I found my top end...

[Anonymous]

Man, your body must require about 6 hours of sleep to be up now!

Well, I never did get my cam specifications but I did have the head milled a bit so I figured I'm around 8:1 now (this is using stock specs with the except to gasket thickness and combution chamber size). I'm looking into having more shaved off whenever I get around to having the log milled flat as well. Yet, I can't decide on a single carburetor or my duel Webers idea. I need more time on this one.

And as far as performing a wet/dry compression test. The last time I did (dry only) my numbers averaged out to 140 PSI. The highest being about 142 and the lowest about 138 PSI. How do I perform a wet test?



-Chris

 

[Anonymous]

To do a wet test squirt some oil in the chamber through the plug hole and proceed as normal. Usually you don't do a wet test unless you have a really low reading in a particular cylinder. If you get a low reading and then perform a wet test on that cylinder and the PSI comes up that usually means you have worn rings. If the PSI maintains then that points to pitted valves and pitted seats.

 

[Anonymous]

Chaz, don't take this to heart but...does your boss mind you vegging out on this chat forum all day?

Not to mention Ebay! har!

 

[Anonymous]

if ya really dont like th eebay finds...I can stop them YA KNOW...sheesh

 

[Anonymous]

Nah, I was j/k.. you find some cool & interesting stuff... dig that catering van..

 

[Anonymous]

i know you were kidding... "P

catering van is like a cheech and chong mobile...
perfect for josie

 

[mugsy]

Back to the original problem

I was MPH limited too, but that was on my single barrel carb. Found out the linkage was "misaligned". The throttle plate would only open a little over 3/4 way. Adjusted the linkage and the car responded

As for the bog, the typical secondary carb will bog based on two things. 1)The A/F ratio is too lean with the first gulp of air. You fix this with a bigger shot of gas from the secondary accel pump. Find the accel pump for the secondaries and verify that it works. 2) The other cause is too much manifold area is being exposed when the secondaries are open. The engine is "seeing" too much air for the engine load and RPM. Find out how the secondaries are activated and dial it back, if possible.

As for the backfire..... you're on your own...

 

[Anonymous]

I corrected the bogging last night before my engine literally dropped a couple of inches (but that's another story for another post). I had to change out my secondary jets to a little larger size. That seemed to cure my problem.



-Chris

 

[Anonymous]

your engine had so much get up and go it tried to get up and go.....

humor cures all ills