How much can the stock 4L60 take
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How much can the stock 4L60 take
What is the max HP people are seeing with the stock tranny? I have 405rwhp, 395 rwtq and want to add a 100 TNT shot to it. At the track I will wait to engage after the 60' going about 35 mph. Can my stock tranny take it?
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all depends, mine has 94,000 miles on it and i put a cam in at 91,000 that brought it up 360rwhp and 355rwtq and right now it is have the tranny built because as soon as i put the cam in it started to slip and hit the rev limiter in first, then 4th started to slip also.
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I have 100s of trips down the track, cutting anywhere from 1.6s to 1,8s 60' with no problem with my tranny. I never try to manually shift it. When you do that, it doesn't allow enough line pressure to build to make the upshift when you try to go to a higher gear. That is why there is a delay when you manually up shift. This is NOT good on the tranny. Also I have a good tune with my 4000 stall converter and have a little more line pressure to help keep it from slipping. All of this on with 405 rwhp and 395 rwtq.
My tranny went boom when I tried to hit it off the line with a TNT 100 shot. I am guessing it had close to 600 ft-lb of torque when it happen. I believe the main thing that caused it was severe wheel hop. It is now rebuilt with a few upgraded parts, but still not a completely beefed up tranny.
We have added QA1 shocks and relocation bracket for the LCA to help eliminate wheel hop.
I would still like to see what it would do on the track with a 100 shot, but I will NOT try to hit it off the line again. Since I NEVER had a problem before I tried the nitrous on the line, I am thinking, if I wait until after the 60' mark before I "hit" the button. and not spray during the shift using the MSN window switch, what are my chances for this to hold up?
My tranny went boom when I tried to hit it off the line with a TNT 100 shot. I am guessing it had close to 600 ft-lb of torque when it happen. I believe the main thing that caused it was severe wheel hop. It is now rebuilt with a few upgraded parts, but still not a completely beefed up tranny.
We have added QA1 shocks and relocation bracket for the LCA to help eliminate wheel hop.
I would still like to see what it would do on the track with a 100 shot, but I will NOT try to hit it off the line again. Since I NEVER had a problem before I tried the nitrous on the line, I am thinking, if I wait until after the 60' mark before I "hit" the button. and not spray during the shift using the MSN window switch, what are my chances for this to hold up?
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Originally Posted by Shane_G
Who builds a 4l60 to handle 800 - 900 rwhp?