Rolex 24 @ Daytona
03-07-2008, 08:54 PM
#1
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Rolex 24 @ Daytona
Did anyone notice that an 8 won the race? YEA
Did anyone notice the main sponsor of the car? - Castrol Syntec
http://www.speedsourceinc.com/
Just thought I would add my own little stir to the synthetic oil pot.
The irony is killing me. What is Mazda thinking I thought they said synthetic oil is bad.
ROFL
Did anyone notice the main sponsor of the car? - Castrol Syntec
http://www.speedsourceinc.com/
Just thought I would add my own little stir to the synthetic oil pot.
The irony is killing me. What is Mazda thinking I thought they said synthetic oil is bad.
ROFL
03-07-2008, 11:05 PM
#6
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that body is made entirely from carbon fiber and built for speedsource by downing atlanta http://downingatlanta.com/downingatl...osites_new.htm ive been in there where they build them
03-08-2008, 08:15 AM
#9
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Back in the 80's we went through the motor after the Sunbank 24. So did Roger Mandeville's team. Typically we would limit revs to 8500 the first 23 hours then Amos would push it to 9200 for the last hour.
We (Dennis Shaw anyway) also tore down the motor after every race mostly to see what everything looked like.
Gears got pretty abused, with spalling on the ring gear, but only at the Sunbank 24. Had the oil checked, no silicates so it wasn't due to sand contamination. Bearings wear OK anyway, we figured the gears were one of the limits. We ran synthetic but there were no "Simon Says" warnings about synthetic - not that we would have cared.
If there was .001 second or reliability to be gained by it, motor teardown is not an option. At the typical IMSA race we had about $40,000 invested and the cost of teardown between races. Dennis was on the "payroll" and could pull the 13B down to a carefully laid out pile of parts in under 5 hours. Inspection was about 8 hours. Re-assembly was about 12 hours.
Also at the end of every season I noticed we always had a pile of housings and rotors next to the box of worn out gears. Variations on porting and chamber mods to the rotors mostly.
We (Dennis Shaw anyway) also tore down the motor after every race mostly to see what everything looked like.
Gears got pretty abused, with spalling on the ring gear, but only at the Sunbank 24. Had the oil checked, no silicates so it wasn't due to sand contamination. Bearings wear OK anyway, we figured the gears were one of the limits. We ran synthetic but there were no "Simon Says" warnings about synthetic - not that we would have cared.
If there was .001 second or reliability to be gained by it, motor teardown is not an option. At the typical IMSA race we had about $40,000 invested and the cost of teardown between races. Dennis was on the "payroll" and could pull the 13B down to a carefully laid out pile of parts in under 5 hours. Inspection was about 8 hours. Re-assembly was about 12 hours.
Also at the end of every season I noticed we always had a pile of housings and rotors next to the box of worn out gears. Variations on porting and chamber mods to the rotors mostly.
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