cast or forged pistons

[The Funk]

Doing a build this winter and was still up in the air on what piston to run. Its not going to be a dd but will see some street use. I'm leaning more towards the forged arias and was wanting to know how Meany miles people were getting out of them. Its going to be a big single truck with a lot of spray wanting over 1200 hp

 

[JoshH]

Definitely forged if you're going for that kind of power unless you want to shell out the $$$ for Monotherms.

 

[LWATSON]

If you were going to be in the 750-850 range id say Mahle race performance cast or Fingers new pistons. But with your goals I would definately go Arias forged.

 

[The Funk]

Yeah I was looking at the race cast but didn't know how they would hold in the 1000 range .

 

[PureHybrid]

I still vote for cast, depending on how often you spray it. Aftermarket cast pistons are still very strong, even most of the high HP Cummins guys still use factory cast pistons at that power level. I understand its a whole different animal than a Dmax, but they still use Mahle pistons...

 

[PACougar]

I'm running the race cast Mahle's. I guess I'll find out what there limit is

 

[Evan@InglewoodTrans]

With your goals I would go forged without a doubt.

 

[quadracer37]

The aries are Better suited for pulling/drag only app I would use the Mahle forged for street use. I'm still up in the air what I'm going to put in mine this winter between fingers cast mahles or the forged mahles.

 

[The Funk]

I will put no more than 5k on the street in a year. I would hate to put a cast in there and be worried about.it all the time

 

[quadracer37]

Sounds like forged is gonna be the way to go for you then.

 

[dmax711]

Has anyone really pushed fingers pistons to there failure point yet?

 

[Evan@InglewoodTrans]

Has anyone really pushed fingers pistons to there failure point yet?

I hope not Next year they will be getting a decent amount of power thrown at them in our truck.

 

[quadracer37]

Has anyone really pushed fingers pistons to there failure point yet?

i dont think there has been any failures yet. i know they are in 10-12 engines, 4 of them are in the 1000+ range. possibly mine soon :woott:

 

[x MadMAX DIESEL]

Has anyone had ring problems on forged pistons? Or is it just one of those things that everyone says will happen, but never does.

 

[JDub]

Colby at Adrenaline Performance is running the Mahle Forged pistons in his LB7 motor, believe it's in the 800 on fuel and 1050 on spray range. Last I talked to him, think he said he had about 40,000 miles on the motor. I'm curious to hear how long those pistons can go before running into oil consumption and ring issues...

 

[Stingpuller]

Race pistons

If you want a race motor (1200 hp) there is only on option. Arias would be the only choice.

 

[The Funk]

I Rember reading on here a few years ago that someone was down on compression but never did see anything else about it.

 

[The Funk]

how meany miles are people getting out of the arias.

 

[paint94979]

Not many 10-15000 miles before new rings are needed... I too would go Arias

 

[quadracer37]

the mahle forged are made of a different grade aluminum then the arias and ross. they dont expand as much after warmup so they do not require as tight of a piston/wall cleareance. its the cold starts before the pistons are expanded that really puts the abuse on them. a street driven truck may see 3-5 cold starts a day where a competition motor might only be once or twice a week thats why they dont last as long in street trucks. Guy has almost 80k miles on mahle forged, he told me that he has seen some street motors barely get 12k before they had excessive blow by with other pistons.