I came across a set of Oil-squirter Block-offs. I was wondering if anyone knows of any advantage to using them. I really haven't heard of anyone using these, and I am sure Honda had a reason to use piston oil squirter's. The company that sells them states that it gives the rest of the engine more oil pressure and reduces aeration. Anyone care to put their two-cents in?? Thanks

 

they are generally used in engines with forged pistons. forged pistons can dissipate heat faster/better than stock cast pistons...so in theory forged pistons don't need the squirter's to help cool them off.

also some forged piston skirts are longer than OE pistons and they can hit/damage the squirter's if they are not carefully adjusted during assembly.

IMO i would leave the squirter's in....extra cooling is always a plus and its extra lubrication for the piston pin is always good.

 

in a way i guess the motor would have more oil pressure in different spots.. i've never thought of it that way..

but..

the reason why i ran them was because everyone using the wiseco piston's that i'm using (11:8) would have clearance issues with the oil squirters and people would either bend them or block them off.. i chose to block mine off because i didn't know how weak the metal of the squirter would get after i bent it out of the way..

from my understanding the purpose of the squirter is to cool the piston down rather than lubricating it..

others will chime in and give you their .02

 

That's really it. that, and they clear up a clearance issue b/w the LS Crank and aftermarket pistons.

 

Kind of off topic, but on your LS crank swapped B18C. Are you using stock rods? If so what bearings are you using, LS or GSR/ITR?

The main reason I ask is Im curious to know if unlike the LS bearings (which features a hole in the rods bearing for oil pressure relief, im guessing) do the OEM GSR/ITR rod bearings feature this hole too? Because I know the B16 rod bearings dont.

 

well i am using Honda USDM Type R pistons in my ls vtec and i have no oil squirters and it is running fine...but if you going to use a Honda piston in your block i would just use them...

 

i look these up on google for GSR rod bearings and they have the holes like a LS rod bearing has...i know B16 does not have the holes and i thought that was interesting myself...

 

They look like the mains with that central groove, I've never seen B18C rod bearings personally but are you sure those are rod bearings?

 

you know your right that is main bearing i guess google images let me down my bad

 

All good, I counted 10 of them and more or less knew they were the mains beside the obvious groove.

Back before i built my motor I was wanted to find a GSR block and swap my LS crank into it while reusing my OEM rods, so I always questioned which bearings to go with since I sort of suspected that the B18C rod bearings might not feature that hole like the B16 rod bearings unlike the LS rod bearings which of course corresponds to a chamfer hole in the LS rod it self.

No biggie, I'll find my answer if I search harder. It just came to mind when I saw Shodan make a post since he built an LS crank swapped B18C, so i thought I'd ask.

 

you know my buddy rebuilt his GSR but it is like 11:40 PM over here and he is sleeping and i don't want to ask him a random question like that...lol

 

ahahaha.....no worry's its not that important, but thanks though...

 

I don't recall GSR rod bearings having the holes for oil, I only have a set of ACL's in front of me right now and only the main bearings have holes. Are you wanting to use your gsr block with an LS crank and GSR rods?

 

No, I don't have GSR block. I've already built my motor using an LS block, but before I decided to just go with a typical LS/VTEC I was considering buying a B18C block and just swapping in my LS crank to build an 89mm stroked GSR.

One of my concerns/questions I had about dropping the LS crank into the B18C block was the rod bearing design with, or without the hole. This might sound silly, lol.... But since the LS rod bearings featured this hole I wasn't sure if the B18C rod bearing had this hole or not, since I've never seen one personally and also since I have seen B16 rod bearings which did not have this hole.

I assumed that "if" the B18C rod bearings didn't feature this hole, then the crank journals of a B18C crank might not feature an oil chamfer passage on the crank journal/rod journal for oil pressure supplied to the rod bearings (which sounds improbable to me now, but this was a while back).

I thought that the oil squirter's in the B18C helped to cool the pistons as their primary function while also slinging enough oil around through out the bottomend to lubricate the rod journals/bearings as a secondary function even though I'm probably wrong and thats probably not the case thinking back on it now.

Long story short, I wanted to utilize GSR/ITR bearings for their tri-metal design if ACL's didn't make a suitable fit since ACL's tend to be one size and I was wondering how GSR/ITR bearings would work when used with an LS crank.

Looking back at the B18C bottom end vs the LS, I'm pretty certain now that the B18C crank has an oil chamfer passage on the crank journal just as the Ls crank does for lubrication and is probably standard in any engine, Im sure.

My thoughts about the two bearings designs are, perhaps the hole isn't present in the B18C rod bearing to help keep oil pressure at moderate levels on the rod journals since the oil squirter's are present in the B18C block vs the LS block. I suppose oil pressure would be generally higher in the LS block due to the absence of the squirter's which more or less explains the hole present the LS bearings that corresponds to a matching hole in LS rod for oil pressure to bleed from running back to the oilpan.