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RX-7 1st Gen Specific (1979-85) RX-7 1979-85 Discussion including performance modifications and technical support sections

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Old 09-14-2008, 12:09 AM   #1
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ITBs for my half bridge. Yes, this post has pics



This are ITBs from a CBR600RR

Surprise, they came with

- TPS
- MAP
- WAX ROD (for cold idle)
- Manual Adjustment knob, for idle.
- 8 denso 12 holes injectors (I believe they are 190cc each)

This babies are the shitza!












I´ve read they are 40mm, but at the top they are 45, and at the bottom 42....

I dont understand how you measure this stuff
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Old 09-14-2008, 12:10 AM   #2
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Thank you Brian for sending me this stuff!!!!!!!!!!!!!!!!!!!!!!!!!!!
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Old 09-24-2008, 06:46 PM   #3
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dang, whered you get that, are there more?
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Old 09-24-2008, 07:04 PM   #4
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eh, i dont understand how 120hp carbs are gonna flow well enough for you?
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Old 09-24-2008, 07:56 PM   #5
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Quote:
Originally Posted by josh18_2k View Post
eh, i dont understand how 120hp carbs are gonna flow well enough for you?
He's got an FB?
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Old 09-24-2008, 08:13 PM   #6
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Hot
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Old 09-24-2008, 08:42 PM   #7
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those 4 TBs have around as much surface area as two 56s actually.
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Old 09-24-2008, 09:12 PM   #8
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but being how air flows, two 40mm openings with flow worse than one 60mm opening
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Old 09-24-2008, 09:39 PM   #9
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Interested to see how much power is possible with those T.B's
Just for reference EFI hardware 50mm T.B's flow around 650-700cfm max per throat. I've had good experiences with these T.B's on both bridgeport and PP motors
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