12.5HP!
Post by sodbusterlaw on May 12, 2005, 8:24pm

Hi,all.I have a chance to get a 12.5hp twin,ohv(i think don't remember).Would this be good for racing,or just making one for the home track?Seem's kind'a small for the B/P class.Just wondering. Thanks. Jeff dunbar.#724 "USLMRA"
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Re: 12.5HP!
Post by George Herrin on May 12, 2005, 10:54pm

Sod the only 12 I know of thats a twin is an apposed twin and its a flathead engine not an OHV. This is not a desirable engine for BP. The preferred engine's in BP right now are the 18 and 20 hp Vangaurds, the 20 hp Tecumseh, and the Kohler's and kawasaki. though the last two are not used by many.
George
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Re: 12.5HP!
Post by sodbusterlaw on May 13, 2005, 3:43pm

Thanks for the info,George.I'll just make a project mower with it.Thanks again.Jeff Dunbar.#724"uslmra"
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Re: 12.5HP!
Post by George Herrin on May 13, 2005, 3:54pm

You are quite welcome, and good luck...
George
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Re: 12.5HP!
Post by crafty on Aug 20, 2005, 10:42pm

Good Evening.
So's ya know, Yep Briggs did make a 12.5 V twin O.H.V.
Don't have one myself but my uncle, a lawnmower repairman does. Fellow racer by the name of Justin Gordon did have it but traded it for something to him. Remember it cause I thought it was odd. Wanted to buy it from him but he priced it too high(My own uncle mind ya). Anyway, I really like the site. Bout time someone did this. Thanx!
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Re: 12.5HP!
Post by George Herrin on Aug 21, 2005, 1:22pm

I never seen a ohv 12 twin, but that don't mean it aint so. I have seen it in an apposed twin engine though.
George[/b]

Alchohol carb question
Posted by marsupial72 on Oct 13, 2005, 1:32pm  

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I am building a briggs 20 horse intekv-twin, modifications include portwork, cam from precision cam , billet flywheel,milling the heads,and a alchohol carb . my question is will a 363 tillotson carb work, and im building an intake is there a suggested length on intake runners or design?  
 

Re: alchohol carb question
Posted by George Herrin on Oct 13, 2005, 10:15pm

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Go to http://www.askec.net jiopn the forum and go to the lawnmower section and ask Jon he is the tilly alcohol expert. I do believe the 363 will not be enough though. I ran a 360A series on my FX 15hp and it needed more. But again Jon is the expert and he can help in that field best.
George