2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Streetport or Bridge with my setup?

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Old Feb 18, 2003 | 09:28 PM
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From: sandiego, ca
Streetport or Bridge with my setup?

Ok I will have the stock tranzmission so I dont know if it can handle 10k rpms with a bridgeport. I think 9k is max but i dont know. Another thing is will a big streetport still pass emisiions if I stick a cat and airpump on ?

I have 89GXL s5 engine... what will the redline be for a streetport ? I shift at 8500 stock engine

what about a partial bridge?

What about monster bridge ? whats the reliability with this and miles ??? rpms exc

The porting is free with my rebuild by the way.
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Old Feb 18, 2003 | 09:34 PM
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From: West Covina, CA
all i know is that bridge's dramatically reduce engine life, and your chances of passing smog? **** being slim, its basically none. an idle of at least 1k is needed for a bport to run right, and your car wont pass smog if it idles that high. i dont think the transmission is an issue. also, bridgeports only make power in the higher rpms, hence the high redline.

id generally go with a large streetport...you may be able to pass smog with the cat on...and engine reliability isnt reduced.
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Old Feb 18, 2003 | 09:46 PM
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you can't bridge port a 6-port motor.
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Old Feb 18, 2003 | 09:55 PM
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Originally posted by Turbo Timmy
you can't bridge port a 6-port motor.
why not? im curious
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Old Feb 18, 2003 | 09:56 PM
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From: Evans, Ga
Thats not true...
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Old Feb 18, 2003 | 10:05 PM
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From: Orlando
http://www.mazdatrix.com/faq/port6p.htm
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Old Feb 18, 2003 | 10:16 PM
  #7  
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From: sandiego, ca
forget what they say. You can bridge a 6 port they just recomend weird things. or something.

By the way im going large streetoprt mabey.
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Old Feb 18, 2003 | 10:23 PM
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From: Olympia, WA
Originally posted by Turbo Timmy
you can't bridge port a 6-port motor.
tell judge ito that...
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Old Feb 18, 2003 | 10:27 PM
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From: Lower Burrell, PA
I really wouldnt recommend a BP. Have you ever seen/heard one run? Very loud, very rappy (brap brap brap) and just not all that great for a street driven car IMO. With a large streetport emissions shouldnt be a problem, you can retain a near-stock idle, and still have decent power throughout the RPM range.
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Old Feb 18, 2003 | 10:42 PM
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From: Boulder, CO
you wouldn't want to hit 10k on the stock flywheel, it might shatter. They are supposed to at 10.5k, so 10k is pushing it.
I can see bridgeport being used for a race engine, but I can't see myself driving it on the street.
Just find a video of one running and you'll see what I mean. They're also loud as hell, if that's an issue to you.
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Old Feb 19, 2003 | 12:17 PM
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From: London, Ontario, Canada
Originally posted by Turbo Timmy
you can't bridge port a 6-port motor.
Really? That's odd because I'm doing it right now.
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Old Feb 19, 2003 | 12:32 PM
  #12  
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From: Orlando
Well I should've qualified my remarks by saying you can't go buy a porting template and start grinding.

Anything CAN be done if you throw enough time, energy, or money at it.

Hence we have a turbocharged 86 NA.
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Old Feb 19, 2003 | 07:02 PM
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CaR 13's Avatar
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From: toledo OIHO
how much more work is invalved for pp a 6 port engine
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Old Feb 19, 2003 | 07:11 PM
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From: Mars
Originally posted by Rxmfn7
I really wouldnt recommend a BP. Have you ever seen/heard one run? Very loud, very rappy (brap brap brap) and just not all that great for a street driven car IMO.
Thats one of the fun parts of a bridge?
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