Tapered Singh Grooves

[TRS]

Anyone try them?
Hearing positive results. Tapered 5/16" cuts into the sq. area on the pistons. Better bottom end and added HP.
This was Dyno tested on a race ready Fan Cooled 440. I trust the results, it's a buddy.
May have to try it. I'll have to head cut them.

 

[Reg2view]

You've likely done much of the research on the web, but I thought they once pointed to having the most potential on piston ported two strokes. FWIW, may want to check US patent office (PTO) for more details if you haven't, since the kooky eco-nazi indian inventor had a US patent number. By no means am I knocking the concept and application - a mill and dyno time would be hugely revealing. Good luck, thanks for sharing!

 

[TRS]

You've likely done much of the research on the web, but I thought they once pointed to having the most potential on piston ported two strokes. FWIW, may want to check US patent office (PTO) for more details if you haven't, since the kooky eco-nazi indian inventor had a US patent number. By no means am I knocking the concept and application - a mill and dyno time would be hugely revealing. Good luck, thanks for sharing!

Yes, I did research this process and patent after my buddy informed me of his findings.
My issue with the Singh groove piston mod, did the new pistons and rings create the dyno'd performance gain he witnessed? Along with the bottom end clean up? That's why I thought I would post it here to see if anyone else gave it a whirl.
I have also been researching intake tract and piston dimpling. There are more positive reports on this mod from NASCAR, BMW, NISSAN, and many more. One Sanction body had a car that was slow all year, final race of the of the season it was a screamer. They confiscated the car. Upon engine inspection they found a dimpled intake manifold. These were 650 hp NA engines. Upon Dyno testing the manifold against a non dimpled, on the same engine, on two runs the dimpled made 22hp and 24hp more. That is a huge improvement.
Here is a sample of what I am referring to. This is a very intricate design compared to many I have researched.

 

[TRS]

Here is a simpler dimple design. They are also doing this on the piston squish area.

 

[LPIdaho]

This is fascinating stuff! Please keep us informed of what you find

 

[TRS]

The more I research the dimpling. I wonder what impact it would have to airflow when implemented to the internals of charge tubes?

 

[Sheetmetalfab]

The more I research the dimpling. I wonder what impact it would have to airflow when implemented to the internals of charge tubes?

Hmmm
Embossed aluminum sheet could be rolled and welded.......


I might have to toss a spare head on the mill and play with it too.....

 

[Sheetmetalfab]

double

 

[Spaarky]

The more I research the dimpling. I wonder what impact it would have to airflow when implemented to the internals of charge tubes?

You were reading my mind. Only thing is what affect would the pressure have. It's not just a flow.

Also how does affect air that is carrying fuel vs before that point.

I was thinking air box and the injector adapters.

 

[B&M Fabrications]

Well now I'm going to be looking into redoing even more than I already planned on...where to by pre dimpled sheet....

Sent from my SM-G928V using Tapatalk

 

[TRS]

https://m.youtube.com/watch?v=LvVuuaqCC7A

I know this is a golf ball but the dimple affect applies. Neat video.

 

[Spaarky]

Well now I'm going to be looking into redoing even more than I already planned on...where to by pre dimpled sheet....

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There is a company in SW Minnesota that dimpled sprint car wings for this guy I know. I would guess they could produce a sheet for you.

 

[tuneman]

No sure you would get a desired effect by dimpling the intake of a sled. Could create a bog, since dimpling only really works in high air flow situations, like a fast spinning golf ball or an engine running wide open. At low flow, you'd just get a lot of drag. Worth testing, though

 

[05900]

Dimples do grab air Dimples release air as well and create turbulence...
There is turbulent flow and pressure separation in an induction system, what about boundary layer ( laminar or turbulent )....

I would think the intake and ports are so short and have few turns in a naturally aspirated sled....would you see any measurable effect? ? ?
But..a longer charge tube...dimples on short radius side ? Hmmmm Or all sides as above?