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Replacement Pistons


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#1 Mighty_Mitsu

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Posted 24 April 2019 - 04:19 PM

Hey all, engine was down on timing, decided to go through the bottom end. It's all good, admittedly a little gummed up, but I figured while I'm in here  I'd pick up some new pistons. Ordered up a set from DNJ, and they look totally different than what was in there. Don't even have skirts! Am I better off just tossing rings on the OEM pistons? http://imgur.com/a/aQYNLF8

I'm really not trying to run a bunch of power on this thing, just trying to have a fun winter beater, so I'm not interested in dumping $500 into pistons. Has anyone else ran the DNJ parts?

Thanks.





#2 tsi_tom

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Posted 24 April 2019 - 08:12 PM

I was going to reuse my pistons.  Use simple green.  Look at my restoration on how clean they can become.  I switched to forged pistons only because I had rust in the my cylinder walls.
Engine
20 over forged pistons
Stock injection system

My restoration project: The Missouri Project

#3 tsi_tom

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Posted 24 April 2019 - 08:16 PM

http://www.starquest...pic=135264&st=0

3/4 the way down
Engine
20 over forged pistons
Stock injection system

My restoration project: The Missouri Project

#4 Dad

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Posted 25 April 2019 - 04:42 AM

The DNJ pistons will work fine.

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#5 Dad

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Posted 30 April 2019 - 12:55 PM

Those pistons are boxed wrong,

#6 03CL55AMG

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Posted 30 April 2019 - 06:58 PM

This post made me think of a question for Dad...dad race prepped my stock rods( did a hell of a job to)...what is the rule of thumb for HP rating on those.
Forged motor, weisco pistons ,3" exhaust, garret 60 cold/ 70 hot turbo, bosch 1000cc injectors. meth kit. chads intake and header. holly EFI stand alone. *DM intercooler. grimspeed boost controler. stock cam.

#7 Dad

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Posted 01 May 2019 - 04:39 AM

View Post03CL55AMG, on 30 April 2019 - 06:58 PM, said:

This post made me think of a question for Dad...dad race prepped my stock rods( did a hell of a job to)...what is the rule of thumb for HP rating on those.


I don't have that answer, however talk on the web says stock rods are good for around 500 hp,  but  IMHO that is really pushing them.

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#8 03CL55AMG

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Posted 01 May 2019 - 09:04 AM

Thanks dad...I would agree that is a lot for a stock rod.
Forged motor, weisco pistons ,3" exhaust, garret 60 cold/ 70 hot turbo, bosch 1000cc injectors. meth kit. chads intake and header. holly EFI stand alone. *DM intercooler. grimspeed boost controler. stock cam.

#9 jinx

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Posted 02 May 2019 - 04:07 AM

I believe only a handful will ever reach the limits of oem pistons or rods, with a good MPI tune
The 'magic' is in tuning + finding that cam that actually works & dialing it in. Compatible valvesprings too

#10 Ressurect1on

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Posted 09 May 2019 - 05:55 PM

i say go Arias pistons with 8.8: 1 ratio, and do an E85 conversion.. but that's me.

personally i want to go arias pistons with Pauter rods. and some additional machining with the crank and ion nitriding, but i like overkill.

#11 TexasQuest

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Posted 09 May 2019 - 09:07 PM

I am the same way, over build. Better safe than sorry. You know, piece of mind...
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View PostJohnnyWadd, on 04 March 2010 - 10:01 PM, said:

my shaft was big i dont know what your talking about.

<SOS> http://sosmanuals.minagera.org/
<SQ Garage> http://www.starquestgarage.com/




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