Turbo whine

[Dr_Jones]

I googled quite a bit last night trying to answer this question...has another car used the same TDO3? I came away with the understanding that the a lot of people dont know anything about it.

Thought it might be better to ask the obvious question...has this turbo been pushed in another application before ours.

[vgame64]

Originally Posted by twinturbo135i

okay, so I have one better for you. What happens when I pull up next to your 15 year old Supra in my old, 1987 Buick Grand National that ran high 10's in the 1/4 and then it pulls away from you? will I be able to tell you I told you so?

see where this is going? there's always a bigger fish in the sea. my point is, no one cares about talking about a Toyota car in a BMW forum.

OT: Your GNX ain't gonna be faster than

I think the lesson is: Don't expect to push your car hard with the V3 or JB3 and expect it to last forever...8.8 psi to 16-18psi is going to cause wear a lot faster.

[Evolved]

Originally Posted by twinturbo135i

my point is, no one cares about talking about a Toyota car in a BMW forum.

Thank you for continuing to live up to the stereotype.

[Dr_Jones]

to quote vgame64 from the e90 post...



back to the turbos please

[twinturbo135i]

Originally Posted by vgame64

OT: Your GNX ain't gonna be faster than

that's a sweet video. too bad Toyotas don't do squat for me. even if they're popular with the ricer crowds. lol

so while we're at it, here's one of my favorite GN videos. You know you've got some serious HP when you smoke the tires on a dyno run.

[rcracer_tx]

Originally Posted by martinsmu

In the 1addicts section? If so can you link me to it? I looked and found nothing.

I can't find the link...It was soon after the e90post thread was started though

Originally Posted by M3_Dust

just get a supra, the N54 will NEVER make big power, the block is just not engineered for it

Care to enlighten us how the engine will "never make big power" with your infinite knowledge?

Originally Posted by twinturbo135i

the real question is, why the hell do we keep bringing up these damn Supra cars? last time I checked this was a BMW forum and not some rice burning, Toyota forum.

jeez.....

Originally Posted by twinturbo135i

that's a sweet video. too bad Toyotas don't do squat for me. even if they're popular with the ricer crowds. lol

LOL, you sound like a douche bag BMW owner that Jeremy Clarkson Describes on his show. If you had ever worked on or owned a supra, and knew anything about cars, you would see the quality in it. The ENTIRE car is built better than BMW. If Toyota built the supra with today's technology available, it would make a BMW look like a POS 1980's domestic car.

I could say nobody cares about a red 135i owners opinion with stupid looking front windshield tint, and ricey CF parts bolted on it, But why be an asshole? Learn to have some respect for cars that are as nice as yours, are more over engineered. Have some respect for more reliable Japanese cars...

[rcracer_tx]

Adding to the post on subject, I think everyone is worried about turbo failure at high PSI. I am addressing this with upgraded turbos that will allow me not only to make more HP, but be more reliable as well.

[boostin]

Originally Posted by rcracer_tx

Adding to the post on subject, I think everyone is worried about turbo failure at high PSI. I am addressing this with upgraded turbos that will allow me not only to make more HP, but be more reliable as well.

i completely agree with your supra post above this one, but to stay on topic, that is what i'm talking about; larger turbos for not only more power, but to be able to run more boost without these turbo-whine problems. its seems pretty obvious BMW made the turbos small for a reason; to maximize usable torque throughout the powerband. however, they're too small to increase the boost >15psi without having failures. we need AMS' turbo kit (or another company), plain and simple.

[twinturbo135i]

Originally Posted by rcracer_tx

LOL, you sound like a douche bag BMW owner that Jeremy Clarkson Describes on his show. If you had ever worked on or owned a supra, and knew anything about cars, you would see the quality in it. The ENTIRE car is built better than BMW. If Toyota built the supra with today's technology available, it would make a BMW look like a POS 1980's domestic car.

I could say nobody cares about a red 135i owners opinion with stupid looking front windshield tint, and ricey CF parts bolted on it, But why be an asshole? Learn to have some respect for cars that are as nice as yours, are more over engineered. Have some respect for more reliable Japanese cars...

<yawn>

you guys need to get a life and don't get so offended just because I don't care about Japanese cars. I could understand if you had posted a picture of your wife and I said something bad about the way she looks. but come on, we're talking about freakin' cars on a car forum.

so you don't like Crimson Red 135i cars? okay, so what... that doesn't mean I'm gonna start calling you a douche bag. I'm too old for that type of behavior.

good Lord....... it'd be one thing had I went to a Supra specific forum and start bad mouthing those cars but I didn't. I'm expressing my opinion about a Japanese sports car on a BMW chat forum. and for that, I get hailed on by a few little babies that need their diapers changed.

again, get a life.......

[twinturbo135i]

Originally Posted by boostin

however, they're too small to increase the boost >15psi without having failures. we need AMS' turbo kit (or another company), plain and simple.

actually if you think about it, how much more boost do we need on a stock engine? sooner or later something's gonna break if the wicks keep getting turned up on our cars.

[boostin]

Originally Posted by twinturbo135i

actually if you think about it, how much more boost do we need on a stock engine? sooner or later something's gonna break if the wicks keep getting turned up on our cars.

no all i'm saying is run a larger turbocharger(s) at the same psi thats being run right now with JB3 etc. (around 15ish?). it will generate more power and won't be running at its limit, therefore making it last longer.

[twinturbo135i]

Originally Posted by boostin

no all i'm saying is run a larger turbocharger(s) at the same psi thats being run right now with JB3 etc. (around 15ish?). it will generate more power and won't be running at its limit, therefore making it last longer.

that makes sense.

[rcracer_tx]

Originally Posted by boostin

no all i'm saying is run a larger turbocharger(s) at the same psi thats being run right now with JB3 etc. (around 15ish?). it will generate more power and won't be running at its limit, therefore making it last longer.

The stock engine boost 6-8lbs. The jb3 boost 13-14 on the high boost maps (excluding the race map which is 14-16)

[rcracer_tx]

Originally Posted by twinturbo135i

<yawn>

you guys need to get a life and don't get so offended just because I don't care about Japanese cars. I could understand if you had posted a picture of your wife and I said something bad about the way she looks. but come on, we're talking about freakin' cars on a car forum.

so you don't like Crimson Red 135i cars? okay, so what... that doesn't mean I'm gonna start calling you a douche bag. I'm too old for that type of behavior.

good Lord....... it'd be one thing had I went to a Supra specific forum and start bad mouthing those cars but I didn't. I'm expressing my opinion about a Japanese sports car on a BMW chat forum. and for that, I get hailed on by a few little babies that need their diapers changed.

The reason why people are angry at you is you are the perfect example of the Stereotype of the asshole BMW owner that believes that he is somehow superior in every way possible because he owns a BMW. Your remarks came off as very snobbish, which not only I saw but others as well like Evolve.

[twinturbo135i]

^ oh please...... get over it. Jesus Christ.

[Canexican]

Originally Posted by twinturbo135i

actually if you think about it, how much more boost do we need on a stock engine? sooner or later something's gonna break if the wicks keep getting turned up on our cars.

Most cars that are turbo'd like the 135i and more notoriously, the Evo, come very rich from the factory to protect the motor, but more-so to meet specific marketing criteria for a horsepower rating. If you lean out the mixture and add a few more pounds of boost, its not gonna kill the motor. I'm at nearly 52,000 miles on my tuned '06 Evo and I beat the snot out of it on a daily basis...no motor or turbo problems whatsoever *knocks on wood*. If anything, the clutch and/or tranny go before the motor.

[twinturbo135i]

Originally Posted by Canexican

Most cars that are turbo'd like the 135i and more notoriously, the Evo, come very rich from the factory to protect the motor, but more-so to meet specific marketing criteria for a horsepower rating. If you lean out the mixture and add a few more pounds of boost, its not gonna kill the motor. I'm at nearly 52,000 miles on my tuned '06 Evo and I beat the snot out of it on a daily basis...no motor or turbo problems whatsoever *knocks on wood*. If anything, the clutch and/or tranny go before the motor.

have you increased the boost levels on your Evo from stock? If so, by how much?

[Canexican]

Originally Posted by twinturbo135i

have you increased the boost levels on your Evo from stock? If so, by how much?

Honestly, with the tune I have its sometimes difficult to determine - especially because my stock boost gauge only reads in BAR. However, from what I can decipher its about 2lbs of boost higher than stock (~23psi).

Characteristically though, 23lbs is pretty common for an Evo and 21lbs is stock. Its not uncommon at all for people to run up to 30psi on the stock block. Up to about 25lbs or so without some sort of Meth/Water injection.

But, like I said, most of the time its the driveline that suffers the consequences of the increased boost, not the motor. Its not like you are increasing boost to a motor that was engineered to be n/a. It was built for boost, so don't be afraid to run a few more pounds - just be sure that you are adding enough fuel (that is where the tune comes in) and you'll be fine.

[twinturbo135i]

Originally Posted by Canexican

Its not like you are increasing boost to a motor that was engineered to be n/a. It was built for boost, so don't be afraid to run a few more pounds - just be sure that you are adding enough fuel (that is where the tune comes in) and you'll be fine.

see, that's where I have a hard time understanding that because I'm old school. old school as in when I had my '87 Grand National, those engines were very low compression (as in 8.5:1) V6's that were known to be just about bullet proof.

the N54 has something like 10:1 compression ratio on top of being assisted by the twin turbos. I still have a hard time understanding how can an engine that comes stock with such high compression can withstand having even more stress when the boost kicks in. I'd be curious to see how high the compression levels are once the engine goes in to full boost.

so I have to give it to the Germans. they obviously know what they're doing and they do it extremely well.

[Canexican]

Originally Posted by twinturbo135i

the N54 has something like 10:1 compression ratio on top of being assisted by the twin turbos. I still have a hard time understanding how can an engine that comes stock with such high compression can withstand having even more stress when the boost kicks in.

The reason why the N54 doesn't go boom with a high compression ratio is because it utilizes direct injection. When fuel is injected directly into the cylinder, it naturally cools the cylinders allowing for more aggressive timing and thus, greater output. Its really the same principle behind any type of Methanol/Water injection. Cooling the cylinders results in greater thermal efficiency and allows the addition of more boost.

Oh, and the compression ratio of a motor doesn't change. Compression ratio is the difference in cylinder volume between when a piston is at the bottom of its stroke to when it is at its highest.

[Evolved]

Originally Posted by Canexican

Most cars that are turbo'd like the 135i and more notoriously, the Evo, come very rich from the factory to protect the motor, but more-so to meet specific marketing criteria for a horsepower rating. If you lean out the mixture and add a few more pounds of boost, its not gonna kill the motor. I'm at nearly 52,000 miles on my tuned '06 Evo and I beat the snot out of it on a daily basis...no motor or turbo problems whatsoever *knocks on wood*. If anything, the clutch and/or tranny go before the motor.

The difference is that the these guys are doubling their psi. With the Evo we're not adding that much more over stock but doubling it will definitely cause the turbos to fail far earlier than if they stayed with the stock tune.

[Canexican]

Originally Posted by Evolved

The difference is that the these guys are doubling their psi. With the Evo we're not adding that much more over stock but doubling it will definitely cause the turbos to fail far earlier than if they stayed with the stock tune.

Holy crap, I didn't realize that stock boost was only 8.8 psi. Increasing boost by 10psi is pretty ridiculous on stock turbos - especially with how small they are. I personally wouldn't want to increase it more than 6psi over stock.