Safety Reminder: What flywheel/bellhousing?

[Vegas69]

I ran across this thread over on Chevelles.com. It's a reminder of how important a quality SFI billet flywheel AND SFI bellhousing are for any type of performance application.
http://www.chevelles.com/forums/showthread.php?t=360588
http://www.flickr.com/photos/65538622@N05/6005887929/

[Sieg]

Amen! Doesn't look like there was a block saver plate........

[Rick D]

Originally Posted by ratman67

what is a block saver plate?

Steel plate that goes behind the fly wheel to "save the block"

Looks like this:

http://www.summitracing.com/parts/MCL-8630/

[wmhjr]

Absolutely. An sfi scattershield and block plate were must haves for my build. I've seen too many examples of disasters from not having them.

[wellis77]

The comment about billet flywheel's, are these aluminum or steel? I can get a chromoly or billet aluminum flywheel for my application. Which one would be the better way to go? I'm checking if either are SFI rated. Thanks.

[70rs]

Originally Posted by wellis77

The comment about billet flywheel's, are these aluminum or steel? I can get a chromoly or billet aluminum flywheel for my application. Which one would be the better way to go? I'm checking if either are SFI rated. Thanks.

The SFI flywheel is just one part of the "system" you should have in place. You also need top quality (arp) flywheel bolts, clutch mount bolts, SFI bellhousing, or scatter shield, and a high quality clutch disc and pressure plate.
Any of those parts can grenade on you and destroy your feet/legs.

[wmhjr]

Originally Posted by wellis77

The comment about billet flywheel's, are these aluminum or steel? I can get a chromoly or billet aluminum flywheel for my application. Which one would be the better way to go? I'm checking if either are SFI rated. Thanks.

I think your questions is really about how heavy a flywheel is most appropriate, and you'll probably find differences of opinion in that regard. Personally, I'm not a fan of aluminum/lightweight flywheels on street cars. But I know others who find them far more favorable than I do.

[wellis77]

I'll probably go the chromoly. It's sfi certified and only 1.5 lbs heavier than the aluminum. However, the billet aluminum is sfi as well. I'll be picking up a schattershield and ARP bolts as well. Not sure what I'm doing for the clutch yet but I'll be keeping all of this in mind as I make the selection. I just changed engines and it came with an aluminum bell but this thread reminded me that I need to get the scattershield despite the $600 price tag.

[wmhjr]

Originally Posted by wellis77

I'll probably go the chromoly. It's sfi certified and only 1.5 lbs heavier than the aluminum. However, the billet aluminum is sfi as well. I'll be picking up a schattershield and ARP bolts as well. Not sure what I'm doing for the clutch yet but I'll be keeping all of this in mind as I make the selection. I just changed engines and it came with an aluminum bell but this thread reminded me that I need to get the scattershield despite the $600 price tag.

I think you might have misunderstood what I was saying. A lighter flywheel is not necessarily better. It may be (and often is) worse for anything other than pure track driving. In fact, even on a track car too light a flywheel can be a problem.

[jeff71]

Would you guys say the upgrades are necessary if your not drag racing or doing track days?