Piston squirters

[TT350]

Has any one retro fitted there 4.3’s with piston squirters ?
I’ve been looking for an edge for my new pump gas motor.
It seems like all the factory turbo cars and trucks built in the
last 10 years are so come with piston squirters to cool the
pistons. This has got to help detonation. If you think about
water carries the heat away from the combustion chamber
and cylinder walls but the piston is left to fend for it’s self.
I like a good hard core tech tread you guys give me your
two cents.

Chris

 

[skata]

Re: Piston squatters

Re: Piston squatters

you mean squirters?

yeah that would be nice if you could somehow install them.

 

[TT350]

Re: Piston squirters

Thanks for the spell check

 

[MRKING]

Re: Piston squirters

would this have an added benefit if one already had alcohol inj ? or does the same thing ?

 

[SyTyJedi]

Re: Piston squirters

Piston squirters shoot oil up into the bottom of the piston when they are on the exhaust part of the stroke. (Headed towards the oil pan) Gravity causes the oil to run back down to the pan, taking some of the heat from the piston with it. Alot of turbo import cars have them from the factory, and they are located on the connecting rods I think. Been awhile since I have seen a motor with them torn apart. And that, is all I know.

 

[crashing_sux]

Re: Piston squirters

I wonder how much of it is too cool the combustion chamber and how much is too cool the piston. I just sent my pistons to Swain Tech to get coated and help them stay cool, supposed to reduce detonation as well. Time will tell on that one.

 

[MikeRenz]

Re: Piston squirters

my 95 honda motor (non turbo) had oil squirters to help the almighty vtec and almost 8k rpm redline:

 

[blk00z28]

Re: Piston squirters

How much heat are we talking here? 5 degrees? :roll:

 

[MikeRenz]

Re: Piston squirters

How much heat are we talking here? 5 degrees? :roll:

yea...motors typically run at about 5 degrees fahrenheit.

apparently you never studied any fluid dynamics. Why doesn't a blacksmith just wait for metal to cool down, how come he always dips it in water. it can't make that much of a difference :roll:

 

[dgoodhue]

Re: Piston squirters

How much heat are we talking here? 5 degrees? :roll:

EGT (exhuast gas temps) are 1300 degrees, therefore the piston must be getting very hot. oil temps are usually are 200 or so. I bet it has a chance to cool the piston its quite a bit.

 

[blk00z28]

Re: Piston squirters

EGT (exhuast gas temps) are 1300 degrees, therefore the piston must be getting very hot. oil temps are usually are 200 or so. I bet it has a chance to cool the piston its quite a bit.

Oh I understand that. I was just asking how much. Does anyone really know? :dunno: It could only drop it a little for all we know. I could see this more as a wrist pin luber then a cooler.

 

[TT350]

Re: Piston squirters

The factory cast the blocks gust for this. If it didn’t help
I don’t think they would go thru all that trouble for nothing.

 

[BigAl...]

Re: Piston squirters

I'm guessin it's pretty hard to actually measure the temperature drop but it has to be substantial, like dave said the piston has to be near the 1300 mark so hitting it with anything thats around 200 degs will cool it down. since there will be much more heat transfer one might consider upgrading the oil cooler. I've contemplated this before, I suppose one would have to tap into an oil gally either in back or front of the engine and run a small hard line (properly attached with some adel clamps) into the bowels of the block and attach some squiters.

BigAl...

 

[93ty475]

Re: Piston squirters

I rebuilt an older 7.3 diesel back in the day and it had them....Also my newest KW with a cummins N14 has them and they're made of plastic and are replaceable from the outside of the engine....nice idea 350...

 

[93ty475]

Re: Piston squirters

 

[TT350]

Re: Piston squirters

What size are the jets?

 

[93ty475]

Re: Piston squirters

the picture I posted is of a later model powerstroke diesel...they must have improved their design as the ones that I had experience with were on a non-turbo block and merely "pressed in" kinda how our dipstick is pressed into our GM blocks....

 

[bigtime]

Re: Piston squirters

Starion and conquests used them also. To much work for a little gain if you ask me.

I can only imagine the plumbing nightmare that would be.

 

[BigBadSmoosh]

Re: Piston squirters

Starion and conquests used them also. To much work for a little gain if you ask me.

I can only imagine the plumbing nightmare that would be.

Bob hath spoken, thus I know I don't need them. :tup:

 

[TT350]

Re: Piston squirters

When I’m satisfied I have enough info on jet size
I’ll make it happen. All the great drag racers in
in history didn’t get there by playing follow the leader
or saying I can’t. If your scared say your scared.