singh groove

[crazycalvin]

Is this something someone could do at the house or do you need to send out to have done?  What about the effects on compression and carbon build up?  It seems like on a high compression build you could risk the head gasket failing at the groove point.  Thanks, Calvin.

[Quick_2s]

Is this different than a squish groove?

[tireater]

I did my own squish grooves on my 95" FLHT, burns cleaner, rerouted breather to ground, got 2 1/2hp 3ft lbs and 5 more mpg...Of course I'm happy!!! I also did my 103" St Bob...Redyno tune this weekend...

[crazycalvin]

If the squish groove is the notch that is cut into the combustion chamber at the edge, then I guess they are the same thing.  I think Larry was the one that put them on some heads on the MSN HTT, but it is slower than h@ll over there.  Thanks, Calvin.

[crazycalvin]

Tireater, do you have pix and can you tell me how you did it?  I am thinking about doing it to my heads when I do my BB and cams iin the garage.  Thanks, Calvin.

[PanHeadRed]

Here ya go.





!ROFLMAO!

sorry.

[Sonny S.]

PHR,

You gonna start trying 3 grooves per head I see

[PanHeadRed]

Yeah, excellent!  I will coin the phrase "Tri-Power Trench Quench"

What do I owe ya, 10%?

How bout this one "Smoke" the competition.

!ROFLMAO!

[Sonny S.]

I think you are on to something !!!

Your photo also proves what many have wondered. It's clear that the grooves are in fact self cleaning as there are no ash deposits in them. ALL of the mix is clearly directed to the center of the chamber for a more efficient burn.   

Good job !!

Sonny

[tireater]

Here is a pic of a shaved Deweys 04 pro st head I did the grooves on while I cooked 4 eggos...Thats how long it took.
The plugs are burning very clean and I have the breathers routed to ground...no oil blow by yet..I broke it in hard...

[crazycalvin]

Thanks for posting the picture tireater.  Tireater did you just groove them with a file?  RHP, that was funny as h*ll!  Thanks, Calvin.

[tireater]

A hack saw followed by $4 of needle files....Everyone is funny....But I get an extra gal. of gas per tank...ha ha ha....

[FSG]

I grooved mine using a Bridgeport Turret Lathe, but could have done it with a hacksaw and a rat tail file a lot easier. 

[RoadKingKohn]

For what it is worth.  It is called a "Singh groove" because of the fellow from India that started doing it first.

[FSG]

http://somender-singh.com

[RoadKingKohn]

http://somender-singh.com

Look at that!  I remembered something.

[Faast Ed]

So,.....   RPH, how many bikes you runnin' 'grooves on these days?   

(LOL)  Just kidding, I know you are a non-believer.

[crazycalvin]

Thanks for the input, Calvin.

[Quick_2s]

So judging by the pics this is no where near a precise operation to get the desired affect. Not at all picking on yours just a question.

[Don D]

It can be precise when done on a milling machine with the proper tools and holding fixture

[tireater]

From the good results my homemade grooves are getting...It appears you don't need a mill....or even a garage...

[Killer]

ROFLMAO......

[Deye76]

So,.....   RPH, how many bikes you runnin' 'grooves on these days?   

(LOL)  Just kidding, I know you are a non-believer.

Red's just jealous he didn't try it first. 

[Ken R]

Tireeater, you've reported such good results from your simple two grooves, that's probably what I'll do to mine in a couple of weeks.  (finally going to 95 cu in).  5 MPG is HUGE! That's 25 extra miles per tank!  I'll be happy with any measureable improvement to show for my efforts.    I'll be using the triangular file method. 

I've been to the Singh website, looks like almost any grooves bring positive results, so long as they point towards the ignition source. 

Anyone else have pictures of what they did? 

[Faast Ed]

Anyone else have pictures of what they did? 

WFO Larry did these for me:



45 mpg riding the bike fairly aggressively (70-80 cruise with some playtime to boot, during that test).
103", 54's, mild street port, 1.90 intake, Fatcat & SERT.