Learning2race
Expert Class
Posts: 138
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posted February 14, 2009 05:24 PM
speedo setting?
Thawing out from winter - just spent the day putting the bike back together. I have a speedohealer on the way. Can anyone provide me with the correction factor required for a 16 front 45 rear combination?
Thanks in advance.
  
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gilberjj
Needs a job
Friend of Fast
Posts: 3196
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posted February 14, 2009 05:59 PM
how about a 16 front with stock rear too?
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Compton
Zone Head
Posts: 969
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posted February 14, 2009 06:45 PM
you can punch it in on their website and it will tell you what to press in.
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b.w.
zx14, little longer, little louder, little lower.
08 Busa, just a little longer and louder and lower than the 14
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dubious
Needs a life
Needs more time to ride!
Posts: 8442
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posted February 14, 2009 07:10 PM
 Edited By: dubious on 15 Feb 2009 03:11
stock speedo is off by 8%, so subtract that right off the top
to hit the rev limiter on the stock gears, subtract another 8%.
I used -8 + -10, so i would know my speedo is off by -10% reading low, but could still hit the rev limiter.
stock gearing= 41 / 17 = 2.41
41 /16 = 2.56 therefor 2.41 / 2.56= .94 or -8% + -8% = -16%,
I still used total -18% to be sure I was hitting the rev limiter. ( 16/41 gearing will pull very close to 186 mph stock limiter)
45 / 16 = 2.81 therefor 2.41 / 2.81 = .85 or - 15 %, therefor use -8% + -15% = -23%
your speedo will be very accurate, and top speed will be around 158 mph limited by the rev limiter.
To surmise, you need to subtract 8% for speedo error.
Then subtract the percentage of gear ratio change.
I have not ran top speed events with timing lights or radar guns,
This as close as my math has gotten me.
The 8% speedo error has been verified by many in the past though already.
____________
natural selection.....
destiny will overcome intervention.
Some are not worthy of the effort.
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juicey69
Novice Class
slowpoke
Posts: 44
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posted February 14, 2009 07:12 PM
learning;
mind if I ask you if you got a good deal for the healer? I'm on the market for one right now
thanks
____________
Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles ..." - Hunter S. Thompson
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bigdtd
Needs a job
Interceptors
Posts: 4209
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posted February 15, 2009 05:43 AM
i use -8% for stock(17/41) just to verify dubious's numbers. it is right on with the gps.
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2006 Black ZX-14,6 inches over,16/42, flies out,BMC Street Filter,Brock's Street Meg,Brock's Radial Mount Strap,PClll with Race map,Dynojet LCD w/Techmount, ZX-14 fender eliminator,Pilot Power2CTs,Speedohealer,Pazzo Levers,Cox Radiator Guard, Garmin Nuvi 265WT
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Ninja14
Pro
Posts: 1136
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posted February 15, 2009 10:52 AM
Hope you don't like using the gear indicator.....it will only be half useful w/ those gears.
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2006 Turbo ZX-14.
2005 V-max 20th Anniv.
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dubious
Needs a life
Needs more time to ride!
Posts: 8442
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posted February 15, 2009 11:02 AM
agreed.
Mine would show the proper (6th) gear when i made the gear change, then after about 4 seconds the ecu would intercept with its calculated value to 5th gear indicated.
____________
natural selection.....
destiny will overcome intervention.
Some are not worthy of the effort.
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juicey69
Novice Class
slowpoke
Posts: 44
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posted February 15, 2009 11:24 AM
pardon,my ignorant question;
does the healer will affect the gear readings? if so how?
any inputs?
thanks
____________
Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles ..." - Hunter S. Thompson
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bigdtd
Needs a job
Interceptors
Posts: 4209
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posted February 15, 2009 11:47 AM
Edited By: bigdtd on 15 Feb 2009 19:47
depends on how much you adjust but at -8% it is ok down in the lower gears but shows 6th briefly then reverts to 5th after shifting to 6th at normal speeds. it will show 6 at extremely low speed for 6th gear. but mostly it works fine for 1-5 gears with the healer set at -8%
it adjusts how many pulses are recieved by the speedo from the sending unit near your front sprocket.
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2006 Black ZX-14,6 inches over,16/42, flies out,BMC Street Filter,Brock's Street Meg,Brock's Radial Mount Strap,PClll with Race map,Dynojet LCD w/Techmount, ZX-14 fender eliminator,Pilot Power2CTs,Speedohealer,Pazzo Levers,Cox Radiator Guard, Garmin Nuvi 265WT
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dubious
Needs a life
Needs more time to ride!
Posts: 8442
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posted February 15, 2009 12:51 PM
the ecu computes what gear it should be in when it see's rpm, speed, gps and reverts to the computed data, rather than the gps voltage indication, and sends a computed signal, rather than actual signal to the dash
____________
natural selection.....
destiny will overcome intervention.
Some are not worthy of the effort.
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juicey69
Novice Class
slowpoke
Posts: 44
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posted February 15, 2009 01:42 PM
Thanks for the info,now is the healer a good investment at all?
____________
Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles ..." - Hunter S. Thompson
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dubious
Needs a life
Needs more time to ride!
Posts: 8442
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posted February 15, 2009 03:21 PM
Edited By: dubious on 15 Feb 2009 23:21
of course it is!
It defeats the speed limiter, and corrects your speedometer!
Without the speedohealer, ...If you drag race in the 1/4 mile with low gears like 16-44 or 16-45 with motor work, nos or turbo, you'll be quite dissapointed to have the limiter preventing you from exceeding ~155 + mph , effecting the trap speed and ET!
____________
natural selection.....
destiny will overcome intervention.
Some are not worthy of the effort.
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pazx14rider
Zone Head
Posts: 953
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posted February 15, 2009 06:27 PM
Your gear reading is screwed up when you pull your secondaries anyway.
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Sergent
Expert Class
Posts: 106
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posted February 15, 2009 07:19 PM
My secondaries have been out on my 06 since jan of 07 and has no affect on gear indicator
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gilberjj
Needs a job
Friend of Fast
Posts: 3196
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posted February 15, 2009 08:09 PM
My gear indicator is slow. Pisses me off.
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pazx14rider
Zone Head
Posts: 953
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posted February 16, 2009 06:49 AM
Trust me sergent watch it its slow!
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Ninja14
Pro
Posts: 1136
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posted February 16, 2009 06:23 PM
It displays the gear based on calculations...not direct sensing. If you correct for more than 16/42 (or equal ratios) you will see 1/2/3/3/4/5 as you shift. If you pull the clutch in and maintain highway speed it will go up to 6 as RPMs drop but roadspeed remains.
The delay is the calculations lag....more evidence of nondirect sensing.
____________
2006 Turbo ZX-14.
2005 V-max 20th Anniv.
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