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Thread: Somender Singh Grooves

  1. #1
    Hybrid booster Turbo Mopar Contributor
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    Question Somender Singh Grooves

    Hi,

    doing some research on what could be done to a head while it is off waiting for a new headgasket I fell over @mpgmikes article on Headporting in Allpar (http://www.allpar.com/fix/holler/head-porting2.html) and those Grooves in the Combustion Chamber based on Somender Singh's theory.

    I obviously did some googling and found it difficult to find anything negative about this.

    At the same time I was surprised not having read anything about this around here. At least I did not find anything. So I would be interested to know if there are people around who actually applied this technic and if their experience confirms what is written about it.

    I definetly found it interesting, yet I know too little to be able to make a judgement.

    So I would really appreciate input.
    Let's play cars.....:bump2: [URL="http://www.cardomain.com/ride/2909181"]Visit my ride[/URL] [SIGPIC][/SIGPIC]

  2. #2
    Buy my stuff!!!!!!!!!!! :O) Turbo Mopar Vendor turbovanman²'s Avatar
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    Re: Somender Singh Grooves

    Thanks! You are the living thread index :-)
    Let's play cars.....:bump2: [URL="http://www.cardomain.com/ride/2909181"]Visit my ride[/URL] [SIGPIC][/SIGPIC]

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    Re: Somender Singh Grooves

    Quote Originally Posted by MopàrBCN View Post
    Thanks! You are the living thread index :-)
    Hahahaha, thanks.
    1989 FWD Turbo Caravan-2.5 TIII, GT35R, auto, a/c, cruise, pwr windows/locks, fully loaded with interior and ran with full exhaust. RETIRED FOR A FEW YEARS! 12.57@104 :O)
    1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
    2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
    2004 GSW TDI, 5 speed, fully loaded, modified.

    Aurora ignition wires for sale. Link to info

    Super60 roller cams or custom/billet cams. Link to info

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    Re: Somender Singh Grooves



    Simon, I am still on the first thread and worked my way up to page 8 now, here's a quicky: Did you finally do it???
    Let's play cars.....:bump2: [URL="http://www.cardomain.com/ride/2909181"]Visit my ride[/URL] [SIGPIC][/SIGPIC]

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    Re: Somender Singh Grooves

    Quote Originally Posted by MopàrBCN View Post


    Simon, I am still on the first thread and worked my way up to page 8 now, here's a quicky: Did you finally do it???
    No, but I might try it with my wife's R/T.
    1989 FWD Turbo Caravan-2.5 TIII, GT35R, auto, a/c, cruise, pwr windows/locks, fully loaded with interior and ran with full exhaust. RETIRED FOR A FEW YEARS! 12.57@104 :O)
    1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
    2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
    2004 GSW TDI, 5 speed, fully loaded, modified.

    Aurora ignition wires for sale. Link to info

    Super60 roller cams or custom/billet cams. Link to info

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    Re: Somender Singh Grooves

    I think I will give it a go. I am too curious and now is a good chance.
    I have at least one more week where I can do nothing but wait for gaskets to arrive and I have a shop right next door.

    BTW: Off Topic. There was a mentioning of those "common" between Valve cracks. I actually have those (one in each chamber, tiny but visible). Do you know where they come from and what problem they might cause? The statements I got so far are, that I shouldn't need to worry about them, but to be honest I do. In fact those cracks are the reason that I am willing to test new things thinking I may need to replace the head soon.....
    Let's play cars.....:bump2: [URL="http://www.cardomain.com/ride/2909181"]Visit my ride[/URL] [SIGPIC][/SIGPIC]

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    Re: Somender Singh Grooves

    if you do this, can you please do a back to back test. put head without grooves on. go to dyno and record ALL results and conditions. then have head grooved and put back on. repeat test.

    im a little skeptical (as with anything) till i see proper testing done and as of the last time i looked, there was no back to back test.

    Brian

    Quote Originally Posted by turbovanman
    This one is easy, I have myself to blame, I rush things, don't pay attention to gauges when I should, change to much stuff at once then expect miracles, the list is endless.

  9. #9
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    Re: Somender Singh Grooves

    Hi, in fact, during reading the other thread I started thinking about it, but won't promise it here and now.

    There are reason why I might not be able to do it:

    1. I am not having proper fascilities to swap heads to start with. Right now the car is in a friends shop, and it was scheduled to be a week there to swap a turbo and now we are entering the second month due to the time it takes getting parts shipped over from the US to Spain and also that a lot of things we didn't calculate to need turned out to be needed.

    -> So to do this I would rely on this friends help....so I have to discuss this first with him.

    2. Dynos are very few around in Spain. I am lucky in a sense that I have access to one of a professional race engine shop. I have a top deal with them to tune my cal. I am even sure there would make me a top deal for this extra (if anything) but yet, I have to ask before hand.

    So, that said, I am willing but have to clear things up beforehand. If I commit myself, I'd like to do it right. I then would take @TonyHannahs way of testing, which seemed a good way of making a point (or not).
    Let's play cars.....:bump2: [URL="http://www.cardomain.com/ride/2909181"]Visit my ride[/URL] [SIGPIC][/SIGPIC]

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    Re: Somender Singh Grooves

    The cracks are normal between the valves, nothing to worry about.
    1989 FWD Turbo Caravan-2.5 TIII, GT35R, auto, a/c, cruise, pwr windows/locks, fully loaded with interior and ran with full exhaust. RETIRED FOR A FEW YEARS! 12.57@104 :O)
    1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
    2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
    2004 GSW TDI, 5 speed, fully loaded, modified.

    Aurora ignition wires for sale. Link to info

    Super60 roller cams or custom/billet cams. Link to info

  11. #11
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    Re: Somender Singh Grooves

    This is good news!! THANKS!!
    Let's play cars.....:bump2: [URL="http://www.cardomain.com/ride/2909181"]Visit my ride[/URL] [SIGPIC][/SIGPIC]

  12. #12
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    Re: Somender Singh Grooves

    PLEASE DO THE TESTING IF POSSIBLE! Then everyone will shut up about whether it works or not!

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    Re: Somender Singh Grooves

    I would but I don't have the time, money or energy to do it, although a TIII would be easier.
    1989 FWD Turbo Caravan-2.5 TIII, GT35R, auto, a/c, cruise, pwr windows/locks, fully loaded with interior and ran with full exhaust. RETIRED FOR A FEW YEARS! 12.57@104 :O)
    1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
    2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
    2004 GSW TDI, 5 speed, fully loaded, modified.

    Aurora ignition wires for sale. Link to info

    Super60 roller cams or custom/billet cams. Link to info

  14. #14

    Re: Somender Singh Grooves

    I've done it to mine. Its not so much that it makes more power, its supposed to reduce/eliminate detonation so you can run more timing, more timing is what makes power. I can leave the car in 5th gear and still climb a fairly steep hill at 35mph.

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    Re: Somender Singh Grooves

    BTW: I haven't done it at the end. Problem was that I was running out of time during the build up. Should I have the head down again I will try it though..
    Let's play cars.....:bump2: [URL="http://www.cardomain.com/ride/2909181"]Visit my ride[/URL] [SIGPIC][/SIGPIC]

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    Re: Somender Singh Grooves

    Back to back testing has been done. Just not on our cars. Singh's site has the link. A very in-depth doc was created. I run them.

  17. #17
    Buy my stuff!!!!!!!!!!! :O) Turbo Mopar Vendor turbovanman²'s Avatar
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    Re: Somender Singh Grooves

    I did it on my head, then Mike said its not needed so we will see what happens. I was running some good timing with no knock so maybe with the grooves, I can add a few more degree's and see what happens. I was actually quite suprised how it didn't want to knock, and I found out this time out my head has been decked over .080", which is over a 1/4 inch and worth a point in compression. I was sure these pistons were lower than I wanted and the milled head brought it back up, I had 150 across the board.
    1989 FWD Turbo Caravan-2.5 TIII, GT35R, auto, a/c, cruise, pwr windows/locks, fully loaded with interior and ran with full exhaust. RETIRED FOR A FEW YEARS! 12.57@104 :O)
    1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
    2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
    2004 GSW TDI, 5 speed, fully loaded, modified.

    Aurora ignition wires for sale. Link to info

    Super60 roller cams or custom/billet cams. Link to info

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