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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 time Keith 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 !
 
sing !!!
ARAI Dyno Test PDF Print E-mail

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ARAI Engine Development Lab performed Dyno testing on a 149cc Briggs & Stratton gasoline engine as part of our research efforts.

The basic table is reproduced here. The actual report can be sent if requested but it is making the page look funny. Here is the data itself. This was a Single Cylinder, Four Stroke engine with 65mm bore and 45mm stroke Model 93412 Type 1015E 1. The test was performed on a Benz(EC-70) Dynamometer on Jan 11, 2002 with a Champion RC14YC spark plug and GTX 20W40 oil.

 Engine
Speed
(rpm)
 Torque
(obs)
(Nm)
 Power
(obs)
(kW)
 Air Inlet
Temp.
(degC)
 Sp. Plug
Temp.
(degC)
 Oil
Temp.
(degC)
 Exhaust
Temp.
(degC)
 BSFC

(g/kWh)
 Original Cylinder Head
 2800 6.30 1.85 24.3 271 121.7 345 445.45
 2400 5.75 1.45 24 279 135.9 356 489.42
 2000 5.75 1.20 24.5 259 132.8 307 683.28
 Semi-Modified Cylinder Head   (one groove)
 2800 6.25 1.83 29 277 116.7 370 442.94
 2400 5.65 1.42 29.7 288 140.7 337 496.13
 2000 5.15 1.08 30.1 282 149.4 310 533.17
 Modified Cylinder Head  (three grooves)
 3060 5.45 1.75 24.9 262 125.8 317 400.27
 2800 6.00 1.76 24.5 265 123 307 398.88
 2400 6.25 1.57 24.3 267 123.5 299 413.69
 2000 6.10 1.28 24.5 260 116.5 265 392.73

SEMI-MODIFIED

MODIFIED post-testing


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Comments
Erik
Written by Guest on 2007-01-29 20:37:47
Im confused by this test. the base test actually seems to be better than the single groove here. The second test with three grooves actually is a totally different cylender head with a centrally mounted spark plug and a twisted angle which would contribute to a more efficient burn with lower egt's and BSFC numbers.
School Project
Written by jfedor on 2006-10-15 17:13:02
I'm going to try modifiying Briggs and Stratton heads with my class. Can you offer any advice for not only making the grooves, but also ways to test the engine so that we retrieve accurate results?

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