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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 > COBB + RB Turbo Fun: 105 - 200 km/hr - ~8secs?? :)



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      06-15-2011, 12:09 AM   #23
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heh, not where were from..... i wish tho
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      06-15-2011, 01:27 AM   #24
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Originally Posted by RnmEvo9 View Post
I come from an Evo9 which made 414awhp and 404awtq on a dynojet and still on stock turbo at 29psi. It was a very fun daily driver.

To the topic creator: your car moves on low boost lol.
WOW those turbos can run .... Anyway that sort of power can be made with 16-17psi with the BMW.
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      06-15-2011, 03:13 AM   #25
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WOW those turbos can run .... Anyway that sort of power can be made with 16-17psi with the BMW.
I would hope so considering we have an extra liter, 2 more cylinders and another turbo to boot. We run 19psi stock as well. Man I don't even know why I brought this up, but just mentioning it makes me want to get another Evo and run E85 all over again. Nothing like lighting up all 4 tires in the street.
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      06-15-2011, 06:00 AM   #26
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Awesome video. OP your car is going to be a bigger beast with Cobb Stage 2 or ATR.
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      06-15-2011, 06:02 AM   #27
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Originally Posted by dzenno View Post
there's an airport strip event this saturday that I'm planning to attend, hopefully will bring you some runs against a few E92 supercharged M3s, a couple GT3 RS, a Ferrari 458 Italia and a few other exotics unless they chicken out and don't line up lol jks
Damn damn damn, I so want to go to this event but I will be golfing in Montreal. The car is going to be back up to tip top shape as well.

Good luck Dzenno, bring your vbox and vid some runs! Awesome stuff, cant wait to see your results.
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      06-15-2011, 06:18 AM   #28
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Originally Posted by dzenno View Post
there's an airport strip event this saturday that I'm planning to attend, hopefully will bring you some runs against a few E92 supercharged M3s, a couple GT3 RS, a Ferrari 458 Italia and a few other exotics unless they chicken out and don't line up lol jks
wheres the event dzenno?
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      06-15-2011, 07:53 AM   #29
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Originally Posted by venom3469 View Post
whats that thing putting down on a dyno?
no idea probably around 380-400 on pump, no idea, maybe I'll dyno it lol

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Originally Posted by Tuner1984 View Post
Awesome video. OP your car is going to be a bigger beast with Cobb Stage 2 or ATR.
more boost more fun

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Originally Posted by Irishace View Post
Damn damn damn, I so want to go to this event but I will be golfing in Montreal. The car is going to be back up to tip top shape as well.

Good luck Dzenno, bring your vbox and vid some runs! Awesome stuff, cant wait to see your results.
this will be an awesome outing man, but golfing could be exciting too with a few beers on tap

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wheres the event dzenno?
London, ON
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      06-15-2011, 09:30 AM   #30
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Its funny how people are comparing boost between cars. That's the most ridiculous thing I've heard in a long long time. Air is a fluid. Boost is nothing more than resistance to flow! That's it! It tells you ABSOLUTELY nothing about how two different engines outputs compare if they have the same amount of boost. Quit comparing boost values from Evos to our cars and saying that our engines run low boost.

Go boost a Toyota Corolla LS and see that the con. rods on those engines begin to twist at 6psi. Now all of a sudden N54 running 14.5psi is insane amount of boost.

Long story short: boost values should not be used for comparing engines. Period!

OP: nice video. I hope you sort out that misfire problem of yours soon!
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      06-15-2011, 09:37 AM   #31
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Originally Posted by vasillalov View Post
Its funny how people are comparing boost between cars. That's the most ridiculous thing I've heard in a long long time. Air is a fluid. Boost is nothing more than resistance to flow! That's it! It tells you ABSOLUTELY nothing about how two different engines outputs compare if they have the same amount of boost. Quit comparing boost values from Evos to our cars and saying that our engines run low boost.

Go boost a Toyota Corolla LS and see that the con. rods on those engines begin to twist at 6psi. Now all of a sudden N54 running 14.5psi is insane amount of boost.

Long story short: boost values should not be used for comparing engines. Period!

OP: nice video. I hope you sort out that misfire problem of yours soon!
I'm a bit tired of repeating that

What you missed though is mentioning CFM (volume of air coming out) and how psi with smaller turbos doesn't equal psi on bigger turbos...me running 13.5-14psi with RBs is about a 50-70whp difference from stock turbos with lower EGTs...there's a lot to be said...
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      06-15-2011, 12:57 PM   #32
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completely off topic dzenno & irish we should hit the links some time soon that's gonna be a solid 4 hrs of n54 discussions with some golf stuff in betwen

Quote:
Originally Posted by dzenno View Post
no idea probably around 380-400 on pump, no idea, maybe I'll dyno it lol



more boost more fun



this will be an awesome outing man, but golfing could be exciting too with a few beers on tap



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      06-15-2011, 01:17 PM   #33
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completely off topic dzenno & irish we should hit the links some time soon that's gonna be a solid 4 hrs of n54 discussions with some golf stuff in betwen
I'm in
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      06-15-2011, 01:20 PM   #34
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Quote:
Originally Posted by vasillalov View Post
Its funny how people are comparing boost between cars. That's the most ridiculous thing I've heard in a long long time. Air is a fluid. Boost is nothing more than resistance to flow! That's it! It tells you ABSOLUTELY nothing about how two different engines outputs compare if they have the same amount of boost. Quit comparing boost values from Evos to our cars and saying that our engines run low boost.

Go boost a Toyota Corolla LS and see that the con. rods on those engines begin to twist at 6psi. Now all of a sudden N54 running 14.5psi is insane amount of boost.

Long story short: boost values should not be used for comparing engines. Period!

Using PSI as a unit of power is about as good as using compression ratio as an indication of hp. "My Honda civic R is better than your Corvette ZR1 because it has a compression ratio of 11.0:1 while your mullet mobile only has a cr of 9:1. See you on the track, loser!"

I'm actually agreeing with Vasil 100%. What is this world coming to?
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      06-15-2011, 01:26 PM   #35
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Quote:
Originally Posted by vasillalov View Post
Its funny how people are comparing boost between cars. That's the most ridiculous thing I've heard in a long long time. Air is a fluid. Boost is nothing more than resistance to flow! That's it! It tells you ABSOLUTELY nothing about how two different engines outputs compare if they have the same amount of boost. Quit comparing boost values from Evos to our cars and saying that our engines run low boost.

Go boost a Toyota Corolla LS and see that the con. rods on those engines begin to twist at 6psi. Now all of a sudden N54 running 14.5psi is insane amount of boost.

Long story short: boost values should not be used for comparing engines. Period!

OP: nice video. I hope you sort out that misfire problem of yours soon!
CFM is different. You are right.
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      06-15-2011, 03:49 PM   #36
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      06-15-2011, 10:57 PM   #37
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dzenno you have any info on this london event? im down!
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      06-15-2011, 11:46 PM   #38
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dzenno you have any info on this london event? im down!
+1
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      06-16-2011, 12:11 AM   #39
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105-200km/hr in 8 seconds is probably around a low 9 second 60-130mph run

On my 7.28 second 60-130mph run I entered 105-200km hr in the settings instead, and it came out to 6.03 seconds.
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      06-16-2011, 06:28 AM   #40
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105-200km/hr in 8 seconds is probably around a low 9 second 60-130mph run

On my 7.28 second 60-130mph run I entered 105-200km hr in the settings instead, and it came out to 6.03 seconds.
Nice to compare with higher boost and nitrous...
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      06-16-2011, 08:16 AM   #41
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Quote:
Originally Posted by dzenno View Post
Nice to compare with higher boost and nitrous...
The 7.28 was during a 1/4 mile run with normal automatic shifting at redline. But to put things in perspective, your time in the video is about as quick as my times on 15psi and meth. My 9.0x runs required 17psi. You will find that dropping a full second or two will be harder than you think. But can't wait to see some RB turbo times in the 60-130 sticky to see the improvements!
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      06-16-2011, 08:37 AM   #42
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The 7.28 was during a 1/4 mile run with normal automatic shifting at redline. But to put things in perspective, your time in the video is about as quick as my times on 15psi and meth. My 9.0x runs required 17psi. You will find that dropping a full second or two will be harder than you think. But can't wait to see some RB turbo times in the 60-130 sticky to see the improvements!
You have to realize you're talking peak boost as well...your boost curves don't look anything like what Cobb stage 1 is running..in your case you're holding 15psi to redline (from n54tech logs I looked at)...in case of Cobb they are at 14psi at 4500rpm, 13.5psi at 5500rpm, 13psi at 6000rpm, 12.5psi at 6500rpm, 12psi at 7k rpm...if it held 15psi flat to redline, well who knows but you get the point...another thing is I really didn't try to pull off any record runs, I was driving through Mexico had my iPhone in my hand no traffic and thought hey why don't I record a pull started a pull at 105km/hr from "cruising" and lost a bunch of time building boost and timing and ramping acceleration up from there...had I really tried to pull off the best time I could it would've been way better to accelerate in 3rd gear from about 3500rpm so full boost and timing is there and already accelerating while hitting 105km/hr...you know what I'm talking about maybe try setting up your car with a boost curve like the cobb stage 1 and run the car and post a video Add about 4deg of CPS offset on top of that as well as Cobb targets 10deg at redline, oh and if you really want to compare dial your AFRs so they're mid to low 12s through midrange and high 11s 6k rpm to redline

No worries, I'll try to have a few more videos over the coming days when I make it down to Mexico..

Last edited by dzenno; 06-16-2011 at 08:48 AM.
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      06-16-2011, 08:50 AM   #43
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The 7.28 was during a 1/4 mile run with normal automatic shifting at redline. But to put things in perspective, your time in the video is about as quick as my times on 15psi and meth. My 9.0x runs required 17psi. You will find that dropping a full second or two will be harder than you think. But can't wait to see some RB turbo times in the 60-130 sticky to see the improvements!
From the RB reviews I've read it seems indeed that the performance of those turbos at pump gas levels is comparable to stock turbos + meth and high boost.

Perfect in my book as I don't want to run meth in my car
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      06-16-2011, 08:52 AM   #44
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From the RB reviews I've read it seems indeed that the performance of those turbos at pump gas levels is comparable to stock turbos + meth and high boost.

Perfect in my book as I don't want to run meth in my car
plus the pull after 6000 rpm and after 200 kmh which is completely different than stock turbos.
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