electronic shift kit yay or nay
Moderator
Joined: Aug 2010
Posts: 7,323
Likes: 529
From: Ann Arbor, MI
Anything an electronic shift kit can do, can be done better by tuning the PCM.
I would suggest installing the Sonnax .490 boost valve (# 4L60E-LB1) which is trivial after dropping the pan. That by itself will tighten all shifts and likely improve the life of the trans.
So, I would say Nay, but then I am comfortable with everything related to transmissions and PCM tuning.
I would suggest installing the Sonnax .490 boost valve (# 4L60E-LB1) which is trivial after dropping the pan. That by itself will tighten all shifts and likely improve the life of the trans.
So, I would say Nay, but then I am comfortable with everything related to transmissions and PCM tuning.
Nay.
As mentioned above you can have that kind of stuff done as part of a full tune which will also add a small amount of horsepower and throttle response (more power if you have some mods).
If the budget is tight put the money towards either a Trans Go HD2 kit ( I avoid B&M kits) or comparable or a good mail order tune. Even just the boost valve mentioned above will help. Just depends how mechanically inclined with auto transmissions you are.
As mentioned above you can have that kind of stuff done as part of a full tune which will also add a small amount of horsepower and throttle response (more power if you have some mods).
If the budget is tight put the money towards either a Trans Go HD2 kit ( I avoid B&M kits) or comparable or a good mail order tune. Even just the boost valve mentioned above will help. Just depends how mechanically inclined with auto transmissions you are.
Anything an electronic shift kit can do, can be done better by tuning the PCM.
I would suggest installing the Sonnax .490 boost valve (# 4L60E-LB1) which is trivial after dropping the pan. That by itself will tighten all shifts and likely improve the life of the trans.
So, I would say Nay, but then I am comfortable with everything related to transmissions and PCM tuning.
I would suggest installing the Sonnax .490 boost valve (# 4L60E-LB1) which is trivial after dropping the pan. That by itself will tighten all shifts and likely improve the life of the trans.
So, I would say Nay, but then I am comfortable with everything related to transmissions and PCM tuning.
TECH Junkie
Joined: May 2012
Posts: 3,050
Likes: 716
From: Poplarville, MS
Yes you can replace the boost vale without removing the trans. All you have to do is remove the trans pan and a snap ring. The boost vale will firm up the shifts a lot. You can all so add shims the 1-2 accumulator. You need to be careful you can get this trans shifting too hard and break the forward sparg.
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find someone in your area decent with a tuner and have them remove some torque management , shorten shift times a bit and increase shift pressures a bit and it should shift firmly and bark the tires on wot shifts
I wont say how much because that will be up to you and the tuners comfort level , I always take conservative swipes at it and drive it long enough to adapt before tweaking further using the multiply function adjusting 5% at a time in only the cells you would use when driving aggressively ( x0.95 on shift times or x1.05 on pressures)
I wont say how much because that will be up to you and the tuners comfort level , I always take conservative swipes at it and drive it long enough to adapt before tweaking further using the multiply function adjusting 5% at a time in only the cells you would use when driving aggressively ( x0.95 on shift times or x1.05 on pressures)
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Verdad Gallardo Moderator
Joined: Aug 2010
Posts: 7,323
Likes: 529
From: Ann Arbor, MI
Glad you got the Sonnax boost valve installed; it will reduce slippage during shifts and likely improve longevity.
While it does firm up shifts a bit, it is only a little.
As mentioned, a tuner can tighten the shifts for you.
Or, if you decide to install a shift kit, you already have the best boost valve available.
While it does firm up shifts a bit, it is only a little.
As mentioned, a tuner can tighten the shifts for you.
Or, if you decide to install a shift kit, you already have the best boost valve available.
well heres the question of the day after installing the boost valve and shiming the spring on the 1-2 modulator it didnt shift no different than it did when i started but after having a bad maf sensor (since ive owned the car) and someone told me to unplug it because it would be better to run it unplugged than run it plugged up with a bad sensor the question is why when the maf is plugged up the trans shifts the same as always and with it unplugged it will bark the tires at 3/4 throttle and im not talking every once in a while its every time and if i plug the maf back in it shifts the same as it always did it dont seem right to me that the maf would make the shift different but it does lol