Ducati throttle SPACER

craig bush · Aug 30, 2021

MaverickiB said:
IIRC the Domino throttle is a "quick" throttle with 60 degrees of throw whereas the OEM throttle has 90 degrees of throw. My commuter bike, an Energica Ego, has a 60 degree throw throttle and it is massively better than the V4 throttle. I hate how much you gotta rotate the OEM V4 throttle. Will very likely get the Domino one after hearing Craig's praises, been eyeing it for a while.

It’s not a “budget” mod and a case can be made regarding ROI, but I really do love it. The buddy with the v4r feels the same.

endodoc · Aug 30, 2021

I need to rent a V4 throttle from someone who isn’t using it. I need to take voltage readings off the pots so I can see if I can mod a Domino to work on the 99 platform.

craig bush · Aug 30, 2021

endodoc said:
I need to rent a V4 throttle from someone who isn’t using it. I need to take voltage readings off the pots so I can see if I can mod a Domino to work on the 99 platform.

I’ll send you mine if you want it.

endodoc · Aug 30, 2021

craig bush said:
I’ll send you mine if you want it.

Thanks man. I’ll shoot you an email tonight.

brad8266 · Aug 31, 2021

Went out tonight and verified throttle position properly reads from 0% to 100% with the spacers installed. Verified via my aim solo 2 DL

endodoc · Aug 31, 2021

brad8266 said:
Went out tonight and verified throttle position properly reads from 0% to 100% with the spacers installed. Verified via my aim solo 2 DL

The throttle spacers should only effect the interface between the throttle tube and the pot controller. They should have zero effect on the pot’s. The pot”s should always read 0-100. Additionally, 0-100 is the position of the pot’s closed to the pot’s fully open and may or may not represent throttle mapping to the actual injector body.

brad8266 · Aug 31, 2021

endodoc said:
The throttle spacers should only effect the interface between the throttle tube and the pot controller. They should have zero effect on the pot’s. The pot”s should always read 0-100. Additionally, 0-100 is the position of the pot’s closed to the pot’s fully open and may or may not represent throttle mapping to the actual injector body.

that’s all well and good but isn’t relevant to what I was trying to see. What I was looking for was the spacer inhibiting the throttle twisting full open or returning fully closed. Does not appear to be the case.

BP PanigaleV4S · Aug 31, 2021

Yeah, I think the issue is if they aren't dimensionally correct it can inhibit either 0% or 100% throttle.

endodoc · Aug 31, 2021

brad8266 said:
that’s all well and good but isn’t relevant to what I was trying to see. What I was looking for was the spacer inhibiting the throttle twisting full open or returning fully closed. Does not appear to be the case.

Ok, I guess I don’t see how that’s possible The throttle spacers don’t come into contact with any part of the spring load potentiometer body that could possibly limit travel. It’s strictly an interface to the tube and the tube is free floating

endodoc · Aug 31, 2021

Didn’t mean to hijack your post brad, glad it worked out.

BP PanigaleV4S · Aug 31, 2021

If we were going to test this, does anyone have the means to 3d print some off size spacers?

endodoc · Aug 31, 2021

bp_SFV4 said:
If we were going to test this, does anyone have the means to 3d print some off size spacers?

Bit slow today, rode 300 fricken miles. What are you trying to test?

BP PanigaleV4S · Sep 1, 2021

I was just curious how far off in dimension the spacers would have to inhibit the throttle. I doubt its something you could test by riding, you'd likely have to read it with some type of tool.

endodoc · Sep 1, 2021

The Bren handheld does it. I have one. I seriously can’t mechanically see how the spacers could ever impact the mechanical aspects of the potentiometer housing unless they were grossly huge enough to interfere with some part of the throttle assembly housing. They don’t come in contact with any part of the assembly that impedes rate limit of the spring loaded assembly. They only contact the throttle tube which again is free floating and itself has no rotation limitations. If you see otherwise, LMK I’ll look at it.

brad8266 · Sep 1, 2021

endodoc said:
The Bren handheld does it. I have one. I seriously can’t mechanically see how the spacers could ever impact the mechanical aspects of the potentiometer housing unless they were grossly huge enough to interfere with some part of the throttle assembly housing. They don’t come in contact with any part of the assembly that impedes rate limit of the spring loaded assembly. They only contact the throttle tube which again is free floating and itself has no rotation limitations. If you see otherwise, LMK I’ll look at it.

you may be correct, I don’t know but seems like people have had issues with spacers or zip ties causing the throtttle to be cracked open a little when released, which was why I was curious to just validate I get a 0 and 100 reading when released and full to the mechanical stop.

endodoc · Sep 1, 2021

brad8266 said:
you may be correct, I don’t know but seems like people have had issues with spacers or zip ties causing the throtttle to be cracked open a little when released, which was why I was curious to just validate I get a 0 and 100 reading when released and full to the mechanical stop.

We’ll it can for sure happen if there is interference and it actually did happen to me but it was an issue between the pot control and the housing. I had one of the first Jetprime aluminum housings for the 99. I had to grind out spots on the inside to allow the pot wheel to freely rotate. Total mess. I can see someone making some spacers out of something that rubs on the housing

BP PanigaleV4S · Sep 2, 2021

It makes more sense that they'd be rubbing against the housing and not allowing it to rotate freely.

I may try one of the CNC Racing throttle tubes. I'm curious what the sport version offers.

https://www.ducatiomaha.com/collections/panigale-v4/products/mpa10b-cnc-racing-throttle-control-tube

WyldCFH · Sep 2, 2021

bp_SFV4 said:
It makes more sense that they'd be rubbing against the housing and not allowing it to rotate freely.

I may try one of the CNC Racing throttle tubes. I'm curious what the sport version offers.

https://www.ducatiomaha.com/collections/panigale-v4/products/mpa10b-cnc-racing-throttle-control-tube

It does not change the throttle twist at all. The sport version is just the no-slop version of their standard tube, which is the same as stock

Mick1976 · Sep 2, 2021

Be careful on which CnC racing throttle tube you actually get in hand. I have had both the older version MPA01B is identical tolerance to the oem tube. The correct one you want is the MPA10B which is correct its machined close to as if you had the spacers. If you order from Omaha good chance you will get the older tube I know that cause local buddy just recently ran into that. If you order from Bellissi Moto you will get the correct one.

CNC Racing Delrin "SPORT" Thottle Tube for Fly by Wire Throttle for Ducati (bellissimoto.com)

Regardless using the spacers, CnC racing tube its critical to make sure the throttle is closing all the way. If you turn on ignition TPS won't reset and bike will not start.

chris16 · Sep 3, 2021

what i like about the MPA10B is that they are not trying to cheat you.

Ducati throttle SPACER

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