|
|
|
11-15-2011, 01:28 PM | #2 |
Colonel
140
Rep 2,234
Posts |
keep revs at 3k, drop the clutch and modulate throttle accordingly to eliminate wheel spin
__________________
"I would quote everything pixelblue said, but you've already read it. Take it from someone who's put the 1 through its paces"
|
Appreciate
0
|
11-15-2011, 01:34 PM | #3 |
Slo'est E90 around
36
Rep 300
Posts |
What is your 60' time? I would expect a decent 60' to be around 1.8 - 1.9 with street tires. Will also depend on what clutch, tires, suspension. Are you bogging or getting too much wheel spin?
You probably already know this, but just in case..... You try and achieve a little balance of wheel spin vs bogging, in my experience, it's a tire screech without going to a full blown burnout. Just my $.02, haven't taken out the 135i to the strip, but have done so with quite a few other cars all F/I. 1.81 with the 03 cobra with stock tires and a 1.69 for the STI with stock tires and exhaust. Understand the STI is awd though..... Last edited by TEAM SLO; 11-16-2011 at 01:23 PM.. |
Appreciate
0
|
12-01-2011, 10:22 AM | #6 |
Colonel
141
Rep 2,604
Posts
Drives: G80 Comp XDrive
Join Date: Jul 2010
Location: Chicago
|
I launch like I would leave a stoplight, low in the rpm range, just do everything a little faster. That's on street tires, some Mickey Thompsons would be key if you want to drop down to 1.8s or better.
|
Appreciate
0
|
12-24-2011, 02:09 PM | #8 |
Captain
8
Rep 704
Posts |
The trick is avoiding wheel hop AND avoiding too much bog. I find that launching with a slight amount of wheelslip to where the car is just about to bog and then going WOT gets the fastest 1st and 2nd gear.
The surface also plays a big factor of course. Make sure your tires are warm. Try holding your revs around 2,800RPM and let the clutch out fast without dropping it (to not shock the tires). As you are letting the clutch out feed some throttle in. By the time you are 100% engaged you should be 100% throttle. This whole process only takes about 3/4 of a second. The results should be a clean launch with slight wheelspin and NO wheelhop. |
Appreciate
0
|
01-19-2012, 06:26 AM | #10 |
Colonel
122
Rep 2,695
Posts |
Click on the link in my sig for tips.
__________________
.-=[ Kenny ]=-. 1999 BMW M Coupe 10.775 @ 134.35 mph w/1.600 60' (Best 136.07 mph) 25th August 2004. +2010 X5 35D+
Check out the 1Addicts Drag Racing Standings and Drag Racing 101. |
Appreciate
0
|
01-20-2012, 02:18 PM | #11 |
Private First Class
10
Rep 190
Posts |
I worked on this the other night. DSC off completely
CDV and BMS clutchstop on my '12 135i. 3,000 rpm and 3/4 throttle till mid 2nd gear. I have jb stg2 and dp though. I managed a 2.0 60 ft time on my RFT's the other night! |
Appreciate
0
|
Post Reply |
Bookmarks |
|
|