DeTomaso Mailing List: January 98, Message #193
     



From: 	"Mike Drew" <mikeldrew@hotmail.com>

Subject: Re: Oil Pans

Date: 	Tue, 6 Jan 1998 17:38:19 +0000



Frank wrote:

>

>Yo Mike,

>I somehow have difficulty believing  Larry lost his mostly-stock engine 

>because he was using Goodyear race slicks!

>

>This is a joke, right?

>

>Frank Z

>

>Mike Drew alleges;

>>Larry Stock had a new motor built after losing the mostly-stock 

>original at

>>Las Vegas '92 to a spun rod bearing.  We think this occurred due to 

>Larry

>>using Goodyear race slicks with a stock oiling system.  

>>Mike

>>

>>





>>>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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