q45 TB silicone connector

Discuss the RB20, RB25 and RB26 series engines.
cb_240
Posts: 93
Joined: Sat Feb 04, 2006 12:18 pm
Car: 1993 Nissan 240sx SE, RB25DET swap

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wondering what size I need to get to fit over it. I know the 3" won't fit, do i go with 3.5 or 4

thanks guys


minivan_don
Posts: 316
Joined: Fri Apr 23, 2004 7:29 am

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a q45 tb is 90mm, which is 3.5"

kjlindgr
Posts: 214
Joined: Fri Jun 16, 2006 3:39 am

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Can you not work a tape measure?

cb_240
Posts: 93
Joined: Sat Feb 04, 2006 12:18 pm
Car: 1993 Nissan 240sx SE, RB25DET swap

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thanks for the sarcasim, i know the TB is 3" so i figured it was 3.5 i needed just wanting to make sure

you know measure twice cut once

User avatar
300Plus
Posts: 700
Joined: Sat Jul 09, 2005 8:11 pm
Car: 1995 S14 w/ Rb25det Series II

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cb_240 wrote:thanks for the sarcasim, i know the TB is 3" so i figured it was 3.5
....

kjlindgr
Posts: 214
Joined: Fri Jun 16, 2006 3:39 am

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I hope you know that if the Q45 TB is supposed to be a 90mm TB, it won't have a 3.5" coupling. I have an Accufab 90mm TB and it has a 4" outer diameter requiring a 4" coupling. The butterfly is a true 90mm. From what you are telling me, the Q45 isn't a 90mm TB if it uses a 3.5" coupling.


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