How bout this, stock pistons don't expand like forged pistons. Forged pistons are run loose and have to get hot to expand and fit the bore. Squirters can keep them from fully expanding under casual driving and possibly cause more than piston slap. That sound like a good theory?

 

S2K manic, as a road racer and fellow motocross racer for over 22 years I strongly agree with your thoughts on the matter. Road race bikes take a beating much like some S2000s will in track use or very hard driving.

 

Stock pistons ARE forged in this motor though.

Forged pistons don't run loose and then expand, or rather, quality pistons don't, with the exception of Wiseco which IMO still do this thus why I don't run them. My CP pistons do NOT swell more than factory, they don't knock around when cold.

We just had a thread about wiseco pistons doing exactly what you said and it's why I don't prefer em much.

But certainly I agree about the squirters helping a piston to avoid expansion to the point that the piston is forced to the sidewall and damage occurs.

 

Also for the record, run CP pistons and you'll clear the squirters no problem Then there's REALLY no reason to be removing em.

 

Turbos2k, did you read my post? I'll repeat what I said: "Personally I've always been a fan of keeping them, as I prescribe to the notion that honda engineers aren't dumbies." I'm simply saying it's hard to conclusively say if removing them won't result in ill effects w/ aftermarket parts, without talking specifically to engineers. As I said in my post, I agree that they're worth keeping, but yes, many engines don't have them and do fine w/o them as well. That's why I said tomayto vs. tomahto. Always better to err on the side of caution, which is why I said to keep them.

 

Anyone have conclusive evidence that oil squirters prevent engine damage when used in conjunction with aftermarket pistons...

 

I don't represent a shop, if I do a build, it's for a friend in my garage. Thanks for playing though. I prefer to drive the cars, motorcycles, trucks not build em. Just so happens I can do both having been around well known builders and world class techs all my life. LOL


I FOUND THIS IN YOUR PROFILE THOUGH:
Engine rebuild advice pls

03 September 2009 - 10:16 AM
I don't really know much about engine rebuilds so I'm asking for recommendations. I currently have an AP1 (115k miles) with SoS stage 2 recently installed. During the dyno tune we found that the motor really needs to be rebuilt. Did compression and leak down, had losses in both areas.

I picked up a ProFlow head that should work ok (I hope) but I'm not really sure what to do about the bottom end. One thing I'm pretty sure on, I want to keep compression at 11:1. I don't intend to run more boost than I currently have (Approx 12psi) and don't want to kill my daily driving with a low compression build. I thought this might be a good chance to bump up displacement though by maybe doing an AP2 block? This is where I run out of knowledge, I don't even know if thats really possible or a good idea.

So, what do you suggest for rebuilding a motor for a S/C setup, daily driven but also track abused a few times per year.

Thanks,
J


^^^^ Seems you know jack shit on this topic but I'm happy to hear your $.02 thrown in anyway. You're getting upset because I actually demand people back up their ridiculous statements with real factual information? Silly you. What would you prefer? Me to say "oh removing the oil squirters, that's fine cuz they're forged n stuff yo!". I'm sure nobody would get bent out of shape about it but gee, what a benefit to this forum it'd be huh?
[/quote]


Dude, you might want to take a break from this thread. Look at who I quoted. I wasn't replying to you. In fact I was on your side.

So now I think you are as big an ass as the other guy.
This forum sucks more every day.

 

^ Oh, my apologies then. What a silly mistake on my part.

I thought you were claiming to be some expert and then bashing me for my strong stance on keeping oil squirters in place in this motor yet denied thorough knowledge in the bit I quoted you on.

I thought you lazily in error misquoted by typing above the quoted area instead of below it. As for his shop. I hope you recognize my attack on you wasn't for anything other than what seemed to be an unnecessary shot at myself personally for my opinions.

Again, sorry about that.

 

No I got you, I wasn't arguing against your statements but rather taking what you said a step further to pose the question of what sensible reasons exists as to why one would remove them? As we both feel, no harm in keeping them.

I 100% agree with you.

 

Well that's the challenging bit, it's easy to see why something failed, it's difficult to say why it survived because we don't tear down healthy motors for no apparent reason.

Here's what we can logically say though. We know for sure that oil squirters do dramatically decrease piston temperature. We also know that the wrist pin will be better lubricated and cooled as well.

Certainly nobody would argue that a hotter piston is better.

Thus I can only say that oil squirters help the system regardless of piston brand/quality/etc.

I would say that a low quality piston especially one not forged would more greatly benefit from a oil squirter but ANY piston would benefit to some degree. If it wasn't the case, Honda wouldn't have installed them.

Seem logical?

-Greg