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Old 01-31-2005, 07:51 PM
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Cylinder pressure

How much cylinder pressure will the Total Seal Gapless rings make over non-gapless rings? ....2nd ring gapless that is.

Comparing apples to apples. If engine "A" has 170 psi cylinder pressure and engine "B" has the exact same combo but has "Gapless" rings. How much more psi could we expect??....10, 20, 25 psi increase??

I`ve read all the threads this was not touched on.

Thanks

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Old 02-01-2005, 08:43 AM
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It really depends on how well the conventional rings are set up. With proper honing for the ring type and end gap set per manufacturers instructions a conventional ring set will do just fine until the pressures get really high or the engine gets a lot of miles on it, then the gapless rings stand out.

Larry
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Old 02-01-2005, 04:09 PM
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This site explains most of it. Even its for a aired cooled motor its better than Total Seals site.
I use a sealed second ring also.
http://aircooled.net/gnrlsite/resour...les/pcrops.htm
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Old 02-01-2005, 05:28 PM
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On a street motor you won't see or feel a thing over a good set of rings and total seal. Best to be left for the drag strip where every little bit helps.I've built drag motors with both kinds of rings and i do like total seal for some applications.
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Old 02-01-2005, 07:27 PM
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You really have to look at the leak down rate of the rings, this is considered compression loss and contributed's to positive crankcase pressure. They seat allot faster also.
Most do not want to spend more for the better rings, as most of the case on other motor parts.
As the bore gets larger the total seal have less leak-down than regular gap rings, self explanatory.
They are better with Hyper pistons because you can have a larger end gap and not loose any leak down.
I use them on all my motors, plus on our drag car.



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On a street motor you won't see or feel a thing over a good set of rings.

ONLY better compression, longer ring , & oil life would be seen on the street.
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Old 02-02-2005, 06:53 PM
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Keith. I wasn't trying to tell you total seal doesn't have a good product.Because they do and in some cases they can't be beat. But a proper bored and honed block will perform fine with standard rings for 1000s of miles. Each has its place and if you feel $120.for rings over $50. is money well spent by all means go for them. I would be surprised if you would see more than 10 or 20 horse difference. I don't see that as a big deal on a street motor.More hp is always nice but i don't see one trip to the mall with 400 hp and one at 380.you will see the difference.But total seal should have a better seal in most cases.Iv'e never used total seals on any of my street motors to see how they work after they have 150,000 miles on them . On drag motors most get no more than one season on them before they get pulled down and new rings and bearings. Thats whats so nice about this site all kinds of different thougts on things. Some people think fords are best some chevy some something else dosn't mean anyone is wrong.
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Old 02-02-2005, 09:27 PM
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George good to see you again! All 3 of you thanks.

My question was to finish my engines combo. I am building a 86 Trans Am. Street/Strip to the best that I can do, I have found that this is harder to do than making a strip/race car.

My 350 short block was professionally machined,balanced and assembled but it came back a little lower of a CR than expected. I was shooting for a 9:72.1 with my forged flat tops and my Comp Extreme 230/236 cam. My CR is more towards a 9:3 to 1. But I already had some rhodes lifters, gapless rings, 373 gears and an aluminum shaft to help the bottom end. I will also toss on 150 "Sniper" shot of the juice. I do have the sub-frames, LCA`s and Panhard.

I believe high 12`s are there, I was just shooting for a low 12 street / strip car.
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