ChicagoSpyder
New member
Just like an F3L, although I don't think you ever get to the hypothetical 7th gear on the F3L, maybe a 6.5 gear LOL
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Has anyone successfully changed sprockets on the F3 Limiteds?
- Thread starter vitodivita
- Start date
Just like an F3L, although I don't think you ever get to the hypothetical 7th gear on the F3L, maybe a 6.5 gear LOL
Here is the post from BRPcare about the sprocket changes that I've been looking for...larryd
https://www.spyderlovers.com/forums...Cares-please-comment-on-the-new-line-up/page3
See post #75
https://www.spyderlovers.com/forums...Cares-please-comment-on-the-new-line-up/page3
See post #75
And the follow up telling us it didn't work from one of the people who tried to do just that is in the same thread at post #88 - and there are more elsewhere who've reported exactly the same failure; but so far, AFAIK, none who've reported success at changing the sprocket size on any Spyder while retaining the OE ECU!! :banghead:
vitodivita
New member
Right the guy ended up with errors and was pleading for a rep from BRP to help him. Of course he didn't follow up with anybody on the forum on the issue so it's a total mystery as to if it got remedied or not.
I do have an e-mail out to BRP so I can get an official word from them. They escalated it to senior folks so I should get an answer soon.
We reached out to a local dealer and they seemed relatively confident about it but also never dealt with that request before.
Will update when I have more information.
I do have an e-mail out to BRP so I can get an official word from them. They escalated it to senior folks so I should get an answer soon.
We reached out to a local dealer and they seemed relatively confident about it but also never dealt with that request before.
Will update when I have more information.
troop
Well-known member
Looking at Partshark, Euro/AU/Japan F3-S come with 79t rear pulleys, and CA/USA have 89t. Part numbers are the same between USA F3 LTD and AU/JP/EU rear pulley/belt. Looks like $339 for the 79t pulley/$319 for the belt and corresponding labor. Not much sense swapping the pulley/belt at home and not be able to drive it to the dealership for ECU upgrades. Push it onto a trailer I guess 
I'll be watching...
I'll be watching...Peter, but then on post #89 BRP steps back in asking for more information to sort this out...But nothing else reported after that??? So What Happened??? larryd
Apparently, it didn't work!! :shocked: At least, his dealer couldn't get it to work & either didn't get the necessary support to make ut do so from BRP, or BRP, Mactim, &/or the dealer just gave up!! :sour: Just like seems to have occured for everyone else who's tried to change sprockets so far?!! :banghead:
I don't really know this, but from the failed attempts I've seen/heard about, I sorta suspect that there are more fields & spots in the computer software suite that actually refer back to the expected gearing/sprocket size somehow than just the one selection/spot BRPCare has mentioned so far, and they do so in such a way that unless it all matches... :cus: That current selection seems to ONLY work on those models & in Regions where there is already a choice of sprockets available - ie, Base F3/ F3-S; but even then it works ONLY if ALL of the other computer & tuning options & the respective settings reflect the choices that usually accompany that particular sprocket selection!! So if you have a different model Spyder or are in a different Region (ie, North America vs EU/Aus etc) it either means you need to accept compromises in the basic settings that generally go with your Country/Region across the entire range of software suite controlled settings (ie, amongst other important things, you'll probably find no radio stations that work; get kph not mph on your dash; need different headlight globes & wiring or changes to the control set-up; yada, yada, yada...) OR it takes a whole new & completely Custom ECU to even get the engine to run, and then it's WITHOUT the VSS, ABS, DPS, EBD, etc!! :gaah:
That said, while I've had some exposure to computer controlled engine tuning & vehicle control software, that was only as an 'educated user' & it was a fair while back too; but I still feel pretty sure that if anyone can sort the 'normal' BRP supplied software suite & ECU to let you successfully change & run the rear sprocket, it'll be Jase/ECU Xtreme, cos that's what he does extremely well!! (Pun intended! :roflblack: ) :thumbup:
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Changing the sprocket is not a problem we have a few bikes running around with this mod, my problem is i have struggled to find my data on what changes i made to make this work and its more than just a change in the mapping but i will not divulge to much info at this stage.
one of my customers im trying to get hold of so i can have his bike back for a few days so i can go through and reconfigure my changes.
will keep you guys informed on my progress
Jase
one of my customers im trying to get hold of so i can have his bike back for a few days so i can go through and reconfigure my changes.
will keep you guys informed on my progress
Jase
308gunner
Member
thank you...ive always felt that you can UPGRADE the belt and sprocket on a f3-base to a f-3 sport...my mechanic mentioned this too..BUT...not the opposite(DOWNGRADE)...and i know the upgrade wont work on an RT....more work needs to be done..to be honest i wouldve liked to see BRP..make the 2020 RT and touring with a 89 tooth sprocket.
vitodivita
New member
Just to follow up, BRP's rep's got me nowhere, they told me to ask the dealership, they just flat out had nobody to give me a solid answer.
Asked the local dealer said maybe but never did it before, would need to dig deeper to see if it can be done or not.
My friend and I just got back from a lengthy trip and his tuned Limited just threw a check engine light for O2 sensor, hoping it was just crappy fuel and a picky tune, so he's gotta battle that now.
Asked the local dealer said maybe but never did it before, would need to dig deeper to see if it can be done or not.
My friend and I just got back from a lengthy trip and his tuned Limited just threw a check engine light for O2 sensor, hoping it was just crappy fuel and a picky tune, so he's gotta battle that now.
Jase, I'm larryd a 2014 RTS owner wanting the 89T set up on my RT...I have a new belt and sprocket in my garage waiting for this to happen...
When you get "all your ducks in a row" please contact me to make this happen...
I know there are several RT owners wanting this along with several F3 owners wanting to make a change...Some 79T to 89T and others 89T to 79T...
THANK YOU FOR KEEPING US INFORMED...VERY MUCH APPRECIATED...
larryd
Bottomline2000
New member
What tune is your friend running?
vitodivita
New member
Monster fuel injection stage 2 tune. Just needs a larger sprocket and it’ll really be a screamer.
vitodivita
New member
Well guys here’s the deal.
Was at the dealer today, there was an F3 S in their shop, they (I had no idea) were trying to transplant a different sprocket, going to the smaller sprocket.
This customer has deep pockets and the dealer swapped the belt, sprocket, and trans control module, $1200 in parts alone. After 6 weeks waiting on BRP, they officially stated it is not possible, and to reengineer the spyder to accept a different sprocket would merit just buying a new machine. So we have officially given up! Sorry guys. Going to search for an S model.
Was at the dealer today, there was an F3 S in their shop, they (I had no idea) were trying to transplant a different sprocket, going to the smaller sprocket.
This customer has deep pockets and the dealer swapped the belt, sprocket, and trans control module, $1200 in parts alone. After 6 weeks waiting on BRP, they officially stated it is not possible, and to reengineer the spyder to accept a different sprocket would merit just buying a new machine. So we have officially given up! Sorry guys. Going to search for an S model.
PinkRosePetal
New member
Since the sprockets and belt are essentially dumb the bike can't know what is fitted. However, the feedback must be the encoder disc for the vehicle speed. Using the original encoder will give an engine revs to road speed mismatch. If a replacement encoder is fitted with the same change in ratio of slots equal to the change in sprocket teeth ratio the bike won't know any different. I'd guess an electronic pulse multiplier could be used to intercept the speed sensor signal and multiply it to provide the necessary change in ratio. The speedo will of course show incorrect speed but this is not insurmountable. All imho, of course.
Just thinking about it...the front encoder signal would also need to be changed to match the rear to prevent a mismatch in wheel speed front to rear. That would seriously effect the abs and nanny systems!
Just thinking about it...the front encoder signal would also need to be changed to match the rear to prevent a mismatch in wheel speed front to rear. That would seriously effect the abs and nanny systems!
Rattlebars
New member
I did find this post from 2016 that one can change the sprocket from BRP Care.
https://www.spyderlovers.com/forums/showthread.php?96874-BRP-Cares-please-comment-on-the-new-line-up&p=1173269&viewfull=1#post1173269
https://www.spyderlovers.com/forums/showthread.php?96874-BRP-Cares-please-comment-on-the-new-line-up&p=1173269&viewfull=1#post1173269
ChicagoSpyder
New member
Good info to know.
Hey Vito, if you use the sprocket from an S model in a Limited you should just be able to use the ECU from an S in the Limited with the new sprocket....or am I missing something? :dontknow:
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