"Frisbee" removal question
Thread Starter
Burning Brakes
Joined: Aug 2006
Posts: 1,123
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From: Rockland County NY
"Frisbee" removal question
I'm thinking of removing the frisbee on my 91 L98. It looks like there are just four bolts holding it on. Is it as easy as just taking off the 4 bolts and tossing everything in the trash? Or do the bolts go back in? If the bolts go back in, do you need thick washers to make up for the thickness of the frisbee? Is it worth the aggravation? Thanks in advance for your collective help.. Mike
Pro
Joined: Sep 2007
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From: Commerce Twsp Michigan
I'm thinking of removing the frisbee on my 91 L98. It looks like there are just four bolts holding it on. Is it as easy as just taking off the 4 bolts and tossing everything in the trash? Or do the bolts go back in? If the bolts go back in, do you need thick washers to make up for the thickness of the frisbee? Is it worth the aggravation? Thanks in advance for your collective help.. Mike
Team Owner
Joined: May 2000
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From: Plantation Florida USAF(Retired) 1966-1990
U.S. Air Force
St. Jude Donor '05 thru '26
NCM Sinkhole Donor
I removed mine, and don't expect any great surge of power, it ain't gone to happen. I installed spacers and installed the nuts and don't be surprised how heavy the disk weights.
Le Mans Master
Joined: Jul 2002
Posts: 5,818
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From: Alive and well in Burlington NC
That's how I did mine. If you are going to install a camber brace (as I did) it will need to come off anyway. It only weighs ~3.5 lbs on the L98 so don't expect a great gain but it IS 3.5 lbs of mass the engine dosen't have to spin up.
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From: So. Cal.
2025 C7 of the Year Finalist- Unmodified
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Frisbee
Leave it on. Its designed to balance out the front rotating mass. No real gain from taking it off.
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Michael S. Palmer
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From: SE NY
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If the bolts go back in, do you need thick washers to make up for the thickness of the frisbee? Is it worth the aggravation?
I used thick lock washers between bolt heads and the front of the WP pulley just to be sure the bolt ends would still clear the WP.
This mod is worth ~10chp gain so don't expect a real SOTP bump in power but, if you can make consistent passes down the 1/4 mile, you will see about a 1mph gain in trap speed w/o the frisbee...
Burning Brakes
Joined: Aug 2004
Posts: 771
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From: Washington District of Columbia
Frisbee? Come Again!
Alright guys, in all my years, 65 to this point, I've never heard of any
engine/automotive part call a "frisbee"
. What is it and where is it
located? My first thought was that it was some sought of window
ornament or decal.
engine/automotive part call a "frisbee"
. What is it and where is itlocated? My first thought was that it was some sought of window
ornament or decal.
Pro
Joined: Jul 2005
Posts: 707
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From: Fuquay Varina North Carolina
Same here what the heck is an automotive Frisbee?
Team Owner
Joined: Oct 2000
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From: 63.8% of all statistics are made up on the spot.
St. Jude Donor '08-'10
it is a flat disc about 8 inches in diameter that bolts to the water pump on the L98. A lot of guys call it that but it's really a damper/counter balance. Some people believe that there is a gain in HP to be had by removing it, others disagree.
Le Mans Master
Joined: Jul 2002
Posts: 5,818
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From: Alive and well in Burlington NC
It is a damper for the AC. It is used to dampen the shock to the belt drive system when the AC cycles. On early L98s, it is large and weighs ~10lbs. 90/91 dropped to 3.5lbs. LT1 on never had one.
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From: WI
Extra weight is bad all around and it just makes things more difficult to work on. Removing that was one of the first things I did when I bought the car.
