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Thread: Z3 ITR questions

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  1. #1
    Join Date
    Aug 2005
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    A 2.5liter, if I remember that's 168hp and 185ft-lbs, should be in the middle of ITS. You'll have to request it be classed as only the 2.8 liter is classed at this point.

    Do you have a hard top? That'll add $1k - $1.5k, and you'll need it otherwise top speed and fuel mileage will suffer. Got a welder, can you align and corner balance it? Parts wise maybe $3k to $4k. The coil over kit with springs and camber plates is $2300 from TC. With the 2.5 it should do pretty well on fuel. I've got a friend that's done well in E3 with his JP Z3. He does have to drive smooth, but he's done a 3hr enduring on one stop even with the 14gallon tank.
    STU BMW Z3 2.5liter

  2. #2
    Join Date
    Apr 2007
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    New Bern, NC
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    340

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    i have a crew chief attached to a grand am team. he does the setup on the mustang i race and would be doing this car too.

    doesnt sound like its too bad. its? hadnt thought about that.

    e3? what is that?


    Rob Bodle
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  3. #3
    Join Date
    Aug 2005
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    Quote Originally Posted by Cobrar05 View Post
    i have a crew chief attached to a grand am team. he does the setup on the mustang i race and would be doing this car too.

    doesnt sound like its too bad. its? hadnt thought about that.

    e3? what is that?

    The chassis is an e36 but varient 7. varients 5 (ti), 7 (Z3/M roady), and 8 (Z3/M coupe) all use the semi-trailing arm rear suspension, so when you go to order the coilover kit make sure to specify Z3 not just e-36 (which is the sedan/coupe, 325, 328, 323, and M3) fronts are the same rear is different. Here's the spec's on the M52TU B25 (M52 family, TU-technical update for the double vanos, and B25 for the 2.5 liter)

    http://en.wikipedia.org/wiki/BMW_M52

    165hp at 5500rpm and 181ft-lbs at 3500rpm. I wanted to have this classed and had discussed this with Josh, but since I wasn't going to run it I let it go back burner.
    STU BMW Z3 2.5liter

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