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335i coupe breaks 400 whp!

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Old Nov 5, 2007 | 10:37 PM
  #16  
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anyone know if the 335 coupe xi (awd) would be a better launching/handling car?

what exactly did that guy do to his car? just chip? what are the chances of the car breaking down with just that chip? im sure it completley voids the engine warranty, right?

man, i was thinking of the M3, IS-F or C63, but am now seriously considering this car as I will probably never need to push the handling limits of those cars and the handling of the 335i is phenominal for street driving.


IS 350 is soooooooooooooooooo boring to drive
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Old Nov 5, 2007 | 10:50 PM
  #17  
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what boost was he running at and afr's? 400whp is nice and dandy, but the key as picus alluded to is its safety factor...
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Old Nov 6, 2007 | 12:47 AM
  #18  
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Good stuff, I read this earlier today.
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Old Nov 6, 2007 | 05:14 AM
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Originally Posted by UberNoob
just wondering, is there still that overheating issue going on with these chips?
especially running at 400whp on stock?
Not really. The few cars that overheated were mostly cars without the secondary oil cooler. It's being put in all the cars now. The xede's make the car run richer, and generally they actually help it run cooler.

Originally Posted by NINEZeRO
anyone know if the 335 coupe xi (awd) would be a better launching/handling car?

what exactly did that guy do to his car? just chip? what are the chances of the car breaking down with just that chip? im sure it completley voids the engine warranty, right?
Yes, a chip (well, a piggyback). Who knows what the chances are of it breaking down, it's all brand new. Yes, if BMW finds it they will void your warranty.

Originally Posted by ST430
what boost was he running at and afr's? 400whp is nice and dandy, but the key as picus alluded to is its safety factor...
He won't say. We know the boost and afr's for V2, but this 400hp thing is new.
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Old Nov 6, 2007 | 05:21 AM
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Originally Posted by rotaryrock
http://www.e90post.com/forums/showthread.php?t=93865

Pretty impressive on stock internals, even if it's with 98 octane
lol read post #4
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Old Nov 6, 2007 | 05:26 AM
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Good stuff I can't wait to see a 335i with a Dual Ball Bearing 70 series turbo and supporting mods, it will hurt a lot of feelings and egos.
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Old Nov 6, 2007 | 06:00 AM
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Originally Posted by GSteg
i think it's a great acheivement honestly. Yes the poopra engine can handle more power due to the cast iron block and closed deck design, but 400whp on an aluminum open deck block is still damn good. Just like the supra, the stock twins will be maxing out around 400-450whp. It's not set in stone, but dont expect to get much more power out of the turbos
Originally Posted by picus
No you're right; it's going to be very hard to get more than 450rwhp out of turbos the size of a cigarette pack. I think the tranny will go before the block, but people are going to need to put in larger turbos before we even get there.
They are tiny turbos and they weren't meant for HP queen applications. They were meant for low end grunt with little/no lag.
Are the turbos sequential?
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Old Nov 6, 2007 | 06:04 AM
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Originally Posted by lexusondubs
lol read post #4
pretty much what I was thinking, these gains are nice and all but it calls into question how long the engine components can take the punishment
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Old Nov 6, 2007 | 06:39 AM
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This is nice.. I am still stock and still learning about these cars.
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Old Nov 6, 2007 | 09:53 AM
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Originally Posted by Koma
They are tiny turbos and they weren't meant for HP queen applications. They were meant for low end grunt with little/no lag.
Are the turbos sequential?
No, they are both the same size and spin simultaneously. And yes, the reason I won't change them is I like the low grunt and lack of lag. I could get more hp, but I am happy with what I have now and how it is delivered.

Last edited by picus; Nov 6, 2007 at 10:05 AM.
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Old Nov 6, 2007 | 10:16 AM
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So it looks like the 335i engine certainly has more modding potential than the M3 engine. It's kind of ironic that BMW did this.
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Old Nov 6, 2007 | 10:36 AM
  #27  
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Seriously, once this engine gets in every BMW product, it may replace the VQ as the most flexible and best engine around.

The VQ and Toyota/Lexus 3.5 simply do not respond to mods as well.
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Old Nov 6, 2007 | 10:43 AM
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Originally Posted by 1SICKLEX
Seriously, once this engine gets in every BMW product, it may replace the VQ as the most flexible and best engine around.

The VQ and Toyota/Lexus 3.5 simply do not respond to mods as well.
Part of this has to do with the fact that Toyota is so secretive and restrictive when it comes to engine codes, ECU info, and overall engine specifics. Toyota isn't very open to the aftermarket with their powertrain engineering.

BMW, Nissan, and Honda are more open and that is why their engines respond better to mods.

Many Toyota engines in theory can and should respond well to mods, for instance the 2GR-FSE. With limited aftermarket we just don't know, that's the problem.
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Old Nov 6, 2007 | 10:45 AM
  #29  
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^^^I agree. Can we get a damn chip like Audi? Now make no mistake, the Lexus 3.5 with dual VVTi is the strongest stock 3.5 engine out there. However, there are those that would like some more power.

It doesn't feel like its near out of breathe at any time. I am sure there is an extra 50hp in there easy.
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Old Nov 6, 2007 | 10:49 AM
  #30  
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Originally Posted by 1SICKLEX
Seriously, once this engine gets in every BMW product, it may replace the VQ as the most flexible and best engine around.

The VQ and Toyota/Lexus 3.5 simply do not respond to mods as well.
Keep in mind the rumor for the next 7 is a twin turbo 4.0l V8. If that is true it will probably find its' way into the 5 as well. Could respond as well as the 3.5 with maybe a bit more potential.
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