Fuel Injection or Carbs? - Sportbike Forum: Sportbike Motorcycle Forums
 
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post #1 of 8 (permalink) Old 06-30-2002, 10:57 AM Thread Starter
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Fuel Injection or Carbs?

In my search for a bike I am faced with a major hurdle in the form of bieng in love with the idea of fuel injection. I am trying to decide between a ZX9 and GSXR750.
I think fuel injection is the way of the future and Kawi is lagging behind with it's carbs. Anyone care to comment? How about long term reliablilty?
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post #2 of 8 (permalink) Old 06-30-2002, 01:42 PM
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As I write this, Eric Bostrom on a carbureted ZX7R is leading about 30 fuel-injected bikes--GSXRs, 998s, R7s, and RC51s. He doesn't appear to be at any disadvantage.

You're right, FI is the future, but it has more to do with smog laws than performance. The fine tuning required to keep emissions low yet provide good throttle response can be attained more easily with the precise mapping of digitally controlled FI.

The advantage of carburetion is that it's familiar technology, well within the abilities of a shadetree mechanic to tune. The Power Commander is bringing fuel injection up to that level, too, but there's still a black-box quality to it that limits access to those with highly specialized knowledge.
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post #3 of 8 (permalink) Old 06-30-2002, 05:11 PM
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DataDan,

You didn't happen to buy that CX650 turbo used from a guy by the name of Tor, did you ?
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post #4 of 8 (permalink) Old 06-30-2002, 06:13 PM
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Quote:
Originally posted by ExiledViking
You didn't happen to buy that CX650 turbo used from a guy by the name of Tor, did you ?
No, I've had mine since new.

Did you happen to ride Harris Grade today? I was southbound on my ST1100 at around noon and saw what appeared to be an RC51 riding northbound with a CBR. Also, seems there was a SBCo Sheriffs Deputy on the south side of the grade, about a half-mile before the summit in one of those big turnouts. Fortunately, I saw him in plenty of time to back off. He appeared to be looking down the hill for northbound offenders coming his way.
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post #5 of 8 (permalink) Old 06-30-2002, 06:19 PM
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No Sir, I wasn't me.
Good to know about the S.O patrol car, though.
Stuck at home today... itching to ride.... have brand new Pirelli Dragon Evos.
Regarding the CX, my father had one for many years here in Lompoc.

John
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post #6 of 8 (permalink) Old 06-30-2002, 09:24 PM Thread Starter
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Hey Viking???

On the highway what kind of mileage are you getting on your RC? How are you liking it?
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post #7 of 8 (permalink) Old 07-01-2002, 09:18 PM
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Talking

I am averaging 40mpg while taking it easy on the highway and I go down to about 32mpg riding more spiritedly.
I changed the front sprocket from 16 down to 15 and installed Yoshimura highmounts, which may have some effect on gas mileage.

LOVe this bike, though !

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post #8 of 8 (permalink) Old 07-02-2002, 05:51 AM
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FI is the way to go for the future. FI allows more fine tuning by being able to adjust the mixtures throughout the rev range whereas carb jetting kind of ties you to a certain part of the rev range(ie, tuned for top end power or mid range).

FI still hasn't opened the gap up enough for it to be a sole decision maker though.

As Dan mentioned, carb tuning is current knowledge for tuners whereas alot of them are just learning the tricks for FI. FI is opening the gap steadily though.

John

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