Southbend, no chatter. Fluidampr?

Firstboost said:

Evening y'all.

Been awhile since I posted any sort of progress on my R, but figured I'd drop a line for some opinions; you know I love your guys/gals opinions right?

Any way. I had the phenomenal Emmanuele design team work on my little Peter Cotton tail today. I will be praising them elsewhere on the forum, but just know, you're in good hands.. like Allstate ya know?

I had them install my Southbend stg 3 daily, Fluidampr, iABED rear main seal and also perform an oil change( no seriously, I know how to drain oil from an engine), but was extremely happy/surprised at the results once the little rabbit rolled up to the front of the shop.

NO CHATTER. NONE. Unreal right? Every video I've seen of these clutches on EA888 chatter. Even guys with fluidamprs, who thought it would work, but still had chatter couldn't explain why they still had it.

https://youtu.be/UlT-uCXWCaE

At any rate, hope you guys enjoy my little girl voice and my happiness lol. Beers!

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MiamiBourne said:

I met someone last weekend on a meetup for a Waterfest Cruise. They had a 16 R with a stage 2 Southbend clutch. I didn't hear much of a chatter. Maybe slightly if any.

I'm thinking maybe some people are just more sensitive to these sounds than others.

I'm looking into a clutch for when I get tuned and I'm still on the fence on going TTRS OEM DMF or Southbend Stage 3. Chatter would be the main reason for considering an upgraded DMF so if I'm okay with the SMF chatter then I would most certainly go Southbend.

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NCM said:

The sound you're talking about isn't clutch chatter, but gear rattle from the transmission, usually due to the reduced torsional damping after fitting a lightweight single mass flywheel and clutch system. You'll hear it at idle in neutral, especially with the A/C running.

Clutch chatter is when the clutch skips rapidly as you engage it. It's typically due to the clutch being contaminated (e.g. from a rear main seal oil leak), distorted/worn out, or from certain racing friction plate designs that just don't like being slipped as they're engaged.

That said, glad you've escaped the issue. My M3 track car with a lightweight single mass flywheel rattles at idle like a bag of bolts, even though it's a 6-cylinder engine and inherently smoother than a four. I knew it would do this, but it's still annoying. One workaround is to bump the idle speed up a couple or three hundred rpm to smooth out the engine's torque pulsations; another is to use a thicker grade of transmission oil to provide some extra damping there.

Neil

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Firstboost said:

Evening y'all.

Been awhile since I posted any sort of progress on my R, but figured I'd drop a line for some opinions; you know I love your guys/gals opinions right?

Any way. I had the phenomenal Emmanuele design team work on my little Peter Cotton tail today. I will be praising them elsewhere on the forum, but just know, you're in good hands.. like Allstate ya know?

I had them install my Southbend stg 3 daily, Fluidampr, iABED rear main seal and also perform an oil change( no seriously, I know how to drain oil from an engine), but was extremely happy/surprised at the results once the little rabbit rolled up to the front of the shop.

NO CHATTER. NONE. Unreal right? Every video I've seen of these clutches on EA888 chatter. Even guys with fluidamprs, who thought it would work, but still had chatter couldn't explain why they still had it.

https://youtu.be/UlT-uCXWCaE

At any rate, hope you guys enjoy my little girl voice and my happiness lol. Beers!

Click to expand...

MiamiBourne said:

I met someone last weekend on a meetup for a Waterfest Cruise. They had a 16 R with a stage 2 Southbend clutch. I didn't hear much of a chatter. Maybe slightly if any.

I'm thinking maybe some people are just more sensitive to these sounds than others.

Click to expand...

Firstboost said:

I haven't used the AC yet, but if it becomes more prevalent issue with it on, I'll report back.

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NCM said:

The sound you're talking about isn't clutch chatter, but gear rattle from the transmission, usually due to the reduced torsional damping after fitting a lightweight single mass flywheel and clutch system. You'll hear it at idle in neutral, especially with the A/C running.

Clutch chatter is when the clutch skips rapidly as you engage it. It's typically due to the clutch being contaminated (e.g. from a rear main seal oil leak), distorted/worn out, or from certain racing friction plate designs that just don't like being slipped as they're engaged.

That said, glad you've escaped the issue. My M3 track car with a lightweight single mass flywheel rattles at idle like a bag of bolts, even though it's a 6-cylinder engine and inherently smoother than a four. I knew it would do this, but it's still annoying. One workaround is to bump the idle speed up a couple or three hundred rpm to smooth out the engine's torque pulsations; another is to use a thicker grade of transmission oil to provide some extra damping there.

Neil

Click to expand...

sixspeedz said:

Yup! My GF says it sounds like a diesel, but I got used to it pretty quickly and it doesn't annoy me at all... because race car!

It got much more noticeable after the engine mount upgrade, but then after those broke in that quieted back down.




Turn the AC on and idle, that's really the only time it happens to me. Not a big deal either way IMO.

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Terrafirma10 said:

I have just finished my break in period on my Southbend daily stage 3 clutch. And I have the transmission chatter that Neil is referring to at idle. But I love the clutch and the only way to put power down with a stage 2 tune. Of course after the install I have the top shock mount creaking issue. I sprayed it with some silicon spray today so hopefully it will fix it.

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Derushi said:

Do you also have the Fluidampr?

Also interested in the Southbend when I eventually do Is38/clutch upgrade.

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