BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

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      08-24-2010, 01:27 AM   #45
shockin330i
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Quote:
Originally Posted by maxnix View Post
No, no parts. Engine sealed for life. Racing voids warranty and BMW monitors every track.
I hope you're being sarcastic...
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      08-24-2010, 08:12 AM   #46
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Quote:
Originally Posted by shockin330i View Post
I hope you're being sarcastic...
Why would you think that?
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      08-31-2010, 02:54 PM   #47
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I have a 2011 335i Coupe Loaner car (Auto) while my 135i is in for some recalls. Some quick comments about N54 vs. N55 that I've experienced.

The N55 feels more responsive in the lower RPM range (below 3000 rpm) in terms of initial response/thrust at the first second you are on throttle (after not being on it at all, aka, no boost). In terms of overall thrust however, the N54 feels stronger (once turbos are spooled) from around 2500-5700 rpm. Anything above 5700 rpm, the n55 feel ways stronger and pulls in a more linear fashion than the n55 (obviously due to the differences in turbo setup where the n54 more quickly feels like boost is being tapered).

Just my experience and opinion FWIW.
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      08-31-2010, 03:09 PM   #48
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Quote:
Originally Posted by scott135i View Post
I have a 2011 335i Coupe Loaner car (Auto) while my 135i is in for some recalls. Some quick comments about N54 vs. N55 that I've experienced.

The N55 feels more responsive in the lower RPM range (below 3000 rpm) in terms of initial response/thrust at the first second you are on throttle (after not being on it at all, aka, no boost). In terms of overall thrust however, the N54 feels stronger (once turbos are spooled) from around 2500-5700 rpm. Anything above 5700 rpm, the n55 feel ways stronger and pulls in a more linear fashion than the n55 (obviously due to the differences in turbo setup where the n54 more quickly feels like boost is being tapered).

Just my experience and opinion FWIW.
What you just said basically mimics the dyno chart comparisons. The N55 is stronger in the lower and higher rpms while the N54 is stronger in the middle.
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      09-04-2010, 09:10 AM   #49
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Quote:
Originally Posted by LaCroix View Post
I have no idea whether to get a brand new n55 or go for a used n54 . I picked the worst time to buy a bmw, lol.
go with the new n55.... i did
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      09-04-2010, 09:13 AM   #50
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Quote:
Originally Posted by TrackRat View Post
HP is just a mathematical derivative of torque and time. HP = T x RPM / 5250 Torque is a force. HP is the amount of work the torque can produce in a given time. More torque at any RPM point = more HP at that RPM point.

Torque is addictive and fun.
if the torque is so good why the 335d sucks at the quarter mile?
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      09-09-2010, 07:13 AM   #51
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Quote:
Originally Posted by sti917 View Post
if the torque is so good why the 335d sucks at the quarter mile?
it takes a little more that an impressive torque band to go down a track. other factors effect 1/4 mile and acceleration times such as weight, gearing in transmission and third member, power band of the motor compared to gearing, and the most important part, the nut behind the wheel. Look at the 335d times from 30-50/50-70, and you will notice that this car is relitively quick compared to it's competition. No hard feelings, and just my .02 cents worth!
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      09-09-2010, 07:17 AM   #52
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Quote:
Originally Posted by crisart View Post
I just got 2011 135i dual clutch trans and I am wondering if anyone has taken one down the 1/4 and if they make any parts for it ?
I just picked one up last weekend (135i/N55/DCT), and I am waiting to hear results too. I don't think I will do anything to my car other that a Dinan stage I tune when they become available, and a drop in air filter. I'm still breaking the car in, but I am still impressed with the effortless acceleration of this car along with the lack of drama when it happens. I'm sure that will change when I start putting the spurs to this car!
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      09-22-2010, 03:16 PM   #53
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Quote:
Originally Posted by maxnix View Post
You think 13.5 seconds sucks for a diesel?
The quickest recorded time I've seen for a 335d is 13.8@101mph

The 335i by comparison runs any where from 13.3-13.5@104-106mph depending on the source.

I think the original argument was about torque being the most important factor in acceleration but the reality is that "torque" is only part of the equation. An automobiles power to weight ratio is a far better predictor of acceleration.
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      10-10-2010, 09:07 AM   #54
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I have read post of '11 135i W/DCT going down the track in 13.2-13.3 for the 1/4 mile.... I think Shiv@vinsu quoted 13.3 as what his car with DCT could do stock. A good tune has got to put this car in the LOW 13s or high 12s... but it's just bench racing at this point. Am very curious to see a customer car with JB3 or Vinisu quote 1/4 mile times with tunes only. Really interested to hear the same info with GIAC or DINAN too.
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      10-10-2010, 11:38 AM   #55
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Quote:
Originally Posted by JimmyT View Post
I have read post of '11 135i W/DCT going down the track in 13.2-13.3 for the 1/4 mile.... I think Shiv@vinsu quoted 13.3 as what his car with DCT could do stock. A good tune has got to put this car in the LOW 13s or high 12s... but it's just bench racing at this point. Am very curious to see a customer car with JB3 or Vinisu quote 1/4 mile times with tunes only. Really interested to hear the same info with GIAC or DINAN too.
shiv ran a 12.3
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      10-11-2010, 05:40 PM   #56
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Yes he did, with tune, drag radials, and meth injection. In his post, Shiv said his '11 DCT 135 ran 13.3 stock!
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      11-04-2010, 04:10 PM   #57
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Quote:
Originally Posted by JimmyT View Post
Yes he did, with tune, drag radials, and meth injection. In his post, Shiv said his '11 DCT 135 ran 13.3 stock!

i'v ran 13.4s @ 171km/h stock '11 135 dct .. 218km/h on the 1km sprint ..
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      12-03-2010, 05:43 AM   #58
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Iwant to know what a customer car runs with tune in the 1/4 on the RFTs....
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      12-06-2010, 04:13 AM   #59
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      12-07-2010, 01:33 AM   #60
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Quote:
Originally Posted by JimmyT View Post
Iwant to know what a customer car runs with tune in the 1/4 on the RFTs....
I hit a 13.1 with just the jb3 and run flats, cut a 1.8 60ft.
Car number 335
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      12-26-2010, 12:23 AM   #61
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no lag at all 0 nada its smoothhhhhhhhhh as a bbys bu*t
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      12-27-2010, 02:09 AM   #62
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Just no traction
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      01-17-2011, 07:32 AM   #63
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13.1 is quick for a car on RFTs. The drag strips near Seattle do not open until April, so I'm just bench racing until then!!
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      02-04-2011, 11:24 PM   #64
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the turbo in the n55 is a BorgWarner B03, now we just need to find a compressor map....
http://www.dieselevante.it/turbochargers.asp?idfam=B03
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      02-04-2011, 11:39 PM   #65
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map?
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      02-05-2011, 08:24 AM   #66
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Quote:
Originally Posted by shockin330i View Post
map?

the compressor map would let us know the limits of the turbo
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