1998 e36 1.9 Z3 - M44 supercharging thread - Page 8

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    #71
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    oh and a brand new standard radiator, no thermostat and brand new water pump
    Z3
     
     

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    #72
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    Quote Originally Posted by markrnorton View Post
    Used a simota carbon airbox before the ITG, the ITG gave more horsepower, i seem to recall around 12hp. the original clutch gives up with the boost in torque. BBTB makes a small difference.
    Thanks for the information mate! I've got an M42 with a single mass flywheel instead of the duel you had. Would the M3 flywheel you used make much of a difference? What other options are there?

    Quote Originally Posted by markrnorton View Post
    oh and a brand new standard radiator, no thermostat and brand new water pump
    Why no thermostat?
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    #73
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    M3 flywheel holds a larger clutch and so deals with the increased torque better. the m3 flywheel i had was a lightened chromoly steel version, so it 'span up' quicker, less mass to turn.

    i removed the thermostat to get a constant flow of water through the system as the engine ran hot with all the additional mods
    Z3
     
     

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    Prince (20-09-2011)

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    #74
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    Quote Originally Posted by markrnorton View Post
    M3 flywheel holds a larger clutch and so deals with the increased torque better. the m3 flywheel i had was a lightened chromoly steel version, so it 'span up' quicker, less mass to turn.

    i removed the thermostat to get a constant flow of water through the system as the engine ran hot with all the additional mods
    Any ideas if the M3 clutch/flywheel bolt straight into the M42 assembly? Are all M3 flywheels chromoly steel?

    Thanks for the help mate. I really appreciate it.
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    #75
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    no, the M3 flywheel i had was a specific chromoly lightened race one. 8 bolt crank fitment i seem to recall. not sure if M42 ring-gear is the same.
    Z3
     
     

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    Prince (20-09-2011)

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    #76
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    Quote Originally Posted by markrnorton View Post
    no, the M3 flywheel i had was a specific chromoly lightened race one. 8 bolt crank fitment i seem to recall. not sure if M42 ring-gear is the same.
    I would assume it was different if you had a duel-mass and I've got a single-mass (the same one you originally sourced).

    Do you know of any aftermarket options? Or are the options from BMW a better idea?
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    #77
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    HI did you use a decompression plate before installing supercharger on the head .I have just bought a Eaton supercharger for my coupe ,but i still need the manifold to bolt on ,also do you have update photos of engine now would like to see how throttle body goes on and piping .
    Your description is great and easy to follow
    Thanks .
     
     

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    #78
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    No decompression plate, just standard compression.
    I'll dig out some pictures
    Z3
     
     

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    Prince (27-09-2011)

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    #79
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    Thanks for a very informative and well documented article, Mark. I have a DA kit fitted to a 95 M42-engined 318is. It has now covered about 15,000 road KM and about 13 track days with 100% reliability despite a 240,000 km engine. I am about to purchase a 3.4" pulley and an Aquamist water injection system as power drops when inlet and ambient air temps get high (often air temps of 30-40 degrees in Summer in Australia which would really lift inlet temps on track days). On my last dyno check in the middle of winter, the operator reported max power of 114RWKW at about 6500rpm in third but losses of 3kw each successive run. So far no trouble with the standard clutch or factory LSD despite all the track work but I will upgrade the clutch when boost is increased. Fortunately our BMW club championship rounds use a rolling start that is is much kinder on the driveline than standing starts. The 2011 series has just been completed and I finshed second in the up to 3.0L group.
    I was curious if the switch to a light flywheel brought on the dreaded gear rattle that seems to afflict all the 6-cylinder cars when they move from the DM unit. As my car is primarily for road use in a hot climate I would be reluctant to jettison the air cond.
    As your V8 conversion will increase speed sunstantially I should mention that I have had great success on the track for the last 6 years in the present car plus a 325i and 328i using the E46 front rotors/caliper plus ventilated E46 328i rear calipers/rotors. The 330i front rotors/calipers are a straight bolt on and are 10mm larger than E36 M3 units although they do not have the curved vanes of the M3. With slotted rotors I found I could match M3 brake performance plus they represent a huge saving in replacement cost.
    Last edited by bm49; 08-10-2011 at 04:59. Reason: key word omitted
     
     

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  15.  
    #80
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    the new pulley will certainly give you more boost, if you can control the charge temps you should se a decent increase in power
    Z3
     
     

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