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Discussion Starter #1
Hey guys i was wondering if anybody here has done a bigger throttle body with a custom intake manifold. I was considering it but woudl like some opions as to how big to go.

anybody knwo what cars have 75mm or 80mm throttle bodies stock (if any do)
'???
 

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re-born
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1,584 Posts
I have seen a throttle body from a Q45 used
Dont ask me how it was done
it was along time ago
But maybe you can search for something about it
 

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DFWSupras
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1,627 Posts
I got an 80mm Q45 TB I'm working onto a custom 2JZ style manifold. TPS already bolts up. Just been busy with other stuff but I really do need to get back on it. our TB next to the Q45 TB looks like a Civic TB :)
 

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25psi Bliss
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1,448 Posts
I've installed the Q45 TB on my custom foward facing intake manifold. The 7M TPS does NOT bolt right up, nor is is compatible with the Infinity flange arrangement. Modification is necessary. You can cut/weld the 7M TPS flange onto the Q45 TB or implement some other innovative methods. Also, the Q45 TPS is a 3wire system, while the 7M is 4wire.
the TB ID is 84mm
OD = 90mm.

My mod'ed Q45 TB to accept 7M TPS:


HTH


SupraBadBoyMKIII said:
thanks for referring me to the 2jz manifold q&a section bu it didnt really answer my question.

Has anybody used a 75mm or bigger on their 2jz style manifolds?
 

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DFWSupras
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1,627 Posts
BlackDevilSupra said:
I've installed the Q45 TB on my custom foward facing intake manifold. The 7M TPS does NOT bolt right up, nor is is compatible with the Infinity flange arrangement. Modification is necessary. You can cut/weld the 7M TPS flange onto the Q45 TB or implement some other innovative methods. Also, the Q45 TPS is a 3wire system, while the 7M is 4wire.
the TB ID is 84mm
OD = 90mm.

HTH
Yeah sorry for making it sound like it bolted up. I did have to modify the TB for the TPS to bolt up but it can be done and it isn't too hard.
 

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greasemonkey
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3,126 Posts
any other pics of the tps adaptor? my friend has a tb off of a cadilac northstar. he said its 80mm, but someone here posted its 84. anyhow, id like to see how that adaptor was made so we can get the tps on his to work. thanks.
william
 
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hey, blackdevilsupra

mind pm'ing me about what the hell that ignition mod is i found on your website? :)
 
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