Another vertex ring issue

**Dave S** · 05-09-2019, 03:11 AM

chaz..... can you cut a crank to make it lighter? Just my 3.4 project......planted seeds but no results....

**Chaz** · 05-09-2019, 09:03 AM

No sir, they case harden the whole thing.

I'd be nice to be able to turn the rod journals on a scuffed one and send it again, but

I have found some bit's that will break thru the "skin" on the counter, so they can be balanced though ...

And bought a bob-weight set and made up a small diameter pin / light parts kit for it

**Dave S** · 05-09-2019, 10:02 PM

That's what I was thinking..... too hard.......so 50 lbs of rotating......no need for flywheel.....other than ring gear.

**Chaz** · 05-10-2019, 08:20 AM

The majority of the weight is close to the centerline and fairly streamlined. The only two places there is any "excess material" is in the the counters at each end. If you got rid of them, you would have to put it back with slugs closer to the center.
Six of one ...

Normal balance (3.0L) takes bout 20g off the bottom weight. You can either drill it or do a little semi knife edge with a flapper wheel.

**Dave S** · 05-10-2019, 10:06 AM

I was thinking taking off lbs.......on each round thing that holds the rings .....that seps each cly....On the side out of the crank case area. Taking off more metal close to the crank pin to lessen the need for the big counter weights at each end of the crank.

**Markus** · 05-10-2019, 01:57 PM

Originally Posted by cdubya

Drift or derailment?

Well, bear in mind that this thread started about how one brand of pistons and rings were different than a different brand of pistons and rings that are different. Which is not surprising since they are different. I.e. they are not the same.

So, I think we actually made it better.

**powerabout** · 05-10-2019, 11:20 PM

So whats your favorite ring package
2 rectangular 040 thick?

**Markus** · 05-14-2019, 08:21 AM

Originally Posted by powerabout

So whats your favorite ring package
2 rectangular 040 thick?

Are you trying to trick me into bringing this thread back to discussing piston rings?

**eli** · 05-14-2019, 07:33 PM

think everybody's rings ok ,start new thread who likes boobies lol

**Dave S** · 05-14-2019, 07:46 PM

keystone rings best.... than L shaped.... Quincy looper rings....end......Kstone.... self cleaning......omc and force rings at 90 # cut are fragle......JMO....I like the newer OME merc rings stout......

**Motv18** · 05-14-2019, 10:46 PM

Eli, boobies are ok but to big and things start knocking when they shouldn’t, so keep um flat and you’ll stay safe. Now dished is just for blowers.

**Chaz** · 05-15-2019, 08:45 AM

Best of both worlds "Monster Energy Cup"

.028 x .140 He11fire top
.032 Napier second
2 mm 10 lb oil ring

Unless they came out with something better in the last couple weeks since Talladega ...

Dave ... need pit-cher of 3.4 crank to get back on - off topic ...