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Author Topic:   Recommended Rings for a mild 289
deadhead
Gearhead

Posts: 153
From:
Registered: Sep 2002

posted 09-11-2002 10:54 PM     Click Here to See the Profile for deadhead   Click Here to Email deadhead     Edit/Delete Message   Reply w/Quote
Gents,

I was looking at the Federal Mogul website and they list over two dozen different ring types. I need you all to narrow down the field and point me in the right direction.

What type ring and what manufacturer should I choose for a mild street 289 rebuild?

deadhead

Check out this site;

http://www.federalmogul.com/sealedpower/index.html

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mstngjoe
Journeyman

Posts: 64
From: Oregon
Registered: Aug 2002

posted 09-12-2002 12:03 AM     Click Here to See the Profile for mstngjoe   Click Here to Email mstngjoe     Edit/Delete Message   Reply w/Quote
Check out the Sealed Power sets at www.flatlanderracing.com

------------------
My Mustang
My engine

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Moneymaker
Administrator

Posts: 19751
From: Lyons, IL, USA
Registered: May 99

posted 09-12-2002 12:20 AM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
What kind of pistons? Is the block bored? That would dictate the type of ring material to be used.

------------------
Alex Denysenko
Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator

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Quote: "I never met a magazine mechanic I liked."

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deadhead
Gearhead

Posts: 153
From:
Registered: Sep 2002

posted 09-12-2002 08:57 AM     Click Here to See the Profile for deadhead   Click Here to Email deadhead     Edit/Delete Message   Reply w/Quote
I'm still leaning towards the Federal Mogul (Sterling) hypereutectic coated skirt pistons. .030 over bore. 5/64" top and second rings, 3/16" oil ring.

deadhead

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Moneymaker
Administrator

Posts: 19751
From: Lyons, IL, USA
Registered: May 99

posted 09-12-2002 11:07 AM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Then all you need is a decent quality cast ring set with a stainless oil ring. Don't waste your money on a moly set.

------------------
Alex Denysenko
Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator

NHRA/IHRA/SRA/MCA member
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Part time secret agent license #0089
Professional Manwhore
The Barry of BarrysGrrl

Quote: "I never met a magazine mechanic I liked."

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deadhead
Gearhead

Posts: 153
From:
Registered: Sep 2002

posted 09-12-2002 11:11 AM     Click Here to See the Profile for deadhead   Click Here to Email deadhead     Edit/Delete Message   Reply w/Quote
MoneyMaker,

Do I need to buy file fit or can I go with standard? I read some posts that hypereutectics need larger ring gap, although the Federal Mogul web page doesn't indicate that. I'm currently looking for more info.

Flatlander Racing has TRW Hypers for just a little more than the FMs. Recommendation?

deadhead

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Moneymaker
Administrator

Posts: 19751
From: Lyons, IL, USA
Registered: May 99

posted 09-12-2002 11:15 AM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Standard gap .030 SP's or Hastings will work great.

------------------
Alex Denysenko
Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator

NHRA/IHRA/SRA/MCA member
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Part time secret agent license #0089
Professional Manwhore
The Barry of BarrysGrrl

Quote: "I never met a magazine mechanic I liked."

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stang106
Gearhead

Posts: 734
From: God's Country!... Port Alberni B.C. Canada
Registered: Jul 2001

posted 09-12-2002 11:24 PM     Click Here to See the Profile for stang106   Click Here to Email stang106     Edit/Delete Message   Reply w/Quote
I used the FM hyperutectics and unfortunately gapped the rings to Ford specs-0.016"- Then the rings butted and I lost a piston through the cyclinder wall. I then gapped both rings at 0.021" . I used Hastings Chromemoly but go with Moneymaker.
Dave

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deadhead
Gearhead

Posts: 153
From:
Registered: Sep 2002

posted 09-12-2002 11:50 PM     Click Here to See the Profile for deadhead   Click Here to Email deadhead     Edit/Delete Message   Reply w/Quote
stang106,

I have a friend at the machine shop who's doing the work on my 289. Life is good. He doesn't like the coated skirt of the FMs. He says sometimes they have to force the psiton in the bore. He suggested a buy a set of TRW hypers instead. Same FM part number, but without the coating. I called FM's customer tech assistance line and asked the guy on the other end if I needed to use a wider ring gap and he said "Not on our pistons" in a very matter-of-fact tone.

I read the hyper doom threads. I didn't think the second ring gap mattered.

Sooooo, should I gap it at .021, .016, or split the difference? Hmmmm.

deadhead

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stang106
Gearhead

Posts: 734
From: God's Country!... Port Alberni B.C. Canada
Registered: Jul 2001

posted 09-13-2002 02:21 AM     Click Here to See the Profile for stang106   Click Here to Email stang106     Edit/Delete Message   Reply w/Quote
Deadhead,
The FM hyperutectics I used also did not say to widen the gap. They were the non-coated-skirt type. The gaps butted at 0.016" and I lost one piston and a cylinder. The engine builders here on M&M say to gap them at 0.020-0.024" If I were to build another motor, I wouldn't touch ANY hyperutectic and I would use Forged pistons, which are more forgiving. I did a 'budget' rebuild. Price them out.
Good luck!
Dave

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deadhead
Gearhead

Posts: 153
From:
Registered: Sep 2002

posted 09-13-2002 11:07 PM     Click Here to See the Profile for deadhead   Click Here to Email deadhead     Edit/Delete Message   Reply w/Quote
I'm going to shamelessly bump this back up to the top. However, someone has to tell me how a ring gapped per factory recommendation based on extensive testing expands more than it was designed to just because its piston has extra silicon.

deadhead

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Moneymaker
Administrator

Posts: 19751
From: Lyons, IL, USA
Registered: May 99

posted 09-14-2002 12:08 AM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
The bore was too small.

------------------
Alex Denysenko
Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator

NHRA/IHRA/SRA/MCA member
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Part time secret agent license #0089
Professional Manwhore
The Barry of BarrysGrrl

Quote: "I never met a magazine mechanic I liked."

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Calcat
Journeyman

Posts: 75
From: Los Angeles, CA
Registered: Feb 2002

posted 09-14-2002 01:54 AM     Click Here to See the Profile for Calcat   Click Here to Email Calcat     Edit/Delete Message   Reply w/Quote
Deadhead - my spin is that because the hypers have tighter piston to wall clearances and do not expand like cast or forged, the ring would need a larger gap as piston expansion would not increases the gap like with a forged piston. Couple this with the heat expansion of the ring itself, which causes the gap to lessen, and you would need a larger gap to start with.
Where's my excedrin?

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V8 Thumper
Gearhead

Posts: 3529
From: Orange, Ca. United States of America
Registered: Dec 2001

posted 09-14-2002 07:19 AM     Click Here to See the Profile for V8 Thumper   Click Here to Email V8 Thumper     Edit/Delete Message   Reply w/Quote
Hypers absorb/retain alot of heat

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