Spanish new-car sales plunge 30.8 percent in June MADRID (Thomson Financial) -- Sales of new cars plunged 30.8 percent in Spain in June compared with the same month last year after suffering an annual fall of 24.3 percent in May, the Spanish automobile manufacturers' association reported Tuesday. Sales came to 114,958 units last month. New-car sales were down 17.6 percent at 702,365 in the first half of the year compared with the same ...
Continental eyes electrical autos as " diesel car demand declines " ???? FRANKFURT (Thomson Financial) -- Continental plans to replace what it sees as an increasingly sluggish demand for diesel fuel cars with supplies to the future trend of electrical cars, board member Karl-Thomas Neumann told Handelsblatt. "Regarding diesel fuel, I'm more skeptical by now. There's not much happening in the U.S.," he said. German carmakers expect the U.S. car market to ...
KEITH CRAIN The only thing permanent is change For as long as most of us can remember, the U.S. automobile business has had cycles. Whenever there was a down cycle, you knew you had to hang in there, and before long, things would come back to normal. And then you would see the cycle head upward again. It's not going to be that simple this timeKeith Crain is publisher and editorial director of Automotive News. ...
The writing on the wall is getting visible ? ! Or better understood !
Grooved Forever !!!
God help those ............ who ............ ? Realize what is comming !
I have two more sets of SCB heads in my shop for grooves. I'll get some "before pictures" and post them soon. Both sets are made by Edelbrock, one set are performer RPM's the other set Victor Jr’s.
If you or someone you know has decided to test the grooves, I'd like to here your story.
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Re:more grooves
Date: 2005/12/27 20:41
By: mpgmike
Status:
Karma: 4
Thanks for posting the pics. I noticed on the race head that there is a sandy color arc about where the groove would discharge. Based on this, I am assuming that this is a higher temperature area. Overall, the pistons and combustion chamber are much cleaner than would be expected. As for the sandy arc, assuming that there is no damage to the piston rings, wouldn't it make sense to create several of these grooves to disipate this intense heat over the surface of the entire piston and not just concentrate it in that small area?
I have a head with 5 grooves that I sent to Philly and should be installed sometime in March. I have one that was sent to Florida with 1 groove that should be installed any day now. I have 2 more that will be getting 3 grooves that should be shipped sometime in February. This hopefully will give me the opportunity to see if there is any significant improvement by adding additional grooves. Also, these next 2 heads will get shaved for increased compression on turbo engines.
Mike
Post edited by: mpgmike, at: 2005/12/27 20:43
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Re:more grooves
Date: 2005/12/27 21:54
By: automotive breath
Status:
Karma: 3
mpgmike wrote: Thanks for posting the pics. I noticed on the race head that there is a sandy color arc about where the groove would discharge. Based on this, I am assuming that this is a higher temperature area. Overall, the pistons and combustion chamber are much cleaner than would be expected. As for the sandy arc, assuming that there is no damage to the piston rings, wouldn't it make sense to create several of these grooves to dissipate this intense heat over the surface of the entire piston and not just concentrate it in that small area?
Mike, I have the heads in my shop and I am slowly cleaning them while I observe the carbon patterns. The deposits are not like any I have seen before. As you noticed, the area you question was running hotter than the surrounding areas. This could be because of the groove discharge, it could be related to the location of the peak between the two valves and the exposure to combustion temperatures unrelated to the groove. I will study this area when I get a used set of heads with out grooves.
This engine was running a little rich, with a tight squish clearance. Yet the burn was near complete with no areas of wash. Notice the unique blue tint, Somender has told me to look for this, very interesting. The arc next to the bore is dry and sticky.
I will be trying heads with multiple grooves soon, keep in touch.
Cheers, AB
Post edited by: somender, at: 2005/12/28 20:44
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Re:more grooves
Date: 2008/02/01 22:39
By: djcidx
Status:
Karma: 0
Where in Philadelphia, PA can I get grooving done? I really want to know. Thank you
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Re:more grooves
Date: 2008/02/03 08:00
By: herning
Status:
Karma: 0
Hi djcidx,
mpgmike is NW of Harrisburg PA. I have grooved my own heads and did some testing for Singh. I'm just across the river from Philly, in South Jersey. What kinds of heads are you looking to groove? Are you looking to just groove or shave them port, etc...
Garrett
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Re:more grooves
Date: 2008/02/04 01:33
By: djcidx
Status:
Karma: 0
I have a 1991 Volvo 740 - Inline 4 cylinder - 8 Valves - Non-Turbo - 110 hp Stock
I would like to get the grooves for the cylinder heads and the other things I read about on www.powrehaus.com under 8-Valve Heads. Also dependent upon how much it'll cost. My primary goal is obviously better fuel efficiency but my secondary (and a close second I might add) is better performance because I don't like to have to kick down my accelerator to get moving quicker on the highway or for everyday driving. Where in South Jersey can I go to get it done? Thank you
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Re:more grooves
Date: 2008/02/08 02:57
By: herning
Status:
Karma: 0
MPGmike is the owner of Powrehaus. He's probably the closest person to Philly offering these kinds of modifications. I do not know of anyone in South Jersey doing this. If you are on a budget, you can do the grooves yourself, as they are not hard as long as its an alum head. Cast iron are a bit more labor intensive, but still doable. Any of the heads i've messed with, I've done myself, both alum and cast iron.
Garrett
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Re:more grooves
Date: 2008/08/03 15:25
By: cootertwo
Status:
Karma: 0
I put 6 grooves in each head of my 1200 cc Harley engine with approx 12 to 1 compression ratio. No sign of "ping" and runs great. No, I'm not going to tear it down to take pictures, I'm going to ride it! "Grooves rule" !!!!! Thanks Mr Singh
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