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Buell Motorcycle Forum » XBoard » Buell XBoard Archives » Archive through June 24, 2005 » Let's open this can of worms again « Previous Next »

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Kowpow225
Posted on Thursday, June 23, 2005 - 07:28 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

After reading this test several times, I'm looking for more specifics and trying to fill in some scientific gaps. Read this first.

http://www.badweatherbikers.com/buell/messages/3842/66430.html?1090474658

When reading about the FAST intake, Englishman said that he redirected the PCV hoses out of the intake tract along with the IAT sensor.

Q1: What effects do you think PCV gasses have on final horsepower/torque numbers? Does it change the numbers?

On the SVVS stack Englishman writes that the downward facing cone and velocity stack do not 'line up'.

Q2: Is this coincidental? Would this variance impact final numbers?

Q3: What improvement do you think a 12 airbox lid alone would have yielded with a stock stack?

Q4: Is insulating the bottom of the airbox truly squeezing extra ponies out of 'thin air'? (deliberate pun)

Corey writes that his claims of 6-7 hp were utilizing an open type of airbox system and not the entire lid.

Q5: What does this modification alone yield assuming the SVVS stack was not in place?



FIRE AWAY!
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Wyckedflesh
Posted on Thursday, June 23, 2005 - 07:37 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

On the SVVS stack Englishman writes that the downward facing cone and velocity stack do not 'line up'.

Q2: Is this coincidental? Would this variance impact final numbers?


It in fact copies the positional relationship with the stock stack and the stock XB12 airbox cone.

Q3: What improvement do you think a 12 airbox lid alone would have yielded with a stock stack?

This was already addressed and on a dyno showed a 3hp gain on an otherwise stock XB9 and a 5hp gain on a race kitted XB9.
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Djkaplan
Posted on Thursday, June 23, 2005 - 07:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Venting the breather lines (on Tubers) is supposed to be worth 1 free HP.
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