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Thread: Crescent 500 specs

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    modifiedoutboard OUTBOARDER's Avatar
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    Default Crescent 500 specs

    Where can I get Crescent 500 cs specs?????
    ANTHONY McCULLOCH
    modifiedoutboard@hotmail.com

    Some things never change!

    They Want it cheap..............

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    Default cresent

    Quote Originally Posted by OUTBOARDER View Post
    Where can I get Crescent 500 cs specs?????
    One thing I can tell you about that motor is that it was made by the same folks as Volvo penta. The Cresent was a three cylinder that had about 30 cubic inches of displacement. No actual horsepower was given that I know of. It is quite rare and was only produced for a short time in the early to mid sixties. Fact is, it was so fast that the APBA had to give it its own class. It could do around 90 or more on a "C" hydro with no problem. It was too powerful for the mercs to have a chance. When Champion made the Hotrod, mercury simply got APBA to acknowledge a mod kit as legal for stock class on their old 20H so it could survive and win again in "B" class. An engine like the cresent was too much and it would take a looper to have a chance with this stock motor. Mercs didn't have a chance in "C"stock against this, so APBA started the "C" superstock class for the cresent. I don't know where a spec sheet or pic of one could be found though.

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    modifiedoutboard OUTBOARDER's Avatar
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    Default 1978 apba inspection sheet

    Quote Originally Posted by champ20B View Post
    One thing I can tell you about that motor is that it was made by the same folks as Volvo penta. The Cresent was a three cylinder that had about 30 cubic inches of displacement. No actual horsepower was given that I know of. It is quite rare and was only produced for a short time in the early to mid sixties. Fact is, it was so fast that the APBA had to give it its own class. It could do around 90 or more on a "C" hydro with no problem. It was too powerful for the mercs to have a chance. When Champion made the Hotrod, mercury simply got APBA to acknowledge a mod kit as legal for stock class on their old 20H so it could survive and win again in "B" class. An engine like the cresent was too much and it would take a looper to have a chance with this stock motor. Mercs didn't have a chance in "C"stock against this, so APBA started the "C" superstock class for the cresent. I don't know where a spec sheet or pic of one could be found though.
    Found a link to view 1978 APBA INSPECTION SHEET but did not work..........................
    ANTHONY McCULLOCH
    modifiedoutboard@hotmail.com

    Some things never change!

    They Want it cheap..............

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    Team Member zul8tr's Avatar
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    Quote Originally Posted by OUTBOARDER View Post
    Found a link to view 1978 APBA INSPECTION SHEET but did not work..........................
    Check your email I sent the 1978 APBA Crescent specs this morning.
    Let me know if you received them.
    " Three may keep a secret if two of them are dead" Ben Franklin

    Location: SW Orlando, Fl

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    Team Member seacow's Avatar
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    Name:  Saab-95-RR-600x400.jpg
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Size:  71.8 KBName:  crescent saab.jpg
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Size:  33.8 KBName:  crescent.JPG
Views: 1912
Size:  298.8 KBI seem to recall that the motor was a Saab model 93, 93 95 or 96 car engine with reduced displacement mounted upon a racing lower unit. From the late 50s through the early eighties Saab car engines were 3 cyl two stroke engines and yes you had to add oil when you filled up with gas. Saab got the design from DKW. Attached are photos of the Saab car, the Saab car engine and the Crescent racing motor.
    Likes JohnsonM50 liked this post

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    Team Member LittleCharger's Avatar
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    very Cool!

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    Remember getting a ride in a SAAB like that when I was in college; slowest car I ever saw!

    Jeff
    "We live at the bottom of an ocean of air." - General Marvage Slatington

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    Team Member A/B Speedliner's Avatar
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    My brother Alan still has a Cressent from way back when we had full fields of boats. He and I also took a DKW engine and built a garden tractor around it. I was the first to drive it or should I say aim it. The first run I did a 180 barrel roll off the rear wall of my house. That thing had so much torque just easing the clutch would lift the front wheels off the ground.
    David
    Old Race Boats Still Flip You Out

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    BRF Team Europe Member Per's Avatar
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    Quote Originally Posted by seacow View Post
    I seem to recall that the motor was a Saab model 93, 93 95 or 96 car engine with reduced displacement mounted upon a racing lower unit. From the late 50s through the early eighties Saab car engines were 3 cyl two stroke engines and yes you had to add oil when you filled up with gas. Saab got the design from DKW. Attached are photos of the Saab car, the Saab car engine and the Crescent racing motor.
    Nope, AFAIK there are no relationship between the SAAB and Crescent engine. I will speak to a couple of knowledgeable people and see what I come up with...

  10. #10
    Team Member seacow's Avatar
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    Quote Originally Posted by Fastjeff57 View Post
    Remember getting a ride in a SAAB like that when I was in college; slowest car I ever saw!

    Jeff
    Agreed. Its top speed was rated at 75 mph. But back then the original VW bug had a rated top speed of 68 mph.

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