Ive got a TT 402 that I am wondering the same question for. 
Piston Rings Boosted?
Thread Starter
TECH Fanatic
iTrader: (13)
Joined: Sep 2006
Posts: 1,434
Likes: 3
From: Houston TX/Worldwide
Piston Rings Boosted? Ok since my motor is out I need to get this done also. I am told wrong ring gap can cause alot of crank case pressure..
So with that said.
I was told best to go with as far as a ring setup would be a file to fit top ring and a gapless ring for the 2nd. I have no idea where to start on this and wanted feed back before I buy anything.
So with that said.
I was told best to go with as far as a ring setup would be a file to fit top ring and a gapless ring for the 2nd. I have no idea where to start on this and wanted feed back before I buy anything.
I just bought a set of rings from Total Seal that were spec'ed for 1000rwhp and 25 psi of boost on a 347. They used a 1.5/1.5/3.0 ring set and a c33 steel top ring. Call Total Seal and talk to them about your motor/set-up and they will get you a ring set that will work.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Originally Posted by blacktransam
ok what are your recommended gaps for the hell fire rings.. as giving someone a type of ring with no spec is absolutely pointless...
should i gap them to .000 ???
LMAO
should i gap them to .000 ???
LMAO
All depends on the combo, how much boost you intend to run, dry sump, vacuum pump, etc.
talk to your machinist, he can recommend the app gap.
Originally Posted by 1INSANEGTO
Alex I will be calling you later today.
18psi Max on a T76 Qtrim and I am going to run a vac pump.
18psi Max on a T76 Qtrim and I am going to run a vac pump.
I wouldn't feel comfortable telling you what to gap your rings at.
Thread Starter
TECH Fanatic
iTrader: (13)
Joined: Sep 2006
Posts: 1,434
Likes: 3
From: Houston TX/Worldwide
Originally Posted by Alex @ CMS
Hellfire pro-series w/ cast iron second ring.
Pro Series Rings
Speed-Pro Pro Series rings, designed for the professional racer, offer features that maximize horsepower, including:
Reduced widths and radial wall thicknesses in the top and second rings for lower tension and enhanced sealing
Plasma-moly facing on the top ring for instant seating and long life
Cast iron second rings, with tapering face profile and open-gap design for lower inter-ring pressure buildup and excellent oil control at even the highest RPMs
Pro Series rings include a very low-tension, thin-profile version of the SS-50 oil rings with a wire latch mechanism to simplify installation.
I have used hellfire rings before on my syclone running around 15-20lbs of boost and they are awesome. even before i put the vacuum pump on they sealed great even under full boost.
My question is who do you get them from for a ls series engine? Anyone recommend a good shop to purchase from?
My question is who do you get them from for a ls series engine? Anyone recommend a good shop to purchase from?
On The Tree
Joined: Oct 2005
Posts: 160
Likes: 0
From: PNW
If you go with a gapless ring, I would suggest Child & Alberts Zero Gap rings.
To find the ring gap, someone should have a reference, or ask the ring or piston manufactor what they recommend. It's usually so many thousanths of an inch of gap per 1 inch of bore. So if you have a 3.905 more, and it called .005" for F/I motors, then you multiply .005" x 3.905 and get .0195" gap. But I would guess it should be around .025" for the top ring. But that's just a ball park number.
To find the ring gap, someone should have a reference, or ask the ring or piston manufactor what they recommend. It's usually so many thousanths of an inch of gap per 1 inch of bore. So if you have a 3.905 more, and it called .005" for F/I motors, then you multiply .005" x 3.905 and get .0195" gap. But I would guess it should be around .025" for the top ring. But that's just a ball park number.
