Post
Thank you for your continued patience! I appreciate it very much!!!

I also appreciate you confirming what I believed to be true on the warranty issue. Your candor is admirable and worthy of tremendous respect. Thanks!

From an attorney's perspective, I believe I have a stronger argument on warranty issues if the device I install does nothing that the stock system wouldn't do under the right circumstances. Whether I ultimately win that argument or not is another question...I do think it is more compelling though.
Peak boost on the JB2 is also 11psi, so you could make the same argument for both systems.


Quote:
On the subject of afr's...somebody mentioned that the SSTT does not control fuel. While it does not offer the same level of control as the piggyback solutions, it does control fuel to a certain extent. The SSTT keeps the afr's right at the factory levels. While I agree that richer is safer under high boost conditions, I also trust the large team of engineers at BMW who designed this engine. Those people know far better than most of us do what is right for THIS motor.
Again I can't really discuss this in detail but to make a general statement, the car itself uses a closed loop wide band fuel system. If left to its own devices it will preserve those stock air/fuel ratios regardless of the boost level (until it runs out of injector, of course!). I also completely agree that the stock ratios are perfect for the stock oxygen density @ sea level. When you add 10-20% to that density things do change.
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      12-05-2007, 12:00 PM   #75
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Not sure if the intake is going to fit on the Crown Vic...or the JB2H
LOL.....low blow....
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      12-05-2007, 12:07 PM   #76
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Quote:
Originally Posted by Dr_Dirt View Post
I just installed my TT and here are my observations after two days of ownership.

1. get someone around 5ft tall to install it! They have smaller arms and can get two arms into the TMAP area and can install it in less than a minute. I wasted two hours the other day

2. the gas pedal has a softer feel. Its kinda weird but I think it actually has a less jerky feeling starting from a stop. This may actually be an improvement over stock.

3. full throttle performance is a blast. My e90 is an auto and in DS mode the wheels start to break loose halfway through first gear and again when shifting into 2nd gear.

4. Yesterday, I drove from Dallas to Houston 260 miles and averaged 28.3 MPG. Overall average speed on the trip computer was 75mph which included a couple of 110mph passing runs and one stop at a taco bell.

So far so good.

BTW anyone else experience the softer gas pedal feel?

congrats man.
not sure on the soft pedal feel. i am running 93 octane with auto. not sure i feel it. i will make sure to look out for it next time i go out with my car.

enjoy.
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      12-05-2007, 12:44 PM   #77
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Quote:
Originally Posted by Dr_Dirt View Post
I just installed my TT and here are my observations after two days of ownership.

1. get someone around 5ft tall to install it! They have smaller arms and can get two arms into the TMAP area and can install it in less than a minute. I wasted two hours the other day

2. the gas pedal has a softer feel. Its kinda weird but I think it actually has a less jerky feeling starting from a stop. This may actually be an improvement over stock.

3. full throttle performance is a blast. My e90 is an auto and in DS mode the wheels start to break loose halfway through first gear and again when shifting into 2nd gear.

4. Yesterday, I drove from Dallas to Houston 260 miles and averaged 28.3 MPG. Overall average speed on the trip computer was 75mph which included a couple of 110mph passing runs and one stop at a taco bell.

So far so good.

BTW anyone else experience the softer gas pedal feel?
Enjoy brother, welcome to the party

I have heard from dozens of customers who say they feel a more soft or less harsh pedal with the Turbo Tuner. I myself have not noticed it but then again I am usually beating the car to death so I doubt I would notice

As far as fuel efficiency goes, that I have noticed. I can not explain why other than at part throttle the turbos are making more boost so the car is not working as hard. But on average we get 2-4 MPG better than stock!

At any rate in answer to another question above, BMW dealerships who are selling the Turbo Tuner do so because they have been testing it themselves in general on their own vehicles for more than 6 months. It is a conservative and reliable performance improvement. The Turbo Tuner has been tested in many locations including the BMW proving grounds in SC.

The Juice box is a nice device for people who do not want to spend the money for any number of the 'edes that are out there now but want higher boost levels then we make. Although to be fair running 93+ octane the TT will hang right there with the best of them and even at 91 it does damn well in most races.

The good news is that now people have a wide choice of piggy backs available to choose from. You just need to decide which company has the combination of skills, support, reputation and experience you feel most comfortable with. In each of those categories there are some companies taht are better than others. And in each of those cases there are happy customers and un-happy customers. Mostly due to what expectations were fairly and unfairly created in the customers mind by the various companies.

As we have always said the Turbo Tuner is not in competition with any of the other devices on the market. Although they do similar things and get similar results the Turbo Tuner had a different market in mind as it was designed. From day one our intention was a device that we hoped and still do would be recognized by many car manufacturers. We are well on our way to that end though not there yet. Our second TT, for Porsche 996 and 997 turbos is currently being evaluated in Germany. With hundreds on the road it is turning out to be as big a hit as the 335 unit, although in a much smaller market. In a couple of weeks our in house testing of the latest Turbo Tuner for the 2.0 Fsi Audi, VW, Seat and Skoda engines will be completed. We look forward to the engineers from VAG whom we met with at SEMA putting it through it's paces at their test tracks in the US and in Austria.

Jeff
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      12-05-2007, 02:53 PM   #78
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Quote:
Originally Posted by Dr_Dirt View Post
I just installed my TT and here are my observations after two days of ownership.

1. get someone around 5ft tall to install it! They have smaller arms and can get two arms into the TMAP area and can install it in less than a minute. I wasted two hours the other day

2. the gas pedal has a softer feel. Its kinda weird but I think it actually has a less jerky feeling starting from a stop. This may actually be an improvement over stock.

3. full throttle performance is a blast. My e90 is an auto and in DS mode the wheels start to break loose halfway through first gear and again when shifting into 2nd gear.

4. Yesterday, I drove from Dallas to Houston 260 miles and averaged 28.3 MPG. Overall average speed on the trip computer was 75mph which included a couple of 110mph passing runs and one stop at a taco bell.

So far so good.

BTW anyone else experience the softer gas pedal feel?
Enjoy and welcome! Out of curiosity...how did the Taco Bell affect the afr's?
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      12-06-2007, 12:35 AM   #79
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Ok some more feedback about the soft gas pedal feel. Right before I installed the TT I had brought my car in for some long start issues...yes the long starts were before any mods were done.
So the dealer installed new software to correct the issue, however the long starts were still present and then they replaced the fuel pump and voila! no more long starts
After reading some other posts it appears that the softer gas pedal feel maybe related to the software update....
Just thought you all should know.
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      12-06-2007, 06:37 AM   #80
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Any TT dealers over here in Switzerland
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      12-06-2007, 03:33 PM   #81
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are there any plans for a new version of the TT to come out?
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      12-07-2007, 01:35 AM   #82
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man if split sec were to make a similar product with gains of +10-15 more hp and torque for say $100 more people would be all over it! =(
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      12-07-2007, 09:03 AM   #83
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Quote:
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are there any plans for a new version of the TT to come out?
I am comforted that the answer is no. Seems to me that if you do something right the first time there is no need to keep releasing new versions.

Jeff, please chime in on this...is there not a race gas version of the TT?
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      12-07-2007, 04:14 PM   #84
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Quote:
Originally Posted by uhcoug2011 View Post
man if split sec were to make a similar product with gains of +10-15 more hp and torque for say $100 more people would be all over it! =(
I know what you are saying! I must get 10 calls a week from customers asking about some increase in power. The simple answer is that the Turbo Tuner currently on the market is a safe and reliable bump in power. The reason that some BMW dealers feel comfortable enough to sell it is that the gains, while powerful do not put too much undue stress on the powertrain. I have read about some of our customers who have added downpipes and or a performance exhaust with a nice amount of 93+ octane are easily making another 15-20HP or more!

For us, we needed a unit that met the requirements we set for it. Good Power, Easy install, Safe and Reliable and sell for a reasonable price. The Turbo Tuner is that unit. We are very proud of the hundreds and hundreds of
happy customers we have made with the Turbo Tuner for both the 335 and the 996/997 Porsche's. Soon we will be adding the 2.0FSI Turbo vehicles by Audi, Seat, Skoda and VW

Now is there a race TT on the horizon? The best answer I can give you is, it is being worked on. What it will do, what it will cost, how much power it might make? I can't answer any of those questions at this stage. But I can say it will not run on 91 octane thats for sure and It will probably require additional cooling but time will tell.

Jeff
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      12-07-2007, 09:56 PM   #85
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Quote:
Originally Posted by Jeff@Eurobahn.us View Post
I know what you are saying! I must get 10 calls a week from customers asking about some increase in power. The simple answer is that the Turbo Tuner currently on the market is a safe and reliable bump in power. The reason that some BMW dealers feel comfortable enough to sell it is that the gains, while powerful do not put too much undue stress on the powertrain. I have read about some of our customers who have added downpipes and or a performance exhaust with a nice amount of 93+ octane are easily making another 15-20HP or more!

For us, we needed a unit that met the requirements we set for it. Good Power, Easy install, Safe and Reliable and sell for a reasonable price. The Turbo Tuner is that unit. We are very proud of the hundreds and hundreds of
happy customers we have made with the Turbo Tuner for both the 335 and the 996/997 Porsche's. Soon we will be adding the 2.0FSI Turbo vehicles by Audi, Seat, Skoda and VW

Now is there a race TT on the horizon? The best answer I can give you is, it is being worked on. What it will do, what it will cost, how much power it might make? I can't answer any of those questions at this stage. But I can say it will not run on 91 octane thats for sure and It will probably require additional cooling but time will tell.

Jeff
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Some BMW dealers sell Piggyback?!
Does it mean if I buy it from them, they know I have piggyback in my car? Are they going to flag me so that all dealers on US soil notice? or, I have the convenience for not plugging it out if I drop in my car to that particular dealer? I'm in 95014 area, could you please tell me which local dealer sells SSTT? I don't find any BMW dealers in your locator.
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      12-07-2007, 09:59 PM   #86
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Quote:
Originally Posted by Brisk View Post
bigger gains?cel and ses?


it really depends on the needs of YOU.
the turbo tuner has been out longer, has awards, is being sold by bmw dealers, and many trusted vendors.
the install is much easier even tho it is more money than the jb2.

there equal in speed and in power aswell.

do a quick search u will find all your info.
ur special.
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      12-08-2007, 12:58 AM   #87
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Quote:
Originally Posted by Leesi View Post
Some BMW dealers sell Piggyback?!
Does it mean if I buy it from them, they know I have piggyback in my car? Are they going to flag me so that all dealers on US soil notice? or, I have the convenience for not plugging it out if I drop in my car to that particular dealer? I'm in 95014 area, could you please tell me which local dealer sells SSTT? I don't find any BMW dealers in your locator.
Sorry bro but we do not yet have a BMW dealer in Norcal. However when I visit my folks for the Holidays in Millbrae at the end of the month, I have appointments with 2 BMW dealers to do demos So after the first of the year I am sure we will have at least one in NorCal. Currently in California you would have to come south the get at the dealership.

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      12-08-2007, 04:17 PM   #88
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Quote:
Originally Posted by Leesi View Post
Does it mean if I buy it from them, they know I have piggyback in my car? Are they going to flag me so that all dealers on US soil notice? or, I have the convenience for not plugging it out if I drop in my car to that particular dealer?
You haven't answered there... please
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