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Any downsides to running Napier 2nd rings? #1188138
02/29/12 11:17 AM
02/29/12 11:17 AM
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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BradH Offline OP
Taking time off to work on my car
BradH  Offline OP
Taking time off to work on my car
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Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
I've already got a set of rings for the 452 rebuild in progress, but I'm considering picking up another set that uses Napier 2nds, rather than a standard style. This is a fresh re-hone for a street/strip piece and my intent is to still run standard-tension oil rings, although the ring set I see that includes Napier 2nds is listed as a low tension. Any downsides (besides having to buy another set of rings) to making this switch? Thanks.

Re: Any downsides to running Napier 2nd rings? [Re: BradH] #1188139
02/29/12 11:48 AM
02/29/12 11:48 AM
Joined: Jun 2007
Posts: 251
SD USA
neonic Offline
enthusiast
neonic  Offline
enthusiast

Joined: Jun 2007
Posts: 251
SD USA
I run and have ran Napier 2nd rings. We use them to help scrape the walls down on alcohol motors. Have not seen them run on a gas motor but would think they would work fine.

Re: Any downsides to running Napier 2nd rings? [Re: BradH] #1188140
02/29/12 12:01 PM
02/29/12 12:01 PM
Joined: Jan 2003
Posts: 1,938
Sonora CA
Mopar_Rich Offline
top fuel
Mopar_Rich  Offline
top fuel

Joined: Jan 2003
Posts: 1,938
Sonora CA
No negative. The special "hooked groove" acts like a one way valve allowing good ring action while relieving any excess pressure between ring 1 and 2. Most of the pro racers use them. They work fine with any oil ring style and any fuel.

On my alcohol motor the oil looks like new when drained. With normal rings I used to get a slight amount of oil dilution.

Re: Any downsides to running Napier 2nd rings? [Re: neonic] #1188141
02/29/12 12:01 PM
02/29/12 12:01 PM
Joined: Jun 2004
Posts: 2,360
Mobile Alabama
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SB412DUSTER Offline
top fuel
SB412DUSTER  Offline
top fuel
S

Joined: Jun 2004
Posts: 2,360
Mobile Alabama
I've ran them for 4 or 5 years now, on gas I like them.

Have you tryed just buyng the second ring and not a full set?

Re: Any downsides to running Napier 2nd rings? [Re: BradH] #1188142
02/29/12 02:42 PM
02/29/12 02:42 PM
Joined: Nov 2004
Posts: 3,544
Syracuse,NY
CompWedgeEngines Offline
master
CompWedgeEngines  Offline
master

Joined: Nov 2004
Posts: 3,544
Syracuse,NY
All positive in my book.


RIP Monte Smith

Your work is a reflection of yourself, autograph it with quality.

WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
Re: Any downsides to running Napier 2nd rings? [Re: SB412DUSTER] #1188143
02/29/12 03:49 PM
02/29/12 03:49 PM
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
B
BradH Offline OP
Taking time off to work on my car
BradH  Offline OP
Taking time off to work on my car
B

Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
Quote:

Have you tryed just buyng the second ring and not a full set?



Not cost effective, from what I see for the price of just the 2nd rings...

Re: Any downsides to running Napier 2nd rings? [Re: BradH] #1188144
02/29/12 04:29 PM
02/29/12 04:29 PM
Joined: Feb 2007
Posts: 6,295
U.S.
M
moparniac Offline
master
moparniac  Offline
master
M

Joined: Feb 2007
Posts: 6,295
U.S.
They work great in my local 93 pump gas engine... One thing I had noticed over my last setup was (I run evac system)is that my dipstic tube doesn't pop out at all like it did some before on the big end


Mopar Performance
Re: Any downsides to running Napier 2nd rings? [Re: moparniac] #1188145
02/29/12 06:13 PM
02/29/12 06:13 PM
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383 Offline
Too Many Posts
70Cuda383  Offline
Too Many Posts

Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
Total seal reccomended them on the boost build we're putting together. Stainless top ring and Napier 2nd rings


**Photobucket sucks**
Re: Any downsides to running Napier 2nd rings? [Re: CompWedgeEngines] #1188146
02/29/12 06:17 PM
02/29/12 06:17 PM
Joined: May 2005
Posts: 6,446
NJ-USA
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HPMike Offline
master
HPMike  Offline
master
H

Joined: May 2005
Posts: 6,446
NJ-USA
Quote:

All positive in my book.




mine too...

MB







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