OEM replacement pistons - hypereutetic vs cast?
#1
OEM replacement pistons - hypereutetic vs cast?
is it worth it to pick up a set of replacement pistons, say by ITM or some other manufacturer? I've heard that the oem pistons are stronger than cast ones, which I assume is how the replacement ones would be made.
background- I've got the block totally apart right now, and am deciding how to proceed. I plan on going with some ebay forged rods and either reusing my oem pistons (they appear to be decent) or getting some replacement 1.6 323 gtx pistons for the lower CR.
Any ideas? I don't plan on going over around 200 whp. I know the stock internals should be fine for that, but since everything is already apart, I'd kick myself down the line if I didn't replace SOMETHING right now.
background- I've got the block totally apart right now, and am deciding how to proceed. I plan on going with some ebay forged rods and either reusing my oem pistons (they appear to be decent) or getting some replacement 1.6 323 gtx pistons for the lower CR.
Any ideas? I don't plan on going over around 200 whp. I know the stock internals should be fine for that, but since everything is already apart, I'd kick myself down the line if I didn't replace SOMETHING right now.
#4
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You can make all sorts of power on a cast piston if there is no detonation.
The strength of a forged piston does 2 things, it gives you a little more forgiveness during detonation before it melts/breaks, and it will be able to take higher side load and piston speed before breaking. This is more about revs than power.
The GTX pistons look very stout.
If they dont suffer from some hidden defect they should be capable of much more than the small amount of power most people are making.
The strength of a forged piston does 2 things, it gives you a little more forgiveness during detonation before it melts/breaks, and it will be able to take higher side load and piston speed before breaking. This is more about revs than power.
The GTX pistons look very stout.
If they dont suffer from some hidden defect they should be capable of much more than the small amount of power most people are making.
#5
Given that this is the first car I'll be tuning on my own, i also wanted the lower comp pistons to stave off any effects of detonation, in case I don't catch it in time.
I want to stick with around 200 for now due to the fact that I've heard the 5 speed starts getting unreliable around 250, as well as having to worry about other things such as radiator and oil cooler.
I read somewhere (can't remember where off the top of my head) that in terms of internals, the first thing to go are the rings and pistons, followed by the rods. Is there any truth to this?
I want to stick with around 200 for now due to the fact that I've heard the 5 speed starts getting unreliable around 250, as well as having to worry about other things such as radiator and oil cooler.
I read somewhere (can't remember where off the top of my head) that in terms of internals, the first thing to go are the rings and pistons, followed by the rods. Is there any truth to this?
#6
No. You need to start reading the 1000000 threads on that subject and stop asking stupid ******* questions before we gangbang you
If you're clueless enough to not know what goes 1st in ours motors, then you have wasted every single one of the 4 years you've been on this site.
We are all disappointed.
If you're clueless enough to not know what goes 1st in ours motors, then you have wasted every single one of the 4 years you've been on this site.
We are all disappointed.
#7
holy crap i've been on this site for 4 years... i too... am disappointed.
That being said, I know the consensus is that rods go before anything else, but I was also curious if anyone has had pistons or rings go bad before the rods.
The cheap ebay pistons seem to list the 323 gtx, even the turbo, pistons as being 9.3:1 CR. Haven't seen any of the 7.8:1 ones yet. I'll probably end up staying with my old oem pistons, just clean them out and balance them with the rods as best I can.
That being said, I know the consensus is that rods go before anything else, but I was also curious if anyone has had pistons or rings go bad before the rods.
The cheap ebay pistons seem to list the 323 gtx, even the turbo, pistons as being 9.3:1 CR. Haven't seen any of the 7.8:1 ones yet. I'll probably end up staying with my old oem pistons, just clean them out and balance them with the rods as best I can.
#11
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I just asked, neogenesis2004 and he said he got his ones from corksport. So I would suggest trying there if you are serious about finding some.
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