[VAC] Re: Vintage Puller

[Don Horn <donhorn@xxxxxxxxxx>]

Title: Re: [VAC] Vintage Puller

You might find that carbureted vs. fuel injected makes more of a difference than the exhaust.  I used to have a carbureted 4 cylinder Mazda pickup, and it gave me a lot less engine braking on the same hills around town than my Rodeo does, which is heavier and has a 6-cylinder with injection.  I think the freewheeling of the engine with a carb sucks air through the throat, and tends to keep the throttle open.  The F.I. computer seems to shut down the intake a lot more effectively when you take your foot off the gas.   

On the other hand, my experience may have been due to maladjustment of the carburetor, or any number of other variables.  I don’t know whether the difference would be that significant in all cases, but it was definitely noticeable to me.  

I’m assuming your engine is carbureted because of its age, although I’ve heard of older engines being converted to injection.  

Don