Variable Valve Timing

[FLSTFIDave]

Cam phasers, we've seen how they work on Fords 5.4, which is discontinued they need maintenance.

Most dont cause a problem these days and nearly all use them . regular oil changes is a must.

Still an issue with Ford twin turbo V-6 motors, the 2.7, the 3.5 and now the 3.0.  Some have cam phaser failures.  I have had the 3.5 and no the 3.0.  So far lucky, no failure but I know people who have had failures.

[IronButt70]

I'm wondering if the 20w50 oil is going to be too thick for the phasers. As mentioned, clean oil is a must. Most cars use with VVT use 5w20 or lighter.

Don't know if there is any truth to this but I was told the 20w oil is needed for the cars to pass start up emission standards. How can any engine operating in hot climates survive long term with 20w oil? It's like water. 

[Hossamania]

My Ford van uses 0w20, V8 motor, in all conditions.

[Ohio HD]

This thread is going way off track. Thanks for contributing.

It'll be interesting to see what if anything Harley Davidson does with the M8 platform and VVT.

[Hilly13]

Well they did it, anyone got an insight as to how it operates as yet?

[FLSTFIDave]

I too am very curious as to how Harley is doing the Variable Valve Timing.  Engine specs show it has a nice torque increase.

[HogMike]

I too am very curious as to how Harley is doing the Variable Valve Timing.  Engine specs show it has a nice torque increase.

Dave: HP and TQ are still below what we have on OUR 2019's!
LOL
Price increase is just a "little" bit more than last year.

Weight is a little bit lighter.

 The VVT is a modified version of the HD patent drawings.

I still want to see the transmission! Some changes there.

[FLSTFIDave]

I too am very curious as to how Harley is doing the Variable Valve Timing.  Engine specs show it has a nice torque increase.

Dave: HP and TQ are still below what we have on OUR 2019's!
LOL
Price increase is just a "little" bit more than last year.

Weight is a little bit lighter.

 The VVT is a modified version of the HD patent drawings.

I still want to see the transmission! Some changes there.

I have seen a couple videos, no one talks about the transmission changes.

True hp is way less and torq is less then in our 2019's.  I have 62K on mine.

[VernDiesel]

What I saw was the 2023 1/2 CVO
117ci    102 HP 125 TQ 10.2-1
121ciVVT 115 HP 139 TQ 11.4-1

for chits n giggles my non emissions compliant F35A cammed
114ci    132 whp 130 TQ 11.5-1

[Propflux01]

Of course it will be less, they are emissions compliant, where our 'upgraded' bikes are not. Moving from 117ci 102 HP 125 TQ 10.2-1 to 121ciVVT 115 HP 139 TQ 11.4-1, a 4 CI difference isn't that much. From the higher Hp, it would appear the VVT carries out a bit further, or is flatter across the line.
     

[Dan89flstc]

VVT in essence replaces the camshaft(s)   

VVT does not necessarily replace the camshaft, this technology has been used in the automobile industry for decades.

[To The Max]

From what i have seen this version has a single cam a phaser and they simply advance the cam timing at pre-determined rpm . and i think the cam guys are already on to it.

[Hilly13]

Really interested to see how it works mechanically and what the software looks like.

[FSG]

[Hilly13]

You are very good at digging stuff up FSG 

[FLSTFIDave]

Very interesting picture you found FSG.  One dealer was saying 20 degrees the cam can be shifted.


Can't wait to ride one

[FSG]

[Hilly13]

Pretty cool, in twin cam speak 40° would be like a 255 off idle to a 267 at full revs with everything in between, I'm sure the grind can be improved apon but for many there will probably be no need, I do wonder how they have set up the software, with that compression and intake close variability managing timing could be tricky, surely there must be more to it than advanced knock sensing.

[hrdtail78]

Is the 40 degrees cam or crank?

[cheech]

Is the 40 degrees cam or crank?

Post 41 

[hrdtail78]

Is the 40 degrees cam or crank?

Post 41 

Got it, thanks.

[Propflux01]

Very interesting! Will stick out a bit it seems. Gonna put a hurt on cam companies I bet.

[Hilly13]

Is the 40 degrees cam or crank?

Post 41 

Got it, thanks.

wish I could pop around for beer to chew this over, be my shout obviously

[VernDiesel]

"Going to put a hurt on cam companies I bet"  I'm hoping just the opposite.  That cam companies can take advantage of the this. Allowing us to use more cam so to speak while retaining low end torque, manners, & control as well as retain most of the longevity of a smaller cam. The new Revolution motor with the benefits of VVT (plus more) is pretty phenomenal. 2 HP per cubic inch. The cams used in the Pan American for its displacement would be very radical & race like without VVT. Can it take the m8 a giant leap. No but a good step better IMO. Lol couldn't you also make it have a pretty wild idle.     

[FloridaJim5]

"Going to put a hurt on cam companies I bet"  I'm hoping just the opposite.  That cam companies can take advantage of the this. Allowing us to use more cam so to speak while retaining low end torque, manners, & control as well as retain most of the longevity of a smaller cam. The new Revolution motor with the benefits of VVT (plus more) is pretty phenomenal. 2 HP per cubic inch. The cams used in the Pan American for its displacement would be very radical & race like without VVT. Can it take the m8 a giant leap. No but a good step better IMO. Lol couldn't you also make it have a pretty wild idle.     

Great Idea!  Instead of a smooth idle, maybe there could be a "Race Idle" or "Sounds like an Evo Idle".  I'm not really joking.....that would be awesome.