Launching with a 4L60E
Thread Starter
Le Mans Master
Joined: Jan 2001
Posts: 5,786
Likes: 6
From: Lafayette Colorado
Launching with a 4L60E
How are you guys launching with a 4L60E. I have a HD rebuilt one with a 3800 TC. By power braking( mashing the brakes and gas ), I can only get the rpms up to about 2600ish before the car starts to creep.
Keith
Keith
Race Director
Joined: Oct 1999
Posts: 13,298
Likes: 14
From: Somers NY
Re: Launching with a 4L60E (kromberg)
That sounds about right, when I had my 3000 converter in, I'd only bring the RPM up to 1800 & my 60' were 1.65 - 1.69
Now with the stock converter, I cant go over 1200 without the car creeping ..so I now leave at 1000 rpm..
I have found leaving at a higher RPM is NOT always better..I got my best 60' times ay 1800 with the 3000 converter, & another benefit is you don't get as much heat in the trans leaving at a lower RPM..
2 weeks ago I raced 13 rounds of racing in 2 days, & my 60' times were all within .010
Remember its a Bracket race, & you want consistency!! & I try to be as easy on parts as I can.. Try leaving at 1500 & let the converter "flash" & see if it helps your 60' times.. In my opinion if you are only getting .01 or .02 better 60' times by going that high its not worth it..
Now with the stock converter, I cant go over 1200 without the car creeping ..so I now leave at 1000 rpm..
I have found leaving at a higher RPM is NOT always better..I got my best 60' times ay 1800 with the 3000 converter, & another benefit is you don't get as much heat in the trans leaving at a lower RPM..
2 weeks ago I raced 13 rounds of racing in 2 days, & my 60' times were all within .010
Remember its a Bracket race, & you want consistency!! & I try to be as easy on parts as I can.. Try leaving at 1500 & let the converter "flash" & see if it helps your 60' times.. In my opinion if you are only getting .01 or .02 better 60' times by going that high its not worth it..
Thread Starter
Le Mans Master
Joined: Jan 2001
Posts: 5,786
Likes: 6
From: Lafayette Colorado
Re: Launching with a 4L60E (Major Spray)
You should try just flashing the converter off the line you may find it to work better :smash:
Keith
