Forged pistons and Ring Glands (N20)
10-26-2005, 09:30 PM
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Forged pistons and Ring lands (N20) Ive heard of guys cracking pistons down to the top ring land using stock pistons while spraying nitrous (100-200 shots), will forged pistons ever crack?
What caues this crack to happen and why is upgrading to a forged piston important?
What caues this crack to happen and why is upgrading to a forged piston important?
Last edited by ATLHwyRacer; 10-27-2005 at 11:19 AM.
10-26-2005, 10:11 PM
#2
Uhhmmm.... it's ring LAND.... not ring gland.... but you prolly knew that 
Anything can break given enough stress. A forged peice is your best bet for longevity in a PA motor. With a propper tune, it(forged piston)will last as long as a stock peice used in a stock application.
The reason guys are craking ring lands is :
A) too big a hit on a hyperutectic(cast) piston..... or....
B) too big a hit on a ragged edge tune..... or....
C) A&B
Anything can break given enough stress. A forged peice is your best bet for longevity in a PA motor. With a propper tune, it(forged piston)will last as long as a stock peice used in a stock application.
The reason guys are craking ring lands is :
A) too big a hit on a hyperutectic(cast) piston..... or....
B) too big a hit on a ragged edge tune..... or....
C) A&B
10-27-2005, 04:44 AM
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Originally Posted by ATLHwyRacer
Ive heard of guys cracking pistons down to the top ring land using stock pistons while spraying nitrous (100-200 shots)
10-27-2005, 10:55 AM
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Running too rich will lift ring lands like no other. Too lean will start to burn the piston if temps get much above 1500 degrees. With a hyperpathetic piston, which has no tolerance for detonation, it will simply crack apart and/or explode. The forged piston can handle much more detonation and heat, but still has its limits.
10-27-2005, 12:15 PM
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Originally Posted by ATLHwyRacer
Ahh ring land!
What sort of limits L0nSl0?
Also on the topic of DP systems, are these harder on the pistons than a convention Wetkit?
What sort of limits L0nSl0?
Also on the topic of DP systems, are these harder on the pistons than a convention Wetkit?
10-27-2005, 12:17 PM
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Originally Posted by XTrooper
A 200 shot, maybe. On a 100 shot with a proper tune? Highly unlikely.
It can be done you just have to be real talented. That is how I destroyed my stock motor.
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10-30-2005, 09:48 PM
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Originally Posted by LowETz
Uhhmmm.... it's ring LAND.... not ring gland.... but you prolly knew that
Anything can break given enough stress. A forged peice is your best bet for longevity in a PA motor. With a propper tune, it(forged piston)will last as long as a stock peice used in a stock application.
The reason guys are craking ring lands is :
A) too big a hit on a hyperutectic(cast) piston..... or....
B) too big a hit on a ragged edge tune..... or....
C) A&B
Anything can break given enough stress. A forged peice is your best bet for longevity in a PA motor. With a propper tune, it(forged piston)will last as long as a stock peice used in a stock application.
The reason guys are craking ring lands is :
A) too big a hit on a hyperutectic(cast) piston..... or....
B) too big a hit on a ragged edge tune..... or....
C) A&B
Stock ring gaps are the reason that people break pistons. Use a good low tension ring and youd be surprised how strong they really are. I was spraying over 235rwhp worth of juice on mine and it was all good. What wasnt was the fact that I broke one my low tension rings sliding the pistons back in the block and didnt want to wait on them supplier to ship me a new one. I used a stock ring with matching gap as the rest, but its also a cast ring. Its closed up and broke the ring land.
All the other pistons are perfect and all look black.
10-30-2005, 09:49 PM
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Originally Posted by ATLHwyRacer
Here is a picture of what im talking about.
Use some good low tension rings, gap the top ring at .024 and the 2nd ring at .028, stock oiling ring and you will be good to go. Just dont break a ring when putting the slugs back into their holes.Mike
