F40 6 speed conversion
#8
#11
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Join Date: 01-22-11
Location: minnesota
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cant wait for miller to get his i wanna know more about the performance of this tranny i always thought a extra gear would be **** on my commute everyday
#12
In my opinion, this is an awesome upgrade especially for high HP motors, I just got mine done last week, I got my driveablitly back, the shifting is so much smoother. From what I remember, Matt at ZZP launched around 700hp and broke the engine mounts, so as far as this transmission being able to hold up, there should be no worries there. To me, this gave me my car back, so much more fun to drive and will be taking out to the road coarse this summer to put it to the test.
#24
Senior Member
From what heard from Tim, this is a very good option.
The couple things I don't like about the 4.45 for a DD standpoint are: it is very noisy and secondly my water temp was alot warmer when I am cruising at 80+mph vs at 60-70mph. The jump is as high as 10 degrees. My rev was nearly 3400 rpm and do that on a long trip. Not a big deal but still.
Someday I will make the switch but not until I am first added more mods.
The couple things I don't like about the 4.45 for a DD standpoint are: it is very noisy and secondly my water temp was alot warmer when I am cruising at 80+mph vs at 60-70mph. The jump is as high as 10 degrees. My rev was nearly 3400 rpm and do that on a long trip. Not a big deal but still.
Someday I will make the switch but not until I am first added more mods.