piston recomendation?
08-12-2004, 11:32 PM
#1
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Join Date: Mar 2004
Posts: 324
piston recomendation?
gonna be tearing my engine down for a rebuild soon. im buying eagle 6" i beam rods for it. i need a good set of lightweight pistons for it. dont need anything exotic or anything, going with a mild cam and no spray or anything. thanks -dave
08-13-2004, 12:40 AM
#4
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Join Date: Nov 2001
Location: In a house by the bay
Posts: 2,985
Re: piston recomendation?
I ran the KB hypers in a bracket engine with a 150hp shot plate-system for a whole race season without any problems. Refreshed the motor, ~.0003 on the bore with a hone, changed the pins and rod bolts, zygloed the pistons (they were good) and put it back together. Ran it for another season, then found the pin bores had a little elongation. But not bad for that kind of abuse. Car ran very consistent 10 second 1/4's, ~3000 lbs and on a really tight budget build.
So I'd say they can handle a little nitrous if your tune is ok. 150 isn't what I'd call a big shot though.
-Mindgame
So I'd say they can handle a little nitrous if your tune is ok. 150 isn't what I'd call a big shot though.
-Mindgame
08-13-2004, 09:25 AM
#7
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Join Date: Dec 2003
Location: Oklahoma where trees are made of wood.
Posts: 2,725
Re: piston recomendation?
Originally Posted by Mindgame
I ran the KB hypers in a bracket engine with a 150hp shot plate-system for a whole race season without any problems. Refreshed the motor, ~.0003 on the bore with a hone, changed the pins and rod bolts, zygloed the pistons (they were good) and put it back together. Ran it for another season, then found the pin bores had a little elongation. But not bad for that kind of abuse. Car ran very consistent 10 second 1/4's, ~3000 lbs and on a really tight budget build.
So I'd say they can handle a little nitrous if your tune is ok. 150 isn't what I'd call a big shot though.
-Mindgame
So I'd say they can handle a little nitrous if your tune is ok. 150 isn't what I'd call a big shot though.
-Mindgame
About 10 years ago before when they were just Keith Black diamonds series (or whatever) We had a set in a 355 TPI motor the car was putting about 360 hp to the wheels. It ran good for 6 months then it just shattered !!! We tore it down and discovered a bent valve up top and a shattered piston below. The timing chain had come off the cam and held a few valves open one piston was shattered, 6 others had a scuff on them from valves, but no cracks or other signs of destruction to the pistons.
I am using them now in my 383,I was planning on switching to forged later to run a little hose or some very mild boost (5 to 6 psi). I may rethink that if you have this kind of confidence in them Mindgame.
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