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Re: Modification questions (archive)

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Posted by marc on February 28, 2001 at 19:56:43:

In Reply to: Re: Modification questions posted by Austin on February 28, 2001 at 15:48:50:

Thanks for the input I will take it under advisement. I will have pics to post in the near future. I just picked up the car last weekend (paid for it a month ago!) I have begun the process of getting it to where I would like to see it. This has included among other things

I have pulled the entire dash out of the car to detail all the vents and under the cables and such.

I am replacing the interior with black seats and door panels (it had the dark maroon)

new belts, console, leather brake boot and new shifter, light bulbs, driveshaft, diff bushing etc.

the fun stuff includes and set of HRE 540 wheels 17 x8 front and 17 x 9 1/2 rear (centers powdercoated white to match the car) A 2.5 rebuild and perhaps a supercharger depends on what will work with the motor internals.

Thanks again for the input
88 M3

Exhaust - I have a Stromung. I think they have the best build quality around. Sounds and looks great. Unproven performance - have not seen dyno comparison graphs. I know from personal experience there is a noticeable loss of midrange torque. Can't say for sure if this is offset by gains on the high end but everything feels good at redline.

Strut braces - I have a Sparco steel front bar. It works and it's cheap. I noticed the improvment the first freeway onramp I took. Definitely get one. Rear shock tower bars do nothing unless they're triangulated. Don't waste your money.

Camber - Get the factory camber correction front strut mounts. You will be amazed at how much better your car sticks with only .5 degrees more neg camber. For even more you can add adjustable mounts to this. I'm using the factory correction mounts and am very happy with the handling. Don't forget offset lower arm bushings, too.

Brakes - I'm running stock size with drilled rotors (everyone says they'll crack between the holes, but so far so good) and stainless lines. Most say the stock brakes are fine with quality pads, rotors and stainless lines. I tend to agree. But you just can't beat the looks of some big rotors in there, though right? If your budget allows big brakes, why not?

Got any pics of your car to post?

I have more than 1 question so here goes

1) exhaust- How many of you have the stromung exhaust? What are your opinions? I have past experience with Borla and was pleased overall but would like to put the best tuned piece on the M3. I have also seen mention of the SSprint and have researched it a bit but am curious to know more. ( I would be interested in Dyno numbers as well as actual street usage)

2) Shock mount/Strut braces relplacement & additions- Which are the best aftermarket and what are the experiences with these? I intend put harder shocks/struts in the car and want to avoid changing the entire assembly every time (I have a complete Dinan rear subframe in the car, from when Dinan still offered it as an assembly)

3) Caster/Camber correction- recomendations please!!

4) larger brake set-up -what do you think of the Brembo kit and please give me opionions about slotted vs cross drilled. Also if anyone has experience with the rotor wear with the aftermarket and give me comparisons to the factory (which I have heard are notorious for warping and not being able to be turned!?!)

I know its alot but I have consentrated on the motor (2.5 stage 1 Kormann) and am looking at the ERT supercharger kit. so I need input on the "other stuff"

88 M3

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