Piston choice?
#2
Re: Piston choice?
i doubt you will get a definitive answer to this question. its not going to be a landslide where everyone tells you to go get xxx brand pistons. some people may have had good experience with one brand but someone else may think that brand sucks. some good brands to look into would be: cp, je, and wiseco
#4
Honda-Tech Member
Re: Piston choice?
you would almost be better off asking what pistons NOT to use. every one of the quality pistons is a solid choice. mahle, wiseco, cp, je etc
the actual choice is do you want 4032 or 2618
the actual choice is do you want 4032 or 2618
#5
Honda-Tech Member
Re: Piston choice?
you would have to put Mahle first hey ? Anyone would of thought you were hinting something j/k
#7
Honda-Tech Member
Trending Topics
#8
DO IT ON ALL FOURS
Re: Piston choice?
Not to get off topic, but I went ahead and typed "What is the best piston in the world?" into the Google to be a smarty-pants. This is what came up on the first page (may not be safe for work - but not too bad)...
http://mydrunktexts.com/view/received-texts/2644
OP - As stated above, please list more information.
http://mydrunktexts.com/view/received-texts/2644
OP - As stated above, please list more information.
#9
Honda-Tech Member
Re: Piston choice?
Not to get off topic, but I went ahead and typed "What is the best piston in the world?" into the Google to be a smarty-pants. This is what came up on the first page (may not be safe for work - but not too bad)...
http://mydrunktexts.com/view/received-texts/2644
OP - As stated above, please list more information.
http://mydrunktexts.com/view/received-texts/2644
OP - As stated above, please list more information.
#10
Honda-Tech Member
Join Date: Sep 2007
Location: HB, CA
Posts: 137
Likes: 0
Received 0 Likes
on
0 Posts
Re: Piston choice?
JE FSR (I am mildly biased) http://www.jepistons.com/Articles/10...d-Pistons.aspx Very cool.
#12
Re: Piston choice?
"Better" for what?
what is the purpose of the car/engine (daily driver, drag, time attack etc.)?
2618 aluminum is stronger than 4032 aluminum (about 16-17% greater tensile strength and about 12% greater fatique endurance), while having a greater coefficient of thermal expansion (about 14%). The 2618 aluminum is also about 3% heavier.
The 2618 pistons will require greater piston-to-cylinder wall clearance than 4032 pistons, and will be a little noisy and there will be a bit of piston slapping until they heat up. Also, with the 2618 aluminum, there will be more oil consumption and blow-by on cold starts. Finally, the lower expansion of the 4032 aluminum means it should have better wear characteristics.
For street cars, the 2618 pistons are fine if you don't mind the downsides (noise & oil consumption), but they likely will wear faster. The 4032 pistons also are fine for street use. They will take longer to wear, they will be quieter, there will be less blowby when the motor is cold, etc.
The 4032 allows for tighter piston to wall clearance (less heat expansion) which results in generally longer life and quieter operation.
If the engine is going to be boosted hard and frequently, then 2618 may be better.
Piston Alloy Comparison
4032
High silicon
Low expansion
Tighter piston-to-wall clearance
Quiet Operation
*Less ductile
More stable & consistent
Longer life cycle
Harder
2618
No silicon
High expansion
More Piston-to-wall clearance needed
Noise when cold
*More ductile
Higher resistance to detonation
Shorter life cycles
Softer
*(ductile is malleability related to how brittle the material is less=more brittle)
SRP- 4032
JE- 2618
Mahle 2618 & 4032
CP (Carrillo) 2618
Weisco 2618 & 4032
hope this helps
mike
what is the purpose of the car/engine (daily driver, drag, time attack etc.)?
2618 aluminum is stronger than 4032 aluminum (about 16-17% greater tensile strength and about 12% greater fatique endurance), while having a greater coefficient of thermal expansion (about 14%). The 2618 aluminum is also about 3% heavier.
The 2618 pistons will require greater piston-to-cylinder wall clearance than 4032 pistons, and will be a little noisy and there will be a bit of piston slapping until they heat up. Also, with the 2618 aluminum, there will be more oil consumption and blow-by on cold starts. Finally, the lower expansion of the 4032 aluminum means it should have better wear characteristics.
For street cars, the 2618 pistons are fine if you don't mind the downsides (noise & oil consumption), but they likely will wear faster. The 4032 pistons also are fine for street use. They will take longer to wear, they will be quieter, there will be less blowby when the motor is cold, etc.
The 4032 allows for tighter piston to wall clearance (less heat expansion) which results in generally longer life and quieter operation.
If the engine is going to be boosted hard and frequently, then 2618 may be better.
Piston Alloy Comparison
4032
High silicon
Low expansion
Tighter piston-to-wall clearance
Quiet Operation
*Less ductile
More stable & consistent
Longer life cycle
Harder
2618
No silicon
High expansion
More Piston-to-wall clearance needed
Noise when cold
*More ductile
Higher resistance to detonation
Shorter life cycles
Softer
*(ductile is malleability related to how brittle the material is less=more brittle)
SRP- 4032
JE- 2618
Mahle 2618 & 4032
CP (Carrillo) 2618
Weisco 2618 & 4032
hope this helps
mike
Last edited by mikemonster; 01-24-2012 at 09:45 AM.
#13
Honda-Tech Member
Thread
Thread Starter
Forum
Replies
Last Post