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FG XR8 - BOSS 290 Upgrades - Advice required 

 

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 Post subject: FG XR8 - BOSS 290 Upgrades - Advice required
Posted: Sun Oct 01, 2017 12:12 am 
Fordmods Newbie
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Age: 32

Posts: 2

Joined: 30th Sep 2017

Ride: FG XR8 Ute

Location: Melbourne
VIC, Australia

Hi Guys

Just looking for some sound advice on the following situation, please give a detailed response if possible with a good explanation of why.

I'm about to give my FG XR8 Boss 290 a top end freshen up (high km's engine in good condition) by a top motorsport engine builder.

Parts already installed on vehicle
Herrod Cold Air Box
Bosch Iridium Plugs
K&N Oil & Air Filters

Parts ready for Install
Pacemaker Ceramic Coated Headers
Full Exhaust - Pacemaker V8 Ute Race Spec
Melling Oil Pump
Ford Racing Timing Chain Kit

Questions
What other parts do replace at this stage?
Underdrive kit? which one? Part #?
Worth Pulling the heads and honing the bores?
Do i up the compression? I only drive 98 Octane
Cylinder Head Porting required?
Intake Manifold porting required?
Helix spacer?
Valves / Springs / Retainers / Cams, any good value mods available
Injector Upgrade / Cleaning?
Who can tune this beast in Melbourne?

Thanks in advance guys

Cheers Matt
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 Post subject: Re: FG XR8 - BOSS 290 Upgrades - Advice required
Posted: Sun Oct 29, 2017 8:14 pm 
Fordmods Newbie
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Age: 35

Posts: 4

Joined: 31st Aug 2015

Ride: FG XR8 UTE

Location: Sunbury
VIC, Australia

Gday mate.
I have all bolt ons except diff gears.also have cams fitted.. its not bad but if staying N/A go with diff gears. But if you want real power just save for a blower...
I have
Underdrives
Yellaterra plenum
Dual throttle bodies
Oil pump
Exhaust
Tune
Herrod cams
Herrod airbox.

Oh also if you going full exhaust make sure you get 1 & 7/8 headers, so if you go forced induction the headers will suit.


I just need to do diff gears now...

But in my opinion going a kennebell blower straight up would of been the better option. Even though i would of still done engine mods after lol. Nature of the beast. 5.4 are a long stroke motor a suit boost over NA. Even though NA you can get some power out of them with plenty of coin. Or use daron mid sleeves and increase bore size and make it a 5.88L... again mate all coin....

Ive know a guy with a bf boss290 higher comp. Crow gtpx cams some head work made 330rwkw. Good street power. Cost unknown. Blower will make 360 to 380rwkw stock motor safely.

 

_________________

Falcon FG XR8 ute 263rwkw tune, yella terra plenum, truetrac, pacemakers, xforce and removed rear muffler.
Ford G6ET stock

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 Post subject: Re: FG XR8 - BOSS 290 Upgrades - Advice required
Posted: Sun Oct 29, 2017 8:33 pm 
Fordmods Newbie
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Age: 32

Posts: 2

Joined: 30th Sep 2017

Ride: FG XR8 Ute

Location: Melbourne
VIC, Australia

Thanks for the reply mate
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