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Headers and cam options 

 

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 Post subject: Re: Headers and cam options
Posted: Fri Apr 27, 2012 7:08 am 
Tyre Shredder
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Age: 31

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Ride: ef XR8 / xe fairmont ghia 393.

Location: clare valley
SA, Australia

XR9UTE wrote:
That's right so, if the harmonic balancer pulley of the underdrive set is underdriving the entire accessory drive it will also underdrive the blower if running off the same belt.

I might try changing the harmonic balencer pully back to standard ab sre it all spins up ok.

 

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Ef xr8. Charged 9psi, tw 170 heads,track heat intakes,1.72 rockers, f303 cam, custom plazma man/ rapid cooler, 60lb injectors, tko600, sct eliminator, aeromotive fuel system.

393 xe ghia stage 5 als raceglides c4,9" full spool 31spline moser axles. Will be looking at running high 9s low 10's

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 Post subject: Re: Headers and cam options
Posted: Fri Apr 27, 2012 11:47 am 
EFI Guru
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Ride: 351 Vogue,XH 5.0,'17 5.0 Stang

Location: Perth
WA, Australia

I think you'll have to change the waterpump pulley back too because I think it'll hit the crank pulley.
One of the advantages of a separate drive for the blower I suppose.
I'm going to have to remove the underdrives off my Pursuit for the same reason although I think I'll be able to retain the big waterpump pulley on that engine.
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