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Engine - Turbo & Block Modifications and upgrades to maximize your Dodges turbo output & Improving strength and durability - pistons to crank.

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Old 06-12-2008, 09:17 AM   #16
Re: Keith Black pistons? anyone use them??? how do they hold up?  
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I have a set of 2.2 Keith Black pistons I got from a member here a couple of years ago. I didn't use them, and neither did he (he got them from some one but never used them). The original user ran 22 psi, made good power and they lasted, but he also followed the clearance requirements and they held just fine. I they are for sale (really cheap) if anyone is interested. You may need new rings.
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Old 06-13-2008, 10:57 AM   #17
Re: Keith Black pistons? anyone use them??? how do they hold up?  
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Originally Posted by 22dodge View Post
Your failure is exactly due to ring gaps too tight! Do you remember what you set them at?
Engine shop did it, they were file to fit rings so I can thank them for that
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Old 06-13-2008, 11:05 AM   #18
Re: Keith Black pistons? anyone use them??? how do they hold up?  
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Engine shop did it, they were file to fit rings so I can thank them for that
Won't argue the point with 22 dodge.I've had two different engines do this and it was caused by running 89 octane under boost.It also pinpricked little holes all around the quench area of the head.
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Old 06-13-2008, 12:48 PM   #19
Re: Keith Black pistons? anyone use them??? how do they hold up?  
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Originally Posted by ShelbyMopar89 View Post
Engine shop did it, they were file to fit rings so I can thank them for that
I'll bet they set ring gap at stock spec. KB has a special spec for ring gap. Going off memory, turbo and supercharged engines call for .008" per inch of bore.
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Old 06-17-2008, 10:26 PM   #20
Re: Keith Black pistons? anyone use them??? how do they hold up?  
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TRW and Diamond make some nice inexpensive pistons for our engines too.
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Old 06-21-2008, 05:24 PM   #21
Re: Keith Black pistons? anyone use them??? how do they hold up?  
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if you wana get silly with a N/A motor, id get some pistons made, forged, go with 13.5:1 comp ratio,H-beam rods, copper head gasket,studs everywhere, big cam, custom manifold that will hold a pair of either weber or mikuni carbs( one barrel per cylinder) fill it up with the highest octane race gas you can find and give 'er hell.
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Old 07-19-2008, 12:21 AM   #22
Re: Keith Black pistons? anyone use them??? how do they hold up?  
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puppet, what do trw's or diamonds run? i am assuming you mean forged from both, afaik, diamond only makes forged. i havent found a set for under 4 bills but i just started looking today.
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Old 07-19-2008, 02:29 AM   #23
Re: Keith Black pistons? anyone use them??? how do they hold up?  
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hypeurtectic pistons are lowest on the totem pole. To me they are absolute junk,they are good for the kb company because they can be produced at low cost.But in a turbo motor? no freaking way
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Old 07-19-2008, 10:23 PM   #24
Re: Keith Black pistons? anyone use them??? how do they hold up?  
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Well, hyper-eutectic pistons have their advantages--light weight, allows tight piston -> cylinder wall clearances, and low cost to name a few. They're pretty strong as long as you don't smack them with a hammer.

But if you want something more robust and more resilient to your accidental excessive ignition advance, boost spikes, and detonation or whatever, go with the Mahle piston for cost savings and forged if you want to beat the snot out of it. I wouldn't use them in this application. On a TBI engine, I definitely would.

I have a neighbor with a '69 Camaro that runs 11.6's in the 1/4 with Keith Black ~10:1 pistons. Its an all-out drag race car, so not a lot of actual miles on it. In 10 years, the engine has been apart once because of a valve float issue where the piston smacked the valve. The piston made silly of the valve.
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Old 06-11-2009, 07:56 PM   #25
Re: Keith Black pistons? anyone use them??? how do they hold up?  
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i have personally called kb and spoke to them, and they do not recommend there 2.2 pistons for anything over 10 psi of boost.
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Old 08-24-2009, 04:04 PM   #26
Re: Keith Black pistons? anyone use them??? how do they hold up?  
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Chrysler does not reccomend them in turbo engines
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Old 08-27-2009, 11:53 AM   #27
Re: Keith Black pistons? anyone use them??? how do they hold up?  
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Holy old thread batman! Nice to look back at the good old days when 22dodge/allmotor would berate the newb's.. I wonder if his altzheimers finally kicked in, don't see him around anymore..
sigh... the good ol days
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Old 08-27-2009, 03:27 PM   #28
Re: Keith Black pistons? anyone use them??? how do they hold up?  
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turboAMX is keeping the peace
Donovan's garage has an article on them from Ed Peter's retired engineer.
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Old 09-10-2009, 09:59 PM   #29
Re: Keith Black pistons? anyone use them??? how do they hold up?  
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Quote:
Originally Posted by crusty shadow View Post
keith black pistons are whats known as hyperreutectic alloy. ( i didnt spell that right)
The proper spelling is "hyper-you-broke-it"

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