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Old 08-14-2016, 05:13 PM   #1
Precip
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Default DNJ pistons and rings review?

Does anybody know if the DNJ pistons and rings from rockauto are any good? I don't want to go forged and the stock pistons and rings are weak so I was thinking about DNJ. Does anyone have any experience with them?
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Old 08-15-2016, 12:06 AM   #2
user1029
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Dude wat
What's wrong with forged Manley Pistons? They have potential to last 80k plus miles
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Old 08-15-2016, 12:13 AM   #3
Precip
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Originally Posted by user1029 View Post
Dude wat
What's wrong with forged Manley Pistons? They have potential to last 80k plus miles
Because I want something to last more than 80k and I don't have the money to buy forged.
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Old 08-15-2016, 12:30 AM   #4
monkeyposeur
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Did your stock motor blow or are you just feeling like changing your pistons?
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Old 08-15-2016, 12:32 AM   #5
Precip
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It blew.
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Old 08-15-2016, 12:32 AM   #6
Precip
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Originally Posted by monkeyposeur View Post
Did your stock motor blow or are you just feeling like changing your pistons?
It blew.
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Old 08-15-2016, 06:44 AM   #7
Paul
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There was a member that used them on a stock rebuild and they seemed nice enough. I don't think he has a lot of miles on the motor to give a long term review tho.

Dnj make decent products so for a stock rebuild Id use em
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Old 08-15-2016, 02:32 PM   #8
Precip
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There was a member that used them on a stock rebuild and they seemed nice enough. I don't think he has a lot of miles on the motor to give a long term review tho.

Dnj make decent products so for a stock rebuild Id use em
Do you remember his name?
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Old 08-16-2016, 07:17 AM   #9
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Old 07-12-2019, 02:48 PM   #10
bootsak47
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Default *!Bump from the dead!*

I used a set of DNJ 92.5mm, with accompanying machine work done to the case halves on an ej205 rebuild... Spun #2 some time ago... About a year after I had abnormal oil consumption, compression was 145 across all cylinders...
#2 and #4 cracked at the oil control ring lands, going to try enginetech as their valves seem decent...
Surprised it still ran as good as it did...
It just had ate a lot of oil, and was chasing my tail on thinking it was a bad turbo!

https://photos.app.goo.gl/Mgg7bCMQM7nNbCkZ9
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Old 07-13-2019, 05:11 PM   #11
subaru_gc8
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Quote:
Originally Posted by Precip View Post
Does anybody know if the DNJ pistons and rings from rockauto are any good? I don't want to go forged and the stock pistons and rings are weak so I was thinking about DNJ. Does anyone have any experience with them?
so you would rather go with a stock knock off?
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Old 07-18-2019, 03:13 AM   #12
bootsak47
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Default Weak!

I was trying to help the next person on an important decision... ^ True! Stock knock off, it broke... Not even knowing what this guy is putting it into... Could help ;? I hit 22psi on a turbo 02 wrx ej205 quite a few times on DNJ pistons, but at the same time I found 2 of 4 cracked/broken ringlands scraper to oil control on 2yrs and maybe 30-40k if that! But I do know the stockers were a little oil crusty but otherwise looking damn good for 220k+ ;pĒ My .02, maybe Iíll try Enginetech, or wait a few more weeks and get some stock 92.5mmís... They have dropped quite a few doll hairs at the Wilde Subaru Waukesha, now $54/1 or $114/4 Enginetech...
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Old 07-18-2019, 12:48 PM   #13
pcampbell
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Why not try NPR pistons instead?
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Old 07-18-2019, 06:41 PM   #14
Turn in Concepts
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Ok - I have a guess on where this is going, but I want to make sure.

OP - you have a 08-14 WRX or STi with about 80-120K on it and you've cracked a ringland. Now you're looking to replace the cracked pistons with something, but do to it as cheaply as possible.

Am I on target here? If so let me know as I will more than happily offer up some very hard learned advice.
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Old 07-20-2019, 02:48 AM   #15
subaru_gc8
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Quote:
Originally Posted by Turn in Concepts View Post
Ok - I have a guess on where this is going, but I want to make sure.

OP - you have a 08-14 WRX or STi with about 80-120K on it and you've cracked a ringland. Now you're looking to replace the cracked pistons with something, but do to it as cheaply as possible.

Am I on target here? If so let me know as I will more than happily offer up some very hard learned advice.
you get what you pay for?
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