Lost piston #7 AGAIN
Thread Starter
Drifting
Joined: Aug 2007
Posts: 1,495
Likes: 0
From: Homer Glen IL
Lost piston #7 AGAIN
Lots of drag racing - stock short block. Number seven is chipped in upper right corner showing the ring. Here is the question.
I have 370 rwhp. Don't need any more.
I have ARP bolts in the rods and a small cam with harlen rockers
Will Forged pistons ALONE eliminate the damage (assuming it is a lean condition) or do I need forged rods too?
By the way. What happens in a lean condition WITH forged pistons? Is there still a risk of other damage?
I have 370 rwhp. Don't need any more.
I have ARP bolts in the rods and a small cam with harlen rockers
Will Forged pistons ALONE eliminate the damage (assuming it is a lean condition) or do I need forged rods too?
By the way. What happens in a lean condition WITH forged pistons? Is there still a risk of other damage?
Tech Contributor
Joined: Jan 2007
Posts: 19,292
Likes: 1,109
From: Dyer, IN
Lots of drag racing - stock short block. Number seven is chipped in upper right corner showing the ring. Here is the question.
I have 370 rwhp. Don't need any more.
I have ARP bolts in the rods and a small cam with harlen rockers
Will Forged pistons ALONE eliminate the damage (assuming it is a lean condition) or do I need forged rods too?
By the way. What happens in a lean condition WITH forged pistons? Is there still a risk of other damage?
I have 370 rwhp. Don't need any more.
I have ARP bolts in the rods and a small cam with harlen rockers
Will Forged pistons ALONE eliminate the damage (assuming it is a lean condition) or do I need forged rods too?
By the way. What happens in a lean condition WITH forged pistons? Is there still a risk of other damage?
Thread Starter
Drifting
Joined: Aug 2007
Posts: 1,495
Likes: 0
From: Homer Glen IL
Tech Contributor
Joined: Jan 2007
Posts: 19,292
Likes: 1,109
From: Dyer, IN
Ok. First to address your question. Yes, forged pistons will hold up much better to abnormal conditions, compared to hyper-eutectic pistons. Forged rods will provide more stability, ARP bolts to prevent stretch, etc.
......the tuner is one possible common denominator.
......the tuner is one possible common denominator.
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Tech Contributor
Joined: Dec 1999
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
AU N EGL
How do you improve oiling to just ONE cylinder? If theres a way,, Im game!
I added a Melling high volume oil pump to my engine and I have good pressure at idle and at high RPMs. What else can prevent the #7 issue??
How do you improve oiling to just ONE cylinder? If theres a way,, Im game!
I added a Melling high volume oil pump to my engine and I have good pressure at idle and at high RPMs. What else can prevent the #7 issue??
Thread Starter
Drifting
Joined: Aug 2007
Posts: 1,495
Likes: 0
From: Homer Glen IL
Burning Brakes
Joined: Oct 2004
Posts: 984
Likes: 23
From: Florence SC
Were the same injectors used in both motors in the same location? If so #7 may not be working 100% for whatever reason. Air leak on that cylinder makes since also. I'm wondering though how forged rods add stability to a rotating assembly. I agree with reliability. Oh well JMO.
Thread Starter
Drifting
Joined: Aug 2007
Posts: 1,495
Likes: 0
From: Homer Glen IL
Tech Contributor
Joined: Jan 2007
Posts: 19,292
Likes: 1,109
From: Dyer, IN
