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Old 03-29-2013   #8
Dynomite
 
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Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,817
Default Re: Secondary Remove guide?

Quote:
Originally Posted by Funracer View Post
Seems too easy and not many things on the LT5 are easy. I will tackle this
Friday or Saturday and prob be back with more questions.

Thanks
I modified the heads (Install Dorman freeze plugs 555-108) pulling secondaries with engine out of car (Heads removed). Maybe Paul or others have pulled secondaries without removing Heads....which seems can be done just do not drop anything into cylinder through an open valve

I would NOT use wire to hold the secondaries open......but then again......
if you are not sure you want to eliminate the secondaries.....maybe a temporary fix using wire would be your best option.

Using wire to fix the secondaries open is a lot simpler for sure especially if the engine is in the car.

When you pull the plenum (I guess you are already past that stage) do not forget to draw down the coolant level a bit so you do not get coolant in the cylinders. See item #4 LT5 Eliminated Systems

I think you have to modify your chip in the ECM to accomodate the fact you eliminated the vacuum system and secondaries. The custom chip would change the fueling for the secondary injectors for example Marc Haibeck Custom Fueling



Last edited by Dynomite; 03-29-2013 at 10:22 AM.
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