Spray through shifts
Spraying through on a fully built tranny is pretty much standard procedure, they can handle it. The only reason most of us don't spray through is to help prolong the life of the stock tranny. Some people disagree with this but, I tend to think that it works. 
Why not use a simple rpm window switch and remove some stress from your expensive tranny? Spraying through shifts won't make you any quicker, and it might make you poorer...
I just use an MSD window switch with an upper rpm module that is 100rpm lower than my shift point.
Jim
I just use an MSD window switch with an upper rpm module that is 100rpm lower than my shift point.
Jim
i dont do it. my car runs pretty solid. i have a built 4L60e and feel it cant be classified in the same category as a built th350 or th400.
has anyone seen a gain from spraying b/w the shifts versus stoping the spray like me at 200 rpms before the shift?
has anyone seen a gain from spraying b/w the shifts versus stoping the spray like me at 200 rpms before the shift?
this is a very common question, but i have always sprayed right through the shifts. Completely stock trans. the only thing i did do was programmed quicker and harder shifts. This has worked for the past 3 years. It is not my daily driver so it doesnt get much stress during the week which helps out.
Originally Posted by gator's 99TA
i dont do it. my car runs pretty solid. i have a built 4L60e and feel it cant be classified in the same category as a built th350 or th400.
has anyone seen a gain from spraying b/w the shifts versus stoping the spray like me at 200 rpms before the shift?
has anyone seen a gain from spraying b/w the shifts versus stoping the spray like me at 200 rpms before the shift?
Lets see how long it last running in the 10's
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Launching!
Joined: Oct 2002
Posts: 266
Likes: 0
From: Fort Collins, CO
I am stepping up from a 100 shot out of the hole to a progressive 175 over the winter. My trans is "built" but i know it is not built to the moon like some. I have been spraying through the shifts but am considering this may be a bad choice with the bigger shot. Now my main question is: Will setting a window switch to turn off before the shift then kick back in after be a bad idea with
Launching!
Joined: Oct 2002
Posts: 266
Likes: 0
From: Fort Collins, CO
I am stepping up from a 100 shot out of the hole to a progressive 175 over the winter. My trans is "built" but i know it is not built to the moon like some. I have been spraying through the shifts but am considering this may be a bad choice with the bigger shot. Now my main question is: Will setting a window switch to turn off before the shift then kick back in after be a bad idea with a 175 shot? I don't want to be losing traction when it comes back in or jolting anything.
It has also been stated that you don't gain anything spraying through the shifts but I see it as a delay, nitrous has to turn off then back on while the trans shifts pretty dang quick. Do you guys that use a window switch and shut it down even notice it?
It has also been stated that you don't gain anything spraying through the shifts but I see it as a delay, nitrous has to turn off then back on while the trans shifts pretty dang quick. Do you guys that use a window switch and shut it down even notice it?
