01-29-2010, 11:48 AM
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#1
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Registered User
Join Date: Apr 2008
Location: Southern New jersey
Posts: 1,054
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Here's a picture of what literally "blew" my racing budget last season.
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01-29-2010, 12:04 PM
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#2
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Registered User
Join Date: Jul 2007
Location: Coastal Oak Forest
Posts: 1,069
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You know you can use a steel crank now?
That looks like the typical one time past 8000 RPM break. I did one that looked just like that with a 540 Lola and their stupid design of having the flywheel sticking below the frame rail. It hit the ground in the dip on the old Road Atlanta track and just really didn't like it.
I never let one break after over-revving, but saw quite a few who didn't believe it was really true. You turn one of the cast iron cranks in excess of 8000 rpm and it's GOING to break. Maybe next lap, maybe next weekend, but you can bank on it.
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Sold - Black on Sand Beige 2006 S - 48K miles
18x8.5 and 10 OZ Alleggerita HLT Anthracite wheels and anthracite Cayman side grilles - lovingly adjusted Schnell Short Shift
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01-29-2010, 12:14 PM
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#3
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Registered User
Join Date: Apr 2008
Location: Southern New jersey
Posts: 1,054
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Well, I bought the engine used, so I don't know it's history. I have a rev limiter, and it failed at 6900, just before pulling 2nd gear. I did spin the previous day in T10 at Summit Point, and didn't get the clutch in soon enough, possibly turning the engine backwards, with the wheels chattering. I don't know if that could have precipitated the failure. The engine did have 20+ hours on it, and I'm sorry to say I have missed a few shifts and winged it during that time.
Well, new season, new ( to me ) engine, I just have to get everything put back together again!
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01-29-2010, 12:22 PM
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#4
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Registered User
Join Date: Jul 2007
Location: Coastal Oak Forest
Posts: 1,069
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What chassis do you have?
I never got the chance to run Summit Point. IF I had decided to go back running the CF instead of buying a Boxster, my main plan was to travel outside the SEDIV and run other well known tracks. I guess the getting old got the best of me!
__________________
Sold - Black on Sand Beige 2006 S - 48K miles
18x8.5 and 10 OZ Alleggerita HLT Anthracite wheels and anthracite Cayman side grilles - lovingly adjusted Schnell Short Shift
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01-29-2010, 04:02 PM
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#5
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Registered User
Join Date: Apr 2008
Location: Southern New jersey
Posts: 1,054
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I have a Van Dieman RF78. Summit is a very technical track, but their paddock space stinks! I had similar plans, Road Atlanta, Elkhart, rent a car for Laguna... Nice idea, but very demanding in reality! I hate long tow's, and get tired of the endless hours prepping the car. That's why I decided to slow down a bit, and take some racing money for a Boxster. The Boxster I can enjoy most of the year, racing only a handfull of weekends. But those weekends are intense!
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01-30-2010, 06:33 AM
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#6
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Registered User
Join Date: Jul 2007
Location: Coastal Oak Forest
Posts: 1,069
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RF79 and Crossle 30F were very influential in my design when I built my "new" 70 WDF2 Winklemann. Do you know Steve Robertson out of Atlanta? He probably knows as much about your generation VD as anyone alive and is pretty quick with it. He's done a tremendous amount of suspension/shock/spring work.
I have his email if you want it, we go wayyyyyy back.
__________________
Sold - Black on Sand Beige 2006 S - 48K miles
18x8.5 and 10 OZ Alleggerita HLT Anthracite wheels and anthracite Cayman side grilles - lovingly adjusted Schnell Short Shift
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01-30-2010, 07:34 AM
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#7
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Registered User
Join Date: Apr 2008
Location: Southern New jersey
Posts: 1,054
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No, I don't know Steve, but I wouldn't mind contacting him for some tips. I have been experimenting with spring rates, ride height, and rake.
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