Thread: Math Check
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Old 28-11-2004, 03:02 PM
chucktoo chucktoo is offline
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Join Date: Oct 2004
Location: Boston Mass USA
Posts: 13
Default Math Check

I am trying to size the jets for my 2D systems.

I have a 2.5l Subaru [ ultimately going to 2.8l ] with 4 850cc/mim injectors . I will not come close to maxing the injectors till many more mods are done but I assume yuo should size the Aqua-Mist for the injector max ?

Do you use 4 x 850 c for 3200 cc / min or 2 times since fuel is not going in durring exhaust stroke ?

Fro 4 times at 20% water/methanol that is 640 cc/min which sounds like a lot to me. At 2 times tha is 320 cc/mim or a 1mm jet that feels right ?

In the jet table they list 5 bar and race pump - I assume the race pump pressure is ~130 psi ? This is from [285/215] squared times 5 bar times 14.7 psi ?

Thanks Charlie
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