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To4b80 Turbo questions
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studer automotive View Drop Down
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Joined: 10 Sep 2013
Location: jeromesville,oh
Points: 558 		Post Options Post Options   Thanks (0) Thanks(0)   Quote studer automotive Quote  Post ReplyReply Direct Link To This Post Topic: To4b80 Turbo questions
    Posted: 18 Mar 2024 at 3:07pm
I’m looking for a PN for a replacement to4b80. I came up with a 313099 PN off a borg Warner turbo , which replaced a tob490, which I believe is a replacement turbo for a d21 or 210/220. Im installing it on a d19 D so that’s entirely to big. Anybody have any input on this?
a-c 185-d y/r cab turbo soon
99 f-250 7.3 4x4
86 mustang5.0 owned since 8/93              
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 20534 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 18 Mar 2024 at 9:57pm
It's been 45 years, but I'm pretty sure the D-21 and D-19 used the SAME turbo, which was a Thompson brand which later became a Rajay. I always thought that was interesting, but that D-262 couldn't stand much boost and the bigger size was just what it took to keep boost relatively low.
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studer automotive View Drop Down
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Joined: 10 Sep 2013
Location: jeromesville,oh
Points: 558 		Post Options Post Options   Thanks (0) Thanks(0)   Quote studer automotive Quote  Post ReplyReply Direct Link To This Post Posted: 18 Mar 2024 at 10:59pm
Interesting, I have a ray-junk turbo on my 19 now i’m looking to replace it with a b-w or garret. I found brand new borg Warner turbos for $450-$500. Thanks for the info dr.
a-c 185-d y/r cab turbo soon
99 f-250 7.3 4x4
86 mustang5.0 owned since 8/93              
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