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extractor selection... 

 

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 Post subject: extractor selection...
Posted: Tue Sep 13, 2005 3:09 pm 
Getting Side Ways
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Age: 31

Posts: 1085

Joined: 6th Nov 2004

Ride: BF XR Turbo

Location: Castle Hill
NSW, Australia

im in need of a new set of extractors,

i was just wanting some info on what effects what? ie primary and secondary sizes?

i have a xf, 250xflow alloy head, stage 2 cam (1800-4800), redline inlet manifold, 350 holley, and a 2.5in 1 muffler exhaust..


i am leaning towards pacies however other suggestions are welcome


what would the performance difference be between say

ph4410 (primary 41mm, seconday 44, outlet 51)
& ph4460 (41prim, 51sec, 63out)

i notice the secondaries on the ph4460 are bigger than that used on the 4.0l OHC?


any info or preferences appreciated

cheers mitch

 

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BF XR6T 6spd Auto. 60lb injectors, Hybrid Cooler, Custom Piping, Custom Surge Tank, Actuator.

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Posted: Fri Sep 16, 2005 1:19 pm 
Tyre Shredder
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Posts: 366

Joined: 1st Jul 2005

Location: perth
WA, Australia

want a really hot tip to make you exhaust a 2 pulse system like a v8?
a 250 header has two groups of three pipes, if you take number two pipe and put in on number four and vice versa (following so far)
this way you ll have two cylenders firing on a bank of three at any time.
but to make it work you have run a twin system to the muffler at least.
trust me i did it to my 250 and know body knew it was a 6. All i had was a race magnum muffler with 1.5 inch pipes to the mufflers and 2.5 from the muffler out.

(got that from an old school speedway guy who was obi won on a 250)

 

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Posted: Fri Sep 16, 2005 1:57 pm 
Getting Side Ways
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Age: 31

Posts: 1085

Joined: 6th Nov 2004

Ride: BF XR Turbo

Location: Castle Hill
NSW, Australia

thanks for the tip, i just want to replace my damaged extractors atm.. im happy enough with the sound of it..

 

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BF XR6T 6spd Auto. 60lb injectors, Hybrid Cooler, Custom Piping, Custom Surge Tank, Actuator.

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