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-   -   were the older tci balacers SFI? (https://classracer.com/classforum/showthread.php?t=86524)

David Lee 01-10-2024 05:50 PM

were the older tci balacers SFI?
 
this is the style i am asking about, thanks

https://i.ebayimg.com/images/g/oxYAA...ZS/s-l1600.jpg

Dyno 01-10-2024 06:30 PM

Re: were the older tci balacers SFI?
 
Solid aluminum?

David Lee 01-10-2024 06:57 PM

Re: were the older tci balacers SFI?
 
Quote:

Originally Posted by Dyno (Post 691446)
Solid aluminum?

i believe so

Coleydog 01-10-2024 11:56 PM

Re: were the older tci balacers SFI?
 
A friend who ran a small block modified production Corvette ran just the inner part of balancer. R&M told him it went through the Rs so fast it didn’t need a ‘balancer’ this was in the late 60s and 70s. Never blew an engine either of course Allen could drive that car!

Henrys Toy 01-11-2024 09:53 AM

Re: were the older tci balacers SFI?
 
Quote:

Originally Posted by Coleydog (Post 691469)
A friend who ran a small block modified production Corvette ran just the inner part of balancer. R&M told him it went through the Rs so fast it didn’t need a ‘balancer’ this was in the late 60s and 70s. Never blew an engine either of course Allen could drive that car!

Good morning to all,
My experience with those were with two Moroso Alum. Balancers that were installed on 468 cu. in. Big Block Chevy engines. Both cranks failed in less the 50 runs. One scattered pretty good. Second got inspected after the first one blew up and was caught, crank cracked in the #8 rod journal leading into the rear main journal.
Second engine got a new crank and balanced with a Good GM Balancer (at the time ) and no further problems were were noted. Never used one myself, but Moroso stopped selling those balancers and I haven't seen any others in use. I would be very skeptical in using one.
Just my observations over the last 40 years of playing with High Performance engines.
In maybe a very short stroke engine ( 3 inches or less ) for very short durations of running, But in todays world I can't justify possibly sacrificing a good race engine for something like that.
Just my two cents from a little Island here on the East Coast.

Respectfully,
Henry Kunz 1534 H/SA

L.Fite 01-11-2024 05:49 PM

Re: were the older tci balacers SFI?
 
IMO...
ATI the only game in town...

Keith 944 01-11-2024 06:50 PM

Re: were the older tci balacers SFI?
 
Why not call TCI? And if it’s not stamped on there somewhere, I would bet it is not.

David Lee 01-11-2024 07:49 PM

Re: were the older tci balacers SFI?
 
Quote:

Originally Posted by Keith 944 (Post 691509)
Why not call TCI? And if it’s not stamped on there somewhere, I would bet it is not.

spent two hours on hold with the tech dept. ever since edelbrock to over many companies. Customer service is a joke

Steve Grady 01-12-2024 02:53 PM

Re: were the older tci balacers SFI?
 
The early one piece solid aluminum hubs were not SFI certified pieces. The Rattler series of harmonic dampers are SFI approved.I do not believe a 1 piece hub has a SFI specification as it is not a Balancer, As compared to to SFI Spec 18.1 which is specifically listed for Harmonic Balancer.

David Lee 01-12-2024 04:34 PM

Re: were the older tci balacers SFI?
 
Quote:

Originally Posted by Steve Grady (Post 691540)
The early one piece solid aluminum hubs were not SFI certified pieces. The Rattler series of harmonic dampers are SFI approved.I do not believe a 1 piece hub has a SFI specification as it is not a Balancer, As compared to to SFI Spec 18.1 which is specifically listed for Harmonic Balancer.

thanks


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