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Top speed (delimited)
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12-31-2009, 10:21 PM | #1 |
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Top speed (delimited)
Anyone know the top speed of a 330i (272bhp) or a 335i without the limiter? or any other e9x delimited?
I ask this because i managed to hit around 153-155 in 5th gear before changing to 6th so im very curious to know considering i had an entire gear left after hitting the limiter (was quite shocked and pleased) |
12-31-2009, 10:25 PM | #2 |
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The 335 is 189mph i think so far.
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01-01-2010, 04:26 AM | #5 |
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Mine pulls off the clock. 330i will pull off thr clock too.
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01-01-2010, 04:33 AM | #6 |
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6th gear is an overdrive, so just because you can hit 155 in 5th, you wouldn't go much faster in 6th. I would imagine somewhere between 160 - 165. Anything over this is dreaming. This is real speed, not what the speedo says because at these speeds the speedo will over read by between 5 - 10 mph.
Also 189 for a 335 is also dreaming. IMO 300 BHP will give a top speed around 170mph. 6th is still an overdrive. |
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01-01-2010, 05:37 AM | #7 | |
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Our cars pull off the clock tho (330,335)
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01-01-2010, 05:51 AM | #9 |
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Oh yeah deffo. To pull 190 though you would need major HP.
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01-01-2010, 07:01 AM | #10 |
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Speed & Power do not have a linear relationship. The problem is wind resistance which gets increasingly resistant the higher the speed.
Think about it. A 100 hp car does around 110 mph. A 200 hp car does around 145 mph (+35 mph) A 300 hp car does around 165 mph (+20 mph) A 400 Hp car does around 180 mph (+15 mph) A 500 hp car does around 190 mph (+10 mph) Ultimately a 1000 hp Veyron will "only" top out at 240 mph. These are all indicative numbers so please dont argue about whether a 300hp car can do 160 or 170 mph. Im trying to get the principle established. To pull (a genuine) 190 mph your going to need something well over 400 hp in a car weighing 1.5 tonnes.. |
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01-01-2010, 07:15 AM | #11 |
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I have read that a 335i has managed 189mph, but this was with a tune and obviously top speed delimit (which are available from Vishnu, Active Autowerkes and BMS soon).
I think the car would have to be running at 430+bhp to achieve those numbers - which is achievable with downpipes, CAI, FMIC and a tune. |
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01-01-2010, 07:16 AM | #12 | |
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Which is why you need massive HP to pull high speed. a Saff Cossie needed 750-800HP to pull 200mph. M5 can do it with a mere 500HP.
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01-01-2010, 07:25 AM | #13 |
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Ive seen 185 via gps the clocks were reading about 5mph more and it was still wanting to do more ,trust me though you need a long unrestricted road as its bloody scary the amount of road that you cover .
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01-01-2010, 07:57 AM | #14 |
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01-01-2010, 07:58 AM | #15 | |
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My 997 Turbo weighed around 1,585 kilos with a power to weight ratio of 0.3 bhp/kg, 133 bhp/liter. The acclaimed top speed figure given by Porsche is 193 mph. Only ever got it to 187 mph on the autobahn.........bloody traffic. |
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01-01-2010, 08:11 AM | #16 |
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01-01-2010, 08:21 AM | #17 | |
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But yeh, id imagine your right, you need alot of power to get to higher speeds. I will time it next time... I timed my TTS from 55-155, it took about 42 seconds +/- 2secs as it was raining (time based looking at the video i took) so i wonder what other e9x times are? |
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01-01-2010, 08:29 AM | #18 | |
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That 750HP one was a monster. Helen, why dont you quote it in HP/Ton. approx 300HP per ton.
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01-01-2010, 08:35 AM | #19 |
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01-01-2010, 08:55 AM | #20 |
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Metric ton, Sha mizzlay!
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01-01-2010, 11:10 AM | #21 | |
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It's not all about horsepower though. Gearing, redline and tyre profile can limit the top speed of a car, regardless of it's power. I'm really intrigued to know the answer to the original question. I would guess that the 330i could manage 170mph. Interesting to know if this has happened. The 330i is theoretically capable of 190mph and the 335i 194mph |
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01-01-2010, 11:13 AM | #22 | |
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You still need big HP to pull the high speed to overcome air resistance.
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