Thread: head upgrade disappointment

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Originally Posted by turbo2256b

There are some ways to figure it. Several have figured it fore me in a couple different ways on the 302 which came out between 11.6 to 12.5 static (truely its just short of 9.0).

Yeah, those several sure nailed it. hahahahahahahaha.
Would you like to share with us how you keep mixture speed up? What motor? What components?

Originally Posted by techinspector1

Yeah, those several sure nailed it. hahahahahahahaha.
Would you like to share with us how you keep mixture speed up? What motor? What components?

The caculations are not all that inacurate as it nailed it on most builds. However most have less dynamic than static.

In a nut shell it has to due with selecting componets that complement each other as well as possible and or modifing them to do so.
Would need a new topic started on it.

EGR is mostly for cruse conditions to enable advances in timing similar to the old days vaccum advance units of 15 to 25*. Dosent effect performance that much. Usally its shut down aroud 75% load or more. Its also come a long way since it was introduced.

Originally Posted by turbo2256b

Usally its shut down aroud 75% load or more.

That's great if you have electronic engine management, but it's pretty hard to do with a carburetor. I'm not trying to argue with anyone about EGR. I just don't plan to use it on any of my builds unless it has to be there to pass emissions.

Originally Posted by techinspector1

That's great if you have electronic engine management, but it's pretty hard to do with a carburetor. I'm not trying to argue with anyone about EGR. I just don't plan to use it on any of my builds unless it has to be there to pass emissions.

Dont plan on any carbed motor builds using EGR myself.