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Offline dsrace

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Re: single seater
« Reply #15 on: May 08, 2016, 06:02:05 PM »
you do have to take into consideration that its a spacer plate motor. so he dropped comp and i`m not really sure how much. i know i have talked to enemy about this and i like his idea better. now a slight bore and drop 1\2 point with good parts and 16 to 18 psi boost. spacer plate i believe they can go 22 to 25 psi with supporting mods. i know spacer plates lose some bottom end and make it up on the top and that`s fine for a drag bike but not rails. it is a realistic hp # but does seem a touch low at 12 psi. i was expecting 275 hp or there abouts.
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Offline dsrace

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Re: single seater
« Reply #16 on: May 08, 2016, 06:03:25 PM »
at 850 lbs i bet it feels like a rocket though.
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Offline fabr

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Re: single seater
« Reply #17 on: May 08, 2016, 06:25:44 PM »
Quote from: dsrace on May 08, 2016, 06:02:05 PM
you do have to take into consideration that its a spacer plate motor. so he dropped comp and i`m not really sure how much. i know i have talked to enemy about this and i like his idea better. now a slight bore and drop 1\2 point with good parts and 16 to 18 psi boost. spacer plate i believe they can go 22 to 25 psi with supporting mods. i know spacer plates lose some bottom end and make it up on the top and that`s fine for a drag bike but not rails. it is a realistic hp # but does seem a touch low at 12 psi. i was expecting 275 hp or there abouts.
You gotta start with a realistic N/A HP number.I'll give it a 150. Add approx 10HP per PSI boost will give a total of 270 at the engine countershaft. Subtract at least 10% for driveline losses and you will have 243. Seems pretty spot on to me.
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Offline dsrace

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Re: single seater
« Reply #18 on: May 08, 2016, 09:00:02 PM »
makes sense and a dyno before turbo would be nice how ever and not saying this is all bikes but with just exhaust and a good tune n/a here is a dyno sheet at the wheels.

https://www.dragtimes.com/Suzuki-Hayabusa-Timeslip-25629.html
« Last Edit: May 08, 2016, 09:02:27 PM by dsrace »
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Offline sandracer1

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Re: single seater
« Reply #19 on: May 09, 2016, 06:12:43 PM »
That is my ride with double HP. :u That would be one fun and extremely mean ride, more than a handful.

While I have never driven a shifter and in my view slows you a huge amount due to the CVT always being at peak rpm. But if you could get a CVT to hold all of the RPM's of a Busa it would be a different animal all together.

But I would love to try that shifter out!
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