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From digest.v7.n1083 Fri Feb 6 05:23:21 1998
From: Jason Leung <>
Date: Fri, 06 Feb 1998 00:26:33 -0600
Subject: Re: Supercharged M3 Advice

Steve Grigory asks:

>I'm looking for information on supercharged '95 M3's. Specifically, I just finished
>test driving a '95 M3 with the Dinan supercharger, exhause, intake, suspension,
>and floating rotors that is for sale. The car has 30k miles (about 7k of them
>with the supercharger) and is in excellent condition.

>I've heard "rumors" of people having problems with supercharged M3's but I
>haven't read or heard of anything specific so I'm curious what people know.

Steve, Powerdyne makes the compressor for these kits. Early on, these kits shredded internal belts and were subject to bearing meltdown when they were beat at the track on a hot day. What this means is that if Duane had an early supercharged car, he would not be a happy camper.

However, sometime during late 1996, Powerdyne addressed these problems and redesigned the internals of the supercharger. Among one of the changes was a switch from Kevlar to Fibreglass internal belts.

I believe this has solved the problem. (Though if your name is Duane and you didn't hate forced induction so much, you'd probably pop for ERT's _race_only_ Vortech supercharger setup [as opposed to ERT's Powerdyne setup] .... the Vortech is completely gear driven, and incredibly loud.)

A side benefit is that the new redesigned Powerdynes are also very very quiet. Almost no noise.

If you are considering buying the Dinan car, may I suggest you look for:

  1. The redesigned supercharger.
  2. Dinan's Vanos blocker. (Blocks Vanos out to reduce valve

    overlap...which can be detrimental to forced-induction power)

  3. Cooling holes on the compressor which I believe Dinan implemented

    on later setups.

One of the most knowledgeable people about Dinan's supercharged e36 setups (aside from Dinan themselves) is Chuck Quarton, who I believe is also VP of the GCC. (I may be wrong on this.) He was on the digest 2 years ago, but I don't know if he's still here. I do not have his email address, but maybe one of our GCC members can point him out?

Other people on the digest who have or had ERT supercharged e36s are:, Jeff Tarr, (Vlasis), Matt Choi, Mark Nernberg (of Pizza fame), and myself. I am positive I am leaving some people out....

Anyways, I hope this helps.
Also, I may be a raging baboon, but I'm fairly confident I'm not raging on this one. ;-)

Jason Leung
92 325iK
Windy City Chapter

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