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upgraded valve springs 

 

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 Post subject: upgraded valve springs
Posted: Mon May 25, 2015 11:14 am 
Smokin em up
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Age: 36

Posts: 252

Joined: 18th Apr 2009

Ride: ba mk2 xr8

Location: nyngan
NSW, Australia

hi guys was just wondering i have a standed ba xr6 i went and bought an xr6 turbo kit for it and the other day i called up to get it tuned and the bloke sed i had to upgrade my valve springs to run standed or any desent boost and i want to run about 10 to 12 psi so my question is is this possable on a standed motor and do i have to upgrade the valve springs thanks
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 Post subject: Re: upgraded valve springs
Posted: Mon May 25, 2015 12:49 pm 
Getting Side Ways
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Age: 55

Posts: 451

Joined: 3rd Jan 2005

Ride: AU XR6 with BF Turbo engine

Location: Sydney
NSW, Australia

depending on your tuner and the condition of the motor, and how you drive it, it will last, but yes you need to do springs

 

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RIP :( 1x confused Falcon..EL Falcon with full AU running gear...VCT, 5 speed, IRS, AUII front suspension, brakes, and steering RIP

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 Post subject: Re: upgraded valve springs
Posted: Mon May 25, 2015 4:46 pm 
Getting Side Ways
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Posts: 700

Joined: 1st Jan 2006

Ride: Lots, all Fords

Location: Hamilton
New Zealand

With 12psi boost on the back side of the intake valve you have 30lb less valve spring pressure, you're probably going to rev it harder, and how many k's have those stock springs already got on them.....

Yes you need new upgraded valve springs

 

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XA Faimont 351C, AU2 XR8 Manual 5.0, DA LTD 5.0, Mk1 Capri 5.0, 1995 Mustang 5.0, EF2 XR8 Manual, EF2 Fairmont Ghia 5.0, AU3 XR8 Auto, AU2 XR8 Auto, AU2 XR8 Manual Ute, TE Cortina 5.0 Manual, DU LTD 5.0 soon to be manual

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 Post subject: Re: upgraded valve springs
Posted: Sun May 31, 2015 4:03 pm 
Smokin em up
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Age: 39

Posts: 211

Joined: 21st Oct 2010

Ride: turbo falcon

Location: adelaide
SA, Australia

Its very hit an miss with these motors some are ok some not so great, mines a unopened unknown kms ba n/a motor with 12psi on stock springs, I think trick is to keep exh back pressure as low as possible. Makes 290rwkw and 11.4@121mph. Springs are cheap they are just a pita to fit.
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 Post subject: Re: upgraded valve springs
Posted: Tue Jun 02, 2015 7:44 pm 
Smokin em up
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Age: 36

Posts: 252

Joined: 18th Apr 2009

Ride: ba mk2 xr8

Location: nyngan
NSW, Australia

ok guys so i went and bought a set of plazman valve springs to put in and what a prick to put in lol now im just wondering cams i should use was looking at a crow cam
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