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Author Topic: Busa specs  (Read 10944 times)

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Offline fabr

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Re: Busa specs
« Reply #60 on: January 01, 2009, 06:30:54 PM »
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Re: Busa specs
« Reply #61 on: January 01, 2009, 06:31:15 PM »
Objective, remove the 2 stroke, replace with 4 stroke bike motor, Hope to gain performance...car is geared to high right now, can not be changed in the gearbox...
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Re: Busa specs
« Reply #62 on: January 01, 2009, 06:32:44 PM »
Quote from: Masterfabr on January 01, 2009, 06:30:54 PM
But you will only be turning maybe 3-3500 rpm at the CS in first gear.You WANT that?

I just figured maximum torque to trans is all...I explored the option of cvting a bike motor, but at redline in 6th gear i can only see 7500 rpm, not enuff IMO to make speed with a cvt...
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Offline Yoshi

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Re: Busa specs
« Reply #63 on: January 01, 2009, 06:34:15 PM »
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Re: Busa specs
« Reply #64 on: January 01, 2009, 06:37:00 PM »
Quote from: Yoshi on January 01, 2009, 06:34:15 PM
I guess i'm confused, you wanna pull a 2 stroke motor, stick in a motor that's smaller than a busa, but your worried the smaller motor is gonna be too much for a transmission that holds up behind a busa, did I leave something, or possibly everything, out?...lol.......

yes, the gearing between the engine, and the fnr input shaft....I dont wanna fxxk up the fnr... question, can i effectively  change the gear ratio between the engine and fnr from 1:1?
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Offline Yoshi

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Re: Busa specs
« Reply #65 on: January 01, 2009, 06:38:22 PM »
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Offline Engineer

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Re: Busa specs
« Reply #66 on: January 01, 2009, 06:38:43 PM »
Quote from: Masterfabr on January 01, 2009, 06:30:54 PM
But you will only be turning maybe 3-3500 rpm at the CS in first gear.You WANT that?


Then he could shift......... LOL

Hes not going to leave it in first, he just wants to find out the maximum torque in 1st, then he will put more reduction in between the motor and the FNR to get the equivalent maximum torque not to exceed that of the BUSA.

He is going to Gear deeper than they do when they use a Busa.

Geeze 5 pages later.........
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Re: Busa specs
« Reply #67 on: January 01, 2009, 06:38:59 PM »
current fnr gear ratio is like 4.67 or so to one, I have to take it apart and count the teeth, cant remeber the exact number, current setup with engine, the gearing is to high...
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Offline Engineer

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Re: Busa specs
« Reply #68 on: January 01, 2009, 06:43:03 PM »
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Re: Busa specs
« Reply #69 on: January 01, 2009, 06:45:02 PM »
Quote from: Engineer on January 01, 2009, 06:43:03 PM
Any idea what the CVT ratio is when it first engages?

Doesn't really matter cause its not apples to apples.  Even if the ratios were the same, the bike 4 stroke will have more low end than the 2 stroke IMO.

approximately 3:1

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Offline fabr

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Re: Busa specs
« Reply #70 on: January 01, 2009, 06:45:58 PM »
Quote from: Engineer on January 01, 2009, 06:38:43 PM

Then he could shift......... LOL

Hes not going to leave it in first, he just wants to find out the maximum torque in 1st, then he will put more reduction in between the motor and the FNR to get the equivalent maximum torque not to exceed that of the BUSA.

He is going to Gear deeper than they do when they use a Busa.

Geeze 5 pages later.........
Just put the effin busa into 6th gear then. Adding additional gear reduction/increases will just add up to more parasitic losses as I was referring to earlier engineer.Still have to run a jackshaft or some other crap to spin the primary.It won't mate to the busa.
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"

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Re: Busa specs
« Reply #71 on: January 01, 2009, 06:48:01 PM »
were talking chain drive to the fnr, not cvt... clutch pedal and shifter...
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Offline Engineer

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Re: Busa specs
« Reply #72 on: January 01, 2009, 06:48:22 PM »
Quote from: Masterfabr on January 01, 2009, 06:45:58 PM
Just put the effin busa into 6th gear then. Adding additional gear reduction/increases will just add up to more parasitic losses as I was referring to earlier engineer.Still have to run a jackshaft or some other crap to spin the primary.It won't mate to the busa.

I think he is shit canning the CVT with this idea!  ;D ;D ;D
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Offline Engineer

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Re: Busa specs
« Reply #73 on: January 01, 2009, 06:49:08 PM »
I was 21 seconds late on that one.  ;D
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Re: Busa specs
« Reply #74 on: January 01, 2009, 06:50:14 PM »
hell you almost have me confused to what i am doing... ;D
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