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Plenum & Race Box How Much More Hp?


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  • Member For: 12y 10m 15d

Hi ive got a 07 bf ute that makes 309rwkw, it has a xforce 4 inch dump, big cat twin 2.5 system, nizpro cooler, id 1000 injectors, walbro pump and a standard opened up air box, if I get an intake plenum and a race air box how much more power will it make? Would I be better off getting a surge tank and e85 tune instead?

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  • flame magnet
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  • Member For: 16y 9m 10d
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  • Location: adelaide hills- 'race air' central

dont need a surge so much for a ute. ultimately just a precaution. valve springs will need to be looked at next...

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  • Member For: 14y 7m 27d
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  • Location: Yarra Valley

Don't worry about a plenum atm. I would've thought you'd be making more than 309 atm to be honest. What boost is it running ?

Next I would have thought air box, so your piping is shorter, then perhaps a surge tank. E85 depends what state you live in. In VIC it's a pain in the ass to get unless your buying it in drums and then pretty costly.

Also valve springs may need replacing in the future but not atm I wouldn't have thought. Mine were starting to show signs of float with 18psi and over 370rwkw so I think you'll be right but each car is different.

Also look into a turbo port and stronger actuator.

Edited by webby324
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  • Donkey Dick
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  • Member For: 14y 11m 7d
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You need larger injectors, twin pumps & fuel line that is compatible with Ethanol to run E85, not just a surge tank. Cost adds up if you do it properly...

Seeing as you already have ID1000's I'd be looking at twin 044 pumps mounted in the tray with a generic 3L surge tank, -6 teflon braided dual lines to a PW twin feed rail, aeromotive reg with -6 single teflon braided return line & a PW airbox tuned on E85.

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  • Member For: 15y 9m 3d
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Don't worry about a plenum atm. I would've thought you'd be making more than 309 atm to be honest. What boost is it running ?

Next I would have thought air box, so your piping is shorter, then perhaps a surge tank. E85 depends what state you live in. In VIC it's a pain in the ass to get unless your buying it in drums and then pretty costly.

Also valve springs may need replacing in the future but not atm I wouldn't have thought. Mine were starting to show signs of float with 18psi and over 370rwkw so I think you'll be right but each car is different.

Also look into a turbo port and stronger actuator.

Theres plenty of united servos that sell it in VIC

You need larger injectors, twin pumps & fuel line that is compatible with Ethanol to run E85, not just a surge tank. Cost adds up if you do it properly...

Seeing as you already have ID1000's I'd be looking at twin 044 pumps mounted in the tray with a generic 3L surge tank, -6 teflon braided dual lines to a PW twin feed rail, aeromotive reg with -6 single teflon braided return line & a PW airbox tuned on E85.

All the parts listed above are NOT required for your car to make decent power, you would only NEED a surge tank & 044

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  • Member For: 13y 10m 21d
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I think slash meant to use those parts If intending to run on E85.

If it where my car I'd make a surge with 044, add a cold air intake, change the wastegate actuator and valve springs then retune

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