Mahle Forged Diesel Racing Pistons - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 36 (permalink) Old 10-29-2009, 06:26 AM Thread Starter
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Mahle Forged Diesel Racing Pistons

So, since they released this summer, has anyone used these yet? And if you have, how are they holding up? They can be had in lower comp ratios, anyone any info?



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post #2 of 36 (permalink) Old 10-29-2009, 12:27 PM
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Re: Mahle Forged Diesel Racing Pistons

Them are sweet looking... Interested as well

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post #3 of 36 (permalink) Old 10-29-2009, 01:02 PM
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Re: Mahle Forged Diesel Racing Pistons

Seems like I remember reading somewhere that forged pistons aren't meant for daily driving. Not sure though. Doesn't Ross make a set also? I'm thinking that's where I saw it.

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post #4 of 36 (permalink) Old 10-29-2009, 01:59 PM Thread Starter
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Re: Mahle Forged Diesel Racing Pistons

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Originally Posted by imelmo View Post
Seems like I remember reading somewhere that forged pistons aren't meant for daily driving. Not sure though. Doesn't Ross make a set also? I'm thinking that's where I saw it.

.
I have seen too many stock Mahle pictons cracked thru or with holes burnt thru them. One of the few items remaining I need for my final build is pistons/rings. Whatever I get will be coated too. These are looking good, but want to know if anyone has tried them yet.

aka - Grumpy .. aka - Bubba Grump .. aka - Bubba .. aka - Grumpy Old F... . . A "slow" fatass 9K Dually.
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post #5 of 36 (permalink) Old 10-29-2009, 02:16 PM
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Re: Mahle Forged Diesel Racing Pistons

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Originally Posted by imelmo View Post
Seems like I remember reading somewhere that forged pistons aren't meant for daily driving. Not sure though. Doesn't Ross make a set also? I'm thinking that's where I saw it.

.

There is no reason why you cant run forged for daily driving. They require more cylinder to piston wall clearence than a cast, so warm ups are Manditory. But other than that I'd run them for sure. If you build a gas motor with a Blower, Turbo, Nitrous you wont find a builder that would recommend a cast piston so I can't belive it has taken this long for a Forged Diesel Piston, they probibly did just not for a ford. Oil cooled and Forged Just imagine how much abuse these things will be able to take.

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post #6 of 36 (permalink) Old 10-29-2009, 02:35 PM
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Re: Mahle Forged Diesel Racing Pistons

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There is no reason why you cant run forged for daily driving. They require more cylinder to piston wall clearence than a cast, so warm ups are Manditory. But other than that I'd run them for sure. If you build a gas motor with a Blower, Turbo, Nitrous you wont find a builder that would recommend a cast piston so I can't belive it has taken this long for a Forged Diesel Piston, they probibly did just not for a ford. Oil cooled and Forged Just imagine how much abuse these things will be able to take.

It has not taken this long for forged...Arias has had them for YEARS....

IF they don't have steel ringlands, Coatings do not work, then they are NOT a daily driver piston period. Forged pistons in a gasser are not even REMOTELY close to diesel. The Keystone rings will wear a coating off in no time, and then you will be able to put 2 rings in that upper land real quick.
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post #7 of 36 (permalink) Old 10-29-2009, 02:39 PM
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Re: Mahle Forged Diesel Racing Pistons

Sounds like they need to spend some time on developing some rings that will live in a forged piston.


This is somthing I found in a article that adds to what Wacker was saying.

Hard anodizing the upper ring land helps, as does using a steel rectangular shaped top ring. But these forged diesel pistons are intended primarily for “short run” racing, not your average daily driver pickup truck that may also be used for towing.

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post #8 of 36 (permalink) Old 10-29-2009, 02:53 PM Thread Starter
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Re: Mahle Forged Diesel Racing Pistons

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Originally Posted by Wackerjr View Post
It has not taken this long for forged...Arias has had them for YEARS....

IF they don't have steel ringlands, Coatings do not work, then they are NOT a daily driver piston period. Forged pistons in a gasser are not even REMOTELY close to diesel. The Keystone rings will wear a coating off in no time, and then you will be able to put 2 rings in that upper land real quick.
So have you or Zane looked at or used these yet? Or not planning on it?

aka - Grumpy .. aka - Bubba Grump .. aka - Bubba .. aka - Grumpy Old F... . . A "slow" fatass 9K Dually.
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post #9 of 36 (permalink) Old 10-29-2009, 02:58 PM
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Re: Mahle Forged Diesel Racing Pistons

Quote:
Originally Posted by Wackerjr View Post
It has not taken this long for forged...Arias has had them for YEARS....

IF they don't have steel ringlands, Coatings do not work, then they are NOT a daily driver piston period. Forged pistons in a gasser are not even REMOTELY close to diesel. The Keystone rings will wear a coating off in no time, and then you will be able to put 2 rings in that upper land real quick.
That's what I saw, Arias. Thanx.

.

EMPIRE DIESEL, PERFORMANCE TRUCK PRODUCTS, CEN-TEX DIESEL PERFORMANCE, AND DIESEL INNOVATIONS

ALSO LOTS OF HELP FROM (IN NO PARTICULAR ORDER) TWISTED DIESEL PERFORMANCE, FCDP, ITP, MATT WITH GEARHEAD, ERIC WITH INNOVATIVE, DOUG WITH GOGO DIESEL, CASS WITH FULL FORCE DIESEL, AND SWAMP'S

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post #10 of 36 (permalink) Old 10-29-2009, 03:00 PM
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Re: Mahle Forged Diesel Racing Pistons

Simple amswer is don't use keystone rings

Total Seal makes a nice non keystone style ring.

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