Oil Squirters? [Merged 8-9]

[Hobbes =^.^=]

I may be building a stroker engine. And the 4g64 shortblocks don't come with oil squirters. Should I have them machine shop put 1g style ones in? If so how much should it cost me? Or should I not use them, and get my pistons ceramic coated.

I have heard that are alot of turbo-charged cars don't have oil squirters.

Thanks in advance.

 

[kottyking]

If yout using aftermarket pistons (ie:ross, JE) don't worry about oil squirters.

 

[dsmfa9nutter]

If you are using aftermarket FORGED pistons, you don't need them. If you are using CAST pistons, you need them.

 

[bwhite]

You dont need them at all. I have a N/T block in my car with all stock internals - balance shafts. I run 22 to 26 psi daily. Its all in the tune.

 

[shift2drift38]

I know this one's old but I'm gonna ask . I have an N/T 6bolt 4g63, 166k Miles, I'm replacing every gasket, belt, seal etc... It came out of a 92 GS A/T and is going to be dropped in my 95GST M/T. I'm curious if I should pull the squirters and clean them like I've been reading, only to be conflicted with the "you dont NEED them" theory....It's going to be my first rebuild, and I'm going to replace the 9.1 pistons with 1g 7.8's. Will 20-25psi be ok to run? I read somewhere that when it hits boost, it would blow up the squirters ....can someone give me a 2nd opinion on that call? Thanks!

 

[dsmfa9nutter]

What? The n/t does not have squirters let alone any that could be pulled and cleaned. For your CAST stock pistons, you should use a turbo block that has squirters. They are not hard to find.

 

[gettingwop]

I recently got my block back from the machine shop after an align bore. I left the oil squirters in the block, they took them out and can't locate them. I am pissed they did this, but it's time to plug or replace. However, it was my fault for not taking them out, or knowing what they we're at the time I took the engine down. This leads me to think we need a thread regarding these items as they are important pieces in our engines design, or redesign depending how you treat them during a rebuild.

For the sake of argument we'll be discussing the 6 bolt application.

If these squirters are just to cool the pistons. If I plug the holes what are the end results aside from a warmer piston and higher oil pressure?


I have experience with only a few other engines. I never saw oil squirters until I took 4g63's apart. I would like to say these aren't a big deal on N/A cars which are under average compression. However with our engines pushing high pressure in the combustion chambers wouldn't the oil squirter be a big help to increasing the life of the pistons?

I have heard of people making upward of 750hp w/o the squirters. I am interested to see what you guys think. There isn't a great deal of discussion about these parts aside from there part numbers.

Replace the squirters or block them?

Advantages/disadvantages of blocking the oil squirters?

Advantages/disadvantages of keeping the oil squirters?

Any experience without the squirters (6-7 bolt)?

 

[DSM_PWR]

Is this for DD or Race Applicant?

For a DD i'd definetly replace them, they cost next to nothing IMO, i think like $8 a pop...

For Race Applicants, i know a few people running without them with no problem...

ALSO... this topic has been covered before plenty of times... Try searching the topic next time

http://www.dsmtuners.com/forums/bol...quirters-problem.html?highlight=oil+squirters

http://www.dsmtuners.com/forums/bolt-tech/162862-oil-squirters-keep-em-trash-em.html

 

[Defiant]

I recently got my block back from the machine shop after an align bore. I left the oil squirters in the block, they took them out and can't locate them.

Good luck to them buying you new ones.

Yes, they were put in for a good reason. Keep them.

 

[slowgsr]

N/A dohc vtec honda motors run them from factory.

 

[Cesar]

pistons that are prone to cracking due to excessive heat require them.

forged pistons are designed to expand, so depending on what clearances you want to run you may/not want to use them.

you should have made up your mind before machining the block. The time and cost of plugging the holes properly is more than a N/T block.

 

[dsm-onster]

N/A 4g63 motors with stock cast factory turbo pistons swapped to them are motors that go just as far and just as long without oil squirters. I've personally have had identicall success with and without oil squirters using CAST oem pistons. I've seen no difference in knock threshold or reliability. In fact, I've only cracked pistons in the oil squirter equipped block. The n/t to turbo block (no squirters) has done great, sold to a friend with big boost on a 20g. Daily driven, and he's an unsafe driver.

 

[Strm Trpr]

I know you can eliminate the 2g 7-bolt oil jets.
But, can you machine the 2g 7-bolt block to accept 1g or Evo style Oil Squirters?

I want to build a Road Racing 2.3L 7-bolt, and I want to utilize the 1g or Evo oil squirters since they fit better when used in a 2.3L application.

I know most people eliminate the oil squirters when using forged pistons, but this fully forged engine will not be used for your typical 10-12 second rip down the 1320...

It will be used as an Endurance Road Racing engine.
It will see constant long full boost sprints on straights for 30+ minutes at a time.
So I want as much oil cooling as possible.
I already have the Evo III OFH with an air to air oil cooler set-up waiting to be installed, so that's another reason why I want to go with a 7-bolt platform.

The 1g 7-bolt 4G63T has the 1g style oil squirters.
I actually found a 1g 7-bolt long block, which would be perfect, but the guy is not willing to ship it to me.

Let me know what you guys know.

 

[dnhieu]

i cant see why you cant drill and tap it to fit whatever oil squirters you want...

 

[Strm Trpr]

That's what I'm hoping, but I don't have access to a 2g 7-bolt 4G63 to take a look.
This guy on the SoCalEvo forums did this to a 99 Galant 4G64 for use in his Evo.
These particular 4G64's are 7-bolts, have the 7-bolt girdle, have the thrust washers and no oil jets.
Anyone know if we can swap these 99 Galant 4G64's into our cars?
SoCalEvo.net : My 4G64 block after machine work *PICS*

 

[Strm Trpr]

According to this web page, :: Project Zero G :: - Sirius Engines any Mitsubishi 4G6X Sirius Engine can be modified to use the 1g style oil squirters.

So, more than likely I'll pick up a 98 Galant SOHC 4G64 short block and have the oil squirters machined into the block to accept the Evo Style Oil Squirters.

 

[Jay Zarcadius]

i'm rebuilding a 6bolt engine to be a turbo, but the base motor was a non turbo so it didnt have the oil squirters in it. do i need to put them in? and if i need them that bad where would i find them?

 

[godfather75]

You don't need them.

 

[LiquidX]

Do some searching on oil squirters it seems to be about half and half with the need of them.

 

[evileagleawd]

If you are replacing the pistons with forged parts then you dont need them.

 

[Rob10_99]

No, not needed with aftermarket pistons. Only "really" needed if your pushing 400hp on stock shortblock.
Which wouldn't last long anyway.
Oil in your bearings, head and turbo.... or oil splashing up at your piston skirts and getting whipped around?

Pick one.

 

[91 TSi GP]

Oil Squirters are overrated.

 

[Jay Zarcadius]

stock shortblock for those wondering, with a set of stock replacement pistons for a turbo motor. all new gaskets and bearings everywhere. stock turbo for now, so nothing crazy. i'm planning to build the other 6-bolt i have later though thats in the car now. it's also a non turbo, but i was planning to take my time and build it as a race motor. forged everything, big turbo dont kno which one yet, new valvetrain and cams, etc. would they be required for that build? or since everything else is going to be built for the power will it be alright without it?

 

[ApexVIII]

what did you end up doing?

or if he is no longer on(thread is from 2002 ),

what do you guys think? i am in the same boat.

 

[LiquidX]

There was another thread about this a few days ago. A lot of people said you didn't need them but I'd run them. They are put in there for a reason.

 

[need2boostpsi]

You don't need them with forged pistons, you can call the piston manufacter and they will tell you the same thing. Oil squirters help keep the stock cast pistons cool and lubricated, but the forged pistons are made to withstand the heat. when building a 2.4 its not worth the trouble to have them machined in. if one sticks open it could also cause trouble.

The factory also put Balance shafts on the motor, we all know that they are a risk not worth having.