wkeggenhoff
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Was told by my dealer that the fuel injector does not supply enough fuel for this mod and will cook engine. What do they do to moodify fuel system ? do they ran an extra fuel injector. Something about stock injector already at 85 % of operating capacity, and not good to run it any higher
heath@mpi
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stage 1 supercharger @ 7-8 psi is max for your fuel injectors at your elevation

kinger
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I run a stage 1 at 10-11 psi and ran out of fuel, added a $80 hi flo full pump and have more then enough fuel now, still trying to lean it back out.
My engine is shimmed for 10:1 compression. This is for a apex.
My engine is shimmed for 10:1 compression. This is for a apex.
heath@mpi
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I just noticed this is a Apex sorry. Apex has much larger injectors then the Nytro which i labeled
wkeggenhoff
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APEX HEAD SHIM
DID YOU SHIM THE MOTOR YOURSELF OR DID THE DEALER DO IT. WHAT DO THEY CHARGE FOR THIS SERVICE ? I KNOW ALLEN ULMER SUPPLIES A SUPPLIMENTARY FUEL PUMP i BELIEVE FOR STAGE 2, DONT KNOW IF IT IS USED ON STAGE 1 OR NOT.
DID YOU SHIM THE MOTOR YOURSELF OR DID THE DEALER DO IT. WHAT DO THEY CHARGE FOR THIS SERVICE ? I KNOW ALLEN ULMER SUPPLIES A SUPPLIMENTARY FUEL PUMP i BELIEVE FOR STAGE 2, DONT KNOW IF IT IS USED ON STAGE 1 OR NOT.
DC5
TY 4 Stroke Junkie
With a larger fuel pump, the injectors are maxed at 14lbs. They will run comfortably at 10-11lbs with the larger pump. I wouldn't use the stock pump over 7lbs.

kinger
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Ulmer did my shim...twice just cause he was practicing
JK

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