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Would different porting make a large turbo spool quicker?

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Old Feb 16, 2003 | 04:29 PM
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Pressurized's Avatar
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Would different porting make a large turbo spool quicker?

First off, maybe i'm not even asking this right because i'm not too familiar with the different porting techniques. But i am looking into the T51 SPL, which is a large turbo and i want to get as little lag as possible. Would porting the motor a different way reduce lag? Say instead of a streetport i go with a bridge-port or peripheral port? Or am i just thinking about this all wrong?

Also what kind of general pros and cons are there to the different ports?
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Old Feb 16, 2003 | 06:08 PM
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From: houston
the answer to your questoin is yes. a nice secondary bridge will make that turbo sing!!


MWW
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Old Feb 16, 2003 | 06:13 PM
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Hell yeah it'll make it spool SUPER FAST! well for a t03 stock turbo off a turboII with street port it'll spool so fast then choke because the turbo is too small, with a t51R and bridge it should spool great lag is min. The more u port the more the exhaust pressure gets out and since it's ported and stronger it'll push the turbine much!

Peripheral eh? a little too crazy don't you think? it's so bad that u have to drive at 6k for cruising and it's super loud, and about 10k for max hp and max tork is about 5k?. Not alot of people agree with peripheral and turbo because the compress air just flyes right out the exhaust! some drag racers were able to do it but i really don't know, i was about to peripheral port 12A carb'd all motor but the car got stolen and they crashed it, so **** it.

I say street port best for street. Because while at 1/2 throttle it isn't very comfortable because it'll buck like fucc, but it is too me!

and with t51 it'll be alright with street port.

-mike
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Old Feb 16, 2003 | 08:36 PM
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From: houston
Not alot of people agree with peripheral and turbo because the compress air just flyes right out the exhaust! some drag racers were able to do it but i really don't know,


htat is overlap that causes that problem...you have to run LARGE exhaust housings and wheels to eliminate the problem.


MWW
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Old Feb 16, 2003 | 09:05 PM
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there are NA and turbo type peripheral rotor housings.

the turbo ones less overlap.
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Old Feb 16, 2003 | 10:35 PM
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Ok...well forget the peropheral port...after readin into it a little...that sounds too crazy.

I think i'll go with the bridgeport, or maybe a 'mega-bridge'
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Old Feb 17, 2003 | 03:52 AM
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make sure u have a good engine builder for ur mega bridge, j ports/ultimate bridges are super hard to get it working right.
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Old Feb 19, 2003 | 07:36 PM
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marcus you know my setup... what do you think would be good for my car? my street port doesnt buck at all... makes me wonder if there really is even a street port... what do you think marcus? i was thinking bridge port but i have never been in a bridge port car...
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