fastman owners
#1
Join Date: Apr 2008
Location: Lee County, North Carolina
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fastman owners
does anyone have a 50mm fastman that isn't installed on the truck?
i need some dimensions and a picture or two (a close up that is better than on the website).
i recently got a used throttle body for 20$ and i want to make a home brew fastman.
the fastman saysFor the 5.2 I recommend my 1.980 bore "50mm" TB.
i measured my throttle plates and they are 1.978 inches (50.25mm). so that means if i bore out the holes to 1.980" that the throttle plates will probably get stuck at closed throttle.
i can make new brass throttle plates on the lathe but i don't know the diameter of the new ones for the 50mm throttle body.
i also don't know the diameter of the center of the bores (where the throttle plates rest at idle) and the top and bottom edges.
hopefully someone has a dial caliper and a fastman that isn't installed on the truck so they can help me out.
i need some dimensions and a picture or two (a close up that is better than on the website).
i recently got a used throttle body for 20$ and i want to make a home brew fastman.
the fastman saysFor the 5.2 I recommend my 1.980 bore "50mm" TB.
i measured my throttle plates and they are 1.978 inches (50.25mm). so that means if i bore out the holes to 1.980" that the throttle plates will probably get stuck at closed throttle.
i can make new brass throttle plates on the lathe but i don't know the diameter of the new ones for the 50mm throttle body.
i also don't know the diameter of the center of the bores (where the throttle plates rest at idle) and the top and bottom edges.
hopefully someone has a dial caliper and a fastman that isn't installed on the truck so they can help me out.
#2
well i dodnt have a fastman,, but i also made one,, all my research it a 50mm bored so i just kept the stock plates,because thinkin if it leaks and we are talkin mm the iac will jaudt not open as far
https://dodgeforum.com/forum/2nd-gen...or-man-tb.html
back when i did mine a had the ****y dial caliper(like 1 frist grade one)
also this just said 50mm
http://dodgeram.org/tech/gas/specs/5_2v8.htm
sorry that i not a fastman owner... but a poorman owner.... hope that i helped
https://dodgeforum.com/forum/2nd-gen...or-man-tb.html
back when i did mine a had the ****y dial caliper(like 1 frist grade one)
also this just said 50mm
http://dodgeram.org/tech/gas/specs/5_2v8.htm
sorry that i not a fastman owner... but a poorman owner.... hope that i helped
#3
Join Date: Apr 2008
Location: Lee County, North Carolina
Posts: 7,055
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so yours is 50mm all the way through with no taper above and below the throttle plates?
after i get off the milling machine with mine i will post a few pictures so you can compare mine to yours.
and since my plates are 1.978 instead of 1.980 then i'll bore it out to 1.978 so i won't have a .002 gap between the plates and the walls.
after i get off the milling machine with mine i will post a few pictures so you can compare mine to yours.
and since my plates are 1.978 instead of 1.980 then i'll bore it out to 1.978 so i won't have a .002 gap between the plates and the walls.
#4
#7
Join Date: Apr 2008
Location: Lee County, North Carolina
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you can see in the pictures that the plates don't sit flat across the hole, they are on either side of the high point in the center, thats why i was asking about the bore being 50mm straight through.
i am thinking that i should make the high point in the center 50mm and taper it on either side like it is now. maybe to about 52mm.
i am thinking that i should make the high point in the center 50mm and taper it on either side like it is now. maybe to about 52mm.
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#10
so yours is 50mm all the way through with no taper above and below the throttle plates?
after i get off the milling machine with mine i will post a few pictures so you can compare mine to yours.
and since my plates are 1.978 instead of 1.980 then i'll bore it out to 1.978 so i won't have a .002 gap between the plates and the walls.
after i get off the milling machine with mine i will post a few pictures so you can compare mine to yours.
and since my plates are 1.978 instead of 1.980 then i'll bore it out to 1.978 so i won't have a .002 gap between the plates and the walls.