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Old 07-08-2006, 01:37 AM   #1
Gleb
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Light flywheel

What do you guys think of a lighter flywheel for a '87 325i. What brand? Any side effects? My car is mostly track.
Also check out www.signaturemotoring.com and please tell me what you think.
Thank you.
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Old 07-08-2006, 12:06 PM   #2
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not going to be much difference with stock e30 Getrag tranny. I heard it's got light (singlemass) flywheel already.
In my case the stock dualmass flywheel was around 30lb, so it was amust to go for something lighter (11lb in my case).
There was a bit of a difference between my old (M20) tranny feel and the new light flywheel.
If your opening the tranny anyways, some people just machine the stock singlemass flywheel (i heard impossible for dualmass) so do this if you can find a person who can do it for cheap.

flywheel is good and noticable for first 2-3 gears. You can also do the pullies with similar effect.
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Old 07-08-2006, 01:05 PM   #3
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I had the stock flywheel (19lbs) machined down to 11 or 12lbs.

Made a huge difference.
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Old 07-08-2006, 01:55 PM   #4
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buy another flywheel and get it machined. m20 flywheels can be shaved down as jordan said. u will have a shitty idle but it will improve ur acceleration.
Go see Doug @ Competition Automotive. tell him Mike sent u from PartSource l
its about 60-80$ to get it done. last time i spoke to him.

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Richmond Hill, ON L4C 6P3
Tel. : 905-889-0486
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Old 07-08-2006, 01:58 PM   #5
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Quote:
Originally Posted by ZiMMie
u will have a shitty idle
No you won't.
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Old 07-08-2006, 02:09 PM   #6
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Quote:
Originally Posted by Jordan
No you won't.
From wat ive read, a lighter flywheel has a louder idle due to material removed from the flywheel which absorbs most of the gear chatter from the transmission. so will that makes is car idle lke shit since u can hear a bit of gear chatters?
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Old 07-08-2006, 07:40 PM   #7
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Do you have one in your car?

I had a shit ton of mods done to my car.

The idle was still a nice solid 750rpm +-10
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Old 07-08-2006, 09:02 PM   #8
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Quote:
Originally Posted by Jordan
Do you have one in your car?

I had a shit ton of mods done to my car.

The idle was still a nice solid 750rpm +-10
Good for u.

No i dont, but will soon have one in, ive driven cars with lighter flywheels which had a louder idle due to the lightend of the flywheel.

Some do expericece idle issues others dont. So good job for makin ur car idle that low.
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Old 07-08-2006, 11:56 PM   #9
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the idle issue with lightweight is the gear chatter/rattle, not erratic idle

it can be muffled halfway with heavier (gear) oil used in tranny

Jordan, you don't have an e30 anymore, what are you still doing on this forum?
BTW, what do you think of e36's numbness?
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Old 07-09-2006, 12:39 AM   #10
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Quote:
Originally Posted by static
Jordan, you don't have an e30 anymore, what are you still doing on this forum?BTW, what do you think of e36's numbness?
Just because I don't currently own a e30 doesn't mean I don't still have interest in them. I have great plans for the future... This e36 isn't numb, don't know what you are talking about.
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Old 07-09-2006, 01:15 AM   #11
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Thanks guys, but what do you think of buying one from a performance parts specialist? Also what do you think about this heat shield www.signaturemotoring.com
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Old 07-09-2006, 11:29 AM   #12
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Don't waste money on a aluminum flywheel, just have the stock single mass flywheel machined down.

Stop plugging your website, that heatshield is garbage.
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Old 07-09-2006, 12:16 PM   #13
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what type of flywheel comes on a 325e?

single or dual mass?
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Old 07-09-2006, 02:48 PM   #14
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big heavy dual mass, and you can't swap it out in favor of the single as it has sensor pickups on it.
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Old 07-09-2006, 04:32 PM   #15
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Jordan, what would you suggest doing with the flywheel in my m42? Mine has a dual mass, correct?

will a single mass fit right in?

I dont know much about this, but its something ive wanted to get done for a while.

Thanks
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