Slipping Balancer? What RPM OEM?
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Supreme Member

Joined: Feb 2000
Posts: 1,170
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From: Seattle, Washington
Car: '87 IROC-Z/'82 RX7
Engine: SBC 355/1.1L Rotary
Transmission: T56/5 Speed
Axle/Gears: 4.33/3.93
Slipping Balancer? What RPM OEM?
Probably a dumb question, but when a balancer starts to slip, it will read retarded right?
For instance if it slipped say 10deg.... when I set the timing mark to 6deg BTDC, I would actually be at 4deg ATDC?
Crank spins clockwise (from front viewpoint) so the balancer should slip the other way?
What is an OEM balancer good for RPM wise?
I've spun her to 6300ish a few times.
Thanks
-Paul
For instance if it slipped say 10deg.... when I set the timing mark to 6deg BTDC, I would actually be at 4deg ATDC?
Crank spins clockwise (from front viewpoint) so the balancer should slip the other way?
What is an OEM balancer good for RPM wise?
I've spun her to 6300ish a few times.
Thanks
-Paul
Supreme Member
Joined: Jul 2001
Posts: 1,766
Likes: 2
From: New Palestine, IN (Just East of Indy)
Car: '85 Z28
Engine: 305
Transmission: WC T5, 3.23 posi
I'm not really sure which way it would slip since I've never had any experience with that, but I would think you're reasoning is correct.
The stock ones however don't like high rpms. Maddog racing has chrome fluid dampers for $129 shipped, I just got mine this week.
The stock ones however don't like high rpms. Maddog racing has chrome fluid dampers for $129 shipped, I just got mine this week.
Thread Starter
Supreme Member

Joined: Feb 2000
Posts: 1,170
Likes: 0
From: Seattle, Washington
Car: '87 IROC-Z/'82 RX7
Engine: SBC 355/1.1L Rotary
Transmission: T56/5 Speed
Axle/Gears: 4.33/3.93
I've heard some bad things about Fluidampr....
Might be time to get a new one. I've got the large balancer and timing cover with the tab straight up, rather than to the side.
Might be time to get a new one. I've got the large balancer and timing cover with the tab straight up, rather than to the side.
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Joined: Sep 2001
Posts: 850
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From: Damascus, OR, USA
Car: 1989 GTA
Engine: 383 Miniram AFR195
Transmission: Tremec TKO
Axle/Gears: BW 9 Bolt/3.70
Depending on where you eventually want to be with the car you may want to consider upgrading to the appropriate SFI spec balancer now rather than having to do it again later.
You ARE planning on 8 sec 1/4 right Paully ;-)
-Schultzy
You ARE planning on 8 sec 1/4 right Paully ;-)
-Schultzy
Last edited by Schultzy89GTA; Dec 11, 2003 at 08:39 PM.
Senior Member
Joined: Sep 2001
Posts: 564
Likes: 2
From: Cathlamet, Washington
Car: 87 Formula
Engine: 327
Transmission: 700r4
Axle/Gears: 3.23
Dude theres been a few aftermarket crank companies blaming fluidamper for crank failures. I think Scat is one. I know on one manufacturers website they actually say not to use fluiddampner or they'll void your warranty.
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