MS4 Shiftpoints
Banned
Joined: Sep 2007
Posts: 698
Likes: 0
From: Chandler, Az
Take it to the track and try setting it to shift @6700, 6800, and 6900 Whichever nets you the best ET(assuming your consistant) and MPH is where you should leave it
My buddy had the MS4 and PRC LS6 STG 1 heads in his 4400 stalled 2000 Vette and ran 11.2@119-121 (1.57-1.59 60") in +2000DA. He set the tranny to shift at 6400 because the car wouldnt make the actual shift till ~6800
From what he showed me 6800-6900 is about where you want it testing and tuning will give you the best possible ET
My buddy had the MS4 and PRC LS6 STG 1 heads in his 4400 stalled 2000 Vette and ran 11.2@119-121 (1.57-1.59 60") in +2000DA. He set the tranny to shift at 6400 because the car wouldnt make the actual shift till ~6800
From what he showed me 6800-6900 is about where you want it testing and tuning will give you the best possible ET
Thread Starter
Racer
Joined: Jun 2005
Posts: 446
Likes: 0
From: Memphis,TN
I dont have the software to change the shiftpoints myself so I have to get my friend to set them and put a tune in it and then go to the track. So it will be hard for me to change them very often. Was looking to just get them set once and be done with it. Thinking of setting the rev limiter at 7000.
The motor will be bone stock except for ms4 cam,921 springs,7.400 pushrods and 42lb injectors. Im thinkn of setting the shiftpoints at 6700. Would like to get the most out of it by keeping it in the power band though so if it pulls all the way to 6900 I'd rather shift there. So what do you guys think? Shift at 6700 or 6900?
The motor will be bone stock except for ms4 cam,921 springs,7.400 pushrods and 42lb injectors. Im thinkn of setting the shiftpoints at 6700. Would like to get the most out of it by keeping it in the power band though so if it pulls all the way to 6900 I'd rather shift there. So what do you guys think? Shift at 6700 or 6900?
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It keeps going 
I have seen people pushing 7200 though.
