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Thread: Oil Restrictors or Not?? Reply to Thread
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Topic Review (Newest First)
03-25-2013 02:18 PM
S10 Racer
Quote:
Originally Posted by 1Gary View Post
going to say this straight on.anytime you have shop that does this for a living willing to share the knowledge,you should be grateful,stop,listen and learn!!!.if it becomes too much of a pita,they just move on.
That's why I took them back out. I asked the question and followed the suggestions from the pros.
03-25-2013 02:13 PM
1Gary [B]going to say this straight on.anytime you have shop that does this for a living willing to share the knowledge,you should be grateful,stop,listen and learn!!!.if it becomes too much of a pita,they just move on.[B]
03-25-2013 07:34 AM
snakebit68
rings

CNC Blocks....ummmmmm, some of us need those egg shaped rings to fit our egg shaped cylinders. LOL
Been file fitting rings for years without issue....well, except when I break one while filing it because I'm just a wildman.
03-25-2013 07:00 AM
1Gary Was looking at this and thought of you:

Sprint Car Engines: The Current State-of-the-Art: Engine Builder
03-24-2013 02:22 PM
CNC BLOCKS NE
Quote:
Originally Posted by MouseFink View Post
Did you ever wonder why file-fit rings are .005" OS?
For example: File fit rings for a 4.030" bore are 4.035" .

Using file fit rings is a waste of time...and money, especially if you are paying some "expert" to fit them. You should install rings that selectively fit the bores as is.

Or, use Total Seal gap less rings, if you don't mind some ring flutter at high RPM..
Are you an idiot or what???????????????????? Where do you dream this stuff up???

You sure have made alot of my friends who build engines laugh.

If there were issues with egg shaped rings I think I would have seen it by now and my leak down numbers are under 2% Egg shaped rings HMMMMMMM
03-24-2013 11:56 AM
1Gary Said better than I:

Steel Compression Rings with Reduced Radial Wall Thickness: Engine Builder
03-24-2013 11:15 AM
CNC BLOCKS NE [
Quote:
Originally Posted by engineczar View Post
Consider the source Carl, remember this thread where we all learned that filing ring end gaps makes the rings egg shaped?


http://www.hotrodders.com/forum/exce...bc-225396.html

.
Quote:
Quote:
Originally Posted by MouseFink
Never use forged "racing" pistons that use 1/16" top and second rings in engine that is driven daily. . The 1/16" rings are low tension rings to be used on low silicon forged pistons in high RPM racing engines. The 1/16" rings have poor oil control at low RPM. Always use forged pistons that use 5/64" top and second rings. Those type pistons set up at .002" - .0035" clearance and utilize oil return slots instead of return holes in the oil ring lands.

If one insist on using 1/16" low tension rings, a block plate should be used when honing the bores. The 1/16" low tension rings require perfectly round cylinder bores and the ends should not be file fitted. File fitting makes rings progressively egg shaped. Select the 1/16" low tension rings using a bore light and use only the rings from several sets that fit the bores as is. In drag racing engines using thin low tension rings, block filler such as "Hard Blok" should be considered.

Automakers today are using low tension metric rings in new cars to improve gas milage.


Quote:
The 1/16" low tension rings require perfectly round cylinder bores and the ends should not be file fitted. File fitting makes rings progressively egg shaped.
This guy is a joke for sure and does not have a clue LOL. I use alot of Mahle power pack piston and ring kits 1.5 1.5 3.0 MM file fit rings and to date no issues on the street.

I will have keep that thread on had for future use.
03-23-2013 10:40 AM
S10 Racer
Quote:
Originally Posted by CNC BLOCKS NE View Post
Looks like quite the build, Is this a sprint car??
Yes it is Carl. We race wingless sprints.
03-23-2013 09:41 AM
1Gary IF he is going to hit this with any power adder,he has to file set the ring gap.
03-23-2013 06:32 AM
MouseFink Did you ever wonder why file-fit rings are .005" OS?
For example: File fit rings for a 4.030" bore are 4.035" .

Using file fit rings is a waste of time...and money, especially if you are paying some "expert" to fit them. You should install rings that selectively fit the bores as is.

Or, use Total Seal gap less rings, if you don't mind some ring flutter at high RPM..
03-23-2013 06:01 AM
engineczar Consider the source Carl, remember this thread where we all learned that filing ring end gaps makes the rings egg shaped?


http://www.hotrodders.com/forum/exce...bc-225396.html




.
03-23-2013 01:53 AM
CNC BLOCKS NE
Quote:
Originally Posted by engineczar View Post
Wow and all these years I thought it was to pull a vacuum on the crankcase, You learn something new everyday.

.
If the evac system is pulling oil out that thing must look like a crop duster going down the track LOL.

Just when I think I have heard it all some one always seem to come up with some BS

I guess I learned something TOOOOOOO

Thanks for your post

Carl
03-23-2013 01:49 AM
CNC BLOCKS NE
Quote:
Originally Posted by S10 Racer View Post
Ok, I did buy restrictors and put them in but then took them back out and plugged the holes. I'm running a 3 stage dry sump system and the Dart SHP block is designed for priority main oiling so flow to the bearings should'nt be a problem. I am running Lunati Solid Rollers (.300 taller), Comp Cams 3/8" Tapered Chrome Moly Pushrods w/T&D Shaft Rockers on AFR 227cc Aluminum Heads. Here are a few pictures of the motor, almost done. Thanks for all your input.
Looks like quite the build, Is this a sprint car??
03-22-2013 07:55 PM
S10 Racer Ok, I did buy restrictors and put them in but then took them back out and plugged the holes. I'm running a 3 stage dry sump system and the Dart SHP block is designed for priority main oiling so flow to the bearings should'nt be a problem. I am running Lunati Solid Rollers (.300 taller), Comp Cams 3/8" Tapered Chrome Moly Pushrods w/T&D Shaft Rockers on AFR 227cc Aluminum Heads. Here are a few pictures of the motor, almost done. Thanks for all your input.
03-22-2013 04:13 PM
engineczar I know it's a bit off topic but I cringe when I hear people talk about adjusting valves on engines with hydraulic cams with the engine running. I know lots of guys do it, I just don't know why. The mess alone plus the fact that it's not all that accurate is reason enough for me.
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