DeTomaso Mailing List: January 98, Message #201
     



From: 	"Frank Zambini" <f_zambini@hotmail.com>

Subject: Re: Oil Pans

Date: 	Tue, 6 Jan 1998 18:38:44 +0000



Ahhhhh. I be enlightened! Didn't realize he was running a stock oil pan!

Frank Z



>>Frank,

>

>Nope, absolutely true, I saw it myself.  (By the way, JACK was the one 

>who wrote the portion of the story you're referring to.)  Larry was 

>running an essentially stock engine (except for Edelbrock and Holley 

>carb) on his '72L fitted with Carrera shocks/springs and a GTS swaybar, 

>and Goodyear slicks on 8 and 10-inch wheels.  He was running right up 

>there with the big-bucks guys and their 500-horsepower engines, 17-inch 

>wheels and sticky street tires.  Slicks make all the difference in the 

>world.  I know, I got a ride for one session and was amazed that he 

>could run with the high-zoot boys until they hammered it on the 

straight 

>and pulled away.  He would catch them under braking at the end of the 

>straight, then pass them entering the next corner.

>

>He was pulling 1.2 lateral (cornering) G's in the long, 180-degree 

>third-gear left hand hairpin (documented with on-board g-analyst, I 

>believe.)  What he didn't realize was, due to his stock, un-baffled oil 

>pan, all the oil was sloshing up against the side of the pan, and his 

>oil pump was starving, his oil pressure would drop to zero by the end 

of 

>the corner.  I think he noticed once on the subsequent straight it 

>climbing up through 20-30 psi, but thought it was a momentary 

deviation.

>

>After almost a full day of this nonsense, finally the engine grenaded 

>near the end of this turn.

>

>Bottom line:  Slicks equals big speed, much more than you'd imagine.  

>And if you're pulling big lateral G's, your stock oil pan (ANY stock 

>Ford pan, including Boss pans) is completely inadaquate.

>

>Mike

>

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