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Re: [T3] was: Compression Ratio Recomendations, nowsemi-hemi

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> I have a 1.6 liter engine that I took out to 2017cc. I did this by 
> jugs and a Scat 78.4 crank. I have kept the cam stock and new stock 
> The heads are 54cc. I kept the CR at 7.5-1 because it is stock FI, 
but have 
> used 914 2.0 liter injectors. The stock Type III air distributor 
> seems to work well with the larger injectors. 

You may find that your power is limited by the diameter and length of 
the intake runners.  Even the 914 2.0 had intake runners shorter in 
length and bigger in diameter than the T3.

> Bottom line, the timing is at 2 BTDC with 30 total advance without 
> pre-detination and it runs cool. With California fuel on my Ghia I 
have to do 
> TDC or 2 ATDC with  8.1 to 1 or it rattles all over the place. It 
has 2 Type 
> III carbs on it and is 1.7 liter. 

Are you sure the mixture and whatnot are fine?  Is the problem 
actually at idle, or do you just have to set the idle timing like that 
to make everything happy?

> Could you please give me your thoughts on the 2 liter FI engine 
setup and 
> what I could have done different? Does the FI make any difference 
> normally aspirated engines for squash and such?

Carburetion vs. fuel injection itself doesn't make much of a 
difference on how the combustion chamber would burn the fuel.  It may 
change the atomization, mixture accuracy, etc., but that wouldn't 
suddenly mean that one or the other now doesn't like quench :-).

(P.S. normally aspirated just means no turbo, blower, etc., but I know 
you meant carbureted :-)

Take care,
Shad Laws
LN Engineering

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