TB closing under boost
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TB closing under boost
Who has had a problem with the throttle body on their trucks closing under boost on a GM truck?
I am curious how wide spread of a problem it is and on what years and engines it is happening on along with how much boost was being ran on the engines it has happened on.
Thanks
I am curious how wide spread of a problem it is and on what years and engines it is happening on along with how much boost was being ran on the engines it has happened on.
Thanks
#2
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what type of blower do you have? I had this problem with my blower so i had to change to a different tb. I also have heard that that problem can be fixed in the tune too.
Adam
Adam
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I have a 2.3L Whipple going on a L92 this week. I don't expect much boost with the standard included pulley plus 1-7/8 headers and catback but I will likely get a different pulley eventually.
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Ive read somewhere the spring in the stock 87mm tb is a lil weak, but the zr1 uses it so i can verify, i swapped to a ls3 90mm tb when i put my blower on so i have no experience with stock tb under boost... not very informative u know.. lol, just thought id throw it out there for ya...lol
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