![]() |
|
|
||||||
| Home | Forums | Gallery | Register | FAQ | Members List | Social Groups | Calendar | Search | Today's Posts | Mark Forums Read |
| VDC, VTC, and 4EAT Post here if you have the advanced Subaru AWD with Automatic Transmission. |
| Advertise On ClubWRX | |
| Welcome to the ClubWRX Forum - Subaru Impreza WRX and STi Community and Forums. | ||
|
![]() |
|
|
Thread Tools | Rate Thread | Display Modes |
|
|
#1 |
|
Registered User
Join Date: Apr 2004
Location: 333
Posts: 217
|
The posted technique is the vacuum launch technique (the brake seems to suck to the floor).
Try using higher octane fuel. Also, boost seemed to build faster on cooler days. It worked in that I didn't have to go through the extra steps. Every car is different. Take some time and learn what helps and hurt your launch. But remember, I replaced my tranny. Doing this (brake launches) probably led to the tranny's demise. |
|
|
|
|
|
#2 | ||
|
Registered User
Join Date: Jul 2003
Location: Chino, Calif.
Posts: 1,226
|
Quote:
__________________
Quote:
|
||
|
|
|
|
|
#3 |
|
Registered User
Join Date: Nov 2002
Location: Montgomery, IL
Posts: 2,749
|
How to launch your Automatic
Since I get so many PMs asking about how to properly launch your 4EAT, I decided to make a thread about it. (mods please sticky and or merge with any other launching thread.)
I strongly advise that you use your head and practice this in a very remote location (or more preferably the track!) and if you want to keep your transmission in good working order, you might want to rethink doing this on a daily basis. Here's how it works: 1. (left foot on brake, right on gas) At a complete stop, put the car into N. 2. Start revving until you feel the brake pedal depress. (usually a quick rev to 5k RPM does the trick) 3. WAIT until the revs drop all the way back down, and put the car back into D. 4. With your left foot still firmly planted on the brake pedal, start revving the engine. You should see RPM's climb to around 2400 rpm and stall. After 2-3 seconds it'll start rising and you should hit around 3200 RPM. 5. Once at this RPM take your foot off the brake, and hold on for dear life! With the right amount of practice, this whole process can be done in a matter of a few seconds. And with the propper technique, you should be making a face like this:
|
|
|
|
|
|
#5 |
|
Registered User
Join Date: Jun 2004
Location: NYC...too close to newark:(
Posts: 423
|
or you can launch with line lock!!!!!!!!!!!!!!!!!
__________________
In real life a man is not judged by his potential...he's judged by his accomplishments..... |
|
|
|
|
|
#6 | ||
|
Registered User
|
Quote:
__________________
Fadi.... • 04' WRX, Stage 4 with fmic R.I.P • 05' WRX STI, 325whp 346wtq @17psi MODS Quote:
|
||
|
|
|
|
|
#7 |
|
Registered User
|
so on a stock tranny, and stock wrx auto, i can really get up to 3200 rpms without overheating, or damaging anything? thanks a lot.
__________________
2004 WR Blue WRX Auto with CBE. |
|
|
|
|
|
#9 | ||
|
Registered User
Join Date: Oct 2003
Location: PCAN FL
Posts: 790
|
Re: How to launch your Automatic
Quote:
Quote:
__________________
02 PSM WRX Cobb Stage 2.5 - SOLD 05 Stone White SRT4 (CC, 58% Maddog, Gutted DP) SOLD 2002 Toyota 4runner SR5 4WD - SOLD 04 BMW 325i 08 Spark Silver STI - Stage 2 Protuned |
||
|
|
|
|
|
#10 |
|
Registered User
|
if you're drag racing, would you put it in D or leave it in 3?
__________________
-Technical & Coordinator consultant for GE2 conventions I hate my WRX's stock horn.... |
|
|
|
|
|
#11 | |
|
Registered User
Join Date: Jul 2004
Location: Atlanta
Posts: 706
|
Quote:
__________________
13.2 @105 with the old auto. Now rockin a 4.44 standard tranny. |
|
|
|
|
|
|
#12 |
|
Registered User
|
3rd goes up to 120?? damn, i trhought it went up to 90? i thought it was somewhere around 40, 72, ~90, havent actually floored it in 3rd to redline, so im only assuming.
__________________
2004 WR Blue WRX Auto with CBE. |
|
|
|
|
|
#13 |
|
Registered User
Join Date: Jul 2004
Location: Atlanta
Posts: 706
|
I think so, I cruise @50 somewhere around 3000 revs so I figure it will do 100 at 6000 and then you can go up to 7000 . . .
__________________
13.2 @105 with the old auto. Now rockin a 4.44 standard tranny. |
|
|
|
|
|
#14 |
|
Registered User
|
yeah, you probably wont get past 90 stock on the 1/4 mile, but 3rd is nice and tall. . .
__________________
-Technical & Coordinator consultant for GE2 conventions I hate my WRX's stock horn.... |
|
|
|
|
|
#15 |
|
Registered User
Join Date: Nov 2002
Location: Montgomery, IL
Posts: 2,749
|
What I do at the track is:
Launch while in D, and right about at the 60' mark I shift it into 3. (I just kinda feel it out) I don't know what this does for my times, but it seems to work the best. And you'll end the 1/4 mile with plenty of room to spare because 3rd does go up to 120. |
|
|
|
![]() |
| Thread Tools | |
| Display Modes | Rate This Thread |
|
|