You cant shift faster than the trans can shift itself. 
Want to manually shift my 4l60e
Want to manually shift my 4l60e Ok, i just got my tranny rebuilt to hold heads, cam,and nitrous. but i have noticed that when i race i get more power if i manully shift, and the shop that i got rebulit said that i should keep it in drive,and that manually shifting is very bad for it. SO what i am wanting to know is there a way to shift my car without burning up the tranny? or is keeping it in drive the best way?
FormerVendor
Joined: Oct 2006
Posts: 3,123
Likes: 3
From: D-F/W
We have built our share of Manual Only 4L60E's. In fact, those have been in the highest h/p applications.
It is not at all detrimental to the unit if it is converted properly. Typically though it takes a quick hand to get it into 2nd gear if it has any gear in it with a power adder.
g
It is not at all detrimental to the unit if it is converted properly. Typically though it takes a quick hand to get it into 2nd gear if it has any gear in it with a power adder.
g
Originally Posted by flewbyyou04r1
its not good to manually shift a trans w/o a manual valvebody in it... if you get a manualy valve body it will be ok but finding one for a 4l60 is not gonna be cheap
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No going full manual will not still allow the PCM to do the shift. The auto functions are gone it will shift whenever you like but will also start in any gear position you ahve it in. For instance of you have it in the overdrive position it will star in 4th gear. You can use shift kits such as the transgo HD2 whic will allow you to hold the gear down as long as you like or downshift at any speed. However on up shifts by moving the selector up you are only allowing the PCM to comand the next gear when its ready to it still will not go till the PCM commands it.
Now in the case of manually shifting the auto I dont realy see it as detrimental , In fact there are some additional clutch packs that come on in MANUAL LOW and In D3 that can help support the low roller and input sprag assemblys.
Now in the case of manually shifting the auto I dont realy see it as detrimental , In fact there are some additional clutch packs that come on in MANUAL LOW and In D3 that can help support the low roller and input sprag assemblys.
Originally Posted by Rowdy94
I would like answers to this as well. This would be a great thing to have at a road course or autocross. You're still letting the PCM shift the car, you just get to tell it when.
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Originally Posted by performabuilt
No going full manual will not still allow the PCM to do the shift. The auto functions are gone it will shift whenever you like but will also start in any gear position you ahve it in. For instance of you have it in the overdrive position it will star in 4th gear. You can use shift kits such as the transgo HD2 whic will allow you to hold the gear down as long as you like or downshift at any speed. However on up shifts by moving the selector up you are only allowing the PCM to comand the next gear when its ready to it still will not go till the PCM commands it.
Now in the case of manually shifting the auto I dont realy see it as detrimental , In fact there are some additional clutch packs that come on in MANUAL LOW and In D3 that can help support the low roller and input sprag assemblys.
Now in the case of manually shifting the auto I dont realy see it as detrimental , In fact there are some additional clutch packs that come on in MANUAL LOW and In D3 that can help support the low roller and input sprag assemblys.
Now my questions are, with the full manual valve bodied 4L60E, are the line pressures, shift times, etc. no longer computer controlled? If they are, then the shift is still PCM controlled. If they are not, then you are effectively making the trans into a 700R4.
With a full manaul set up such as the transgo comonly used there are no electronic controls you dont even have to hook up the plug but unlike the 700r4 the presure is controlled by a vaccume modulator instead of the PCS , The 700r4 works similar but ends up with fixed presure, When you convert the 4L60E to full manual you become the PCM
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Gotcha. Thanks for clarifying!
On another note...You guys have got to get rid of that flyby every time a new page loads. I had to turn the volume off on my comp! lol Maybe just once on the main page would work hahah.
On another note...You guys have got to get rid of that flyby every time a new page loads. I had to turn the volume off on my comp! lol Maybe just once on the main page would work hahah.
Hey lol thats the coolest part of the site and I made the site , I like my roaring flyby lol just turn the volume down lol
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