Quote:
Originally Posted by ptc
Yea me either! --1/4"?? The EV engineer said at 12psi boost there is actually about 300 lbs of pressure lifting up on a 4150 carb throttle body (5" dia). At 30 psi it can be upwards of 750 lbs!!! thats crazy.
My truck now at idle, opens the blow off valve because it is producing boost that goes no where with the throttle plates closed. I thought it was messed up, but before I fixed it, it was blowing past the carb hat gasket.
Learn something new every minute on these things!
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Wow thanks I'll have to look at mine now. I've been thinking of doing a boost leak test, just to see if everything is good.
Mighty car mods explane it well.
https://www.youtube.com/watch?v=atretf9u-Mc