How-To: File Fit Piston Ring End Gap For BOOST

Ring filer - www.howtomotorcyclerepair.com...
Piston rings - www.howtomotorcyclerepair.com...
Summit Racing - www.howtomotorcyclerepair.com...
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[@HTMR]

Ring filer - www.howtomotorcyclerepair.com/summitringfiler Piston rings - www.howtomotorcyclerepair.com/summitpistonrings Summit Racing - www.howtomotorcyclerepair.com/summitracing

[@GS_Twan]

Would you be willing to make a custom size for the ring setter ? I need a 86.5 mm if you are willing to make :)

[@HTMR]

@@GS_Twan Use a roll of tape like I mentioned in the video. Glue roll of tape to some plexiglass with a knob on it. Same thing.

[@Ph-vl1fm]

@@HTMR how the 3rd rings?

[@Wooley689]

Good video, do like the 3-D printed tool idea, saves from any accidental piston damage from using the piston to square the rings.

[@maskedmotorsdiy3575]

Very satisfying and soothing to watch. Like watching a mechanical gourmet chef, each step is so important to the meal at the end.

[@robwinter3183]

Great video. I think I figure out why my piston is so tight in the cylinder. Going to measure the gap and file if needed. Thankyou.

[@walterhuizer4568]

Thank you Matt for sharing this information. I have build a few engine's but had never heard about this before.

[@squarefour1]

Perfect.

[@jm361]

Awesome, glad you shown the paper that shows how to set the rings.. Everyone else has a their own theory on what clock position to set the top and bottom rings etc.. Thanks for sharing! I have been looking for something exactly like this! It appears you have Gen 4 rods! My motor is an 05 (my lm7 came from the electric hybrid truck) and I took a peak and whew what a good feeling to know what rods are in the block!

[@HTMR]

Yup glad I have gen 4 internals!

[@chouchou3652]

Does the first ring (top ring)needs to be more clearense then the 2nd ring or contrary . Or which one should be more clearence then the other??????. Could you tell me please

[@vannakkeo7453]

Nice!

[@Boosted370]

It's usually good practice to have the 2nd ring .002" larger than the top. But I guess every manufacturer is different. I only use Wiseco professional pistons and GFX rings. Good video tho definitely help others in their build

[@handyishrandyish334]

I was supposed to hit 24 on mine two are at 25 the rest at 24 is that ok and if so my second ring also called for 24 should I take it to 25 to match the mess up

[@MisdaadKanaal2K22]

1:03 he can sleap each night hahahha

[@evilgoatgarage4193]

Do you have a STL for the piston square tool?

[@HTMR]

Shoot me an email. Tool is for a 3.78 bore.

[@str8xrippin]

Please help, I'm supercharging a 440cc 4 stroke engine and it's going to roughly put out 9 or 10 pounds of boost. How much ring gap should I pull maybe 20 thousand or 15?

[@HTMR]

Use the formula I show in the video. It is based off bore diameter. Also ring mfg will play a role.

[@str8xrippin]

@@HTMR Alright thanks bro, I will do some calculations and some more research on this topic. I never knew this was a thing but it makes complete sense when you imagine a boosted engine running on higher temp and compression. Thanks for the help.

[@beachboardfan9544]

Why would the hypereutectic pistons have a larger ring gap than the forged/cast, I thought one of the benefits of a hyper piston was how themally stabile its dimension are?

[@thefinalroman]

They are glass. Love to crack

[@Ashroyer86]

What do you do for the main portion of your living?

[@HTMR]

Mechanical Engineer

[@Ashroyer86]

@@HTMR makes sense. And good idea on your printed tool.

[@user-nl1cg4mp4w]

Did you get your crank and pistons balanced

[@HTMR]

no

[@tyferguson564]

Could I buy one of those 3d tool pieces from you?

[@HTMR]

Just moved, 3d printer is buried somewhere.

[@tyferguson564]

Do you file the 3 rings at the bottom?? Oil rings?

[@HTMR]

@@tyferguson564 I did not.

[@user-nl1cg4mp4w]

Did engine run fine without balancing crank

[@HTMR]

It's up and running and runs good. This was a budget 500-600rwhp build.

[@user-nl1cg4mp4w]

@@HTMR ok thanks for letting me know

[@matthewdato8032]

Made the mistake of cutting off a bit of that middle oil ring. We put in on the piston groove and didn't want it to overlap and decided to cut it, machine shop didn't understand why I did it but thankfully am going to get another set and slap them in before I put the engine all back together. Glad someone told me about this before I assembled the engine and put it back into my truck at least.

[@ceoink3936]

What if there is no gaps

[@jameslewis5163]

Please send me a ring squaring tool please Block is at shop now. I’m not kidding Need one please