1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Can you get the bridge port pulse with a large street port?

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Old Feb 18, 2007 | 08:36 PM
  #1  
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Josh
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From: New Zealand
Can you get the bridge port pulse with a large street port?

Its a series 2 12A
Because i love the pulse at idle but a bridgy will use to much gas. so if i get a big street port can i still have the cool pulse to pull the babes or do i have to bridge it?
I'm pulling my engine out in the next week an i still haven't decided. crazy i know.
I'm planning on cleaning up the engine bay while its getting rebuilt.
I will be putting a new header and rebulilt carb on it when it goes back in.

cool aye guys. i will put pics up in a couple of weeks
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Old Feb 18, 2007 | 08:47 PM
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I think if you go a little heavy on the porting it will work. Overlap is the key from what i remember. gonna find out, give me a sec
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Old Feb 18, 2007 | 08:53 PM
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g'day mate
nice to see another kiwi on the forum




this may retain that pulse lol
Attached Thumbnails Can you get the bridge port pulse with a large street port?-3.jpg   Can you get the bridge port pulse with a large street port?-untitled.jpg   Can you get the bridge port pulse with a large street port?-exhaust2.jpg  
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Old Feb 18, 2007 | 09:34 PM
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Josh
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From: New Zealand
oh man thats sexy. what would you call that? big streetport? extend port? stage 2,3 or somethin?
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Old Feb 18, 2007 | 09:43 PM
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kiwi from downunder..
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judge ito's porting
hes a member on the nopistons forum
thats the size im going on my 12a instead of a half brigeport will be supported by a 48ida
ill be doin my rebuild in 2 monthsafter i get back from nz for my short holiday 2 more weeks to go yipee
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Old Feb 19, 2007 | 07:27 AM
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Yes Ito ports is the way to go! Sounds like a bridge port but its not! Just remember to use the solid corner seals if using this style port!
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Old Feb 19, 2007 | 12:52 PM
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From: chatsworth,Ca.
large idle jets with a weber carb,holley or even a nikki will get you the pulse your looking for on a stock port motor... a streetport as big as the one shown above will not be a fun daily driver, especially with a 12A.. the powerband will be high while bottom end suffers.. bigger isnt always better for a street car
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Old Feb 19, 2007 | 12:59 PM
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Originally Posted by 680RWHP12A
large idle jets with a weber carb,holley or even a nikki will get you the pulse your looking for on a stock port motor... a streetport as big as the one shown above will not be a fun daily driver, especially with a 12A.. the powerband will be high while bottom end suffers.. bigger isnt always better for a street car
Actually lowend power isnt bad at all.
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Old Mar 20, 2007 | 06:17 PM
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What kind of power do those push out??
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Old Mar 20, 2007 | 07:17 PM
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Originally Posted by 680RWHP12A
large idle jets with a weber carb,holley or even a nikki will get you the pulse your looking for on a stock port motor
interesting, that explains why my car has that sound at idle w/ the OER carb
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Old Mar 20, 2007 | 10:08 PM
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There is a member on here from Fort Wayne (SS124A) that has a 12A with a massive street port that makes 225 horsepower to the wheels. He had it in an Rx3, but last I heard was trying to sell the Rx3. He was keeping the 12A though. I've never seen dyno sheets to prove it, but the guy definitely knows what he is talking about, and a lot of people swear by him. It definitely sounds like a bridgeport.
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Old Apr 5, 2007 | 11:38 PM
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Josh
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From: New Zealand
well i went for the bridge an i'm sticking it back in tommorow. yay
i just got to sort out an exhaust now. it's not looking cheap
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Old Apr 5, 2007 | 11:49 PM
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From: racine wisconsin
hehe....its gonna be worth it though right
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Old Apr 6, 2007 | 12:03 AM
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From: springfield,oregon
i hope ur putin a 48ida on that
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Old Apr 6, 2007 | 03:38 AM
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You'll need to make a recording so we can all hear it once she's running!

Good timing too, because I am also wrestling with this decision right now. I'll be interested to hear your results and opinions. Good luck with the rest of the assembly.
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Old Apr 6, 2007 | 08:16 AM
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Using a very light flywheel & clutch will make the idle pulse much stronger, you can still drive a street port on the street without the headaches of driving a bridge port on the street.
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