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Re: Best Mods that I have done (archive)

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Posted by johnW on April 24, 2000 at 12:02:01:

In Reply to: Best Mods that I have done posted by PeterE on April 24, 2000 at 11:27:51:

I've always liked the upping the rear ratio, but have in the past got more whine out of after market rearends....any problem with excessive whine??? Also with the 3.23 ratio in my M3, you can barely clear 60 m/h before shifting. Can you make 60 with the 3.46 ratio???? And too what about at crusing 70 m/h, what is the engine rpm with the 3.46???
Earlier in a '95 mustang, I put in a 3.75 and the car was like a truck off the or two seconds was all you had in 1st and you had to shift. I know, however, the 3.46 is much tamer than a 3.75 and should provide more time in 1st.
Where did you get your differential????

: Man, after spending way too damn much money on my car, putting everything from bigger wheels to a blower on it, I finally found what I think is the best bang for the buck. I put in a 3:46 rearend and took out the stock 3:23 on my '97 ///M3-4 this past weekend. What a difference in off-the-line and mid-range performance this made. It's like a completely different car. Unlike my blower, which doesn't noticeably kick in until 5K rpm, the low-end pull from the ratio change is immediate, and cost me about 1/4 the cost of my blower.
: The other modification that I just did and highly recommend, (but probably will get me flamed or this thread pulled) is a short shift conversion, using the factory shifter from a ///M roadster. The shifts are much shorter now and the side-to-side slop has also been reduced, and all for the price of only $50.00 in parts!!!! You can't beat that, and it only took about 45' to install.

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