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      07-11-2007, 03:49 PM   #1
jgrigoros
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1/4 mile time slightly disapointed

took a drive to nappierville dragway in quebec for so fun.i was able to get 2 runs before the rain started.needless to say i wasn't to impressed with my
1/4 mile times.

1st run
rt .350
60' 2.173
1/8 8.923
1/4 13.733
mph 102.273

2nd run
rt .216
60' 2.286
1/8 8.970
1/4 13.628
mph 109.375

the only mod i have is procede everything else is stock
any thoughts on how to improve
thanks again
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      07-11-2007, 03:50 PM   #2
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Did you miss a shift on the first run? Traction will help a lot, maybe better tires.
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      07-11-2007, 03:51 PM   #3
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i was going to say those are insane for haveing such bad 60 foots, but then you said procede so it makes sense

solution learn 2 launch
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      07-11-2007, 03:53 PM   #4
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the car was gripping but what rpm do you suggest to launch?
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      07-11-2007, 03:57 PM   #5
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yah get another driver.
just kidding... id be interested to know how you could improve that.
are you driving stick? how high RPM are you dumping your clutch at?
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      07-11-2007, 03:58 PM   #6
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Quote:
Originally Posted by jgrigoros View Post
the car was gripping but what rpm do you suggest to launch?
stick? i'd say somewhere around 4k?
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      07-11-2007, 04:00 PM   #7
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the car is stick i was launching at 2500rpm even at that
there was a stock 335 there also and he ran 14.03
but he was auto
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      07-11-2007, 04:01 PM   #8
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109 mph trap speed is really good. If you are running on the stock run flats, I would launch at a low rpm. They get terrible traction.
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      07-11-2007, 04:03 PM   #9
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the tires i had were 17" bridegstone re050 nearly bald
and the were very sticky
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      07-11-2007, 04:09 PM   #10
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Quote:
Originally Posted by mantisG35 View Post
stick? i'd say somewhere around 4k?
no way, not with the proceed, well he could if he feathered the hell out of it

3k is what i launch on stock w/ a lot of feathering, also, ignore the stupid light and when you feel like it leave your engine revved @ about 1k, then when you launch bump it up to 3k and feather it right as it reaches 3k (without letting off the throttle) this gives you a little turbo spool that you wouldnt have if your just holding revs @ xk and then letting out the clutch

you should be able to get atleast 13.5 stock, so with proceed...
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      07-11-2007, 04:12 PM   #11
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What were u doing on the first run or is the 102mph trap a typo? As was already mentioned I'd be less concerned about ET as that is really experience of the driver...trap speed should be your concern and 109mph is pretty strong. I have a 6MT on stock run flats and gettin out of the hole is tough...you really have to feather the clutch and play with it but the sweet spot should be somewhere around 3,000 RPM's.
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      07-11-2007, 04:25 PM   #12
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What was the temperature that day? Any humidity? What elevation were you at? Tire pressure settings? How much drag racing experience do you have? There's a lot of small factors that could contribute to your time slips.
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      07-11-2007, 04:28 PM   #13
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why is there is a 7 MPH trap speed difference between the two runs?
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      07-11-2007, 04:31 PM   #14
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Automatic cars appear to run quicker since it's so much easier to launch.
Only thing you can do is get wider 255-275's stickier tires since your stock 17" are way too narrow for all your torque.
How many 360-380 tq. cars you know with 225 tires do well at the strip?
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      07-11-2007, 04:31 PM   #15
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your 60 ft times are terrible (no offense) Learn to improve that and you will run a low 13 at least.
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      07-11-2007, 04:32 PM   #16
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Quote:
Originally Posted by Kenny H View Post
why is there is a 7 MPH trap speed difference between the two runs?

+1
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      07-11-2007, 04:39 PM   #17
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temperature was 36 celcius humidity was 100percent
the rear tires were 245 maybe a little more practice and i would
hit low 13. i had also mentionned that an auto 335 ran 14.03
it seems a little slow
as for the trap speed pf 102 it is correct that was my first run shifting at
red line and i noticed the gar bogging everytime i would shift
second run shifting at 6000rpm and the would bolt forward
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      07-11-2007, 05:02 PM   #18
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You need to get below a 2second 60ft.

And if you don't know already, you need to short shift each gear around 6300 rpm, don't go to redline. I can consistently get 1.9 60' times. The short shifting shaves a .3 or .4 seconds compared to going to redline as well.
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      07-11-2007, 05:02 PM   #19
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get better tires (and an LSD, of course), learn to launch and shift B4 redline

(and lose some weight )
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      07-11-2007, 05:08 PM   #20
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Quote:
Originally Posted by derryck View Post
What were u doing on the first run or is the 102mph trap a typo? As was already mentioned I'd be less concerned about ET as that is really experience of the driver...trap speed should be your concern and 109mph is pretty strong. I have a 6MT on stock run flats and gettin out of the hole is tough...you really have to feather the clutch and play with it but the sweet spot should be somewhere around 3,000 RPM's.
what should a stock 335i coupe mt be trapping? I went to Moroso and could only muster a 102.9 mph.
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      07-11-2007, 05:13 PM   #21
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my second run i short shifted maybe that explains the higher trap speed
and the next time i hit the track and if my diet goes as planned i will be 5 pounds lighter and will hit a better et
thanks again
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      07-11-2007, 05:17 PM   #22
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Quote:
Originally Posted by 533ogetnom View Post
no way, not with the proceed, well he could if he feathered the hell out of it
hehe oops. i do that on the G since i dont have much torque on lower rpm. different cars, my bad
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