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335xi with PROcede
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02-16-2007, 01:45 PM | #1 |
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335xi with PROcede
335xi with PROcede .... Does this sound like fun to anyone else?? I think my next car might be just that.
What are the reasons to NOT do this? Can the XI drivetrain handle the extra power? I have searched, and nobody has discussed this yet The sedan comes out in march, and the 335xi coupe comes out in sept. ! |
02-16-2007, 02:46 PM | #3 | |
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I remembered seeing this before: "No doubt the 335Xi will be a good platform to tune. But unless you drive in inclimate weather often, I don't see the reason to add all the extra weight to the car. In the case of the Evo and Suby, AWD is used to improve the handling and balance of an inherenly imbalanced layout. In the case of the well-balanced 3 series, AWD just makes things work. Unless you live in the snow belt, of course, where the need for max traction takes precidence over handling balance. cheers, shiv" http://www.e90post.com/forums/showth...ighlight=335xi Later! |
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02-16-2007, 04:38 PM | #4 |
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so you dont thing that AWD will help in getting all that power to the ground? my 335 spins its tires way too much right now... and even BMW's official 0-60 numbers for the 335xi show it being a few ticks faster to 60, meaning it probably hooks up better, even on dry ground
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02-16-2007, 04:43 PM | #5 | |
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02-16-2007, 05:39 PM | #7 |
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02-16-2007, 05:51 PM | #8 |
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all speculation.
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02-16-2007, 06:06 PM | #10 |
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no speculation would be saying that the 335i is faster than the xi
AWD or part AWD has more drivetrain loss than RWD AWD has better launching capabilities, thats a fact also i didnt underline those words, i just randomly chose words to use to link to previouse threads on this topic, that might be why your confused, ill pikc diffrent words i think everyone missed that
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02-17-2007, 02:52 AM | #11 |
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So much of what makes a 3-series so great is the RWD and near 50/50 weight distribution. The corresponding balanced handling, steering feel, and overall performance are what have kept it ahead of the competition for decades.
Adding drive the the front wheels makes it have front-biased weight, more weight overall, more driveline loss, and takes away some of the steering feel, plus costs more. I say get the non Xi and with the $2K you save get a set of 17" wheels mounted with excellent snow tires. You will get around better in the winter than you do with the AWD and crappy all-season tires, and then when the weather turns good you go back to summer tires and the ultimate sports sedan.
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02-17-2007, 04:21 AM | #12 |
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02-17-2007, 11:34 AM | #13 | |
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02-17-2007, 11:47 AM | #14 |
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I have PROceed 6MT sedan and have no problem launching the car hard from a dead stop or mashing the throttle on a 1st gear roll-ons with limited or no wheel spin....and I haven't even touched the DTC/DSC button!
I'm in SoCal and the weather is temperate. I think the people who can't control the wheel spin on their stock 335's are probably in much colder weather and I think it affecting traction for our run-flats. No doubt the 335xi would make it easy to hook up from a stop, even in inclement whether. However a decent driver and temperate whether, I think the RWD models are capable of sub 2.0 60 foot times.
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02-17-2007, 12:12 PM | #15 |
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that might be why, if you dont touch it, that meens its on fully -lol
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02-17-2007, 12:37 PM | #17 | |
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I am also in a warm climate. It is 80ish here. If I do a 5 mph roll and floor it, my car will light up the back tires in first gear when the turbos hit. (It is actually quite neat If I have the DTC on, it will flash the yellow warning light and cut power. The DTC cuts in strongly if you get on it and spin the tires going into second gear. You slow down as if someone threw out an anchor My car is stock, not one with the PROcede. Longboarder, how much power did your car show on the dyno? Does it flash the yellow warning light when you do a power launch? I think that it is odd that your car doesn't spin the tires on launch or on a rolling launch. Have you tried launching after pressing and holding the DTC button for several seconds until the yellow warning light displays in the instrument cluster? This deactivates the DTC. |
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02-17-2007, 01:02 PM | #18 |
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No Procede for 335xi yet
I called the Vishnu guys the night I order my 335xi and they said that the current unit should work but won't know until a customer brings in his car.
My car is not here til May so I hope someone with an XI will visit Vishnu. The XI is 220 pounds heavier than the RWD.....does anyone know the effect of an extra 100 pounds on E/T and Trapspeeds?
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02-17-2007, 01:52 PM | #19 | |
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People will tell you that for every 100 pounds add .1 second and about 1 mph. That's not exactly correct however. Adding 100 pounds to a 125 hp 2500 pound car is going to have a greater effect on the car than adding 100 pounds to a 600 hp 3000 pound car. The 100 pounds added = .1 second "theory" is a reasonably good "average" for the "average" powered and weighted car. |
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02-17-2007, 03:23 PM | #20 |
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A rough estimate is that 100 lbs is worth about 10 horsepower. I think the bigger disadvantage of the AWD would be the driveline loss.
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02-17-2007, 03:32 PM | #21 | |
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I am trying to organize an airfield run in the spring so some M5 / M6's can humilate some Gallardos so if I am able to get the event going (i.e. rent the airfield, a big if at this point), I will invite some E90 335i / xis and see how they run against each other at high speeds..... Also have there been any comparisons between Quattro and X-Drive? My understanding was that XDrive was not always engaged and therefore don't suffer the parasitic loses that Quattro suffers from (one of Gallardo's main downfalls at high speeds)
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02-18-2007, 11:41 AM | #22 | |
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My car dyno'd with only 500 miles on it and did very well for being on 91 octane - from 271/279 to 327/365. Right after the PROceed install/dyno, I took my car out for a 20 minutes test drive as Shiv asked everyone to do. After driving around for 5 minutes, I decided to punch it on a first gear roll-on (without touching DSC/DTC to see how the system would engage). To my utter amazement, the car completely hooked up with no DTC/DSC light flicker....shift to second and the car just kept pulling like a rocket. I told the other guys about my experience and the consensus was that the light probably did flicker but I didn't notice it because I went through first gear so quickly. Ok maybe, I thought. So the next day, I was on PCH between the Laguna Beach/Corona del Mar corridor and got caught at a light. I revved to about 1,500 RPM and quickly modulated the clutch/throttle and floored it. This time, my eyes were fixated on the dash...and I noticed the DTC/DSC light flickered however only for a split second and didn't disrupt acceleration...or otherwise said, traction held entirely through first gear. Then I shifted to second at redline and kept it WOT with no DTC/DSC flicker. I've done a number of hard runs since then and the only time DTC/DSC fully engaged was when I was accelerated WOT through first gear in a 45 degree angle right hand corner. Power was abruptly cut and the car shook rather violently and like you said, felt like someone threw out an anchor. I haven't played with the DTC/DSC button yet because I haven't needed to. Now another theory I have as to why I'm getting such good traction is that the roads here in Orange County are flat and relatively new...so perhaps I am benefitting from that attribute combined with the warm weather...heck it was 85 degrees yesterday.
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