[DeTomaso] Optimal Air Fuel Ratio Question

Daniel C Jones daniel.c.jones2 at gmail.com
Wed Jun 3 20:00:46 EDT 2009


> You mean 0.0946" diameter main jet, right?

Yes.  0.946 * 0.100 = 0.0946

Dan

> Paul
> #9270
>
> Daniel C Jones wrote:
>>> Does anyone have a table or chart handy showing how many Holley jet sizes you should change per 1000ft of elevation change?
>>>
>>> Doug Braun
>>
>> Do a search on Air Density Ratio Charts. At high altitudes (actually at any
>> altitude above 0' msl.), the diameter of the main jets varies proportionally
>> with the fourth root of the air density ratio at a particular altitude
>> in order to
>> maintain a constant mixture ratio at that altitude.  For instance, if Holley
>> used a .100" diameter main jet for a standard (sea level) setting, and your
>> local density ratio is .8, you should use a .946" diameter main jet in order
>> to maintain the correct mixture ratio.
>>
>> Dan Jones
>> _______________________________________________
>>
>> Detomaso Forum Managed by POCA
>>
>> Archive Search Engine Now Available at http://www.realbig.com/detomaso/
>>
>> DeTomaso mailing list
>> DeTomaso at list.realbig.com
>> http://list.realbig.com/mailman/listinfo/detomaso
>>
> _______________________________________________
>
> Detomaso Forum Managed by POCA
>
> Archive Search Engine Now Available at http://www.realbig.com/detomaso/
>
> DeTomaso mailing list
> DeTomaso at list.realbig.com
> http://list.realbig.com/mailman/listinfo/detomaso
>



More information about the DeTomaso mailing list